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Page 1: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

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CONTENTS

1 General

11 Description

12 Responsibility for Design and Materials

13 Compliance with Manufactures Specifications

14 Maintenance Period

15 Elootricity Supply

16 Definitions

2 Materiels lno Equipment

21 lanterns

22 Wiring and Switching I

23 Columns and Brackets

24 High Mast Lighting

25 Protection Against Corrosion

251 PlIiminll

252 Galvanizing

3 ConstrllCtian Methods

31 Excavation and Reinstatement

32 Concrete Work

33 Conduits Fittings and BoxesI I 34 Pull boxes or Junction Boxes

35 Testing

4 Meas4rment

O Payment

6 Information to be Supplied by Bidder

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7 Other details 2Q

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I GENERAL SPECIFICATION FOR STREET LIGHTING I i

I 1 General

11 Description

This work shall consist of the supply of all lanterns complete brackets

columns and other supporting devices bases cables switchgear and all necessary

ancillary equipment together with the transportation storage assembly erection

connection and testing at the same in order to supply 2 complete street lighting system

in accordanqe with the details shown on the plans and as specified herein and in the

Special Provisions if any Design of the system shall be included

middot12 Responsibifity formiddotDesign arid Materialsmiddot

The Contractor shall be solely responsible for the adequate design and tl-

co-ordinated functioning of all goods and construction furnished under this contract All

the component parts shall be designed so as to ensJre their proper co-ordinated

functionin and operation All equipment shall be of the makers standard models and

shall include all recent improvements in design and materials All materials used in

manufacture and construotion shall be of high quality and fully in accordance with the

beat modern practice

The equipment offered and the work done shall be suitable for continue

trouble-free operation under adverse climatic conditions of heavy rain high humidity ood ~

intense sunlight The equipment must be able to withstand over long periods ambient c

tempratyr9s varying from a normal of 4deg C to a maximum of 500 C i_

All materials used in themanufacture and construction shall be frBe fron

defects and shall be made having proper regard for safety and in strict accordance wit

all the relevant requirements and regulations of the Electricity Supply Authority

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13 Compliance with Manufactures Specifications

Tha Ccntractor shall ensure that the equipment and parts used will be

entirely suitable for t~evvork to be performed and that they will be manufaotured to

proper clearances and fit He shall further ensure that the loading of equipment will under

all normal circumstances not exceed the maximum laid dawn at agreed in writing by the

manufacturer

The Contractor shall be responsible for the inspection of all equipment and

parts before their inoorporation in the works to ensure that they comply with the

condrtlons of the oontract and that they are not defective In Ilny way as regards materiels

or workmanship should any such noncompllance or dafectsbe found during the

inspection the Contractor shall correct or cause to be corrected sich nonmiddotcompliance lnd

defects all at the Contraotors expense and to the satisfaction of the Engineer

14 Maintenance Period

All repairs and replacements required during the Maintenance Period shall

be carried out with despatch and an adequate supply of spares shall be availabad for this

purpose (See also clause 10)

15 ElectricitySupply

The Contractor shall carry out negotiations with the Electricity Supply

Authority concerned an behalf of the Department of Highways for permanent electricity

supply to the installation Bnd any costs associated with obtaining this supply shall be

included in the contract rates The Contractor f1ust ensure that the equipment supplied

will function correctly at the supply voltage and must allow for normal variations and

surges

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16 Igtefinitions

Unless speCifically defined herein definitions shall be as given In British Standard

892 1967 Glossary of Highway Engineering Terms and in British Standard

I Code of Practice CP 1004 Street Lighting both as amended at the time of Tender

a) Lantern A housing for one or more lamps comprising the body and

I any refractor refleotor diffuser or enclosure associated with the lamp

or lamps

bl Owooch The distance measured horizontally between the centre of a

fantern mounted on a bracket and the centre of the column or well

face

cJ QIflrhang The distance measured horizortally between the centre of aI fantam and the adjacent edge of the pavement

d) Mounting Height The vertical distance betWeen the centre of the

lantern and the surface of the pavement

e) Spacing The distance measured parallei to the centre ine of the road

between successive lanterns In a staggered arrangement this

distance is measured parallel to the centre line from the centre of a

lantern on one side of the road to the centre of the next lantern on

the opposite side

I) aaam That portion of the light output of the lantern contained by the

solid angle subtended at the effective light oentre of the lantern

containing the maximum intensity but no intensity less than 90 of

the maximum intensfty

g) Iumjoous Flux The light given by a light source of lantern or received

by a surface irrespective of the direction in which it is distributed

The unit of luminous Flux is the Lumen LM)

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hI j ower Hemispherical FIx or Downward FIIIX The luminous Flux

emitted by a lantem in all directions below the horizontal

il reek Intensity Ratio The ratio of the maximum Intensity to the mean

hemispherical intensity of Ihe light emitted below the horizontal

j) Mean Hemispherjoallnlensi1yen The downward flux divided by 628

(This is the average intensity in the lower hemisphere

k) Intensity Ralio The ratio of the actual intensity in any direction of a

lantem to the mean hemispherical intensity

I) luminous Inleosltyen The light giving power of a lantern in any particUlar

direction The unit of luminous intensity is the Candela (cd) Beam

Center lsocandela Curve Isocendela diagram Polar Curve

mJ Beam center A direction midway between the directions for ~hich

the intensity is 90 percent of the maximum in a vertical plane through

the IOOximum and on a conicsl surfaoe throught the maxlmum

n)lsQcandala curve A curve traced on an imaginary sphere with the

source at its center and joining all tha poillts corresponding to those

direotions in which the luminous intensity is the same or Ii plane

projection of this curve

0) ISQCodea diagram An array of isocandela ourves

p) Polar Curve Curve of light distribution using polar co-ordinates

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2 Materials and Equipment f

f 21 Lanterns ~

~ The supplier must submit the guaranteed letter of these BobY alluminailll r shall be non-corrosive light alloy metal colour if applied shall be stove enamelled finish in

gray or aluminum shadet Reflector if used shall be mirror type and made of smdized aluminum 1

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j sheet Gasket shall be applied on every par where insact is expected to enter into lemp

1 compartment including that at sllpfltter collar The gasket used shall be non-aging andt heat-resistant type transverse and longitude cross~iection drawing of the lIsminair ecaled

11 shall be furnished with the quotation

Refractor [enclosing bowl) if made of the transparent acrylic will not

produce less output due to colour changing within first 6 years of servloe

a) Lanterns she be of the cut-ltlff or thll samimiddotcut-off type as shown on

the Drawings or as specified in the Spacial Provisions Non-cutmiddotoff

lanterns shillI not be used

bJ Unless otherwis~ specified the mounting height shall be not less than

75 meters (or 250) nor more 1han 12 meters (or 400)(

c) Where there is no speed limit on the road or where thare is II speed

limit of more than 60 kilometers per hour the minimum clearance

between columns and the edge of the pavement shall normallv be

16 meters but where this is not reasonably attainable such as

1 bridge locations and cther rejtriotad areas the minimum olearance i i bull i may with the previous permission of the angineer be reduced 10 10~1

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WherB there is a speed limit of less than 60 kilometers per hour the

minimum otearance between columns and the edge of the pavement should be 16

meters but this may be reduoed to

050 meter for crossfaJis of not more than 1 in 40 towards the curb

OSO meter for crossfalls of between 1 in 40 and 1 in 24 towards the

ourb

075 meter for crcssfalls of more than 1 in 24 towards to ourb with the

previous permission of the Engineer

d) Each lantern should normally di rect two beams along the length of

the road rhepolar curves of the lenterns in both horizontal and

vertioal planes snould be smooth and free from any abrupt

variations so that the luminous intensity diminishes smoothly and

progressively from its maximum For centrally mounted lanterns the

beams should ba approximately axial for lanterns mounted at the

sides of tns roadway the maximum toe-in of the beam will be 160

Adequate but not excessiVE Ught should be dirlided towards tha ourbs

and outer edge of the road Wliere area illumination is required using

high mast righting these provisions she not necessarily apply

il) For out-off lanterns the beam should 00 in a direotion about 650 from

the downward vertical The peak Intensity ratio shall be between 20

bull and 40 the intensity ratio in the zone [JO to 3()O below a horizontal

plene through the lantern shali be between 03 and 20 An Intensity

ratio of 12 shall lie between elevations of 72deg imd 7Bofrom the

downwsrd vertical in the vertical plane parallel tomiddotthe lIJ(is of ths

roadway and the horizontal intensity ratio in the same plane shall be

not greater than 015

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f) In the case of semi-out-off lanterns the beam should lie in a direotion

about 750 from the downward vertical The peak intensity ratio shall

be between 18 and 40 The intensity ratio in the 00 to 300 zone

below a horizontal plane thrOJgh the lantern shall be between 03 and

17 An intensity ratio of 12 shall ie between elevations of 780 and

840 from the downward vertical in the vertical plane paralled to the

axis of the roadway and the horizontal intensity ra1io in the same

plana shall be not greater than 06 except that in the case of sodium

lamps the intensity ratio 01 12 shall lie Similarly between BOO and

860 and the horizontal intensity ratio in the same plane shall not

exceed 07

gl The siting of lanterns shall be in accordance with the following table

which gives minimum required illumination Particular care shall be

taken with the siting of lanterns on bends and surnmit vertical ourves

At junctions and roundabouts lantern spacing shall be designed so as

to give at least the minimum illumination required by the following

tables and also lanterns shan be spaced and sited where possible

so as to delineate the cour39 of the roadway plainly to road ussr

approaching from any normal direction without any possible mislending

impressions

The level of illuminetion provided as road junctions and roundabouts bull i

shall be at least as high as that on any of the approach roads and in

the case of roundabouts a minimum Jeve middotof illumination at any curb

Hne of 10 lUmens per square meter shall be provided

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Required minimum Average Horizontal lruminatlon

in lumens per Square Meter (Lumens per Square Footl

Central-Urban Sub-Urban Rural

Areas Areas Areas

High Grade MotorWays 215 (201 150 (14) 1075 (10)

At J~notions 215 (2Q) 215 (20) 150 (14) jgt Main Routes 215 (20) 130 112) 97 (09)

I Seo90dary Routes 130 112) 97 (09) 65 (06)

I Local Roads 97 (09) 65 (06) 21 (Q2bullbullI (Residentiaj

areas only)

The Contractor shalt certify that the design of the installation has been

done in accordanoe with American Standard Practice for Roadway lighting (D 121 shy

1~l pubished by the lIIumnating Engineering Society 345 East 47th Street New York

or in accordance with British Standard Gode of practice CP 1004 of 1963 Street lighting

Published by the British Standards Institution 2 Park Lane London WI except in so tar

8S these have baen varied by the provisions of this speoification or any special provisions

22 Wiring end Switching

The Wiring and switching supplied for control of lanterns (each device bull

controlling B group of lantern) shall be of a type approved by and agreed with thei

Electricity Supply Authority Unless otherwise specified photoelectrio relayswitching shall

be used

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23 Columns and Brackets

ltII Columns shall be of steei construction ai1d shail consist of tapered

round hollow shafts with anchor bases Each column shall be provided with a suitable

cable slot and a weatherproof service door fitted with a tamperproof lock All locks shall

be of the same pattern and six keys shall be provided for them

b) A non-hygroscopic mounting bord cqmposed of electrically insulating

material shall be fitted in an easily acoessibfe position inside the column and ehall be of

c suitable size to take all necessary electrical equipment Adjacent to this mounting bosrd

there shall be prollided on the inside of the column tWo stainless steel studs not less

than 4 centimeters long nor less than 8 millimeters diameter and compi~t8 with stainless

steel look nuts and washers for use as earthing connections

c) Brackets to provide the required Outreach shall be of sufficientlv strollfij ~

bull construction to support the lantern under all normal conditions without significant 1

movement and shall be provided with suitable fittingsto take thelantems When in

positioo bralt~ts shall be inclined upwards at an angla of approximately 1SO to the

horizonaIand shall be fixed to their supports by suitable welding fastenings or wall

C plates

dl Columns and brackets shall be strucrursl steel having the following

mechanical properties

bull Thiokness of sheet steel (min) 4mm

~ Ultimate TeruJlie Strength (min) 41 kgQ1m2 Imiddot

bull Yleld Point (min) 25kgmm2

- Elongation (min) 21

oj Straightness That part of the column above the ground shtll not deviate

from straightness by more than an amount calculatad at II rate of 21 mm per meter of

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24 High Mast Lighting

Mounting heights from 20 meters and more shail be High Mast

a) Columns carrying high mast lighting shall be designed to permit the

whole of the lantern carriage to be easily s6fely and quickly lowered to ground level for

maintenance works The columns shail bee designed in accordanoe with British Standard

449 or other internationally aocepted standard for design of structural steelwork in

buildings except that the temporary horizontal defleotion of the top of the column may to

up to 75 of the height above ground In calculating the tending moment at ground

level due to wind load it shall be assumed that the wind speed at B point ten meters

above ground level is 60 kjiometers per hour and the design of the column hall be such

that wind excited oscillations are damped as much as possible Adequate allowance shalf

be Ij1sde for the stresses produced by 6uoh oscllationslt Details shall be given of the

vertical and horizontal load Bnd the bending moment at the foundations

bl The base plate shall ba free from laminations and all dimensions of the

base plate shall be provided including details of the holding down belts A cable entry

hole of not less than 30 cen1imeters diameter shalf be prCNided centrally in each base

middot c plate and the bottom of lile maat shall pass through the base plate and be welded onC

both sides An altsmstiv9 construotion of equal strength may be accepted by the

Engineer but a butt weld on the base plale will not be accepted

Each holding down belt shall be tensioned to the design value and within

the maintenance period the bolts shall be checked and retightened 8S necesllsry after

Whioh the nuts shalf be repainted

oJ The columns shall be deli~ered to the site in the minimum practicable

number of lengths Any joints necessary shall be positioned as near the top of the

Qotumns as possible

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d) The lantern carriage shail support the designed number of lanterns

Vithiout significant sway or movement and shall be capable of supporting these lanterns

II cradle with two men for maintenance work The lantern carriage shall be protected

prevent damage to the painted surface of the columns rotation of the carriage during

6IgtIIIJ and lowering shall be prevented and correct location when raised shall be ensured

some positive means It sha be possible to remove the lantem carriage without

illwerirl1l the column

el The lantern carriage shall be raised and lowered by a self sustaining

capable of being operated either by hand or by a portable electrically operated tool

middotIt shall be possible to lock the winch in any position by a simple robust and easily

operated mechanism The worm gear shall have a ratio of at Ieast 201

f) The winch shall have removable handles and it shall be mounted within

the base compartment at a convenient Vcrking height The opening in ths column shall

be of sufficient size to allow proper operation and maintenance of the winch mechanism

A weatherprClOf lab1 shall be fixed in an obvious position wihtn the column base giving

a full list of allmiddot lubricating points on the winch and other mechanism and detail of

recommened lubricants Winches fixed inside the column shall bs provided with a

substantial cover to fully protect them failing dirt and dust

gl A sufficient number of turns of the hoisting cable shall be left on the

winch drum when the carriage is fully lowered to ensure that the cable anchorage on the

drum do~s not take the full load of the carriage at any time

hI the last 30 centimeters of travel to t~e fully raised position of the

carriage shall be by hand operation and for lhis purpose either a limit switch shall be

provided to cut off the power supply to the portable electric tool at the appropriate time

or else some form of indication shall be provided to indicate when the carriage is 30

centimeters from the fully raised position

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i The winch cable shall be of stranded stainless steel wires and shall have

sufficient capacity to carry safely the lantern carriage complete with lanterns and a cradle

with two men attached thereto Great oare shall be taken during installation to ensure

that the hoisting cables do not twist or kink and any set twist Of kink shall be sufficient

rflsson for the rejection of that cable

j) All parts of the raising and loWering mechanism which are inaccessible

after erectlon of the oolumns shall be adequately protected against moisture dirt and

corrosion Where neoessary pulleys shall be fitted with shields to prevent the winch

cable becoming displaced Pulleys for electrioal cables shaH be of sufficient dimameter

that the cablll will not be bent to a smaller radius then that permitted by loca relulations

or those of the British Institutiof of Electrical Engineers 14th Edition Where necessary

for continued tfOllbe free operation metal parts shall be of stainless steel or other

approved non-corrodible material

kl When pewsr tool operation is used a suitable power outlet shall be

providad and the operalor shall be adequately safeguarded against any electrical shocks

rhe power tool shall preferably be designed to work on a reduced voltagee end in this

OBse a suitable approved type of translormar shall be provided The power too shall be

designed so that continuOlls operation will cause no harmful effects on either the winch

Of the tool and in the event of power failure the winch shall be self locking Conversion

from power to hand operation and vice versa shall be quick and easy and shall not require

spacial tools Full imOfmallon on tha type of power tool proposed shall be given with the

lender

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25 Protection Against Corrosion

Unless otherwise spceified columns bracket arms and brackets shall be

protected against corrosiOil eithsr by painting or galvanizing as follows

261 Painting

sl Cou~ns and masts shall be treated internalty with hot asphalt under

high pressure so as to givB a complete arid unbroken asphaltic coVering or other approved

anti-corrosion treatment shalt be applied to give at least equally good protection Bas63

shall be similarly treated up to a level of 25 centimeters above ground ievel

b) Before delivery to the site columns masts steelltracKets and external

fitting shall have all external welds ground down ilnd all external surfaces cleaned by shot bull

blasting or other approved method to a whitsmetal finish free of all signs of rust

Immediately folJowil1g t~is treatment the items ahall be painted with two coats of tropical

red lead undercoat followed by two coats of aluminium paint or they shall be treated in a

similar and hot tass affective manner aoceptable to the Enginesr to present subsequent

oorrosion After Grection ali imperfections and damage shall be made good to the

Engineers satisfaction and the items shall be given a final coat of all aluminium paint

262 Galvanizingmiddot

a) Before delivery to the site columns masts steel brackets and extemal

fittings shall have all extemal welds ground down Poles and other ferous materials shall

be galvanized both inside and outside by hot dipped in accordance with ASTM A 625-76

Weight of zinc coating shall not be less han 550 gram per square meter

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b) Base of columns both inside and outside shali be coated with bituminous paint

up 10 a level o 25 centimeters above the base plate

3 Construction Methods

31 Excavation and Reinstatement

Excavation for cable or conduit laying or for foundations and reinstatement

shall be Darned out in accordance with thaprovisions of Section 25 (Sub-Clause 2632)

of 1hampS6 specifioations Reinstatement shall be suoh that the surface is restored to at

east its original standard

32 Concrete Work

All necessary foundations and footings or other concrete work shall be

carried out in acoordance with Sections 61 (sub-Clause 5112) and 02 of these

specifications Unless otherwise specified on the Drawings or in the Speoial Provisions

ooncrete shall be olass 8 Foundations shail be placed in one operation except that the

top 5 oentimetars may be placed after the superimposed structure is In position The

el(posed portions of foundations shall be formed to present a neat and tidy appearance

and sloped to shed water aV)lay from the structure supported Where existing

obs1ructions prevent the construction 01 foundations as shown on the plans then an

effective alternative may be provided subject to the prior approval of the Engineer

amp Ministry of National Development Department of Highways Specification For Highway

Construction 1970 Bangkok Thailand

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33 Conduits fittings and boxes

Copduits fittings and boxes shall be providsd and installed in accordance

with the provisions of Section 511 of these Speoifications except that chemically stable

tough plastic conduits fittings and boxes aocording to samples previously approved by

the Engineer will be permitted providing thet they do not soften when exposed to high

ambient temperature

The contractor may use alarger size of conduit than that specified at no

extra charge if he wishes but in this case the entire run shall be of the same size No

reducing touplings will be permitted

When metal conduits ara used cuts shall be made square amp11d true and all

couplings shell Ie screwed up until the ends of the conduits are brought together in order

to proVide a good electrical contact throughout The threads on all ferrous metal oonduits

bullsh8l1 be painted with rusT preventing paint before couplings are made up Where themiddot

coating on ferrous metal conduit has been dam~ged In handHng such damaged places

shall be painted with rust prevanting paint before installation

All conduit ends shall be threaded and capped until wiring is started When

caps are removed the threaded ends shall be provided with approved conduit bushings

Conduits shall be laid to a depth of not less than 50 centimeters below

pEIVed footwalks and medians and not less the 75 centimeters below the roadway

surface The location of all conduits at curb lines shall be marked by means of a Y at

laaat 10 centimeters high incised in the face of the curb directly above the conduit

Conduit terminating in iii standards cabine1s or pedestals shaH extend at least 5

C9Iltimeters vertically above the bottom of the box Such conduit shall be sloped towards

the top of the box to facilitate pulling Conduit entering the bottom of the box shall enter

in the direction of the run

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34 Pull boxes or Junction Boxes

Pull boxes shall be installed as shown on the plans and in any case at not

more than 00 meters intellals The contractormiddotmay install additional pull boxes without

extra charge jf he wishes Pull bo)(es shall be of reinforced concrete not less than 10

centimeters thick and may be of approved pre-cast deSign Reinforced concrete covers

acoured by two recessed brass bolts shaff be used on faatwalks the covers baing

inscribed Street Ughting on the outside Under the roadway covers shall be of steal or

oast iron inscribed as specified middotabove andlaid in II suitable concrete footing to withstand

trecffic loads Metal covers shall be effectivalr earthed to an earthing rod inside the box

Tops of puUboxes ~Ilan beeffectivoaly level with the slrfOunoing paved areas whether

footwslk or roadway but in unpaved areas the tOpl of pull boxes shall be buried 30

oentimeters below groul1d level The bottom of pull boxes shall be bedded in sand and

cement or crushed rock Permanent makers shall be provided and erected

toshow the position of all pull boxes

35 Tasting

A funotional test shari be made on completion of the work n order to

demonStrate thet every part of the equipment and installation fUllctionS as intended and

specJfled This test shall consist of not less ~a~ five nights continuous and satisfaatOlY

operation If any defects or unsatisfactory operation are revealed this condition shalf be

oorrected imd tne test continoued until the required five nights of satisfaotory opera~ion

have been performed

Prior to the functional test tlie contractor shaff carry out thefollowing

tests to the entire satisfaction of the Engineer

1) Each circuit shall be iested for oontinuity

2) Each circuit shall be tested for cething

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3) A m~gger test shall be made between eaoh cirouit and eart) The

Insulation fesistance shall be shown to be at least that specified within the relevant

codes

4) The distribution horizontal illumination valve of specified spacing in eaoh

code item in rale 6flux measured between two iuminair as avery two meters along

longitudinal and transverse road way line are essentially measured to show maxmean

min illuminati and uniformity ratios

Uniformity ratio minimum illumination average illumination

= not less than 126

and maximum illumination

minimum illumination

not more than 61

5) Rainproof Test

The lantern under test shall be mounted in its normal orientation on en

adjustable sUpPOrt as shown in fig 1 so that the fitting is near the center of the arc

desoribed by 1he oscillating tuba

After being switched on for one hour the lantern shllil be subjected to II

spray of water at a temperature not exceeding 200 C and ilt e pressure of approximately

67 Ibsin2 104 kgscm2i the tube being oscillated so as to describe an angle of SO

degrees from the vertical and in both directions from it This treatment shall be continLllld

for 20 nilnutes the fitting being switcher off after 10 minutes

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18

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At tha end of this test there shall be to damage to the lamp or enclosure

and no visible evidence of water having aocumulated it the fitting

04 rnm dlo hDln

Fig Apparatus for rainprooftest

On the completion of testing the contractor shall supply to the engineer

three copies of as buill plans and circuitdiagrams whicn shall clearly indicated any

modifications which have been made to the original design

4 Measurement

41 Unless a Bill of quantities is provided thjs item will not be measured and payment

shall be made one lumpsum basic

42 When a Bill Of Quantities is provided measurements shall made on the items detailed

In the Sill of quantities completed accepted and neesured in place The unit of

measurement for each item shall be the unit of measurement shown in the Bill of

Ouentitias

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5 Payment

51 The lump sum payment for the street lighting installation shall be full compensation

for furnishing ell materials labour equipment tools supervisiorl testing and incidentals

neossary to complete the work inoluding any necessary backfill foundations restoration

of footwalk roadway curbing and appurtenances damaged or destroyed during

construction The payment shall also cover the cost of design where this Is called for

The ILlmp sum paymEmt shall be deemed to include full compensation for

all additional materials and work not shown on Ihe Drawings or specified which are

nesessary to complete the installation

62 The work measured as provided in 42 shall be paid at Ihe contraot unit price for eacl1

item such price and payment constituting flln compensation for aU materials labour

equipment tools and incidentals nseded to complete the work All materials Bnd work

necessaJY for satisfactory completion of the installation which are not specifically

mentioned in the Bilt of quantities shall be deemed to be included in the items shown

corw~ors 6 Information to be supplied by bidtfelS

61 catalogs at electrioal components lanterns ballast etc

62 Plans and circuit diagrams ground rod connection diagram

S3 Photometric data

631 Utilisation Curve

632 Isoc8ndala diagram bull

633 Horizon~81 isofootcandle diagram

634 Polar light distribution curvs

64 Cataisl of columns BraCKets Base Plates concrete foundations

20

7 Other details of steel columms not mentioned above should comply with British

Standard 1840 1960 The decision shall be made by the Department

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112 2 Vli1lfliJll1i11llllJlhW1l1ul1J~fIlJlll1ill~J~lt 1Mr)~~11JLl 2l1lt1

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bull Na 86W 108 Watt

135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

bull 1OOOW 1043 Watt

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CONTENTS

1 General

11 Description

12 Responsibility for Design and Materials

13 Compliance with Manufactures Specifications

14 Maintenance Period

15 Elootricity Supply

16 Definitions

2 Materiels lno Equipment

21 lanterns

22 Wiring and Switching I

23 Columns and Brackets

24 High Mast Lighting

25 Protection Against Corrosion

251 PlIiminll

252 Galvanizing

3 ConstrllCtian Methods

31 Excavation and Reinstatement

32 Concrete Work

33 Conduits Fittings and BoxesI I 34 Pull boxes or Junction Boxes

35 Testing

4 Meas4rment

O Payment

6 Information to be Supplied by Bidder

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7 Other details 2Q

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9 PI1JJ fua~l iJlJ1liJ~~h h-16tlI1i11f1JJ)11 29

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I GENERAL SPECIFICATION FOR STREET LIGHTING I i

I 1 General

11 Description

This work shall consist of the supply of all lanterns complete brackets

columns and other supporting devices bases cables switchgear and all necessary

ancillary equipment together with the transportation storage assembly erection

connection and testing at the same in order to supply 2 complete street lighting system

in accordanqe with the details shown on the plans and as specified herein and in the

Special Provisions if any Design of the system shall be included

middot12 Responsibifity formiddotDesign arid Materialsmiddot

The Contractor shall be solely responsible for the adequate design and tl-

co-ordinated functioning of all goods and construction furnished under this contract All

the component parts shall be designed so as to ensJre their proper co-ordinated

functionin and operation All equipment shall be of the makers standard models and

shall include all recent improvements in design and materials All materials used in

manufacture and construotion shall be of high quality and fully in accordance with the

beat modern practice

The equipment offered and the work done shall be suitable for continue

trouble-free operation under adverse climatic conditions of heavy rain high humidity ood ~

intense sunlight The equipment must be able to withstand over long periods ambient c

tempratyr9s varying from a normal of 4deg C to a maximum of 500 C i_

All materials used in themanufacture and construction shall be frBe fron

defects and shall be made having proper regard for safety and in strict accordance wit

all the relevant requirements and regulations of the Electricity Supply Authority

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13 Compliance with Manufactures Specifications

Tha Ccntractor shall ensure that the equipment and parts used will be

entirely suitable for t~evvork to be performed and that they will be manufaotured to

proper clearances and fit He shall further ensure that the loading of equipment will under

all normal circumstances not exceed the maximum laid dawn at agreed in writing by the

manufacturer

The Contractor shall be responsible for the inspection of all equipment and

parts before their inoorporation in the works to ensure that they comply with the

condrtlons of the oontract and that they are not defective In Ilny way as regards materiels

or workmanship should any such noncompllance or dafectsbe found during the

inspection the Contractor shall correct or cause to be corrected sich nonmiddotcompliance lnd

defects all at the Contraotors expense and to the satisfaction of the Engineer

14 Maintenance Period

All repairs and replacements required during the Maintenance Period shall

be carried out with despatch and an adequate supply of spares shall be availabad for this

purpose (See also clause 10)

15 ElectricitySupply

The Contractor shall carry out negotiations with the Electricity Supply

Authority concerned an behalf of the Department of Highways for permanent electricity

supply to the installation Bnd any costs associated with obtaining this supply shall be

included in the contract rates The Contractor f1ust ensure that the equipment supplied

will function correctly at the supply voltage and must allow for normal variations and

surges

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16 Igtefinitions

Unless speCifically defined herein definitions shall be as given In British Standard

892 1967 Glossary of Highway Engineering Terms and in British Standard

I Code of Practice CP 1004 Street Lighting both as amended at the time of Tender

a) Lantern A housing for one or more lamps comprising the body and

I any refractor refleotor diffuser or enclosure associated with the lamp

or lamps

bl Owooch The distance measured horizontally between the centre of a

fantern mounted on a bracket and the centre of the column or well

face

cJ QIflrhang The distance measured horizortally between the centre of aI fantam and the adjacent edge of the pavement

d) Mounting Height The vertical distance betWeen the centre of the

lantern and the surface of the pavement

e) Spacing The distance measured parallei to the centre ine of the road

between successive lanterns In a staggered arrangement this

distance is measured parallel to the centre line from the centre of a

lantern on one side of the road to the centre of the next lantern on

the opposite side

I) aaam That portion of the light output of the lantern contained by the

solid angle subtended at the effective light oentre of the lantern

containing the maximum intensity but no intensity less than 90 of

the maximum intensfty

g) Iumjoous Flux The light given by a light source of lantern or received

by a surface irrespective of the direction in which it is distributed

The unit of luminous Flux is the Lumen LM)

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hI j ower Hemispherical FIx or Downward FIIIX The luminous Flux

emitted by a lantem in all directions below the horizontal

il reek Intensity Ratio The ratio of the maximum Intensity to the mean

hemispherical intensity of Ihe light emitted below the horizontal

j) Mean Hemispherjoallnlensi1yen The downward flux divided by 628

(This is the average intensity in the lower hemisphere

k) Intensity Ralio The ratio of the actual intensity in any direction of a

lantem to the mean hemispherical intensity

I) luminous Inleosltyen The light giving power of a lantern in any particUlar

direction The unit of luminous intensity is the Candela (cd) Beam

Center lsocandela Curve Isocendela diagram Polar Curve

mJ Beam center A direction midway between the directions for ~hich

the intensity is 90 percent of the maximum in a vertical plane through

the IOOximum and on a conicsl surfaoe throught the maxlmum

n)lsQcandala curve A curve traced on an imaginary sphere with the

source at its center and joining all tha poillts corresponding to those

direotions in which the luminous intensity is the same or Ii plane

projection of this curve

0) ISQCodea diagram An array of isocandela ourves

p) Polar Curve Curve of light distribution using polar co-ordinates

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2 Materials and Equipment f

f 21 Lanterns ~

~ The supplier must submit the guaranteed letter of these BobY alluminailll r shall be non-corrosive light alloy metal colour if applied shall be stove enamelled finish in

gray or aluminum shadet Reflector if used shall be mirror type and made of smdized aluminum 1

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j sheet Gasket shall be applied on every par where insact is expected to enter into lemp

1 compartment including that at sllpfltter collar The gasket used shall be non-aging andt heat-resistant type transverse and longitude cross~iection drawing of the lIsminair ecaled

11 shall be furnished with the quotation

Refractor [enclosing bowl) if made of the transparent acrylic will not

produce less output due to colour changing within first 6 years of servloe

a) Lanterns she be of the cut-ltlff or thll samimiddotcut-off type as shown on

the Drawings or as specified in the Spacial Provisions Non-cutmiddotoff

lanterns shillI not be used

bJ Unless otherwis~ specified the mounting height shall be not less than

75 meters (or 250) nor more 1han 12 meters (or 400)(

c) Where there is no speed limit on the road or where thare is II speed

limit of more than 60 kilometers per hour the minimum clearance

between columns and the edge of the pavement shall normallv be

16 meters but where this is not reasonably attainable such as

1 bridge locations and cther rejtriotad areas the minimum olearance i i bull i may with the previous permission of the angineer be reduced 10 10~1

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WherB there is a speed limit of less than 60 kilometers per hour the

minimum otearance between columns and the edge of the pavement should be 16

meters but this may be reduoed to

050 meter for crossfaJis of not more than 1 in 40 towards the curb

OSO meter for crossfalls of between 1 in 40 and 1 in 24 towards the

ourb

075 meter for crcssfalls of more than 1 in 24 towards to ourb with the

previous permission of the Engineer

d) Each lantern should normally di rect two beams along the length of

the road rhepolar curves of the lenterns in both horizontal and

vertioal planes snould be smooth and free from any abrupt

variations so that the luminous intensity diminishes smoothly and

progressively from its maximum For centrally mounted lanterns the

beams should ba approximately axial for lanterns mounted at the

sides of tns roadway the maximum toe-in of the beam will be 160

Adequate but not excessiVE Ught should be dirlided towards tha ourbs

and outer edge of the road Wliere area illumination is required using

high mast righting these provisions she not necessarily apply

il) For out-off lanterns the beam should 00 in a direotion about 650 from

the downward vertical The peak Intensity ratio shall be between 20

bull and 40 the intensity ratio in the zone [JO to 3()O below a horizontal

plene through the lantern shali be between 03 and 20 An Intensity

ratio of 12 shall lie between elevations of 72deg imd 7Bofrom the

downwsrd vertical in the vertical plane parallel tomiddotthe lIJ(is of ths

roadway and the horizontal intensity ratio in the same plane shall be

not greater than 015

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f) In the case of semi-out-off lanterns the beam should lie in a direotion

about 750 from the downward vertical The peak intensity ratio shall

be between 18 and 40 The intensity ratio in the 00 to 300 zone

below a horizontal plane thrOJgh the lantern shall be between 03 and

17 An intensity ratio of 12 shall ie between elevations of 780 and

840 from the downward vertical in the vertical plane paralled to the

axis of the roadway and the horizontal intensity ra1io in the same

plana shall be not greater than 06 except that in the case of sodium

lamps the intensity ratio 01 12 shall lie Similarly between BOO and

860 and the horizontal intensity ratio in the same plane shall not

exceed 07

gl The siting of lanterns shall be in accordance with the following table

which gives minimum required illumination Particular care shall be

taken with the siting of lanterns on bends and surnmit vertical ourves

At junctions and roundabouts lantern spacing shall be designed so as

to give at least the minimum illumination required by the following

tables and also lanterns shan be spaced and sited where possible

so as to delineate the cour39 of the roadway plainly to road ussr

approaching from any normal direction without any possible mislending

impressions

The level of illuminetion provided as road junctions and roundabouts bull i

shall be at least as high as that on any of the approach roads and in

the case of roundabouts a minimum Jeve middotof illumination at any curb

Hne of 10 lUmens per square meter shall be provided

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Required minimum Average Horizontal lruminatlon

in lumens per Square Meter (Lumens per Square Footl

Central-Urban Sub-Urban Rural

Areas Areas Areas

High Grade MotorWays 215 (201 150 (14) 1075 (10)

At J~notions 215 (2Q) 215 (20) 150 (14) jgt Main Routes 215 (20) 130 112) 97 (09)

I Seo90dary Routes 130 112) 97 (09) 65 (06)

I Local Roads 97 (09) 65 (06) 21 (Q2bullbullI (Residentiaj

areas only)

The Contractor shalt certify that the design of the installation has been

done in accordanoe with American Standard Practice for Roadway lighting (D 121 shy

1~l pubished by the lIIumnating Engineering Society 345 East 47th Street New York

or in accordance with British Standard Gode of practice CP 1004 of 1963 Street lighting

Published by the British Standards Institution 2 Park Lane London WI except in so tar

8S these have baen varied by the provisions of this speoification or any special provisions

22 Wiring end Switching

The Wiring and switching supplied for control of lanterns (each device bull

controlling B group of lantern) shall be of a type approved by and agreed with thei

Electricity Supply Authority Unless otherwise specified photoelectrio relayswitching shall

be used

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23 Columns and Brackets

ltII Columns shall be of steei construction ai1d shail consist of tapered

round hollow shafts with anchor bases Each column shall be provided with a suitable

cable slot and a weatherproof service door fitted with a tamperproof lock All locks shall

be of the same pattern and six keys shall be provided for them

b) A non-hygroscopic mounting bord cqmposed of electrically insulating

material shall be fitted in an easily acoessibfe position inside the column and ehall be of

c suitable size to take all necessary electrical equipment Adjacent to this mounting bosrd

there shall be prollided on the inside of the column tWo stainless steel studs not less

than 4 centimeters long nor less than 8 millimeters diameter and compi~t8 with stainless

steel look nuts and washers for use as earthing connections

c) Brackets to provide the required Outreach shall be of sufficientlv strollfij ~

bull construction to support the lantern under all normal conditions without significant 1

movement and shall be provided with suitable fittingsto take thelantems When in

positioo bralt~ts shall be inclined upwards at an angla of approximately 1SO to the

horizonaIand shall be fixed to their supports by suitable welding fastenings or wall

C plates

dl Columns and brackets shall be strucrursl steel having the following

mechanical properties

bull Thiokness of sheet steel (min) 4mm

~ Ultimate TeruJlie Strength (min) 41 kgQ1m2 Imiddot

bull Yleld Point (min) 25kgmm2

- Elongation (min) 21

oj Straightness That part of the column above the ground shtll not deviate

from straightness by more than an amount calculatad at II rate of 21 mm per meter of

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24 High Mast Lighting

Mounting heights from 20 meters and more shail be High Mast

a) Columns carrying high mast lighting shall be designed to permit the

whole of the lantern carriage to be easily s6fely and quickly lowered to ground level for

maintenance works The columns shail bee designed in accordanoe with British Standard

449 or other internationally aocepted standard for design of structural steelwork in

buildings except that the temporary horizontal defleotion of the top of the column may to

up to 75 of the height above ground In calculating the tending moment at ground

level due to wind load it shall be assumed that the wind speed at B point ten meters

above ground level is 60 kjiometers per hour and the design of the column hall be such

that wind excited oscillations are damped as much as possible Adequate allowance shalf

be Ij1sde for the stresses produced by 6uoh oscllationslt Details shall be given of the

vertical and horizontal load Bnd the bending moment at the foundations

bl The base plate shall ba free from laminations and all dimensions of the

base plate shall be provided including details of the holding down belts A cable entry

hole of not less than 30 cen1imeters diameter shalf be prCNided centrally in each base

middot c plate and the bottom of lile maat shall pass through the base plate and be welded onC

both sides An altsmstiv9 construotion of equal strength may be accepted by the

Engineer but a butt weld on the base plale will not be accepted

Each holding down belt shall be tensioned to the design value and within

the maintenance period the bolts shall be checked and retightened 8S necesllsry after

Whioh the nuts shalf be repainted

oJ The columns shall be deli~ered to the site in the minimum practicable

number of lengths Any joints necessary shall be positioned as near the top of the

Qotumns as possible

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d) The lantern carriage shail support the designed number of lanterns

Vithiout significant sway or movement and shall be capable of supporting these lanterns

II cradle with two men for maintenance work The lantern carriage shall be protected

prevent damage to the painted surface of the columns rotation of the carriage during

6IgtIIIJ and lowering shall be prevented and correct location when raised shall be ensured

some positive means It sha be possible to remove the lantem carriage without

illwerirl1l the column

el The lantern carriage shall be raised and lowered by a self sustaining

capable of being operated either by hand or by a portable electrically operated tool

middotIt shall be possible to lock the winch in any position by a simple robust and easily

operated mechanism The worm gear shall have a ratio of at Ieast 201

f) The winch shall have removable handles and it shall be mounted within

the base compartment at a convenient Vcrking height The opening in ths column shall

be of sufficient size to allow proper operation and maintenance of the winch mechanism

A weatherprClOf lab1 shall be fixed in an obvious position wihtn the column base giving

a full list of allmiddot lubricating points on the winch and other mechanism and detail of

recommened lubricants Winches fixed inside the column shall bs provided with a

substantial cover to fully protect them failing dirt and dust

gl A sufficient number of turns of the hoisting cable shall be left on the

winch drum when the carriage is fully lowered to ensure that the cable anchorage on the

drum do~s not take the full load of the carriage at any time

hI the last 30 centimeters of travel to t~e fully raised position of the

carriage shall be by hand operation and for lhis purpose either a limit switch shall be

provided to cut off the power supply to the portable electric tool at the appropriate time

or else some form of indication shall be provided to indicate when the carriage is 30

centimeters from the fully raised position

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i The winch cable shall be of stranded stainless steel wires and shall have

sufficient capacity to carry safely the lantern carriage complete with lanterns and a cradle

with two men attached thereto Great oare shall be taken during installation to ensure

that the hoisting cables do not twist or kink and any set twist Of kink shall be sufficient

rflsson for the rejection of that cable

j) All parts of the raising and loWering mechanism which are inaccessible

after erectlon of the oolumns shall be adequately protected against moisture dirt and

corrosion Where neoessary pulleys shall be fitted with shields to prevent the winch

cable becoming displaced Pulleys for electrioal cables shaH be of sufficient dimameter

that the cablll will not be bent to a smaller radius then that permitted by loca relulations

or those of the British Institutiof of Electrical Engineers 14th Edition Where necessary

for continued tfOllbe free operation metal parts shall be of stainless steel or other

approved non-corrodible material

kl When pewsr tool operation is used a suitable power outlet shall be

providad and the operalor shall be adequately safeguarded against any electrical shocks

rhe power tool shall preferably be designed to work on a reduced voltagee end in this

OBse a suitable approved type of translormar shall be provided The power too shall be

designed so that continuOlls operation will cause no harmful effects on either the winch

Of the tool and in the event of power failure the winch shall be self locking Conversion

from power to hand operation and vice versa shall be quick and easy and shall not require

spacial tools Full imOfmallon on tha type of power tool proposed shall be given with the

lender

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25 Protection Against Corrosion

Unless otherwise spceified columns bracket arms and brackets shall be

protected against corrosiOil eithsr by painting or galvanizing as follows

261 Painting

sl Cou~ns and masts shall be treated internalty with hot asphalt under

high pressure so as to givB a complete arid unbroken asphaltic coVering or other approved

anti-corrosion treatment shalt be applied to give at least equally good protection Bas63

shall be similarly treated up to a level of 25 centimeters above ground ievel

b) Before delivery to the site columns masts steelltracKets and external

fitting shall have all external welds ground down ilnd all external surfaces cleaned by shot bull

blasting or other approved method to a whitsmetal finish free of all signs of rust

Immediately folJowil1g t~is treatment the items ahall be painted with two coats of tropical

red lead undercoat followed by two coats of aluminium paint or they shall be treated in a

similar and hot tass affective manner aoceptable to the Enginesr to present subsequent

oorrosion After Grection ali imperfections and damage shall be made good to the

Engineers satisfaction and the items shall be given a final coat of all aluminium paint

262 Galvanizingmiddot

a) Before delivery to the site columns masts steel brackets and extemal

fittings shall have all extemal welds ground down Poles and other ferous materials shall

be galvanized both inside and outside by hot dipped in accordance with ASTM A 625-76

Weight of zinc coating shall not be less han 550 gram per square meter

14

b) Base of columns both inside and outside shali be coated with bituminous paint

up 10 a level o 25 centimeters above the base plate

3 Construction Methods

31 Excavation and Reinstatement

Excavation for cable or conduit laying or for foundations and reinstatement

shall be Darned out in accordance with thaprovisions of Section 25 (Sub-Clause 2632)

of 1hampS6 specifioations Reinstatement shall be suoh that the surface is restored to at

east its original standard

32 Concrete Work

All necessary foundations and footings or other concrete work shall be

carried out in acoordance with Sections 61 (sub-Clause 5112) and 02 of these

specifications Unless otherwise specified on the Drawings or in the Speoial Provisions

ooncrete shall be olass 8 Foundations shail be placed in one operation except that the

top 5 oentimetars may be placed after the superimposed structure is In position The

el(posed portions of foundations shall be formed to present a neat and tidy appearance

and sloped to shed water aV)lay from the structure supported Where existing

obs1ructions prevent the construction 01 foundations as shown on the plans then an

effective alternative may be provided subject to the prior approval of the Engineer

amp Ministry of National Development Department of Highways Specification For Highway

Construction 1970 Bangkok Thailand

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15

33 Conduits fittings and boxes

Copduits fittings and boxes shall be providsd and installed in accordance

with the provisions of Section 511 of these Speoifications except that chemically stable

tough plastic conduits fittings and boxes aocording to samples previously approved by

the Engineer will be permitted providing thet they do not soften when exposed to high

ambient temperature

The contractor may use alarger size of conduit than that specified at no

extra charge if he wishes but in this case the entire run shall be of the same size No

reducing touplings will be permitted

When metal conduits ara used cuts shall be made square amp11d true and all

couplings shell Ie screwed up until the ends of the conduits are brought together in order

to proVide a good electrical contact throughout The threads on all ferrous metal oonduits

bullsh8l1 be painted with rusT preventing paint before couplings are made up Where themiddot

coating on ferrous metal conduit has been dam~ged In handHng such damaged places

shall be painted with rust prevanting paint before installation

All conduit ends shall be threaded and capped until wiring is started When

caps are removed the threaded ends shall be provided with approved conduit bushings

Conduits shall be laid to a depth of not less than 50 centimeters below

pEIVed footwalks and medians and not less the 75 centimeters below the roadway

surface The location of all conduits at curb lines shall be marked by means of a Y at

laaat 10 centimeters high incised in the face of the curb directly above the conduit

Conduit terminating in iii standards cabine1s or pedestals shaH extend at least 5

C9Iltimeters vertically above the bottom of the box Such conduit shall be sloped towards

the top of the box to facilitate pulling Conduit entering the bottom of the box shall enter

in the direction of the run

16

34 Pull boxes or Junction Boxes

Pull boxes shall be installed as shown on the plans and in any case at not

more than 00 meters intellals The contractormiddotmay install additional pull boxes without

extra charge jf he wishes Pull bo)(es shall be of reinforced concrete not less than 10

centimeters thick and may be of approved pre-cast deSign Reinforced concrete covers

acoured by two recessed brass bolts shaff be used on faatwalks the covers baing

inscribed Street Ughting on the outside Under the roadway covers shall be of steal or

oast iron inscribed as specified middotabove andlaid in II suitable concrete footing to withstand

trecffic loads Metal covers shall be effectivalr earthed to an earthing rod inside the box

Tops of puUboxes ~Ilan beeffectivoaly level with the slrfOunoing paved areas whether

footwslk or roadway but in unpaved areas the tOpl of pull boxes shall be buried 30

oentimeters below groul1d level The bottom of pull boxes shall be bedded in sand and

cement or crushed rock Permanent makers shall be provided and erected

toshow the position of all pull boxes

35 Tasting

A funotional test shari be made on completion of the work n order to

demonStrate thet every part of the equipment and installation fUllctionS as intended and

specJfled This test shall consist of not less ~a~ five nights continuous and satisfaatOlY

operation If any defects or unsatisfactory operation are revealed this condition shalf be

oorrected imd tne test continoued until the required five nights of satisfaotory opera~ion

have been performed

Prior to the functional test tlie contractor shaff carry out thefollowing

tests to the entire satisfaction of the Engineer

1) Each circuit shall be iested for oontinuity

2) Each circuit shall be tested for cething

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17

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3) A m~gger test shall be made between eaoh cirouit and eart) The

Insulation fesistance shall be shown to be at least that specified within the relevant

codes

4) The distribution horizontal illumination valve of specified spacing in eaoh

code item in rale 6flux measured between two iuminair as avery two meters along

longitudinal and transverse road way line are essentially measured to show maxmean

min illuminati and uniformity ratios

Uniformity ratio minimum illumination average illumination

= not less than 126

and maximum illumination

minimum illumination

not more than 61

5) Rainproof Test

The lantern under test shall be mounted in its normal orientation on en

adjustable sUpPOrt as shown in fig 1 so that the fitting is near the center of the arc

desoribed by 1he oscillating tuba

After being switched on for one hour the lantern shllil be subjected to II

spray of water at a temperature not exceeding 200 C and ilt e pressure of approximately

67 Ibsin2 104 kgscm2i the tube being oscillated so as to describe an angle of SO

degrees from the vertical and in both directions from it This treatment shall be continLllld

for 20 nilnutes the fitting being switcher off after 10 minutes

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18

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At tha end of this test there shall be to damage to the lamp or enclosure

and no visible evidence of water having aocumulated it the fitting

04 rnm dlo hDln

Fig Apparatus for rainprooftest

On the completion of testing the contractor shall supply to the engineer

three copies of as buill plans and circuitdiagrams whicn shall clearly indicated any

modifications which have been made to the original design

4 Measurement

41 Unless a Bill of quantities is provided thjs item will not be measured and payment

shall be made one lumpsum basic

42 When a Bill Of Quantities is provided measurements shall made on the items detailed

In the Sill of quantities completed accepted and neesured in place The unit of

measurement for each item shall be the unit of measurement shown in the Bill of

Ouentitias

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5 Payment

51 The lump sum payment for the street lighting installation shall be full compensation

for furnishing ell materials labour equipment tools supervisiorl testing and incidentals

neossary to complete the work inoluding any necessary backfill foundations restoration

of footwalk roadway curbing and appurtenances damaged or destroyed during

construction The payment shall also cover the cost of design where this Is called for

The ILlmp sum paymEmt shall be deemed to include full compensation for

all additional materials and work not shown on Ihe Drawings or specified which are

nesessary to complete the installation

62 The work measured as provided in 42 shall be paid at Ihe contraot unit price for eacl1

item such price and payment constituting flln compensation for aU materials labour

equipment tools and incidentals nseded to complete the work All materials Bnd work

necessaJY for satisfactory completion of the installation which are not specifically

mentioned in the Bilt of quantities shall be deemed to be included in the items shown

corw~ors 6 Information to be supplied by bidtfelS

61 catalogs at electrioal components lanterns ballast etc

62 Plans and circuit diagrams ground rod connection diagram

S3 Photometric data

631 Utilisation Curve

632 Isoc8ndala diagram bull

633 Horizon~81 isofootcandle diagram

634 Polar light distribution curvs

64 Cataisl of columns BraCKets Base Plates concrete foundations

20

7 Other details of steel columms not mentioned above should comply with British

Standard 1840 1960 The decision shall be made by the Department

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135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

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125W 130 Watt

250W 266 Watt

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CONTENTS

1 General

11 Description

12 Responsibility for Design and Materials

13 Compliance with Manufactures Specifications

14 Maintenance Period

15 Elootricity Supply

16 Definitions

2 Materiels lno Equipment

21 lanterns

22 Wiring and Switching I

23 Columns and Brackets

24 High Mast Lighting

25 Protection Against Corrosion

251 PlIiminll

252 Galvanizing

3 ConstrllCtian Methods

31 Excavation and Reinstatement

32 Concrete Work

33 Conduits Fittings and BoxesI I 34 Pull boxes or Junction Boxes

35 Testing

4 Meas4rment

O Payment

6 Information to be Supplied by Bidder

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7 Other details 2Q

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I GENERAL SPECIFICATION FOR STREET LIGHTING I i

I 1 General

11 Description

This work shall consist of the supply of all lanterns complete brackets

columns and other supporting devices bases cables switchgear and all necessary

ancillary equipment together with the transportation storage assembly erection

connection and testing at the same in order to supply 2 complete street lighting system

in accordanqe with the details shown on the plans and as specified herein and in the

Special Provisions if any Design of the system shall be included

middot12 Responsibifity formiddotDesign arid Materialsmiddot

The Contractor shall be solely responsible for the adequate design and tl-

co-ordinated functioning of all goods and construction furnished under this contract All

the component parts shall be designed so as to ensJre their proper co-ordinated

functionin and operation All equipment shall be of the makers standard models and

shall include all recent improvements in design and materials All materials used in

manufacture and construotion shall be of high quality and fully in accordance with the

beat modern practice

The equipment offered and the work done shall be suitable for continue

trouble-free operation under adverse climatic conditions of heavy rain high humidity ood ~

intense sunlight The equipment must be able to withstand over long periods ambient c

tempratyr9s varying from a normal of 4deg C to a maximum of 500 C i_

All materials used in themanufacture and construction shall be frBe fron

defects and shall be made having proper regard for safety and in strict accordance wit

all the relevant requirements and regulations of the Electricity Supply Authority

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13 Compliance with Manufactures Specifications

Tha Ccntractor shall ensure that the equipment and parts used will be

entirely suitable for t~evvork to be performed and that they will be manufaotured to

proper clearances and fit He shall further ensure that the loading of equipment will under

all normal circumstances not exceed the maximum laid dawn at agreed in writing by the

manufacturer

The Contractor shall be responsible for the inspection of all equipment and

parts before their inoorporation in the works to ensure that they comply with the

condrtlons of the oontract and that they are not defective In Ilny way as regards materiels

or workmanship should any such noncompllance or dafectsbe found during the

inspection the Contractor shall correct or cause to be corrected sich nonmiddotcompliance lnd

defects all at the Contraotors expense and to the satisfaction of the Engineer

14 Maintenance Period

All repairs and replacements required during the Maintenance Period shall

be carried out with despatch and an adequate supply of spares shall be availabad for this

purpose (See also clause 10)

15 ElectricitySupply

The Contractor shall carry out negotiations with the Electricity Supply

Authority concerned an behalf of the Department of Highways for permanent electricity

supply to the installation Bnd any costs associated with obtaining this supply shall be

included in the contract rates The Contractor f1ust ensure that the equipment supplied

will function correctly at the supply voltage and must allow for normal variations and

surges

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16 Igtefinitions

Unless speCifically defined herein definitions shall be as given In British Standard

892 1967 Glossary of Highway Engineering Terms and in British Standard

I Code of Practice CP 1004 Street Lighting both as amended at the time of Tender

a) Lantern A housing for one or more lamps comprising the body and

I any refractor refleotor diffuser or enclosure associated with the lamp

or lamps

bl Owooch The distance measured horizontally between the centre of a

fantern mounted on a bracket and the centre of the column or well

face

cJ QIflrhang The distance measured horizortally between the centre of aI fantam and the adjacent edge of the pavement

d) Mounting Height The vertical distance betWeen the centre of the

lantern and the surface of the pavement

e) Spacing The distance measured parallei to the centre ine of the road

between successive lanterns In a staggered arrangement this

distance is measured parallel to the centre line from the centre of a

lantern on one side of the road to the centre of the next lantern on

the opposite side

I) aaam That portion of the light output of the lantern contained by the

solid angle subtended at the effective light oentre of the lantern

containing the maximum intensity but no intensity less than 90 of

the maximum intensfty

g) Iumjoous Flux The light given by a light source of lantern or received

by a surface irrespective of the direction in which it is distributed

The unit of luminous Flux is the Lumen LM)

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hI j ower Hemispherical FIx or Downward FIIIX The luminous Flux

emitted by a lantem in all directions below the horizontal

il reek Intensity Ratio The ratio of the maximum Intensity to the mean

hemispherical intensity of Ihe light emitted below the horizontal

j) Mean Hemispherjoallnlensi1yen The downward flux divided by 628

(This is the average intensity in the lower hemisphere

k) Intensity Ralio The ratio of the actual intensity in any direction of a

lantem to the mean hemispherical intensity

I) luminous Inleosltyen The light giving power of a lantern in any particUlar

direction The unit of luminous intensity is the Candela (cd) Beam

Center lsocandela Curve Isocendela diagram Polar Curve

mJ Beam center A direction midway between the directions for ~hich

the intensity is 90 percent of the maximum in a vertical plane through

the IOOximum and on a conicsl surfaoe throught the maxlmum

n)lsQcandala curve A curve traced on an imaginary sphere with the

source at its center and joining all tha poillts corresponding to those

direotions in which the luminous intensity is the same or Ii plane

projection of this curve

0) ISQCodea diagram An array of isocandela ourves

p) Polar Curve Curve of light distribution using polar co-ordinates

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2 Materials and Equipment f

f 21 Lanterns ~

~ The supplier must submit the guaranteed letter of these BobY alluminailll r shall be non-corrosive light alloy metal colour if applied shall be stove enamelled finish in

gray or aluminum shadet Reflector if used shall be mirror type and made of smdized aluminum 1

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j sheet Gasket shall be applied on every par where insact is expected to enter into lemp

1 compartment including that at sllpfltter collar The gasket used shall be non-aging andt heat-resistant type transverse and longitude cross~iection drawing of the lIsminair ecaled

11 shall be furnished with the quotation

Refractor [enclosing bowl) if made of the transparent acrylic will not

produce less output due to colour changing within first 6 years of servloe

a) Lanterns she be of the cut-ltlff or thll samimiddotcut-off type as shown on

the Drawings or as specified in the Spacial Provisions Non-cutmiddotoff

lanterns shillI not be used

bJ Unless otherwis~ specified the mounting height shall be not less than

75 meters (or 250) nor more 1han 12 meters (or 400)(

c) Where there is no speed limit on the road or where thare is II speed

limit of more than 60 kilometers per hour the minimum clearance

between columns and the edge of the pavement shall normallv be

16 meters but where this is not reasonably attainable such as

1 bridge locations and cther rejtriotad areas the minimum olearance i i bull i may with the previous permission of the angineer be reduced 10 10~1

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WherB there is a speed limit of less than 60 kilometers per hour the

minimum otearance between columns and the edge of the pavement should be 16

meters but this may be reduoed to

050 meter for crossfaJis of not more than 1 in 40 towards the curb

OSO meter for crossfalls of between 1 in 40 and 1 in 24 towards the

ourb

075 meter for crcssfalls of more than 1 in 24 towards to ourb with the

previous permission of the Engineer

d) Each lantern should normally di rect two beams along the length of

the road rhepolar curves of the lenterns in both horizontal and

vertioal planes snould be smooth and free from any abrupt

variations so that the luminous intensity diminishes smoothly and

progressively from its maximum For centrally mounted lanterns the

beams should ba approximately axial for lanterns mounted at the

sides of tns roadway the maximum toe-in of the beam will be 160

Adequate but not excessiVE Ught should be dirlided towards tha ourbs

and outer edge of the road Wliere area illumination is required using

high mast righting these provisions she not necessarily apply

il) For out-off lanterns the beam should 00 in a direotion about 650 from

the downward vertical The peak Intensity ratio shall be between 20

bull and 40 the intensity ratio in the zone [JO to 3()O below a horizontal

plene through the lantern shali be between 03 and 20 An Intensity

ratio of 12 shall lie between elevations of 72deg imd 7Bofrom the

downwsrd vertical in the vertical plane parallel tomiddotthe lIJ(is of ths

roadway and the horizontal intensity ratio in the same plane shall be

not greater than 015

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f) In the case of semi-out-off lanterns the beam should lie in a direotion

about 750 from the downward vertical The peak intensity ratio shall

be between 18 and 40 The intensity ratio in the 00 to 300 zone

below a horizontal plane thrOJgh the lantern shall be between 03 and

17 An intensity ratio of 12 shall ie between elevations of 780 and

840 from the downward vertical in the vertical plane paralled to the

axis of the roadway and the horizontal intensity ra1io in the same

plana shall be not greater than 06 except that in the case of sodium

lamps the intensity ratio 01 12 shall lie Similarly between BOO and

860 and the horizontal intensity ratio in the same plane shall not

exceed 07

gl The siting of lanterns shall be in accordance with the following table

which gives minimum required illumination Particular care shall be

taken with the siting of lanterns on bends and surnmit vertical ourves

At junctions and roundabouts lantern spacing shall be designed so as

to give at least the minimum illumination required by the following

tables and also lanterns shan be spaced and sited where possible

so as to delineate the cour39 of the roadway plainly to road ussr

approaching from any normal direction without any possible mislending

impressions

The level of illuminetion provided as road junctions and roundabouts bull i

shall be at least as high as that on any of the approach roads and in

the case of roundabouts a minimum Jeve middotof illumination at any curb

Hne of 10 lUmens per square meter shall be provided

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Required minimum Average Horizontal lruminatlon

in lumens per Square Meter (Lumens per Square Footl

Central-Urban Sub-Urban Rural

Areas Areas Areas

High Grade MotorWays 215 (201 150 (14) 1075 (10)

At J~notions 215 (2Q) 215 (20) 150 (14) jgt Main Routes 215 (20) 130 112) 97 (09)

I Seo90dary Routes 130 112) 97 (09) 65 (06)

I Local Roads 97 (09) 65 (06) 21 (Q2bullbullI (Residentiaj

areas only)

The Contractor shalt certify that the design of the installation has been

done in accordanoe with American Standard Practice for Roadway lighting (D 121 shy

1~l pubished by the lIIumnating Engineering Society 345 East 47th Street New York

or in accordance with British Standard Gode of practice CP 1004 of 1963 Street lighting

Published by the British Standards Institution 2 Park Lane London WI except in so tar

8S these have baen varied by the provisions of this speoification or any special provisions

22 Wiring end Switching

The Wiring and switching supplied for control of lanterns (each device bull

controlling B group of lantern) shall be of a type approved by and agreed with thei

Electricity Supply Authority Unless otherwise specified photoelectrio relayswitching shall

be used

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23 Columns and Brackets

ltII Columns shall be of steei construction ai1d shail consist of tapered

round hollow shafts with anchor bases Each column shall be provided with a suitable

cable slot and a weatherproof service door fitted with a tamperproof lock All locks shall

be of the same pattern and six keys shall be provided for them

b) A non-hygroscopic mounting bord cqmposed of electrically insulating

material shall be fitted in an easily acoessibfe position inside the column and ehall be of

c suitable size to take all necessary electrical equipment Adjacent to this mounting bosrd

there shall be prollided on the inside of the column tWo stainless steel studs not less

than 4 centimeters long nor less than 8 millimeters diameter and compi~t8 with stainless

steel look nuts and washers for use as earthing connections

c) Brackets to provide the required Outreach shall be of sufficientlv strollfij ~

bull construction to support the lantern under all normal conditions without significant 1

movement and shall be provided with suitable fittingsto take thelantems When in

positioo bralt~ts shall be inclined upwards at an angla of approximately 1SO to the

horizonaIand shall be fixed to their supports by suitable welding fastenings or wall

C plates

dl Columns and brackets shall be strucrursl steel having the following

mechanical properties

bull Thiokness of sheet steel (min) 4mm

~ Ultimate TeruJlie Strength (min) 41 kgQ1m2 Imiddot

bull Yleld Point (min) 25kgmm2

- Elongation (min) 21

oj Straightness That part of the column above the ground shtll not deviate

from straightness by more than an amount calculatad at II rate of 21 mm per meter of

column length ~

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24 High Mast Lighting

Mounting heights from 20 meters and more shail be High Mast

a) Columns carrying high mast lighting shall be designed to permit the

whole of the lantern carriage to be easily s6fely and quickly lowered to ground level for

maintenance works The columns shail bee designed in accordanoe with British Standard

449 or other internationally aocepted standard for design of structural steelwork in

buildings except that the temporary horizontal defleotion of the top of the column may to

up to 75 of the height above ground In calculating the tending moment at ground

level due to wind load it shall be assumed that the wind speed at B point ten meters

above ground level is 60 kjiometers per hour and the design of the column hall be such

that wind excited oscillations are damped as much as possible Adequate allowance shalf

be Ij1sde for the stresses produced by 6uoh oscllationslt Details shall be given of the

vertical and horizontal load Bnd the bending moment at the foundations

bl The base plate shall ba free from laminations and all dimensions of the

base plate shall be provided including details of the holding down belts A cable entry

hole of not less than 30 cen1imeters diameter shalf be prCNided centrally in each base

middot c plate and the bottom of lile maat shall pass through the base plate and be welded onC

both sides An altsmstiv9 construotion of equal strength may be accepted by the

Engineer but a butt weld on the base plale will not be accepted

Each holding down belt shall be tensioned to the design value and within

the maintenance period the bolts shall be checked and retightened 8S necesllsry after

Whioh the nuts shalf be repainted

oJ The columns shall be deli~ered to the site in the minimum practicable

number of lengths Any joints necessary shall be positioned as near the top of the

Qotumns as possible

11

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d) The lantern carriage shail support the designed number of lanterns

Vithiout significant sway or movement and shall be capable of supporting these lanterns

II cradle with two men for maintenance work The lantern carriage shall be protected

prevent damage to the painted surface of the columns rotation of the carriage during

6IgtIIIJ and lowering shall be prevented and correct location when raised shall be ensured

some positive means It sha be possible to remove the lantem carriage without

illwerirl1l the column

el The lantern carriage shall be raised and lowered by a self sustaining

capable of being operated either by hand or by a portable electrically operated tool

middotIt shall be possible to lock the winch in any position by a simple robust and easily

operated mechanism The worm gear shall have a ratio of at Ieast 201

f) The winch shall have removable handles and it shall be mounted within

the base compartment at a convenient Vcrking height The opening in ths column shall

be of sufficient size to allow proper operation and maintenance of the winch mechanism

A weatherprClOf lab1 shall be fixed in an obvious position wihtn the column base giving

a full list of allmiddot lubricating points on the winch and other mechanism and detail of

recommened lubricants Winches fixed inside the column shall bs provided with a

substantial cover to fully protect them failing dirt and dust

gl A sufficient number of turns of the hoisting cable shall be left on the

winch drum when the carriage is fully lowered to ensure that the cable anchorage on the

drum do~s not take the full load of the carriage at any time

hI the last 30 centimeters of travel to t~e fully raised position of the

carriage shall be by hand operation and for lhis purpose either a limit switch shall be

provided to cut off the power supply to the portable electric tool at the appropriate time

or else some form of indication shall be provided to indicate when the carriage is 30

centimeters from the fully raised position

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i The winch cable shall be of stranded stainless steel wires and shall have

sufficient capacity to carry safely the lantern carriage complete with lanterns and a cradle

with two men attached thereto Great oare shall be taken during installation to ensure

that the hoisting cables do not twist or kink and any set twist Of kink shall be sufficient

rflsson for the rejection of that cable

j) All parts of the raising and loWering mechanism which are inaccessible

after erectlon of the oolumns shall be adequately protected against moisture dirt and

corrosion Where neoessary pulleys shall be fitted with shields to prevent the winch

cable becoming displaced Pulleys for electrioal cables shaH be of sufficient dimameter

that the cablll will not be bent to a smaller radius then that permitted by loca relulations

or those of the British Institutiof of Electrical Engineers 14th Edition Where necessary

for continued tfOllbe free operation metal parts shall be of stainless steel or other

approved non-corrodible material

kl When pewsr tool operation is used a suitable power outlet shall be

providad and the operalor shall be adequately safeguarded against any electrical shocks

rhe power tool shall preferably be designed to work on a reduced voltagee end in this

OBse a suitable approved type of translormar shall be provided The power too shall be

designed so that continuOlls operation will cause no harmful effects on either the winch

Of the tool and in the event of power failure the winch shall be self locking Conversion

from power to hand operation and vice versa shall be quick and easy and shall not require

spacial tools Full imOfmallon on tha type of power tool proposed shall be given with the

lender

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25 Protection Against Corrosion

Unless otherwise spceified columns bracket arms and brackets shall be

protected against corrosiOil eithsr by painting or galvanizing as follows

261 Painting

sl Cou~ns and masts shall be treated internalty with hot asphalt under

high pressure so as to givB a complete arid unbroken asphaltic coVering or other approved

anti-corrosion treatment shalt be applied to give at least equally good protection Bas63

shall be similarly treated up to a level of 25 centimeters above ground ievel

b) Before delivery to the site columns masts steelltracKets and external

fitting shall have all external welds ground down ilnd all external surfaces cleaned by shot bull

blasting or other approved method to a whitsmetal finish free of all signs of rust

Immediately folJowil1g t~is treatment the items ahall be painted with two coats of tropical

red lead undercoat followed by two coats of aluminium paint or they shall be treated in a

similar and hot tass affective manner aoceptable to the Enginesr to present subsequent

oorrosion After Grection ali imperfections and damage shall be made good to the

Engineers satisfaction and the items shall be given a final coat of all aluminium paint

262 Galvanizingmiddot

a) Before delivery to the site columns masts steel brackets and extemal

fittings shall have all extemal welds ground down Poles and other ferous materials shall

be galvanized both inside and outside by hot dipped in accordance with ASTM A 625-76

Weight of zinc coating shall not be less han 550 gram per square meter

14

b) Base of columns both inside and outside shali be coated with bituminous paint

up 10 a level o 25 centimeters above the base plate

3 Construction Methods

31 Excavation and Reinstatement

Excavation for cable or conduit laying or for foundations and reinstatement

shall be Darned out in accordance with thaprovisions of Section 25 (Sub-Clause 2632)

of 1hampS6 specifioations Reinstatement shall be suoh that the surface is restored to at

east its original standard

32 Concrete Work

All necessary foundations and footings or other concrete work shall be

carried out in acoordance with Sections 61 (sub-Clause 5112) and 02 of these

specifications Unless otherwise specified on the Drawings or in the Speoial Provisions

ooncrete shall be olass 8 Foundations shail be placed in one operation except that the

top 5 oentimetars may be placed after the superimposed structure is In position The

el(posed portions of foundations shall be formed to present a neat and tidy appearance

and sloped to shed water aV)lay from the structure supported Where existing

obs1ructions prevent the construction 01 foundations as shown on the plans then an

effective alternative may be provided subject to the prior approval of the Engineer

amp Ministry of National Development Department of Highways Specification For Highway

Construction 1970 Bangkok Thailand

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15

33 Conduits fittings and boxes

Copduits fittings and boxes shall be providsd and installed in accordance

with the provisions of Section 511 of these Speoifications except that chemically stable

tough plastic conduits fittings and boxes aocording to samples previously approved by

the Engineer will be permitted providing thet they do not soften when exposed to high

ambient temperature

The contractor may use alarger size of conduit than that specified at no

extra charge if he wishes but in this case the entire run shall be of the same size No

reducing touplings will be permitted

When metal conduits ara used cuts shall be made square amp11d true and all

couplings shell Ie screwed up until the ends of the conduits are brought together in order

to proVide a good electrical contact throughout The threads on all ferrous metal oonduits

bullsh8l1 be painted with rusT preventing paint before couplings are made up Where themiddot

coating on ferrous metal conduit has been dam~ged In handHng such damaged places

shall be painted with rust prevanting paint before installation

All conduit ends shall be threaded and capped until wiring is started When

caps are removed the threaded ends shall be provided with approved conduit bushings

Conduits shall be laid to a depth of not less than 50 centimeters below

pEIVed footwalks and medians and not less the 75 centimeters below the roadway

surface The location of all conduits at curb lines shall be marked by means of a Y at

laaat 10 centimeters high incised in the face of the curb directly above the conduit

Conduit terminating in iii standards cabine1s or pedestals shaH extend at least 5

C9Iltimeters vertically above the bottom of the box Such conduit shall be sloped towards

the top of the box to facilitate pulling Conduit entering the bottom of the box shall enter

in the direction of the run

16

34 Pull boxes or Junction Boxes

Pull boxes shall be installed as shown on the plans and in any case at not

more than 00 meters intellals The contractormiddotmay install additional pull boxes without

extra charge jf he wishes Pull bo)(es shall be of reinforced concrete not less than 10

centimeters thick and may be of approved pre-cast deSign Reinforced concrete covers

acoured by two recessed brass bolts shaff be used on faatwalks the covers baing

inscribed Street Ughting on the outside Under the roadway covers shall be of steal or

oast iron inscribed as specified middotabove andlaid in II suitable concrete footing to withstand

trecffic loads Metal covers shall be effectivalr earthed to an earthing rod inside the box

Tops of puUboxes ~Ilan beeffectivoaly level with the slrfOunoing paved areas whether

footwslk or roadway but in unpaved areas the tOpl of pull boxes shall be buried 30

oentimeters below groul1d level The bottom of pull boxes shall be bedded in sand and

cement or crushed rock Permanent makers shall be provided and erected

toshow the position of all pull boxes

35 Tasting

A funotional test shari be made on completion of the work n order to

demonStrate thet every part of the equipment and installation fUllctionS as intended and

specJfled This test shall consist of not less ~a~ five nights continuous and satisfaatOlY

operation If any defects or unsatisfactory operation are revealed this condition shalf be

oorrected imd tne test continoued until the required five nights of satisfaotory opera~ion

have been performed

Prior to the functional test tlie contractor shaff carry out thefollowing

tests to the entire satisfaction of the Engineer

1) Each circuit shall be iested for oontinuity

2) Each circuit shall be tested for cething

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17

1

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3) A m~gger test shall be made between eaoh cirouit and eart) The

Insulation fesistance shall be shown to be at least that specified within the relevant

codes

4) The distribution horizontal illumination valve of specified spacing in eaoh

code item in rale 6flux measured between two iuminair as avery two meters along

longitudinal and transverse road way line are essentially measured to show maxmean

min illuminati and uniformity ratios

Uniformity ratio minimum illumination average illumination

= not less than 126

and maximum illumination

minimum illumination

not more than 61

5) Rainproof Test

The lantern under test shall be mounted in its normal orientation on en

adjustable sUpPOrt as shown in fig 1 so that the fitting is near the center of the arc

desoribed by 1he oscillating tuba

After being switched on for one hour the lantern shllil be subjected to II

spray of water at a temperature not exceeding 200 C and ilt e pressure of approximately

67 Ibsin2 104 kgscm2i the tube being oscillated so as to describe an angle of SO

degrees from the vertical and in both directions from it This treatment shall be continLllld

for 20 nilnutes the fitting being switcher off after 10 minutes

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18

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At tha end of this test there shall be to damage to the lamp or enclosure

and no visible evidence of water having aocumulated it the fitting

04 rnm dlo hDln

Fig Apparatus for rainprooftest

On the completion of testing the contractor shall supply to the engineer

three copies of as buill plans and circuitdiagrams whicn shall clearly indicated any

modifications which have been made to the original design

4 Measurement

41 Unless a Bill of quantities is provided thjs item will not be measured and payment

shall be made one lumpsum basic

42 When a Bill Of Quantities is provided measurements shall made on the items detailed

In the Sill of quantities completed accepted and neesured in place The unit of

measurement for each item shall be the unit of measurement shown in the Bill of

Ouentitias

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19

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5 Payment

51 The lump sum payment for the street lighting installation shall be full compensation

for furnishing ell materials labour equipment tools supervisiorl testing and incidentals

neossary to complete the work inoluding any necessary backfill foundations restoration

of footwalk roadway curbing and appurtenances damaged or destroyed during

construction The payment shall also cover the cost of design where this Is called for

The ILlmp sum paymEmt shall be deemed to include full compensation for

all additional materials and work not shown on Ihe Drawings or specified which are

nesessary to complete the installation

62 The work measured as provided in 42 shall be paid at Ihe contraot unit price for eacl1

item such price and payment constituting flln compensation for aU materials labour

equipment tools and incidentals nseded to complete the work All materials Bnd work

necessaJY for satisfactory completion of the installation which are not specifically

mentioned in the Bilt of quantities shall be deemed to be included in the items shown

corw~ors 6 Information to be supplied by bidtfelS

61 catalogs at electrioal components lanterns ballast etc

62 Plans and circuit diagrams ground rod connection diagram

S3 Photometric data

631 Utilisation Curve

632 Isoc8ndala diagram bull

633 Horizon~81 isofootcandle diagram

634 Polar light distribution curvs

64 Cataisl of columns BraCKets Base Plates concrete foundations

20

7 Other details of steel columms not mentioned above should comply with British

Standard 1840 1960 The decision shall be made by the Department

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bull Na 86W 108 Watt

135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

bull 1OOOW 1043 Watt

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Page 4: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

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CONTENTS

1 General

11 Description

12 Responsibility for Design and Materials

13 Compliance with Manufactures Specifications

14 Maintenance Period

15 Elootricity Supply

16 Definitions

2 Materiels lno Equipment

21 lanterns

22 Wiring and Switching I

23 Columns and Brackets

24 High Mast Lighting

25 Protection Against Corrosion

251 PlIiminll

252 Galvanizing

3 ConstrllCtian Methods

31 Excavation and Reinstatement

32 Concrete Work

33 Conduits Fittings and BoxesI I 34 Pull boxes or Junction Boxes

35 Testing

4 Meas4rment

O Payment

6 Information to be Supplied by Bidder

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7 Other details 2Q

8 Jlllu~1tun1~~Uifgt3flllMnflYlYl11111lj~~1~1fil m~ litH

n1l~yj-l1JPlmflfN 21-29

9 PI1JJ fua~l iJlJ1liJ~~h h-16tlI1i11f1JJ)11 29

10 1J1Jlfua(f)nillJlltl--l~11middoth~lu~l~rn~iht~fmn (b~mUijffl 14) 30

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I GENERAL SPECIFICATION FOR STREET LIGHTING I i

I 1 General

11 Description

This work shall consist of the supply of all lanterns complete brackets

columns and other supporting devices bases cables switchgear and all necessary

ancillary equipment together with the transportation storage assembly erection

connection and testing at the same in order to supply 2 complete street lighting system

in accordanqe with the details shown on the plans and as specified herein and in the

Special Provisions if any Design of the system shall be included

middot12 Responsibifity formiddotDesign arid Materialsmiddot

The Contractor shall be solely responsible for the adequate design and tl-

co-ordinated functioning of all goods and construction furnished under this contract All

the component parts shall be designed so as to ensJre their proper co-ordinated

functionin and operation All equipment shall be of the makers standard models and

shall include all recent improvements in design and materials All materials used in

manufacture and construotion shall be of high quality and fully in accordance with the

beat modern practice

The equipment offered and the work done shall be suitable for continue

trouble-free operation under adverse climatic conditions of heavy rain high humidity ood ~

intense sunlight The equipment must be able to withstand over long periods ambient c

tempratyr9s varying from a normal of 4deg C to a maximum of 500 C i_

All materials used in themanufacture and construction shall be frBe fron

defects and shall be made having proper regard for safety and in strict accordance wit

all the relevant requirements and regulations of the Electricity Supply Authority

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13 Compliance with Manufactures Specifications

Tha Ccntractor shall ensure that the equipment and parts used will be

entirely suitable for t~evvork to be performed and that they will be manufaotured to

proper clearances and fit He shall further ensure that the loading of equipment will under

all normal circumstances not exceed the maximum laid dawn at agreed in writing by the

manufacturer

The Contractor shall be responsible for the inspection of all equipment and

parts before their inoorporation in the works to ensure that they comply with the

condrtlons of the oontract and that they are not defective In Ilny way as regards materiels

or workmanship should any such noncompllance or dafectsbe found during the

inspection the Contractor shall correct or cause to be corrected sich nonmiddotcompliance lnd

defects all at the Contraotors expense and to the satisfaction of the Engineer

14 Maintenance Period

All repairs and replacements required during the Maintenance Period shall

be carried out with despatch and an adequate supply of spares shall be availabad for this

purpose (See also clause 10)

15 ElectricitySupply

The Contractor shall carry out negotiations with the Electricity Supply

Authority concerned an behalf of the Department of Highways for permanent electricity

supply to the installation Bnd any costs associated with obtaining this supply shall be

included in the contract rates The Contractor f1ust ensure that the equipment supplied

will function correctly at the supply voltage and must allow for normal variations and

surges

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16 Igtefinitions

Unless speCifically defined herein definitions shall be as given In British Standard

892 1967 Glossary of Highway Engineering Terms and in British Standard

I Code of Practice CP 1004 Street Lighting both as amended at the time of Tender

a) Lantern A housing for one or more lamps comprising the body and

I any refractor refleotor diffuser or enclosure associated with the lamp

or lamps

bl Owooch The distance measured horizontally between the centre of a

fantern mounted on a bracket and the centre of the column or well

face

cJ QIflrhang The distance measured horizortally between the centre of aI fantam and the adjacent edge of the pavement

d) Mounting Height The vertical distance betWeen the centre of the

lantern and the surface of the pavement

e) Spacing The distance measured parallei to the centre ine of the road

between successive lanterns In a staggered arrangement this

distance is measured parallel to the centre line from the centre of a

lantern on one side of the road to the centre of the next lantern on

the opposite side

I) aaam That portion of the light output of the lantern contained by the

solid angle subtended at the effective light oentre of the lantern

containing the maximum intensity but no intensity less than 90 of

the maximum intensfty

g) Iumjoous Flux The light given by a light source of lantern or received

by a surface irrespective of the direction in which it is distributed

The unit of luminous Flux is the Lumen LM)

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hI j ower Hemispherical FIx or Downward FIIIX The luminous Flux

emitted by a lantem in all directions below the horizontal

il reek Intensity Ratio The ratio of the maximum Intensity to the mean

hemispherical intensity of Ihe light emitted below the horizontal

j) Mean Hemispherjoallnlensi1yen The downward flux divided by 628

(This is the average intensity in the lower hemisphere

k) Intensity Ralio The ratio of the actual intensity in any direction of a

lantem to the mean hemispherical intensity

I) luminous Inleosltyen The light giving power of a lantern in any particUlar

direction The unit of luminous intensity is the Candela (cd) Beam

Center lsocandela Curve Isocendela diagram Polar Curve

mJ Beam center A direction midway between the directions for ~hich

the intensity is 90 percent of the maximum in a vertical plane through

the IOOximum and on a conicsl surfaoe throught the maxlmum

n)lsQcandala curve A curve traced on an imaginary sphere with the

source at its center and joining all tha poillts corresponding to those

direotions in which the luminous intensity is the same or Ii plane

projection of this curve

0) ISQCodea diagram An array of isocandela ourves

p) Polar Curve Curve of light distribution using polar co-ordinates

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2 Materials and Equipment f

f 21 Lanterns ~

~ The supplier must submit the guaranteed letter of these BobY alluminailll r shall be non-corrosive light alloy metal colour if applied shall be stove enamelled finish in

gray or aluminum shadet Reflector if used shall be mirror type and made of smdized aluminum 1

1 ~

j sheet Gasket shall be applied on every par where insact is expected to enter into lemp

1 compartment including that at sllpfltter collar The gasket used shall be non-aging andt heat-resistant type transverse and longitude cross~iection drawing of the lIsminair ecaled

11 shall be furnished with the quotation

Refractor [enclosing bowl) if made of the transparent acrylic will not

produce less output due to colour changing within first 6 years of servloe

a) Lanterns she be of the cut-ltlff or thll samimiddotcut-off type as shown on

the Drawings or as specified in the Spacial Provisions Non-cutmiddotoff

lanterns shillI not be used

bJ Unless otherwis~ specified the mounting height shall be not less than

75 meters (or 250) nor more 1han 12 meters (or 400)(

c) Where there is no speed limit on the road or where thare is II speed

limit of more than 60 kilometers per hour the minimum clearance

between columns and the edge of the pavement shall normallv be

16 meters but where this is not reasonably attainable such as

1 bridge locations and cther rejtriotad areas the minimum olearance i i bull i may with the previous permission of the angineer be reduced 10 10~1

lt Z~ meter

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WherB there is a speed limit of less than 60 kilometers per hour the

minimum otearance between columns and the edge of the pavement should be 16

meters but this may be reduoed to

050 meter for crossfaJis of not more than 1 in 40 towards the curb

OSO meter for crossfalls of between 1 in 40 and 1 in 24 towards the

ourb

075 meter for crcssfalls of more than 1 in 24 towards to ourb with the

previous permission of the Engineer

d) Each lantern should normally di rect two beams along the length of

the road rhepolar curves of the lenterns in both horizontal and

vertioal planes snould be smooth and free from any abrupt

variations so that the luminous intensity diminishes smoothly and

progressively from its maximum For centrally mounted lanterns the

beams should ba approximately axial for lanterns mounted at the

sides of tns roadway the maximum toe-in of the beam will be 160

Adequate but not excessiVE Ught should be dirlided towards tha ourbs

and outer edge of the road Wliere area illumination is required using

high mast righting these provisions she not necessarily apply

il) For out-off lanterns the beam should 00 in a direotion about 650 from

the downward vertical The peak Intensity ratio shall be between 20

bull and 40 the intensity ratio in the zone [JO to 3()O below a horizontal

plene through the lantern shali be between 03 and 20 An Intensity

ratio of 12 shall lie between elevations of 72deg imd 7Bofrom the

downwsrd vertical in the vertical plane parallel tomiddotthe lIJ(is of ths

roadway and the horizontal intensity ratio in the same plane shall be

not greater than 015

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f) In the case of semi-out-off lanterns the beam should lie in a direotion

about 750 from the downward vertical The peak intensity ratio shall

be between 18 and 40 The intensity ratio in the 00 to 300 zone

below a horizontal plane thrOJgh the lantern shall be between 03 and

17 An intensity ratio of 12 shall ie between elevations of 780 and

840 from the downward vertical in the vertical plane paralled to the

axis of the roadway and the horizontal intensity ra1io in the same

plana shall be not greater than 06 except that in the case of sodium

lamps the intensity ratio 01 12 shall lie Similarly between BOO and

860 and the horizontal intensity ratio in the same plane shall not

exceed 07

gl The siting of lanterns shall be in accordance with the following table

which gives minimum required illumination Particular care shall be

taken with the siting of lanterns on bends and surnmit vertical ourves

At junctions and roundabouts lantern spacing shall be designed so as

to give at least the minimum illumination required by the following

tables and also lanterns shan be spaced and sited where possible

so as to delineate the cour39 of the roadway plainly to road ussr

approaching from any normal direction without any possible mislending

impressions

The level of illuminetion provided as road junctions and roundabouts bull i

shall be at least as high as that on any of the approach roads and in

the case of roundabouts a minimum Jeve middotof illumination at any curb

Hne of 10 lUmens per square meter shall be provided

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Required minimum Average Horizontal lruminatlon

in lumens per Square Meter (Lumens per Square Footl

Central-Urban Sub-Urban Rural

Areas Areas Areas

High Grade MotorWays 215 (201 150 (14) 1075 (10)

At J~notions 215 (2Q) 215 (20) 150 (14) jgt Main Routes 215 (20) 130 112) 97 (09)

I Seo90dary Routes 130 112) 97 (09) 65 (06)

I Local Roads 97 (09) 65 (06) 21 (Q2bullbullI (Residentiaj

areas only)

The Contractor shalt certify that the design of the installation has been

done in accordanoe with American Standard Practice for Roadway lighting (D 121 shy

1~l pubished by the lIIumnating Engineering Society 345 East 47th Street New York

or in accordance with British Standard Gode of practice CP 1004 of 1963 Street lighting

Published by the British Standards Institution 2 Park Lane London WI except in so tar

8S these have baen varied by the provisions of this speoification or any special provisions

22 Wiring end Switching

The Wiring and switching supplied for control of lanterns (each device bull

controlling B group of lantern) shall be of a type approved by and agreed with thei

Electricity Supply Authority Unless otherwise specified photoelectrio relayswitching shall

be used

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23 Columns and Brackets

ltII Columns shall be of steei construction ai1d shail consist of tapered

round hollow shafts with anchor bases Each column shall be provided with a suitable

cable slot and a weatherproof service door fitted with a tamperproof lock All locks shall

be of the same pattern and six keys shall be provided for them

b) A non-hygroscopic mounting bord cqmposed of electrically insulating

material shall be fitted in an easily acoessibfe position inside the column and ehall be of

c suitable size to take all necessary electrical equipment Adjacent to this mounting bosrd

there shall be prollided on the inside of the column tWo stainless steel studs not less

than 4 centimeters long nor less than 8 millimeters diameter and compi~t8 with stainless

steel look nuts and washers for use as earthing connections

c) Brackets to provide the required Outreach shall be of sufficientlv strollfij ~

bull construction to support the lantern under all normal conditions without significant 1

movement and shall be provided with suitable fittingsto take thelantems When in

positioo bralt~ts shall be inclined upwards at an angla of approximately 1SO to the

horizonaIand shall be fixed to their supports by suitable welding fastenings or wall

C plates

dl Columns and brackets shall be strucrursl steel having the following

mechanical properties

bull Thiokness of sheet steel (min) 4mm

~ Ultimate TeruJlie Strength (min) 41 kgQ1m2 Imiddot

bull Yleld Point (min) 25kgmm2

- Elongation (min) 21

oj Straightness That part of the column above the ground shtll not deviate

from straightness by more than an amount calculatad at II rate of 21 mm per meter of

column length ~

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24 High Mast Lighting

Mounting heights from 20 meters and more shail be High Mast

a) Columns carrying high mast lighting shall be designed to permit the

whole of the lantern carriage to be easily s6fely and quickly lowered to ground level for

maintenance works The columns shail bee designed in accordanoe with British Standard

449 or other internationally aocepted standard for design of structural steelwork in

buildings except that the temporary horizontal defleotion of the top of the column may to

up to 75 of the height above ground In calculating the tending moment at ground

level due to wind load it shall be assumed that the wind speed at B point ten meters

above ground level is 60 kjiometers per hour and the design of the column hall be such

that wind excited oscillations are damped as much as possible Adequate allowance shalf

be Ij1sde for the stresses produced by 6uoh oscllationslt Details shall be given of the

vertical and horizontal load Bnd the bending moment at the foundations

bl The base plate shall ba free from laminations and all dimensions of the

base plate shall be provided including details of the holding down belts A cable entry

hole of not less than 30 cen1imeters diameter shalf be prCNided centrally in each base

middot c plate and the bottom of lile maat shall pass through the base plate and be welded onC

both sides An altsmstiv9 construotion of equal strength may be accepted by the

Engineer but a butt weld on the base plale will not be accepted

Each holding down belt shall be tensioned to the design value and within

the maintenance period the bolts shall be checked and retightened 8S necesllsry after

Whioh the nuts shalf be repainted

oJ The columns shall be deli~ered to the site in the minimum practicable

number of lengths Any joints necessary shall be positioned as near the top of the

Qotumns as possible

11

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d) The lantern carriage shail support the designed number of lanterns

Vithiout significant sway or movement and shall be capable of supporting these lanterns

II cradle with two men for maintenance work The lantern carriage shall be protected

prevent damage to the painted surface of the columns rotation of the carriage during

6IgtIIIJ and lowering shall be prevented and correct location when raised shall be ensured

some positive means It sha be possible to remove the lantem carriage without

illwerirl1l the column

el The lantern carriage shall be raised and lowered by a self sustaining

capable of being operated either by hand or by a portable electrically operated tool

middotIt shall be possible to lock the winch in any position by a simple robust and easily

operated mechanism The worm gear shall have a ratio of at Ieast 201

f) The winch shall have removable handles and it shall be mounted within

the base compartment at a convenient Vcrking height The opening in ths column shall

be of sufficient size to allow proper operation and maintenance of the winch mechanism

A weatherprClOf lab1 shall be fixed in an obvious position wihtn the column base giving

a full list of allmiddot lubricating points on the winch and other mechanism and detail of

recommened lubricants Winches fixed inside the column shall bs provided with a

substantial cover to fully protect them failing dirt and dust

gl A sufficient number of turns of the hoisting cable shall be left on the

winch drum when the carriage is fully lowered to ensure that the cable anchorage on the

drum do~s not take the full load of the carriage at any time

hI the last 30 centimeters of travel to t~e fully raised position of the

carriage shall be by hand operation and for lhis purpose either a limit switch shall be

provided to cut off the power supply to the portable electric tool at the appropriate time

or else some form of indication shall be provided to indicate when the carriage is 30

centimeters from the fully raised position

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i The winch cable shall be of stranded stainless steel wires and shall have

sufficient capacity to carry safely the lantern carriage complete with lanterns and a cradle

with two men attached thereto Great oare shall be taken during installation to ensure

that the hoisting cables do not twist or kink and any set twist Of kink shall be sufficient

rflsson for the rejection of that cable

j) All parts of the raising and loWering mechanism which are inaccessible

after erectlon of the oolumns shall be adequately protected against moisture dirt and

corrosion Where neoessary pulleys shall be fitted with shields to prevent the winch

cable becoming displaced Pulleys for electrioal cables shaH be of sufficient dimameter

that the cablll will not be bent to a smaller radius then that permitted by loca relulations

or those of the British Institutiof of Electrical Engineers 14th Edition Where necessary

for continued tfOllbe free operation metal parts shall be of stainless steel or other

approved non-corrodible material

kl When pewsr tool operation is used a suitable power outlet shall be

providad and the operalor shall be adequately safeguarded against any electrical shocks

rhe power tool shall preferably be designed to work on a reduced voltagee end in this

OBse a suitable approved type of translormar shall be provided The power too shall be

designed so that continuOlls operation will cause no harmful effects on either the winch

Of the tool and in the event of power failure the winch shall be self locking Conversion

from power to hand operation and vice versa shall be quick and easy and shall not require

spacial tools Full imOfmallon on tha type of power tool proposed shall be given with the

lender

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25 Protection Against Corrosion

Unless otherwise spceified columns bracket arms and brackets shall be

protected against corrosiOil eithsr by painting or galvanizing as follows

261 Painting

sl Cou~ns and masts shall be treated internalty with hot asphalt under

high pressure so as to givB a complete arid unbroken asphaltic coVering or other approved

anti-corrosion treatment shalt be applied to give at least equally good protection Bas63

shall be similarly treated up to a level of 25 centimeters above ground ievel

b) Before delivery to the site columns masts steelltracKets and external

fitting shall have all external welds ground down ilnd all external surfaces cleaned by shot bull

blasting or other approved method to a whitsmetal finish free of all signs of rust

Immediately folJowil1g t~is treatment the items ahall be painted with two coats of tropical

red lead undercoat followed by two coats of aluminium paint or they shall be treated in a

similar and hot tass affective manner aoceptable to the Enginesr to present subsequent

oorrosion After Grection ali imperfections and damage shall be made good to the

Engineers satisfaction and the items shall be given a final coat of all aluminium paint

262 Galvanizingmiddot

a) Before delivery to the site columns masts steel brackets and extemal

fittings shall have all extemal welds ground down Poles and other ferous materials shall

be galvanized both inside and outside by hot dipped in accordance with ASTM A 625-76

Weight of zinc coating shall not be less han 550 gram per square meter

14

b) Base of columns both inside and outside shali be coated with bituminous paint

up 10 a level o 25 centimeters above the base plate

3 Construction Methods

31 Excavation and Reinstatement

Excavation for cable or conduit laying or for foundations and reinstatement

shall be Darned out in accordance with thaprovisions of Section 25 (Sub-Clause 2632)

of 1hampS6 specifioations Reinstatement shall be suoh that the surface is restored to at

east its original standard

32 Concrete Work

All necessary foundations and footings or other concrete work shall be

carried out in acoordance with Sections 61 (sub-Clause 5112) and 02 of these

specifications Unless otherwise specified on the Drawings or in the Speoial Provisions

ooncrete shall be olass 8 Foundations shail be placed in one operation except that the

top 5 oentimetars may be placed after the superimposed structure is In position The

el(posed portions of foundations shall be formed to present a neat and tidy appearance

and sloped to shed water aV)lay from the structure supported Where existing

obs1ructions prevent the construction 01 foundations as shown on the plans then an

effective alternative may be provided subject to the prior approval of the Engineer

amp Ministry of National Development Department of Highways Specification For Highway

Construction 1970 Bangkok Thailand

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33 Conduits fittings and boxes

Copduits fittings and boxes shall be providsd and installed in accordance

with the provisions of Section 511 of these Speoifications except that chemically stable

tough plastic conduits fittings and boxes aocording to samples previously approved by

the Engineer will be permitted providing thet they do not soften when exposed to high

ambient temperature

The contractor may use alarger size of conduit than that specified at no

extra charge if he wishes but in this case the entire run shall be of the same size No

reducing touplings will be permitted

When metal conduits ara used cuts shall be made square amp11d true and all

couplings shell Ie screwed up until the ends of the conduits are brought together in order

to proVide a good electrical contact throughout The threads on all ferrous metal oonduits

bullsh8l1 be painted with rusT preventing paint before couplings are made up Where themiddot

coating on ferrous metal conduit has been dam~ged In handHng such damaged places

shall be painted with rust prevanting paint before installation

All conduit ends shall be threaded and capped until wiring is started When

caps are removed the threaded ends shall be provided with approved conduit bushings

Conduits shall be laid to a depth of not less than 50 centimeters below

pEIVed footwalks and medians and not less the 75 centimeters below the roadway

surface The location of all conduits at curb lines shall be marked by means of a Y at

laaat 10 centimeters high incised in the face of the curb directly above the conduit

Conduit terminating in iii standards cabine1s or pedestals shaH extend at least 5

C9Iltimeters vertically above the bottom of the box Such conduit shall be sloped towards

the top of the box to facilitate pulling Conduit entering the bottom of the box shall enter

in the direction of the run

16

34 Pull boxes or Junction Boxes

Pull boxes shall be installed as shown on the plans and in any case at not

more than 00 meters intellals The contractormiddotmay install additional pull boxes without

extra charge jf he wishes Pull bo)(es shall be of reinforced concrete not less than 10

centimeters thick and may be of approved pre-cast deSign Reinforced concrete covers

acoured by two recessed brass bolts shaff be used on faatwalks the covers baing

inscribed Street Ughting on the outside Under the roadway covers shall be of steal or

oast iron inscribed as specified middotabove andlaid in II suitable concrete footing to withstand

trecffic loads Metal covers shall be effectivalr earthed to an earthing rod inside the box

Tops of puUboxes ~Ilan beeffectivoaly level with the slrfOunoing paved areas whether

footwslk or roadway but in unpaved areas the tOpl of pull boxes shall be buried 30

oentimeters below groul1d level The bottom of pull boxes shall be bedded in sand and

cement or crushed rock Permanent makers shall be provided and erected

toshow the position of all pull boxes

35 Tasting

A funotional test shari be made on completion of the work n order to

demonStrate thet every part of the equipment and installation fUllctionS as intended and

specJfled This test shall consist of not less ~a~ five nights continuous and satisfaatOlY

operation If any defects or unsatisfactory operation are revealed this condition shalf be

oorrected imd tne test continoued until the required five nights of satisfaotory opera~ion

have been performed

Prior to the functional test tlie contractor shaff carry out thefollowing

tests to the entire satisfaction of the Engineer

1) Each circuit shall be iested for oontinuity

2) Each circuit shall be tested for cething

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17

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3) A m~gger test shall be made between eaoh cirouit and eart) The

Insulation fesistance shall be shown to be at least that specified within the relevant

codes

4) The distribution horizontal illumination valve of specified spacing in eaoh

code item in rale 6flux measured between two iuminair as avery two meters along

longitudinal and transverse road way line are essentially measured to show maxmean

min illuminati and uniformity ratios

Uniformity ratio minimum illumination average illumination

= not less than 126

and maximum illumination

minimum illumination

not more than 61

5) Rainproof Test

The lantern under test shall be mounted in its normal orientation on en

adjustable sUpPOrt as shown in fig 1 so that the fitting is near the center of the arc

desoribed by 1he oscillating tuba

After being switched on for one hour the lantern shllil be subjected to II

spray of water at a temperature not exceeding 200 C and ilt e pressure of approximately

67 Ibsin2 104 kgscm2i the tube being oscillated so as to describe an angle of SO

degrees from the vertical and in both directions from it This treatment shall be continLllld

for 20 nilnutes the fitting being switcher off after 10 minutes

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18

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At tha end of this test there shall be to damage to the lamp or enclosure

and no visible evidence of water having aocumulated it the fitting

04 rnm dlo hDln

Fig Apparatus for rainprooftest

On the completion of testing the contractor shall supply to the engineer

three copies of as buill plans and circuitdiagrams whicn shall clearly indicated any

modifications which have been made to the original design

4 Measurement

41 Unless a Bill of quantities is provided thjs item will not be measured and payment

shall be made one lumpsum basic

42 When a Bill Of Quantities is provided measurements shall made on the items detailed

In the Sill of quantities completed accepted and neesured in place The unit of

measurement for each item shall be the unit of measurement shown in the Bill of

Ouentitias

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19

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5 Payment

51 The lump sum payment for the street lighting installation shall be full compensation

for furnishing ell materials labour equipment tools supervisiorl testing and incidentals

neossary to complete the work inoluding any necessary backfill foundations restoration

of footwalk roadway curbing and appurtenances damaged or destroyed during

construction The payment shall also cover the cost of design where this Is called for

The ILlmp sum paymEmt shall be deemed to include full compensation for

all additional materials and work not shown on Ihe Drawings or specified which are

nesessary to complete the installation

62 The work measured as provided in 42 shall be paid at Ihe contraot unit price for eacl1

item such price and payment constituting flln compensation for aU materials labour

equipment tools and incidentals nseded to complete the work All materials Bnd work

necessaJY for satisfactory completion of the installation which are not specifically

mentioned in the Bilt of quantities shall be deemed to be included in the items shown

corw~ors 6 Information to be supplied by bidtfelS

61 catalogs at electrioal components lanterns ballast etc

62 Plans and circuit diagrams ground rod connection diagram

S3 Photometric data

631 Utilisation Curve

632 Isoc8ndala diagram bull

633 Horizon~81 isofootcandle diagram

634 Polar light distribution curvs

64 Cataisl of columns BraCKets Base Plates concrete foundations

20

7 Other details of steel columms not mentioned above should comply with British

Standard 1840 1960 The decision shall be made by the Department

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135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

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bull 400W bull 422 Watt

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Page 5: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

7 Other details 2Q

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I GENERAL SPECIFICATION FOR STREET LIGHTING I i

I 1 General

11 Description

This work shall consist of the supply of all lanterns complete brackets

columns and other supporting devices bases cables switchgear and all necessary

ancillary equipment together with the transportation storage assembly erection

connection and testing at the same in order to supply 2 complete street lighting system

in accordanqe with the details shown on the plans and as specified herein and in the

Special Provisions if any Design of the system shall be included

middot12 Responsibifity formiddotDesign arid Materialsmiddot

The Contractor shall be solely responsible for the adequate design and tl-

co-ordinated functioning of all goods and construction furnished under this contract All

the component parts shall be designed so as to ensJre their proper co-ordinated

functionin and operation All equipment shall be of the makers standard models and

shall include all recent improvements in design and materials All materials used in

manufacture and construotion shall be of high quality and fully in accordance with the

beat modern practice

The equipment offered and the work done shall be suitable for continue

trouble-free operation under adverse climatic conditions of heavy rain high humidity ood ~

intense sunlight The equipment must be able to withstand over long periods ambient c

tempratyr9s varying from a normal of 4deg C to a maximum of 500 C i_

All materials used in themanufacture and construction shall be frBe fron

defects and shall be made having proper regard for safety and in strict accordance wit

all the relevant requirements and regulations of the Electricity Supply Authority

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13 Compliance with Manufactures Specifications

Tha Ccntractor shall ensure that the equipment and parts used will be

entirely suitable for t~evvork to be performed and that they will be manufaotured to

proper clearances and fit He shall further ensure that the loading of equipment will under

all normal circumstances not exceed the maximum laid dawn at agreed in writing by the

manufacturer

The Contractor shall be responsible for the inspection of all equipment and

parts before their inoorporation in the works to ensure that they comply with the

condrtlons of the oontract and that they are not defective In Ilny way as regards materiels

or workmanship should any such noncompllance or dafectsbe found during the

inspection the Contractor shall correct or cause to be corrected sich nonmiddotcompliance lnd

defects all at the Contraotors expense and to the satisfaction of the Engineer

14 Maintenance Period

All repairs and replacements required during the Maintenance Period shall

be carried out with despatch and an adequate supply of spares shall be availabad for this

purpose (See also clause 10)

15 ElectricitySupply

The Contractor shall carry out negotiations with the Electricity Supply

Authority concerned an behalf of the Department of Highways for permanent electricity

supply to the installation Bnd any costs associated with obtaining this supply shall be

included in the contract rates The Contractor f1ust ensure that the equipment supplied

will function correctly at the supply voltage and must allow for normal variations and

surges

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16 Igtefinitions

Unless speCifically defined herein definitions shall be as given In British Standard

892 1967 Glossary of Highway Engineering Terms and in British Standard

I Code of Practice CP 1004 Street Lighting both as amended at the time of Tender

a) Lantern A housing for one or more lamps comprising the body and

I any refractor refleotor diffuser or enclosure associated with the lamp

or lamps

bl Owooch The distance measured horizontally between the centre of a

fantern mounted on a bracket and the centre of the column or well

face

cJ QIflrhang The distance measured horizortally between the centre of aI fantam and the adjacent edge of the pavement

d) Mounting Height The vertical distance betWeen the centre of the

lantern and the surface of the pavement

e) Spacing The distance measured parallei to the centre ine of the road

between successive lanterns In a staggered arrangement this

distance is measured parallel to the centre line from the centre of a

lantern on one side of the road to the centre of the next lantern on

the opposite side

I) aaam That portion of the light output of the lantern contained by the

solid angle subtended at the effective light oentre of the lantern

containing the maximum intensity but no intensity less than 90 of

the maximum intensfty

g) Iumjoous Flux The light given by a light source of lantern or received

by a surface irrespective of the direction in which it is distributed

The unit of luminous Flux is the Lumen LM)

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hI j ower Hemispherical FIx or Downward FIIIX The luminous Flux

emitted by a lantem in all directions below the horizontal

il reek Intensity Ratio The ratio of the maximum Intensity to the mean

hemispherical intensity of Ihe light emitted below the horizontal

j) Mean Hemispherjoallnlensi1yen The downward flux divided by 628

(This is the average intensity in the lower hemisphere

k) Intensity Ralio The ratio of the actual intensity in any direction of a

lantem to the mean hemispherical intensity

I) luminous Inleosltyen The light giving power of a lantern in any particUlar

direction The unit of luminous intensity is the Candela (cd) Beam

Center lsocandela Curve Isocendela diagram Polar Curve

mJ Beam center A direction midway between the directions for ~hich

the intensity is 90 percent of the maximum in a vertical plane through

the IOOximum and on a conicsl surfaoe throught the maxlmum

n)lsQcandala curve A curve traced on an imaginary sphere with the

source at its center and joining all tha poillts corresponding to those

direotions in which the luminous intensity is the same or Ii plane

projection of this curve

0) ISQCodea diagram An array of isocandela ourves

p) Polar Curve Curve of light distribution using polar co-ordinates

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2 Materials and Equipment f

f 21 Lanterns ~

~ The supplier must submit the guaranteed letter of these BobY alluminailll r shall be non-corrosive light alloy metal colour if applied shall be stove enamelled finish in

gray or aluminum shadet Reflector if used shall be mirror type and made of smdized aluminum 1

1 ~

j sheet Gasket shall be applied on every par where insact is expected to enter into lemp

1 compartment including that at sllpfltter collar The gasket used shall be non-aging andt heat-resistant type transverse and longitude cross~iection drawing of the lIsminair ecaled

11 shall be furnished with the quotation

Refractor [enclosing bowl) if made of the transparent acrylic will not

produce less output due to colour changing within first 6 years of servloe

a) Lanterns she be of the cut-ltlff or thll samimiddotcut-off type as shown on

the Drawings or as specified in the Spacial Provisions Non-cutmiddotoff

lanterns shillI not be used

bJ Unless otherwis~ specified the mounting height shall be not less than

75 meters (or 250) nor more 1han 12 meters (or 400)(

c) Where there is no speed limit on the road or where thare is II speed

limit of more than 60 kilometers per hour the minimum clearance

between columns and the edge of the pavement shall normallv be

16 meters but where this is not reasonably attainable such as

1 bridge locations and cther rejtriotad areas the minimum olearance i i bull i may with the previous permission of the angineer be reduced 10 10~1

lt Z~ meter

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WherB there is a speed limit of less than 60 kilometers per hour the

minimum otearance between columns and the edge of the pavement should be 16

meters but this may be reduoed to

050 meter for crossfaJis of not more than 1 in 40 towards the curb

OSO meter for crossfalls of between 1 in 40 and 1 in 24 towards the

ourb

075 meter for crcssfalls of more than 1 in 24 towards to ourb with the

previous permission of the Engineer

d) Each lantern should normally di rect two beams along the length of

the road rhepolar curves of the lenterns in both horizontal and

vertioal planes snould be smooth and free from any abrupt

variations so that the luminous intensity diminishes smoothly and

progressively from its maximum For centrally mounted lanterns the

beams should ba approximately axial for lanterns mounted at the

sides of tns roadway the maximum toe-in of the beam will be 160

Adequate but not excessiVE Ught should be dirlided towards tha ourbs

and outer edge of the road Wliere area illumination is required using

high mast righting these provisions she not necessarily apply

il) For out-off lanterns the beam should 00 in a direotion about 650 from

the downward vertical The peak Intensity ratio shall be between 20

bull and 40 the intensity ratio in the zone [JO to 3()O below a horizontal

plene through the lantern shali be between 03 and 20 An Intensity

ratio of 12 shall lie between elevations of 72deg imd 7Bofrom the

downwsrd vertical in the vertical plane parallel tomiddotthe lIJ(is of ths

roadway and the horizontal intensity ratio in the same plane shall be

not greater than 015

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f) In the case of semi-out-off lanterns the beam should lie in a direotion

about 750 from the downward vertical The peak intensity ratio shall

be between 18 and 40 The intensity ratio in the 00 to 300 zone

below a horizontal plane thrOJgh the lantern shall be between 03 and

17 An intensity ratio of 12 shall ie between elevations of 780 and

840 from the downward vertical in the vertical plane paralled to the

axis of the roadway and the horizontal intensity ra1io in the same

plana shall be not greater than 06 except that in the case of sodium

lamps the intensity ratio 01 12 shall lie Similarly between BOO and

860 and the horizontal intensity ratio in the same plane shall not

exceed 07

gl The siting of lanterns shall be in accordance with the following table

which gives minimum required illumination Particular care shall be

taken with the siting of lanterns on bends and surnmit vertical ourves

At junctions and roundabouts lantern spacing shall be designed so as

to give at least the minimum illumination required by the following

tables and also lanterns shan be spaced and sited where possible

so as to delineate the cour39 of the roadway plainly to road ussr

approaching from any normal direction without any possible mislending

impressions

The level of illuminetion provided as road junctions and roundabouts bull i

shall be at least as high as that on any of the approach roads and in

the case of roundabouts a minimum Jeve middotof illumination at any curb

Hne of 10 lUmens per square meter shall be provided

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Required minimum Average Horizontal lruminatlon

in lumens per Square Meter (Lumens per Square Footl

Central-Urban Sub-Urban Rural

Areas Areas Areas

High Grade MotorWays 215 (201 150 (14) 1075 (10)

At J~notions 215 (2Q) 215 (20) 150 (14) jgt Main Routes 215 (20) 130 112) 97 (09)

I Seo90dary Routes 130 112) 97 (09) 65 (06)

I Local Roads 97 (09) 65 (06) 21 (Q2bullbullI (Residentiaj

areas only)

The Contractor shalt certify that the design of the installation has been

done in accordanoe with American Standard Practice for Roadway lighting (D 121 shy

1~l pubished by the lIIumnating Engineering Society 345 East 47th Street New York

or in accordance with British Standard Gode of practice CP 1004 of 1963 Street lighting

Published by the British Standards Institution 2 Park Lane London WI except in so tar

8S these have baen varied by the provisions of this speoification or any special provisions

22 Wiring end Switching

The Wiring and switching supplied for control of lanterns (each device bull

controlling B group of lantern) shall be of a type approved by and agreed with thei

Electricity Supply Authority Unless otherwise specified photoelectrio relayswitching shall

be used

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23 Columns and Brackets

ltII Columns shall be of steei construction ai1d shail consist of tapered

round hollow shafts with anchor bases Each column shall be provided with a suitable

cable slot and a weatherproof service door fitted with a tamperproof lock All locks shall

be of the same pattern and six keys shall be provided for them

b) A non-hygroscopic mounting bord cqmposed of electrically insulating

material shall be fitted in an easily acoessibfe position inside the column and ehall be of

c suitable size to take all necessary electrical equipment Adjacent to this mounting bosrd

there shall be prollided on the inside of the column tWo stainless steel studs not less

than 4 centimeters long nor less than 8 millimeters diameter and compi~t8 with stainless

steel look nuts and washers for use as earthing connections

c) Brackets to provide the required Outreach shall be of sufficientlv strollfij ~

bull construction to support the lantern under all normal conditions without significant 1

movement and shall be provided with suitable fittingsto take thelantems When in

positioo bralt~ts shall be inclined upwards at an angla of approximately 1SO to the

horizonaIand shall be fixed to their supports by suitable welding fastenings or wall

C plates

dl Columns and brackets shall be strucrursl steel having the following

mechanical properties

bull Thiokness of sheet steel (min) 4mm

~ Ultimate TeruJlie Strength (min) 41 kgQ1m2 Imiddot

bull Yleld Point (min) 25kgmm2

- Elongation (min) 21

oj Straightness That part of the column above the ground shtll not deviate

from straightness by more than an amount calculatad at II rate of 21 mm per meter of

column length ~

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24 High Mast Lighting

Mounting heights from 20 meters and more shail be High Mast

a) Columns carrying high mast lighting shall be designed to permit the

whole of the lantern carriage to be easily s6fely and quickly lowered to ground level for

maintenance works The columns shail bee designed in accordanoe with British Standard

449 or other internationally aocepted standard for design of structural steelwork in

buildings except that the temporary horizontal defleotion of the top of the column may to

up to 75 of the height above ground In calculating the tending moment at ground

level due to wind load it shall be assumed that the wind speed at B point ten meters

above ground level is 60 kjiometers per hour and the design of the column hall be such

that wind excited oscillations are damped as much as possible Adequate allowance shalf

be Ij1sde for the stresses produced by 6uoh oscllationslt Details shall be given of the

vertical and horizontal load Bnd the bending moment at the foundations

bl The base plate shall ba free from laminations and all dimensions of the

base plate shall be provided including details of the holding down belts A cable entry

hole of not less than 30 cen1imeters diameter shalf be prCNided centrally in each base

middot c plate and the bottom of lile maat shall pass through the base plate and be welded onC

both sides An altsmstiv9 construotion of equal strength may be accepted by the

Engineer but a butt weld on the base plale will not be accepted

Each holding down belt shall be tensioned to the design value and within

the maintenance period the bolts shall be checked and retightened 8S necesllsry after

Whioh the nuts shalf be repainted

oJ The columns shall be deli~ered to the site in the minimum practicable

number of lengths Any joints necessary shall be positioned as near the top of the

Qotumns as possible

11

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d) The lantern carriage shail support the designed number of lanterns

Vithiout significant sway or movement and shall be capable of supporting these lanterns

II cradle with two men for maintenance work The lantern carriage shall be protected

prevent damage to the painted surface of the columns rotation of the carriage during

6IgtIIIJ and lowering shall be prevented and correct location when raised shall be ensured

some positive means It sha be possible to remove the lantem carriage without

illwerirl1l the column

el The lantern carriage shall be raised and lowered by a self sustaining

capable of being operated either by hand or by a portable electrically operated tool

middotIt shall be possible to lock the winch in any position by a simple robust and easily

operated mechanism The worm gear shall have a ratio of at Ieast 201

f) The winch shall have removable handles and it shall be mounted within

the base compartment at a convenient Vcrking height The opening in ths column shall

be of sufficient size to allow proper operation and maintenance of the winch mechanism

A weatherprClOf lab1 shall be fixed in an obvious position wihtn the column base giving

a full list of allmiddot lubricating points on the winch and other mechanism and detail of

recommened lubricants Winches fixed inside the column shall bs provided with a

substantial cover to fully protect them failing dirt and dust

gl A sufficient number of turns of the hoisting cable shall be left on the

winch drum when the carriage is fully lowered to ensure that the cable anchorage on the

drum do~s not take the full load of the carriage at any time

hI the last 30 centimeters of travel to t~e fully raised position of the

carriage shall be by hand operation and for lhis purpose either a limit switch shall be

provided to cut off the power supply to the portable electric tool at the appropriate time

or else some form of indication shall be provided to indicate when the carriage is 30

centimeters from the fully raised position

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i The winch cable shall be of stranded stainless steel wires and shall have

sufficient capacity to carry safely the lantern carriage complete with lanterns and a cradle

with two men attached thereto Great oare shall be taken during installation to ensure

that the hoisting cables do not twist or kink and any set twist Of kink shall be sufficient

rflsson for the rejection of that cable

j) All parts of the raising and loWering mechanism which are inaccessible

after erectlon of the oolumns shall be adequately protected against moisture dirt and

corrosion Where neoessary pulleys shall be fitted with shields to prevent the winch

cable becoming displaced Pulleys for electrioal cables shaH be of sufficient dimameter

that the cablll will not be bent to a smaller radius then that permitted by loca relulations

or those of the British Institutiof of Electrical Engineers 14th Edition Where necessary

for continued tfOllbe free operation metal parts shall be of stainless steel or other

approved non-corrodible material

kl When pewsr tool operation is used a suitable power outlet shall be

providad and the operalor shall be adequately safeguarded against any electrical shocks

rhe power tool shall preferably be designed to work on a reduced voltagee end in this

OBse a suitable approved type of translormar shall be provided The power too shall be

designed so that continuOlls operation will cause no harmful effects on either the winch

Of the tool and in the event of power failure the winch shall be self locking Conversion

from power to hand operation and vice versa shall be quick and easy and shall not require

spacial tools Full imOfmallon on tha type of power tool proposed shall be given with the

lender

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25 Protection Against Corrosion

Unless otherwise spceified columns bracket arms and brackets shall be

protected against corrosiOil eithsr by painting or galvanizing as follows

261 Painting

sl Cou~ns and masts shall be treated internalty with hot asphalt under

high pressure so as to givB a complete arid unbroken asphaltic coVering or other approved

anti-corrosion treatment shalt be applied to give at least equally good protection Bas63

shall be similarly treated up to a level of 25 centimeters above ground ievel

b) Before delivery to the site columns masts steelltracKets and external

fitting shall have all external welds ground down ilnd all external surfaces cleaned by shot bull

blasting or other approved method to a whitsmetal finish free of all signs of rust

Immediately folJowil1g t~is treatment the items ahall be painted with two coats of tropical

red lead undercoat followed by two coats of aluminium paint or they shall be treated in a

similar and hot tass affective manner aoceptable to the Enginesr to present subsequent

oorrosion After Grection ali imperfections and damage shall be made good to the

Engineers satisfaction and the items shall be given a final coat of all aluminium paint

262 Galvanizingmiddot

a) Before delivery to the site columns masts steel brackets and extemal

fittings shall have all extemal welds ground down Poles and other ferous materials shall

be galvanized both inside and outside by hot dipped in accordance with ASTM A 625-76

Weight of zinc coating shall not be less han 550 gram per square meter

14

b) Base of columns both inside and outside shali be coated with bituminous paint

up 10 a level o 25 centimeters above the base plate

3 Construction Methods

31 Excavation and Reinstatement

Excavation for cable or conduit laying or for foundations and reinstatement

shall be Darned out in accordance with thaprovisions of Section 25 (Sub-Clause 2632)

of 1hampS6 specifioations Reinstatement shall be suoh that the surface is restored to at

east its original standard

32 Concrete Work

All necessary foundations and footings or other concrete work shall be

carried out in acoordance with Sections 61 (sub-Clause 5112) and 02 of these

specifications Unless otherwise specified on the Drawings or in the Speoial Provisions

ooncrete shall be olass 8 Foundations shail be placed in one operation except that the

top 5 oentimetars may be placed after the superimposed structure is In position The

el(posed portions of foundations shall be formed to present a neat and tidy appearance

and sloped to shed water aV)lay from the structure supported Where existing

obs1ructions prevent the construction 01 foundations as shown on the plans then an

effective alternative may be provided subject to the prior approval of the Engineer

amp Ministry of National Development Department of Highways Specification For Highway

Construction 1970 Bangkok Thailand

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33 Conduits fittings and boxes

Copduits fittings and boxes shall be providsd and installed in accordance

with the provisions of Section 511 of these Speoifications except that chemically stable

tough plastic conduits fittings and boxes aocording to samples previously approved by

the Engineer will be permitted providing thet they do not soften when exposed to high

ambient temperature

The contractor may use alarger size of conduit than that specified at no

extra charge if he wishes but in this case the entire run shall be of the same size No

reducing touplings will be permitted

When metal conduits ara used cuts shall be made square amp11d true and all

couplings shell Ie screwed up until the ends of the conduits are brought together in order

to proVide a good electrical contact throughout The threads on all ferrous metal oonduits

bullsh8l1 be painted with rusT preventing paint before couplings are made up Where themiddot

coating on ferrous metal conduit has been dam~ged In handHng such damaged places

shall be painted with rust prevanting paint before installation

All conduit ends shall be threaded and capped until wiring is started When

caps are removed the threaded ends shall be provided with approved conduit bushings

Conduits shall be laid to a depth of not less than 50 centimeters below

pEIVed footwalks and medians and not less the 75 centimeters below the roadway

surface The location of all conduits at curb lines shall be marked by means of a Y at

laaat 10 centimeters high incised in the face of the curb directly above the conduit

Conduit terminating in iii standards cabine1s or pedestals shaH extend at least 5

C9Iltimeters vertically above the bottom of the box Such conduit shall be sloped towards

the top of the box to facilitate pulling Conduit entering the bottom of the box shall enter

in the direction of the run

16

34 Pull boxes or Junction Boxes

Pull boxes shall be installed as shown on the plans and in any case at not

more than 00 meters intellals The contractormiddotmay install additional pull boxes without

extra charge jf he wishes Pull bo)(es shall be of reinforced concrete not less than 10

centimeters thick and may be of approved pre-cast deSign Reinforced concrete covers

acoured by two recessed brass bolts shaff be used on faatwalks the covers baing

inscribed Street Ughting on the outside Under the roadway covers shall be of steal or

oast iron inscribed as specified middotabove andlaid in II suitable concrete footing to withstand

trecffic loads Metal covers shall be effectivalr earthed to an earthing rod inside the box

Tops of puUboxes ~Ilan beeffectivoaly level with the slrfOunoing paved areas whether

footwslk or roadway but in unpaved areas the tOpl of pull boxes shall be buried 30

oentimeters below groul1d level The bottom of pull boxes shall be bedded in sand and

cement or crushed rock Permanent makers shall be provided and erected

toshow the position of all pull boxes

35 Tasting

A funotional test shari be made on completion of the work n order to

demonStrate thet every part of the equipment and installation fUllctionS as intended and

specJfled This test shall consist of not less ~a~ five nights continuous and satisfaatOlY

operation If any defects or unsatisfactory operation are revealed this condition shalf be

oorrected imd tne test continoued until the required five nights of satisfaotory opera~ion

have been performed

Prior to the functional test tlie contractor shaff carry out thefollowing

tests to the entire satisfaction of the Engineer

1) Each circuit shall be iested for oontinuity

2) Each circuit shall be tested for cething

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17

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3) A m~gger test shall be made between eaoh cirouit and eart) The

Insulation fesistance shall be shown to be at least that specified within the relevant

codes

4) The distribution horizontal illumination valve of specified spacing in eaoh

code item in rale 6flux measured between two iuminair as avery two meters along

longitudinal and transverse road way line are essentially measured to show maxmean

min illuminati and uniformity ratios

Uniformity ratio minimum illumination average illumination

= not less than 126

and maximum illumination

minimum illumination

not more than 61

5) Rainproof Test

The lantern under test shall be mounted in its normal orientation on en

adjustable sUpPOrt as shown in fig 1 so that the fitting is near the center of the arc

desoribed by 1he oscillating tuba

After being switched on for one hour the lantern shllil be subjected to II

spray of water at a temperature not exceeding 200 C and ilt e pressure of approximately

67 Ibsin2 104 kgscm2i the tube being oscillated so as to describe an angle of SO

degrees from the vertical and in both directions from it This treatment shall be continLllld

for 20 nilnutes the fitting being switcher off after 10 minutes

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18

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At tha end of this test there shall be to damage to the lamp or enclosure

and no visible evidence of water having aocumulated it the fitting

04 rnm dlo hDln

Fig Apparatus for rainprooftest

On the completion of testing the contractor shall supply to the engineer

three copies of as buill plans and circuitdiagrams whicn shall clearly indicated any

modifications which have been made to the original design

4 Measurement

41 Unless a Bill of quantities is provided thjs item will not be measured and payment

shall be made one lumpsum basic

42 When a Bill Of Quantities is provided measurements shall made on the items detailed

In the Sill of quantities completed accepted and neesured in place The unit of

measurement for each item shall be the unit of measurement shown in the Bill of

Ouentitias

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19

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5 Payment

51 The lump sum payment for the street lighting installation shall be full compensation

for furnishing ell materials labour equipment tools supervisiorl testing and incidentals

neossary to complete the work inoluding any necessary backfill foundations restoration

of footwalk roadway curbing and appurtenances damaged or destroyed during

construction The payment shall also cover the cost of design where this Is called for

The ILlmp sum paymEmt shall be deemed to include full compensation for

all additional materials and work not shown on Ihe Drawings or specified which are

nesessary to complete the installation

62 The work measured as provided in 42 shall be paid at Ihe contraot unit price for eacl1

item such price and payment constituting flln compensation for aU materials labour

equipment tools and incidentals nseded to complete the work All materials Bnd work

necessaJY for satisfactory completion of the installation which are not specifically

mentioned in the Bilt of quantities shall be deemed to be included in the items shown

corw~ors 6 Information to be supplied by bidtfelS

61 catalogs at electrioal components lanterns ballast etc

62 Plans and circuit diagrams ground rod connection diagram

S3 Photometric data

631 Utilisation Curve

632 Isoc8ndala diagram bull

633 Horizon~81 isofootcandle diagram

634 Polar light distribution curvs

64 Cataisl of columns BraCKets Base Plates concrete foundations

20

7 Other details of steel columms not mentioned above should comply with British

Standard 1840 1960 The decision shall be made by the Department

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135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

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bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

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Page 6: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

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I GENERAL SPECIFICATION FOR STREET LIGHTING I i

I 1 General

11 Description

This work shall consist of the supply of all lanterns complete brackets

columns and other supporting devices bases cables switchgear and all necessary

ancillary equipment together with the transportation storage assembly erection

connection and testing at the same in order to supply 2 complete street lighting system

in accordanqe with the details shown on the plans and as specified herein and in the

Special Provisions if any Design of the system shall be included

middot12 Responsibifity formiddotDesign arid Materialsmiddot

The Contractor shall be solely responsible for the adequate design and tl-

co-ordinated functioning of all goods and construction furnished under this contract All

the component parts shall be designed so as to ensJre their proper co-ordinated

functionin and operation All equipment shall be of the makers standard models and

shall include all recent improvements in design and materials All materials used in

manufacture and construotion shall be of high quality and fully in accordance with the

beat modern practice

The equipment offered and the work done shall be suitable for continue

trouble-free operation under adverse climatic conditions of heavy rain high humidity ood ~

intense sunlight The equipment must be able to withstand over long periods ambient c

tempratyr9s varying from a normal of 4deg C to a maximum of 500 C i_

All materials used in themanufacture and construction shall be frBe fron

defects and shall be made having proper regard for safety and in strict accordance wit

all the relevant requirements and regulations of the Electricity Supply Authority

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13 Compliance with Manufactures Specifications

Tha Ccntractor shall ensure that the equipment and parts used will be

entirely suitable for t~evvork to be performed and that they will be manufaotured to

proper clearances and fit He shall further ensure that the loading of equipment will under

all normal circumstances not exceed the maximum laid dawn at agreed in writing by the

manufacturer

The Contractor shall be responsible for the inspection of all equipment and

parts before their inoorporation in the works to ensure that they comply with the

condrtlons of the oontract and that they are not defective In Ilny way as regards materiels

or workmanship should any such noncompllance or dafectsbe found during the

inspection the Contractor shall correct or cause to be corrected sich nonmiddotcompliance lnd

defects all at the Contraotors expense and to the satisfaction of the Engineer

14 Maintenance Period

All repairs and replacements required during the Maintenance Period shall

be carried out with despatch and an adequate supply of spares shall be availabad for this

purpose (See also clause 10)

15 ElectricitySupply

The Contractor shall carry out negotiations with the Electricity Supply

Authority concerned an behalf of the Department of Highways for permanent electricity

supply to the installation Bnd any costs associated with obtaining this supply shall be

included in the contract rates The Contractor f1ust ensure that the equipment supplied

will function correctly at the supply voltage and must allow for normal variations and

surges

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16 Igtefinitions

Unless speCifically defined herein definitions shall be as given In British Standard

892 1967 Glossary of Highway Engineering Terms and in British Standard

I Code of Practice CP 1004 Street Lighting both as amended at the time of Tender

a) Lantern A housing for one or more lamps comprising the body and

I any refractor refleotor diffuser or enclosure associated with the lamp

or lamps

bl Owooch The distance measured horizontally between the centre of a

fantern mounted on a bracket and the centre of the column or well

face

cJ QIflrhang The distance measured horizortally between the centre of aI fantam and the adjacent edge of the pavement

d) Mounting Height The vertical distance betWeen the centre of the

lantern and the surface of the pavement

e) Spacing The distance measured parallei to the centre ine of the road

between successive lanterns In a staggered arrangement this

distance is measured parallel to the centre line from the centre of a

lantern on one side of the road to the centre of the next lantern on

the opposite side

I) aaam That portion of the light output of the lantern contained by the

solid angle subtended at the effective light oentre of the lantern

containing the maximum intensity but no intensity less than 90 of

the maximum intensfty

g) Iumjoous Flux The light given by a light source of lantern or received

by a surface irrespective of the direction in which it is distributed

The unit of luminous Flux is the Lumen LM)

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hI j ower Hemispherical FIx or Downward FIIIX The luminous Flux

emitted by a lantem in all directions below the horizontal

il reek Intensity Ratio The ratio of the maximum Intensity to the mean

hemispherical intensity of Ihe light emitted below the horizontal

j) Mean Hemispherjoallnlensi1yen The downward flux divided by 628

(This is the average intensity in the lower hemisphere

k) Intensity Ralio The ratio of the actual intensity in any direction of a

lantem to the mean hemispherical intensity

I) luminous Inleosltyen The light giving power of a lantern in any particUlar

direction The unit of luminous intensity is the Candela (cd) Beam

Center lsocandela Curve Isocendela diagram Polar Curve

mJ Beam center A direction midway between the directions for ~hich

the intensity is 90 percent of the maximum in a vertical plane through

the IOOximum and on a conicsl surfaoe throught the maxlmum

n)lsQcandala curve A curve traced on an imaginary sphere with the

source at its center and joining all tha poillts corresponding to those

direotions in which the luminous intensity is the same or Ii plane

projection of this curve

0) ISQCodea diagram An array of isocandela ourves

p) Polar Curve Curve of light distribution using polar co-ordinates

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2 Materials and Equipment f

f 21 Lanterns ~

~ The supplier must submit the guaranteed letter of these BobY alluminailll r shall be non-corrosive light alloy metal colour if applied shall be stove enamelled finish in

gray or aluminum shadet Reflector if used shall be mirror type and made of smdized aluminum 1

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j sheet Gasket shall be applied on every par where insact is expected to enter into lemp

1 compartment including that at sllpfltter collar The gasket used shall be non-aging andt heat-resistant type transverse and longitude cross~iection drawing of the lIsminair ecaled

11 shall be furnished with the quotation

Refractor [enclosing bowl) if made of the transparent acrylic will not

produce less output due to colour changing within first 6 years of servloe

a) Lanterns she be of the cut-ltlff or thll samimiddotcut-off type as shown on

the Drawings or as specified in the Spacial Provisions Non-cutmiddotoff

lanterns shillI not be used

bJ Unless otherwis~ specified the mounting height shall be not less than

75 meters (or 250) nor more 1han 12 meters (or 400)(

c) Where there is no speed limit on the road or where thare is II speed

limit of more than 60 kilometers per hour the minimum clearance

between columns and the edge of the pavement shall normallv be

16 meters but where this is not reasonably attainable such as

1 bridge locations and cther rejtriotad areas the minimum olearance i i bull i may with the previous permission of the angineer be reduced 10 10~1

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WherB there is a speed limit of less than 60 kilometers per hour the

minimum otearance between columns and the edge of the pavement should be 16

meters but this may be reduoed to

050 meter for crossfaJis of not more than 1 in 40 towards the curb

OSO meter for crossfalls of between 1 in 40 and 1 in 24 towards the

ourb

075 meter for crcssfalls of more than 1 in 24 towards to ourb with the

previous permission of the Engineer

d) Each lantern should normally di rect two beams along the length of

the road rhepolar curves of the lenterns in both horizontal and

vertioal planes snould be smooth and free from any abrupt

variations so that the luminous intensity diminishes smoothly and

progressively from its maximum For centrally mounted lanterns the

beams should ba approximately axial for lanterns mounted at the

sides of tns roadway the maximum toe-in of the beam will be 160

Adequate but not excessiVE Ught should be dirlided towards tha ourbs

and outer edge of the road Wliere area illumination is required using

high mast righting these provisions she not necessarily apply

il) For out-off lanterns the beam should 00 in a direotion about 650 from

the downward vertical The peak Intensity ratio shall be between 20

bull and 40 the intensity ratio in the zone [JO to 3()O below a horizontal

plene through the lantern shali be between 03 and 20 An Intensity

ratio of 12 shall lie between elevations of 72deg imd 7Bofrom the

downwsrd vertical in the vertical plane parallel tomiddotthe lIJ(is of ths

roadway and the horizontal intensity ratio in the same plane shall be

not greater than 015

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f) In the case of semi-out-off lanterns the beam should lie in a direotion

about 750 from the downward vertical The peak intensity ratio shall

be between 18 and 40 The intensity ratio in the 00 to 300 zone

below a horizontal plane thrOJgh the lantern shall be between 03 and

17 An intensity ratio of 12 shall ie between elevations of 780 and

840 from the downward vertical in the vertical plane paralled to the

axis of the roadway and the horizontal intensity ra1io in the same

plana shall be not greater than 06 except that in the case of sodium

lamps the intensity ratio 01 12 shall lie Similarly between BOO and

860 and the horizontal intensity ratio in the same plane shall not

exceed 07

gl The siting of lanterns shall be in accordance with the following table

which gives minimum required illumination Particular care shall be

taken with the siting of lanterns on bends and surnmit vertical ourves

At junctions and roundabouts lantern spacing shall be designed so as

to give at least the minimum illumination required by the following

tables and also lanterns shan be spaced and sited where possible

so as to delineate the cour39 of the roadway plainly to road ussr

approaching from any normal direction without any possible mislending

impressions

The level of illuminetion provided as road junctions and roundabouts bull i

shall be at least as high as that on any of the approach roads and in

the case of roundabouts a minimum Jeve middotof illumination at any curb

Hne of 10 lUmens per square meter shall be provided

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Required minimum Average Horizontal lruminatlon

in lumens per Square Meter (Lumens per Square Footl

Central-Urban Sub-Urban Rural

Areas Areas Areas

High Grade MotorWays 215 (201 150 (14) 1075 (10)

At J~notions 215 (2Q) 215 (20) 150 (14) jgt Main Routes 215 (20) 130 112) 97 (09)

I Seo90dary Routes 130 112) 97 (09) 65 (06)

I Local Roads 97 (09) 65 (06) 21 (Q2bullbullI (Residentiaj

areas only)

The Contractor shalt certify that the design of the installation has been

done in accordanoe with American Standard Practice for Roadway lighting (D 121 shy

1~l pubished by the lIIumnating Engineering Society 345 East 47th Street New York

or in accordance with British Standard Gode of practice CP 1004 of 1963 Street lighting

Published by the British Standards Institution 2 Park Lane London WI except in so tar

8S these have baen varied by the provisions of this speoification or any special provisions

22 Wiring end Switching

The Wiring and switching supplied for control of lanterns (each device bull

controlling B group of lantern) shall be of a type approved by and agreed with thei

Electricity Supply Authority Unless otherwise specified photoelectrio relayswitching shall

be used

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23 Columns and Brackets

ltII Columns shall be of steei construction ai1d shail consist of tapered

round hollow shafts with anchor bases Each column shall be provided with a suitable

cable slot and a weatherproof service door fitted with a tamperproof lock All locks shall

be of the same pattern and six keys shall be provided for them

b) A non-hygroscopic mounting bord cqmposed of electrically insulating

material shall be fitted in an easily acoessibfe position inside the column and ehall be of

c suitable size to take all necessary electrical equipment Adjacent to this mounting bosrd

there shall be prollided on the inside of the column tWo stainless steel studs not less

than 4 centimeters long nor less than 8 millimeters diameter and compi~t8 with stainless

steel look nuts and washers for use as earthing connections

c) Brackets to provide the required Outreach shall be of sufficientlv strollfij ~

bull construction to support the lantern under all normal conditions without significant 1

movement and shall be provided with suitable fittingsto take thelantems When in

positioo bralt~ts shall be inclined upwards at an angla of approximately 1SO to the

horizonaIand shall be fixed to their supports by suitable welding fastenings or wall

C plates

dl Columns and brackets shall be strucrursl steel having the following

mechanical properties

bull Thiokness of sheet steel (min) 4mm

~ Ultimate TeruJlie Strength (min) 41 kgQ1m2 Imiddot

bull Yleld Point (min) 25kgmm2

- Elongation (min) 21

oj Straightness That part of the column above the ground shtll not deviate

from straightness by more than an amount calculatad at II rate of 21 mm per meter of

column length ~

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24 High Mast Lighting

Mounting heights from 20 meters and more shail be High Mast

a) Columns carrying high mast lighting shall be designed to permit the

whole of the lantern carriage to be easily s6fely and quickly lowered to ground level for

maintenance works The columns shail bee designed in accordanoe with British Standard

449 or other internationally aocepted standard for design of structural steelwork in

buildings except that the temporary horizontal defleotion of the top of the column may to

up to 75 of the height above ground In calculating the tending moment at ground

level due to wind load it shall be assumed that the wind speed at B point ten meters

above ground level is 60 kjiometers per hour and the design of the column hall be such

that wind excited oscillations are damped as much as possible Adequate allowance shalf

be Ij1sde for the stresses produced by 6uoh oscllationslt Details shall be given of the

vertical and horizontal load Bnd the bending moment at the foundations

bl The base plate shall ba free from laminations and all dimensions of the

base plate shall be provided including details of the holding down belts A cable entry

hole of not less than 30 cen1imeters diameter shalf be prCNided centrally in each base

middot c plate and the bottom of lile maat shall pass through the base plate and be welded onC

both sides An altsmstiv9 construotion of equal strength may be accepted by the

Engineer but a butt weld on the base plale will not be accepted

Each holding down belt shall be tensioned to the design value and within

the maintenance period the bolts shall be checked and retightened 8S necesllsry after

Whioh the nuts shalf be repainted

oJ The columns shall be deli~ered to the site in the minimum practicable

number of lengths Any joints necessary shall be positioned as near the top of the

Qotumns as possible

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d) The lantern carriage shail support the designed number of lanterns

Vithiout significant sway or movement and shall be capable of supporting these lanterns

II cradle with two men for maintenance work The lantern carriage shall be protected

prevent damage to the painted surface of the columns rotation of the carriage during

6IgtIIIJ and lowering shall be prevented and correct location when raised shall be ensured

some positive means It sha be possible to remove the lantem carriage without

illwerirl1l the column

el The lantern carriage shall be raised and lowered by a self sustaining

capable of being operated either by hand or by a portable electrically operated tool

middotIt shall be possible to lock the winch in any position by a simple robust and easily

operated mechanism The worm gear shall have a ratio of at Ieast 201

f) The winch shall have removable handles and it shall be mounted within

the base compartment at a convenient Vcrking height The opening in ths column shall

be of sufficient size to allow proper operation and maintenance of the winch mechanism

A weatherprClOf lab1 shall be fixed in an obvious position wihtn the column base giving

a full list of allmiddot lubricating points on the winch and other mechanism and detail of

recommened lubricants Winches fixed inside the column shall bs provided with a

substantial cover to fully protect them failing dirt and dust

gl A sufficient number of turns of the hoisting cable shall be left on the

winch drum when the carriage is fully lowered to ensure that the cable anchorage on the

drum do~s not take the full load of the carriage at any time

hI the last 30 centimeters of travel to t~e fully raised position of the

carriage shall be by hand operation and for lhis purpose either a limit switch shall be

provided to cut off the power supply to the portable electric tool at the appropriate time

or else some form of indication shall be provided to indicate when the carriage is 30

centimeters from the fully raised position

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i The winch cable shall be of stranded stainless steel wires and shall have

sufficient capacity to carry safely the lantern carriage complete with lanterns and a cradle

with two men attached thereto Great oare shall be taken during installation to ensure

that the hoisting cables do not twist or kink and any set twist Of kink shall be sufficient

rflsson for the rejection of that cable

j) All parts of the raising and loWering mechanism which are inaccessible

after erectlon of the oolumns shall be adequately protected against moisture dirt and

corrosion Where neoessary pulleys shall be fitted with shields to prevent the winch

cable becoming displaced Pulleys for electrioal cables shaH be of sufficient dimameter

that the cablll will not be bent to a smaller radius then that permitted by loca relulations

or those of the British Institutiof of Electrical Engineers 14th Edition Where necessary

for continued tfOllbe free operation metal parts shall be of stainless steel or other

approved non-corrodible material

kl When pewsr tool operation is used a suitable power outlet shall be

providad and the operalor shall be adequately safeguarded against any electrical shocks

rhe power tool shall preferably be designed to work on a reduced voltagee end in this

OBse a suitable approved type of translormar shall be provided The power too shall be

designed so that continuOlls operation will cause no harmful effects on either the winch

Of the tool and in the event of power failure the winch shall be self locking Conversion

from power to hand operation and vice versa shall be quick and easy and shall not require

spacial tools Full imOfmallon on tha type of power tool proposed shall be given with the

lender

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25 Protection Against Corrosion

Unless otherwise spceified columns bracket arms and brackets shall be

protected against corrosiOil eithsr by painting or galvanizing as follows

261 Painting

sl Cou~ns and masts shall be treated internalty with hot asphalt under

high pressure so as to givB a complete arid unbroken asphaltic coVering or other approved

anti-corrosion treatment shalt be applied to give at least equally good protection Bas63

shall be similarly treated up to a level of 25 centimeters above ground ievel

b) Before delivery to the site columns masts steelltracKets and external

fitting shall have all external welds ground down ilnd all external surfaces cleaned by shot bull

blasting or other approved method to a whitsmetal finish free of all signs of rust

Immediately folJowil1g t~is treatment the items ahall be painted with two coats of tropical

red lead undercoat followed by two coats of aluminium paint or they shall be treated in a

similar and hot tass affective manner aoceptable to the Enginesr to present subsequent

oorrosion After Grection ali imperfections and damage shall be made good to the

Engineers satisfaction and the items shall be given a final coat of all aluminium paint

262 Galvanizingmiddot

a) Before delivery to the site columns masts steel brackets and extemal

fittings shall have all extemal welds ground down Poles and other ferous materials shall

be galvanized both inside and outside by hot dipped in accordance with ASTM A 625-76

Weight of zinc coating shall not be less han 550 gram per square meter

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b) Base of columns both inside and outside shali be coated with bituminous paint

up 10 a level o 25 centimeters above the base plate

3 Construction Methods

31 Excavation and Reinstatement

Excavation for cable or conduit laying or for foundations and reinstatement

shall be Darned out in accordance with thaprovisions of Section 25 (Sub-Clause 2632)

of 1hampS6 specifioations Reinstatement shall be suoh that the surface is restored to at

east its original standard

32 Concrete Work

All necessary foundations and footings or other concrete work shall be

carried out in acoordance with Sections 61 (sub-Clause 5112) and 02 of these

specifications Unless otherwise specified on the Drawings or in the Speoial Provisions

ooncrete shall be olass 8 Foundations shail be placed in one operation except that the

top 5 oentimetars may be placed after the superimposed structure is In position The

el(posed portions of foundations shall be formed to present a neat and tidy appearance

and sloped to shed water aV)lay from the structure supported Where existing

obs1ructions prevent the construction 01 foundations as shown on the plans then an

effective alternative may be provided subject to the prior approval of the Engineer

amp Ministry of National Development Department of Highways Specification For Highway

Construction 1970 Bangkok Thailand

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33 Conduits fittings and boxes

Copduits fittings and boxes shall be providsd and installed in accordance

with the provisions of Section 511 of these Speoifications except that chemically stable

tough plastic conduits fittings and boxes aocording to samples previously approved by

the Engineer will be permitted providing thet they do not soften when exposed to high

ambient temperature

The contractor may use alarger size of conduit than that specified at no

extra charge if he wishes but in this case the entire run shall be of the same size No

reducing touplings will be permitted

When metal conduits ara used cuts shall be made square amp11d true and all

couplings shell Ie screwed up until the ends of the conduits are brought together in order

to proVide a good electrical contact throughout The threads on all ferrous metal oonduits

bullsh8l1 be painted with rusT preventing paint before couplings are made up Where themiddot

coating on ferrous metal conduit has been dam~ged In handHng such damaged places

shall be painted with rust prevanting paint before installation

All conduit ends shall be threaded and capped until wiring is started When

caps are removed the threaded ends shall be provided with approved conduit bushings

Conduits shall be laid to a depth of not less than 50 centimeters below

pEIVed footwalks and medians and not less the 75 centimeters below the roadway

surface The location of all conduits at curb lines shall be marked by means of a Y at

laaat 10 centimeters high incised in the face of the curb directly above the conduit

Conduit terminating in iii standards cabine1s or pedestals shaH extend at least 5

C9Iltimeters vertically above the bottom of the box Such conduit shall be sloped towards

the top of the box to facilitate pulling Conduit entering the bottom of the box shall enter

in the direction of the run

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34 Pull boxes or Junction Boxes

Pull boxes shall be installed as shown on the plans and in any case at not

more than 00 meters intellals The contractormiddotmay install additional pull boxes without

extra charge jf he wishes Pull bo)(es shall be of reinforced concrete not less than 10

centimeters thick and may be of approved pre-cast deSign Reinforced concrete covers

acoured by two recessed brass bolts shaff be used on faatwalks the covers baing

inscribed Street Ughting on the outside Under the roadway covers shall be of steal or

oast iron inscribed as specified middotabove andlaid in II suitable concrete footing to withstand

trecffic loads Metal covers shall be effectivalr earthed to an earthing rod inside the box

Tops of puUboxes ~Ilan beeffectivoaly level with the slrfOunoing paved areas whether

footwslk or roadway but in unpaved areas the tOpl of pull boxes shall be buried 30

oentimeters below groul1d level The bottom of pull boxes shall be bedded in sand and

cement or crushed rock Permanent makers shall be provided and erected

toshow the position of all pull boxes

35 Tasting

A funotional test shari be made on completion of the work n order to

demonStrate thet every part of the equipment and installation fUllctionS as intended and

specJfled This test shall consist of not less ~a~ five nights continuous and satisfaatOlY

operation If any defects or unsatisfactory operation are revealed this condition shalf be

oorrected imd tne test continoued until the required five nights of satisfaotory opera~ion

have been performed

Prior to the functional test tlie contractor shaff carry out thefollowing

tests to the entire satisfaction of the Engineer

1) Each circuit shall be iested for oontinuity

2) Each circuit shall be tested for cething

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3) A m~gger test shall be made between eaoh cirouit and eart) The

Insulation fesistance shall be shown to be at least that specified within the relevant

codes

4) The distribution horizontal illumination valve of specified spacing in eaoh

code item in rale 6flux measured between two iuminair as avery two meters along

longitudinal and transverse road way line are essentially measured to show maxmean

min illuminati and uniformity ratios

Uniformity ratio minimum illumination average illumination

= not less than 126

and maximum illumination

minimum illumination

not more than 61

5) Rainproof Test

The lantern under test shall be mounted in its normal orientation on en

adjustable sUpPOrt as shown in fig 1 so that the fitting is near the center of the arc

desoribed by 1he oscillating tuba

After being switched on for one hour the lantern shllil be subjected to II

spray of water at a temperature not exceeding 200 C and ilt e pressure of approximately

67 Ibsin2 104 kgscm2i the tube being oscillated so as to describe an angle of SO

degrees from the vertical and in both directions from it This treatment shall be continLllld

for 20 nilnutes the fitting being switcher off after 10 minutes

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At tha end of this test there shall be to damage to the lamp or enclosure

and no visible evidence of water having aocumulated it the fitting

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Fig Apparatus for rainprooftest

On the completion of testing the contractor shall supply to the engineer

three copies of as buill plans and circuitdiagrams whicn shall clearly indicated any

modifications which have been made to the original design

4 Measurement

41 Unless a Bill of quantities is provided thjs item will not be measured and payment

shall be made one lumpsum basic

42 When a Bill Of Quantities is provided measurements shall made on the items detailed

In the Sill of quantities completed accepted and neesured in place The unit of

measurement for each item shall be the unit of measurement shown in the Bill of

Ouentitias

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5 Payment

51 The lump sum payment for the street lighting installation shall be full compensation

for furnishing ell materials labour equipment tools supervisiorl testing and incidentals

neossary to complete the work inoluding any necessary backfill foundations restoration

of footwalk roadway curbing and appurtenances damaged or destroyed during

construction The payment shall also cover the cost of design where this Is called for

The ILlmp sum paymEmt shall be deemed to include full compensation for

all additional materials and work not shown on Ihe Drawings or specified which are

nesessary to complete the installation

62 The work measured as provided in 42 shall be paid at Ihe contraot unit price for eacl1

item such price and payment constituting flln compensation for aU materials labour

equipment tools and incidentals nseded to complete the work All materials Bnd work

necessaJY for satisfactory completion of the installation which are not specifically

mentioned in the Bilt of quantities shall be deemed to be included in the items shown

corw~ors 6 Information to be supplied by bidtfelS

61 catalogs at electrioal components lanterns ballast etc

62 Plans and circuit diagrams ground rod connection diagram

S3 Photometric data

631 Utilisation Curve

632 Isoc8ndala diagram bull

633 Horizon~81 isofootcandle diagram

634 Polar light distribution curvs

64 Cataisl of columns BraCKets Base Plates concrete foundations

20

7 Other details of steel columms not mentioned above should comply with British

Standard 1840 1960 The decision shall be made by the Department

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bull

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11 MAIN INCOMING SWITCH BOARD 1~MIULft1YHh~L~rl1ifl1U1111 1210 B5l-l1l 6 UJl9lf 11111111 t9lJiI(fl-lfiIl1li4lJ~emllW1tnhlbJLiiU

lIl1lJnmiddothlllfl-lmJ1L~1 1lJ1lJill1lJLnIJ 10 L~WiiuJ11l7 ~Jl1)JUtjUN

l1fllltllilluflilslntlll1l4hlPi1l1fJlifl~Ui9l1li-tHl1t14f1~ L~1 iitl-lUltamphJVI~ ~ ~ ~tl ~ Vl1~I~fJlnUfll-l~~I1ntlltlWUi1ltl T3I1U 170middot200 wIl5 M~i~lI

SAFTY SWITCH lIUI1lniln1EiUpoundlnfl1Jii1UW MAIN INCOMING SWITCH

mil ~A ~ v ~J12 Iflltlll FUSE lU(Itll1lt11Uftl (TIME DElAYl lll~ffl1)1~13l11CUn1tfli1lll1

(INTERRUPTING CAPACITYll(11)1J6tJnh 10000 AMPERES SYMMETRICAL

UHz~tH~ AMPERE RATING lI1FI FUSE ~HYjnnnrrWLiitllIU11l AMPEREi

C LFI~~itl t l I iJ X ~I 113 Vl1nOlflVl~LnIJm1 1 OWITlJn 1 l-ll~Il~~Hillilfl-l l~rlJjHhtlfll JIl~1J1J

SAFTY SWITCH ~ FUSE ilEh~ct~ftil-lt~ LilUPllIj3i L~~lgtlpoundllltl1Pl AMPERE RATING ~tlj FUSE 11~J1~Jn1J LOAD lJ~WNlt9tltnlI1

rh~tJllN ~R1llliltlnUlyenl~l fJM nf1J 1ll7jIl~gt2olIli1~1nl1mfl1~iifi shy

1IIh1~til111unm1~nu~~Lfl1fltl1~tlUUlYhLill DISTRiBUTION BOARD klf- - shy

~fl~~~4tJP1l1lJ -u~~tl~~~~~~~ditl~fi~~~~~~Vi-~ci4~m1 ntl1~IINtJUU L~fJiJ~1~~Ii~1~tl~1L~~lnUn~~

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14 n1~1Jal11il1nlIl~l~WIll~~Pl1tl~-rV ~~ MAl N INCOMING SWITCH Uflt

1Iiiltl~J SAFTY SWITCH Ji~flFU$E 1lil-ll~ lniflfludlaltftl1 ~lIn(llll1l-ln)f

tvh~iuIAflljUUtJ C 1oIi1lllU1l UNDERGROUND CABLE NY( 1~lIil~ ~W

tilfJNfl)Jllii~vhLVtJ~nuwhj1 till uil 1I1111ll ~W~1oIuwiillYiUIvtfJ ~lru mmiddotuiWrht~whllU1lil AMPERE lI1ljI1-k~-rV tilMffllW~1nh 4 [1111-1

ij~fl3l1ll1 laquo~~ ttlUntl1l11~9I111-t1lW11ilti11i~1~1iH~UWiilmfJfl1Jtwh ()l1 4 iIflmiddotm11~Jgj1poundJn11lyj-Ml1M1oIell1 ~~jll1rltl LLflrlJdlflflllUvIl

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ilfl19ri1lt~fUliltll1~~)e11U~I1~J~ln~l1li1iIl-l CLEVIS ~fll SECONDARY RACK 1l1JlltU 30 - 60 n~Wll1 tillJ~lfie-tmf1illlll1Eltlla

1~1l2Jl~ 150 WIIll Uflfl~~t1I11t1ilf1nfJ~ltf SERVICE ENTRANCE CAP -~- ______-- _-_ -- ~ - _ ~tl3Jflhl

15 f1l1L~U~1al1n SWITCH BOARD bJul LOAD 11ni11~~hJi~l~1ffl1tJ

lilfl~f~lWtl 14 rllU~fllVl1Jlt1WtJl~il~~fl ~1WviilreflftlfJrI-M1lOil

tfltlllJ~m~~~lJlUu 14 ~e llllt1l~ltJIlu~f)muJ1fl3Jnu (fll3J11a~~tIla~~n~l~~I~fl~~~t1lln)ri~W~ll~1~~u~UJ3JiI1~1~ fflJYifnlluWIlnW ~1tllf~WiiiutJ1l1jhiSnl1n~l~u~lJllillln~1 60

LoDWjUJ tL1llilsLAB llatJn1m14~fl~nut~ml1ltiI1~UII1ltDi f1 Jlflfilll lI1Il1l

Jl1ljfl1fJIt 1Iil~ II1~3Jn1J LOAD 1ll1l011114DW1Il1i11 f1~1ii 1I~fl 14

16 m~tJfl1t1111t1tlL~l1ftJhJ t1~91Ht~IJJitH1itl1fJlIibr STREET LIGHTbull

WIRE (TYPE RHI ~1tltfl1UililVl~~1ll~middothltiifJ 141il1f ~-1n1W 2 mru IKfln

Il1J1 fI~~Illftl lI1l-l illhMrilIlil-l ILIl14hi~ ~ n+1 2 11I111-1tiflibll LIl1

17 lfIl4ill3J1lIiriilI)~JIl~il CARTfliDGE FUSE lltl4rluintfiPil~I1~t1

l

23

1S mJilILtJnIll~~lolJl(aJuVl11lINmliJ tJl1 l1~L~um1r4fllUliil UVlU~~eriI~ lli~u~u dtl~n mtlutiltiiJU~ziht~Jr~1l1 ril ln11I11fl ((Jnf11IIJl fIu~~1 ttlVll til ~Wflittill1-laquoriIIVltfltitl m~tYI (11)lilU1lJ1lEJBinIl1lri-mUf011fJ Lt~i

lmfliflILlJn(q1flffltl WIRE JOINT l11fluJ1tl~tJltlf1t1i1ilvnIl1tllhJuuuliw ill~~ilflnfl LltllfuiftJliltlig~~Lt1u~1n1rolufl1Y1flJ~~t1t1 (INSULATING SEALING COMPOUND) tll~U1lJ~lJ TAPE lilll~mftJrrU

111Jv4jh~mflI1Vjn 1mh

19 1mtll-4JrhltJlJ O1JlPiflfl1 poundIfl~~JWl fJiI1iJ~CPifl fl1 E1YIl iiiuLlhntJ LtlftllOltl mtth

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192 GROUND ROD Iifl~tJuJil~IlllLL~-31ill1fllLLtl-ljlJih (COPPER bull w

CLAD) i~lrIiWlilU1J~)~Jdnfll~jUlfJn15S ih UOJ1lWUtm

n~16 t1 rell1lhUII~1~lflIL~~t~ntlllJK~na (HOT-DIP

GALVANIZED STEEL) ril~ LLI1i1litHilLlAUeh~lilmn1t3Jufllni1 51B

ih fjJ1lWUIlJn11 B ~1i1

193 n1111itlmmL~fllJiI1mNiiiuolJ GROUND ROD ffl~il1Ji71

GROUND ROD CLAMP 1111~Ilt1mru~1flnm1 tj~il1JPiutlflm~lN1 J 1t~ ~ 4~t ~

194 n111J1 ~IJ11t1JMill1111 ~I~lEH ~~~Pl fl JJ Ilfl~11111 III IIJ~1lYI 1ZflIhllJ~

~il~tlfl1t1t1til6-l GROUND ROD lINl11iiiJfln1mrUil~J SO bull J

bull ~~UtitlJI1 IYlllt~tlfll1~rJIl~lifltJ1nnlQntlnn~

196 mIIit)M~Ul1nH1t1J1Jt1rJ9iU1lIJOU iIltJ~UhJJI~tl~ ~If1~~WhJ

UtlEln+1 2 ~c)

110 lfflllllllnUtl1JLurfIHi11~il VOLTAGE DROP 1~1~ MAIN INCOMING

SWITCH BOARD nlJ-iJllM 1LUN41thhriu 2u1flLiIIl~rltlnlN

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SINGLE LINE DIAGRAM 1~m111Yl1Ufl11-1ftl11i11rJltt1tmW1l14ritJdln11 ~

lIill~n171yHh W1l T~Ill ~111 Sllii1ltJ n1J~11lvi4QUmrutLa m1llJn1til1Yiw 1

112 mtlHh~1l1VlflH l~~1~OUn11t111lln11~Vl~~~Unlnrlf11tJ1vjfh~mJ Vl1I-IftlgtlJh Lihm11liHrillWtJlln LLIl1vI~1 n~1~491n01111I-M 1UII~ ~ fl l-l ~rll L~ufhlii III ~Hi~11 ~1iI1 ri 1111 Tlllll1llJ1 ir1l fl1H roh u~U 1 tlgj

ViNtflJ~lflthgtl H1llf1iiJl~~fl~ii 8AlLASn JIill1lll 1 Vll-l 1n

nT)J vn~j~fJgtlUlaquofJlvi1 L jjU nlfYI Iilil Ill vi~d 1121 11 VI iiil1J-liPIphrh laquo~tl4~~h POWER FACTOR flfJllJ t1i1tlVllUJIIllflUlll

bull

~)J i11EltU~lltflll 11111 Lt~~ IIN IiflPl 1n1In1itit~ fn1Yl laquon~ru

na~tI-1nU4llrJLlUlJ~ltlL1hJ1l1ltJ1WlllgtlLtiI)J LUlfim~ru nli ~

ni~ EJlhIiq bfllIfLJJtI~gtl

i1 i1lllbf)~ l iJ gtJ r11111 i1liIM1rJlIRtJ L~e-rli1

nlilliljllllJlnuflnVllltNihfl~lvjYlV11wm11~mjtJ POWER bull

FACTOR hi~m~1 09 LAG Will i1l1~J1hjjll1li1l~1ljjlU~lJfllflll

fIHlbrmW~1 nrl1 05 MEGoHM

112 2 Vli1lfliJll1i11llllJlhW1l1ul1J~fIlJlll1ill~J~lt 1Mr)~~11JLl 2l1lt1

tlHhlLlIlfiZ i~UnlJ~l ~MiJlh~1n~l 05 MEG OHM

U23 I1Q1f1il1l1ll GROUND RESTSTANCE lI1l~nl~Ill1lfllPU Llviil~Iltli1li

iiIl10~1U11jLii 25 OHM

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2 tThftEl~ft141iiflltlUUflW1U yenl~1P1n~1llihLfl-lfl~1~lI1ti11ru~PiIl~J1j (hrutifNI~11jUUflniu1ti Jum liell11Y11lJIlWLPiUL~)YJnlll~ il4fll itutll~-3d

21 MAIN INCOMING SWITCH BOARD xlllulbJ~)lJ1lf1f1L1iWI~1llJnU 11 ~ J ~ lV I~ bull J ~ lJt 11 1-11flvnnl~~~YlIWlflVIlUIi m1lj lU~1LLU~I1I1j1lm IUnl1I1lfll

IttJLlntlI1ht-11nlfi

22 I1ftl-1H FUSE ~1lJ11VilafifJll~i~1u1l t2middot

ll ~tl J ~l 11oj23 lt10flllllUl-1lnUn11 1 NlT JHuU ~1lJ11JIllflEl(i)Yl1Z1lIHUlIil 13

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24 mni1lUtl1t111n0IillI1lDlUJlLllffWJIil1 tH MAIN INCOMING SWITCH llfl

ilitlttJal SAFTY SWITCH 1tl FUSE lItl4HI1VflJ 1mUUfi1f1i~iliu ~flJ

Lutn1tnutl7-lllhnlVl1u i~dju1tlvn lJ t1tlitfl poundIf1~ltlJ1ntllftl 4

WliVl1 ndluIl1a~~ultllUll n111ll NrnIlU1ln il 1Ii1UI~tN1JtlJIilllJtll

~ bullbull I ~ t J Ii I inll1nll1Ull~fl) UUU A MnJllUUl TW VlUI1~lJ1[1I11IWajllflllllJnlbil

lrlh1Ifth~U~1l AMPERE jJfl~ilifl4rill1 ~-l~ ~lJ~1iIUIlii1l~fl~WUllf)n-i1 ~ ~ t - Il1 I - ~ Jv 4 fIl1l-l~ flflUJIll1 ulI~I~lil-lLIIIlJfl1 fJ lJ Lm I1Utl1YllfI1l1llllB-4l~ 1 lI~I t

Iifl~lillJL~1jJWlV112 ~W1I110 ~Jil185 UJIlI1 1-11El 6 LJJfl1~li1rl ~U~Pl~l~

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30middot 60 loitlelUJlIl1 llilpoundlltiltffregmiddotwiltluf11t1fl1atoyenU1tJ1N 160 UJ911 rilLInll

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fl~n~ IRIGID STEEL CONDUIT) tlI1U~1l1i1U1l~ll1fJItlnilWllJPI~YII

rMfuA1t1~tIlJil1ml1~l~fl)IJJ(lti ENtRANCE CAP

26 mfL~lJl1tll1n SWITCH BOARD tueT-l LOAD I~eiluhJIJ11jJrlfj ~ 11 Ji I ~ l

rZlalflll bUlIil 15 Yl4U MlJrImiddota1lEJIlUIUlJUfJltliIlU~IlEJ

2~ mnitl1un1fJ1Ulfl1~ultJu41ilHLfl~~~lil~mftlgtlLLI1~IOll1tlm)J1tJ fltL~~fIlUfa 16

26

27 M~~raquo~jt1l~minmltllllliiP1llliJifl~3j CARTRIDG E FUSE Llh~middothllnlJ 8 17 ehutfl~~~ll111 rnlllJ 1~1~~FllIiWItifltlUPIJ1~Jfl2ltJ1U1n Wlnu 10 ~bull~ ~1 1 I~~ tvlJil CARTRIDGE FUSE l-t1e CIRCUIT BREAKER

111)1) ~ lJl-lluvi1Utl-l~~Ejnu 28 n111ia LltlmlJtJ~tHi1IJJlJ ~fBN111flJt~tlnw1liUlt f) rlU~ 18 AlU

lU1lt~tl~lHUfl ~J I-l1~~Ln1tJrll-ltfrNf~Wlll~Yi1U Ilill~lIitltUOfllN ~ ~

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fltllUl n~11l11 111 WIRE JOINT SIllfjJfl~VIl ~1lllUPljJU l-t7poundluUUuUmI

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fl~m11il1~tor BOLT AND NUT yfiJ)IltW)1Jnjflfll2lhfufI~I1IJ~n

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29 lIlllM91lht~lJlJmtriflfllJIN~umiddothllilu1t1~1lJ11~flLliltJ~r1l171uffj 19191192193 194l11 196

210 VOLTAGE DROP ~11u1tlIll1lJ1lJilI~ltIl~1~lnuftl 110

211 011JI1ln1ll~I~1ill4Jil1Juuulw~rl1UtllflUMlflLI11P1lllilf111l11uoffEJ

111 t~nulvHh1JPrnfll~lrt1tnillJnlfMllltllJ~)l

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11211211122 Ul 1123

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31 MAIN INCOMNG SWiTCH BOARD li-YLUWttJ~ll1r1JIlIL~Eli1l~1lJ1U~~ 11 r-

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1 ~ i- ~ 0J

) 33 1A1fllJli1lI1l)lnUm1 1 ~I mthHtl~nm1tlilltlfJt1lmlJlnuiitl 13 ~ J_

34 n11LMU~lallnj1)Ill(Il1lPllLIl1lJVl1 01 MAININCOMING SWITCH ttlZ

IiitlhJ~~ SAFTY SWITCH 11l FUSE ll1l~NI1rlfla~1i~lJ 1 Vjn111l x~ilUhj lJI

P113-11UlflLJ tl6iYl1tJ tUlJ1l 24

36 n11i~USlfl9ln MAiN INCOMiNG SWITCH BOARD 1tltT~ LOAD 1A1nerlilf

~UllaquoliluhJumn1pound1Ii1aj1)~-llmW1ill 15bull

36 n11L~Uf11JlmJhlt~1tll~~~ LUWtflgt11~lil1J1tl111w11a111ilrt~ 1~tMlu ~il 16

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192 193 194 LIS 195

310 VOLTAGE DROP dJ1j1um~11tJlILfl[Ji11~j1jlul1l 110

311 nilJm~Vlfll-l~tir1l ~)jtltJllUU1W~IJ 1Jlnm1 ~~11l1ilmriruullYlriEl

hl t~Ji1ntll1l~tJtlrn~~rliltdfil 111 ~n11hl~1JllmflJHtlnntlu mi3I)9DUffl1lEJ

312 rntIYl1UflnlilW~tlhiilWn1lIij1ll~fl1l1il1)J rJfJlliiiaVl~jtjnUfil 112

11211122 LUI 1123

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6 36 22

10 60 30

bullbull 16 6076 i

ij25 96 64 d

36 119 79 ~ ~ 16060 102 ~ Iii

70 188 121 l

~ i 96 231 160 i

I 170 ~268120

dbull

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bull Na 86W 108 Watt

135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

bull 1OOOW 1043 Watt

9 fIl 1W-7tJNIIIJfiltJltilltllli~ 1iifl~1tnlfHtltll fI

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Page 7: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

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13 Compliance with Manufactures Specifications

Tha Ccntractor shall ensure that the equipment and parts used will be

entirely suitable for t~evvork to be performed and that they will be manufaotured to

proper clearances and fit He shall further ensure that the loading of equipment will under

all normal circumstances not exceed the maximum laid dawn at agreed in writing by the

manufacturer

The Contractor shall be responsible for the inspection of all equipment and

parts before their inoorporation in the works to ensure that they comply with the

condrtlons of the oontract and that they are not defective In Ilny way as regards materiels

or workmanship should any such noncompllance or dafectsbe found during the

inspection the Contractor shall correct or cause to be corrected sich nonmiddotcompliance lnd

defects all at the Contraotors expense and to the satisfaction of the Engineer

14 Maintenance Period

All repairs and replacements required during the Maintenance Period shall

be carried out with despatch and an adequate supply of spares shall be availabad for this

purpose (See also clause 10)

15 ElectricitySupply

The Contractor shall carry out negotiations with the Electricity Supply

Authority concerned an behalf of the Department of Highways for permanent electricity

supply to the installation Bnd any costs associated with obtaining this supply shall be

included in the contract rates The Contractor f1ust ensure that the equipment supplied

will function correctly at the supply voltage and must allow for normal variations and

surges

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16 Igtefinitions

Unless speCifically defined herein definitions shall be as given In British Standard

892 1967 Glossary of Highway Engineering Terms and in British Standard

I Code of Practice CP 1004 Street Lighting both as amended at the time of Tender

a) Lantern A housing for one or more lamps comprising the body and

I any refractor refleotor diffuser or enclosure associated with the lamp

or lamps

bl Owooch The distance measured horizontally between the centre of a

fantern mounted on a bracket and the centre of the column or well

face

cJ QIflrhang The distance measured horizortally between the centre of aI fantam and the adjacent edge of the pavement

d) Mounting Height The vertical distance betWeen the centre of the

lantern and the surface of the pavement

e) Spacing The distance measured parallei to the centre ine of the road

between successive lanterns In a staggered arrangement this

distance is measured parallel to the centre line from the centre of a

lantern on one side of the road to the centre of the next lantern on

the opposite side

I) aaam That portion of the light output of the lantern contained by the

solid angle subtended at the effective light oentre of the lantern

containing the maximum intensity but no intensity less than 90 of

the maximum intensfty

g) Iumjoous Flux The light given by a light source of lantern or received

by a surface irrespective of the direction in which it is distributed

The unit of luminous Flux is the Lumen LM)

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hI j ower Hemispherical FIx or Downward FIIIX The luminous Flux

emitted by a lantem in all directions below the horizontal

il reek Intensity Ratio The ratio of the maximum Intensity to the mean

hemispherical intensity of Ihe light emitted below the horizontal

j) Mean Hemispherjoallnlensi1yen The downward flux divided by 628

(This is the average intensity in the lower hemisphere

k) Intensity Ralio The ratio of the actual intensity in any direction of a

lantem to the mean hemispherical intensity

I) luminous Inleosltyen The light giving power of a lantern in any particUlar

direction The unit of luminous intensity is the Candela (cd) Beam

Center lsocandela Curve Isocendela diagram Polar Curve

mJ Beam center A direction midway between the directions for ~hich

the intensity is 90 percent of the maximum in a vertical plane through

the IOOximum and on a conicsl surfaoe throught the maxlmum

n)lsQcandala curve A curve traced on an imaginary sphere with the

source at its center and joining all tha poillts corresponding to those

direotions in which the luminous intensity is the same or Ii plane

projection of this curve

0) ISQCodea diagram An array of isocandela ourves

p) Polar Curve Curve of light distribution using polar co-ordinates

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2 Materials and Equipment f

f 21 Lanterns ~

~ The supplier must submit the guaranteed letter of these BobY alluminailll r shall be non-corrosive light alloy metal colour if applied shall be stove enamelled finish in

gray or aluminum shadet Reflector if used shall be mirror type and made of smdized aluminum 1

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j sheet Gasket shall be applied on every par where insact is expected to enter into lemp

1 compartment including that at sllpfltter collar The gasket used shall be non-aging andt heat-resistant type transverse and longitude cross~iection drawing of the lIsminair ecaled

11 shall be furnished with the quotation

Refractor [enclosing bowl) if made of the transparent acrylic will not

produce less output due to colour changing within first 6 years of servloe

a) Lanterns she be of the cut-ltlff or thll samimiddotcut-off type as shown on

the Drawings or as specified in the Spacial Provisions Non-cutmiddotoff

lanterns shillI not be used

bJ Unless otherwis~ specified the mounting height shall be not less than

75 meters (or 250) nor more 1han 12 meters (or 400)(

c) Where there is no speed limit on the road or where thare is II speed

limit of more than 60 kilometers per hour the minimum clearance

between columns and the edge of the pavement shall normallv be

16 meters but where this is not reasonably attainable such as

1 bridge locations and cther rejtriotad areas the minimum olearance i i bull i may with the previous permission of the angineer be reduced 10 10~1

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WherB there is a speed limit of less than 60 kilometers per hour the

minimum otearance between columns and the edge of the pavement should be 16

meters but this may be reduoed to

050 meter for crossfaJis of not more than 1 in 40 towards the curb

OSO meter for crossfalls of between 1 in 40 and 1 in 24 towards the

ourb

075 meter for crcssfalls of more than 1 in 24 towards to ourb with the

previous permission of the Engineer

d) Each lantern should normally di rect two beams along the length of

the road rhepolar curves of the lenterns in both horizontal and

vertioal planes snould be smooth and free from any abrupt

variations so that the luminous intensity diminishes smoothly and

progressively from its maximum For centrally mounted lanterns the

beams should ba approximately axial for lanterns mounted at the

sides of tns roadway the maximum toe-in of the beam will be 160

Adequate but not excessiVE Ught should be dirlided towards tha ourbs

and outer edge of the road Wliere area illumination is required using

high mast righting these provisions she not necessarily apply

il) For out-off lanterns the beam should 00 in a direotion about 650 from

the downward vertical The peak Intensity ratio shall be between 20

bull and 40 the intensity ratio in the zone [JO to 3()O below a horizontal

plene through the lantern shali be between 03 and 20 An Intensity

ratio of 12 shall lie between elevations of 72deg imd 7Bofrom the

downwsrd vertical in the vertical plane parallel tomiddotthe lIJ(is of ths

roadway and the horizontal intensity ratio in the same plane shall be

not greater than 015

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f) In the case of semi-out-off lanterns the beam should lie in a direotion

about 750 from the downward vertical The peak intensity ratio shall

be between 18 and 40 The intensity ratio in the 00 to 300 zone

below a horizontal plane thrOJgh the lantern shall be between 03 and

17 An intensity ratio of 12 shall ie between elevations of 780 and

840 from the downward vertical in the vertical plane paralled to the

axis of the roadway and the horizontal intensity ra1io in the same

plana shall be not greater than 06 except that in the case of sodium

lamps the intensity ratio 01 12 shall lie Similarly between BOO and

860 and the horizontal intensity ratio in the same plane shall not

exceed 07

gl The siting of lanterns shall be in accordance with the following table

which gives minimum required illumination Particular care shall be

taken with the siting of lanterns on bends and surnmit vertical ourves

At junctions and roundabouts lantern spacing shall be designed so as

to give at least the minimum illumination required by the following

tables and also lanterns shan be spaced and sited where possible

so as to delineate the cour39 of the roadway plainly to road ussr

approaching from any normal direction without any possible mislending

impressions

The level of illuminetion provided as road junctions and roundabouts bull i

shall be at least as high as that on any of the approach roads and in

the case of roundabouts a minimum Jeve middotof illumination at any curb

Hne of 10 lUmens per square meter shall be provided

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Required minimum Average Horizontal lruminatlon

in lumens per Square Meter (Lumens per Square Footl

Central-Urban Sub-Urban Rural

Areas Areas Areas

High Grade MotorWays 215 (201 150 (14) 1075 (10)

At J~notions 215 (2Q) 215 (20) 150 (14) jgt Main Routes 215 (20) 130 112) 97 (09)

I Seo90dary Routes 130 112) 97 (09) 65 (06)

I Local Roads 97 (09) 65 (06) 21 (Q2bullbullI (Residentiaj

areas only)

The Contractor shalt certify that the design of the installation has been

done in accordanoe with American Standard Practice for Roadway lighting (D 121 shy

1~l pubished by the lIIumnating Engineering Society 345 East 47th Street New York

or in accordance with British Standard Gode of practice CP 1004 of 1963 Street lighting

Published by the British Standards Institution 2 Park Lane London WI except in so tar

8S these have baen varied by the provisions of this speoification or any special provisions

22 Wiring end Switching

The Wiring and switching supplied for control of lanterns (each device bull

controlling B group of lantern) shall be of a type approved by and agreed with thei

Electricity Supply Authority Unless otherwise specified photoelectrio relayswitching shall

be used

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23 Columns and Brackets

ltII Columns shall be of steei construction ai1d shail consist of tapered

round hollow shafts with anchor bases Each column shall be provided with a suitable

cable slot and a weatherproof service door fitted with a tamperproof lock All locks shall

be of the same pattern and six keys shall be provided for them

b) A non-hygroscopic mounting bord cqmposed of electrically insulating

material shall be fitted in an easily acoessibfe position inside the column and ehall be of

c suitable size to take all necessary electrical equipment Adjacent to this mounting bosrd

there shall be prollided on the inside of the column tWo stainless steel studs not less

than 4 centimeters long nor less than 8 millimeters diameter and compi~t8 with stainless

steel look nuts and washers for use as earthing connections

c) Brackets to provide the required Outreach shall be of sufficientlv strollfij ~

bull construction to support the lantern under all normal conditions without significant 1

movement and shall be provided with suitable fittingsto take thelantems When in

positioo bralt~ts shall be inclined upwards at an angla of approximately 1SO to the

horizonaIand shall be fixed to their supports by suitable welding fastenings or wall

C plates

dl Columns and brackets shall be strucrursl steel having the following

mechanical properties

bull Thiokness of sheet steel (min) 4mm

~ Ultimate TeruJlie Strength (min) 41 kgQ1m2 Imiddot

bull Yleld Point (min) 25kgmm2

- Elongation (min) 21

oj Straightness That part of the column above the ground shtll not deviate

from straightness by more than an amount calculatad at II rate of 21 mm per meter of

column length ~

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24 High Mast Lighting

Mounting heights from 20 meters and more shail be High Mast

a) Columns carrying high mast lighting shall be designed to permit the

whole of the lantern carriage to be easily s6fely and quickly lowered to ground level for

maintenance works The columns shail bee designed in accordanoe with British Standard

449 or other internationally aocepted standard for design of structural steelwork in

buildings except that the temporary horizontal defleotion of the top of the column may to

up to 75 of the height above ground In calculating the tending moment at ground

level due to wind load it shall be assumed that the wind speed at B point ten meters

above ground level is 60 kjiometers per hour and the design of the column hall be such

that wind excited oscillations are damped as much as possible Adequate allowance shalf

be Ij1sde for the stresses produced by 6uoh oscllationslt Details shall be given of the

vertical and horizontal load Bnd the bending moment at the foundations

bl The base plate shall ba free from laminations and all dimensions of the

base plate shall be provided including details of the holding down belts A cable entry

hole of not less than 30 cen1imeters diameter shalf be prCNided centrally in each base

middot c plate and the bottom of lile maat shall pass through the base plate and be welded onC

both sides An altsmstiv9 construotion of equal strength may be accepted by the

Engineer but a butt weld on the base plale will not be accepted

Each holding down belt shall be tensioned to the design value and within

the maintenance period the bolts shall be checked and retightened 8S necesllsry after

Whioh the nuts shalf be repainted

oJ The columns shall be deli~ered to the site in the minimum practicable

number of lengths Any joints necessary shall be positioned as near the top of the

Qotumns as possible

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d) The lantern carriage shail support the designed number of lanterns

Vithiout significant sway or movement and shall be capable of supporting these lanterns

II cradle with two men for maintenance work The lantern carriage shall be protected

prevent damage to the painted surface of the columns rotation of the carriage during

6IgtIIIJ and lowering shall be prevented and correct location when raised shall be ensured

some positive means It sha be possible to remove the lantem carriage without

illwerirl1l the column

el The lantern carriage shall be raised and lowered by a self sustaining

capable of being operated either by hand or by a portable electrically operated tool

middotIt shall be possible to lock the winch in any position by a simple robust and easily

operated mechanism The worm gear shall have a ratio of at Ieast 201

f) The winch shall have removable handles and it shall be mounted within

the base compartment at a convenient Vcrking height The opening in ths column shall

be of sufficient size to allow proper operation and maintenance of the winch mechanism

A weatherprClOf lab1 shall be fixed in an obvious position wihtn the column base giving

a full list of allmiddot lubricating points on the winch and other mechanism and detail of

recommened lubricants Winches fixed inside the column shall bs provided with a

substantial cover to fully protect them failing dirt and dust

gl A sufficient number of turns of the hoisting cable shall be left on the

winch drum when the carriage is fully lowered to ensure that the cable anchorage on the

drum do~s not take the full load of the carriage at any time

hI the last 30 centimeters of travel to t~e fully raised position of the

carriage shall be by hand operation and for lhis purpose either a limit switch shall be

provided to cut off the power supply to the portable electric tool at the appropriate time

or else some form of indication shall be provided to indicate when the carriage is 30

centimeters from the fully raised position

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i The winch cable shall be of stranded stainless steel wires and shall have

sufficient capacity to carry safely the lantern carriage complete with lanterns and a cradle

with two men attached thereto Great oare shall be taken during installation to ensure

that the hoisting cables do not twist or kink and any set twist Of kink shall be sufficient

rflsson for the rejection of that cable

j) All parts of the raising and loWering mechanism which are inaccessible

after erectlon of the oolumns shall be adequately protected against moisture dirt and

corrosion Where neoessary pulleys shall be fitted with shields to prevent the winch

cable becoming displaced Pulleys for electrioal cables shaH be of sufficient dimameter

that the cablll will not be bent to a smaller radius then that permitted by loca relulations

or those of the British Institutiof of Electrical Engineers 14th Edition Where necessary

for continued tfOllbe free operation metal parts shall be of stainless steel or other

approved non-corrodible material

kl When pewsr tool operation is used a suitable power outlet shall be

providad and the operalor shall be adequately safeguarded against any electrical shocks

rhe power tool shall preferably be designed to work on a reduced voltagee end in this

OBse a suitable approved type of translormar shall be provided The power too shall be

designed so that continuOlls operation will cause no harmful effects on either the winch

Of the tool and in the event of power failure the winch shall be self locking Conversion

from power to hand operation and vice versa shall be quick and easy and shall not require

spacial tools Full imOfmallon on tha type of power tool proposed shall be given with the

lender

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25 Protection Against Corrosion

Unless otherwise spceified columns bracket arms and brackets shall be

protected against corrosiOil eithsr by painting or galvanizing as follows

261 Painting

sl Cou~ns and masts shall be treated internalty with hot asphalt under

high pressure so as to givB a complete arid unbroken asphaltic coVering or other approved

anti-corrosion treatment shalt be applied to give at least equally good protection Bas63

shall be similarly treated up to a level of 25 centimeters above ground ievel

b) Before delivery to the site columns masts steelltracKets and external

fitting shall have all external welds ground down ilnd all external surfaces cleaned by shot bull

blasting or other approved method to a whitsmetal finish free of all signs of rust

Immediately folJowil1g t~is treatment the items ahall be painted with two coats of tropical

red lead undercoat followed by two coats of aluminium paint or they shall be treated in a

similar and hot tass affective manner aoceptable to the Enginesr to present subsequent

oorrosion After Grection ali imperfections and damage shall be made good to the

Engineers satisfaction and the items shall be given a final coat of all aluminium paint

262 Galvanizingmiddot

a) Before delivery to the site columns masts steel brackets and extemal

fittings shall have all extemal welds ground down Poles and other ferous materials shall

be galvanized both inside and outside by hot dipped in accordance with ASTM A 625-76

Weight of zinc coating shall not be less han 550 gram per square meter

14

b) Base of columns both inside and outside shali be coated with bituminous paint

up 10 a level o 25 centimeters above the base plate

3 Construction Methods

31 Excavation and Reinstatement

Excavation for cable or conduit laying or for foundations and reinstatement

shall be Darned out in accordance with thaprovisions of Section 25 (Sub-Clause 2632)

of 1hampS6 specifioations Reinstatement shall be suoh that the surface is restored to at

east its original standard

32 Concrete Work

All necessary foundations and footings or other concrete work shall be

carried out in acoordance with Sections 61 (sub-Clause 5112) and 02 of these

specifications Unless otherwise specified on the Drawings or in the Speoial Provisions

ooncrete shall be olass 8 Foundations shail be placed in one operation except that the

top 5 oentimetars may be placed after the superimposed structure is In position The

el(posed portions of foundations shall be formed to present a neat and tidy appearance

and sloped to shed water aV)lay from the structure supported Where existing

obs1ructions prevent the construction 01 foundations as shown on the plans then an

effective alternative may be provided subject to the prior approval of the Engineer

amp Ministry of National Development Department of Highways Specification For Highway

Construction 1970 Bangkok Thailand

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33 Conduits fittings and boxes

Copduits fittings and boxes shall be providsd and installed in accordance

with the provisions of Section 511 of these Speoifications except that chemically stable

tough plastic conduits fittings and boxes aocording to samples previously approved by

the Engineer will be permitted providing thet they do not soften when exposed to high

ambient temperature

The contractor may use alarger size of conduit than that specified at no

extra charge if he wishes but in this case the entire run shall be of the same size No

reducing touplings will be permitted

When metal conduits ara used cuts shall be made square amp11d true and all

couplings shell Ie screwed up until the ends of the conduits are brought together in order

to proVide a good electrical contact throughout The threads on all ferrous metal oonduits

bullsh8l1 be painted with rusT preventing paint before couplings are made up Where themiddot

coating on ferrous metal conduit has been dam~ged In handHng such damaged places

shall be painted with rust prevanting paint before installation

All conduit ends shall be threaded and capped until wiring is started When

caps are removed the threaded ends shall be provided with approved conduit bushings

Conduits shall be laid to a depth of not less than 50 centimeters below

pEIVed footwalks and medians and not less the 75 centimeters below the roadway

surface The location of all conduits at curb lines shall be marked by means of a Y at

laaat 10 centimeters high incised in the face of the curb directly above the conduit

Conduit terminating in iii standards cabine1s or pedestals shaH extend at least 5

C9Iltimeters vertically above the bottom of the box Such conduit shall be sloped towards

the top of the box to facilitate pulling Conduit entering the bottom of the box shall enter

in the direction of the run

16

34 Pull boxes or Junction Boxes

Pull boxes shall be installed as shown on the plans and in any case at not

more than 00 meters intellals The contractormiddotmay install additional pull boxes without

extra charge jf he wishes Pull bo)(es shall be of reinforced concrete not less than 10

centimeters thick and may be of approved pre-cast deSign Reinforced concrete covers

acoured by two recessed brass bolts shaff be used on faatwalks the covers baing

inscribed Street Ughting on the outside Under the roadway covers shall be of steal or

oast iron inscribed as specified middotabove andlaid in II suitable concrete footing to withstand

trecffic loads Metal covers shall be effectivalr earthed to an earthing rod inside the box

Tops of puUboxes ~Ilan beeffectivoaly level with the slrfOunoing paved areas whether

footwslk or roadway but in unpaved areas the tOpl of pull boxes shall be buried 30

oentimeters below groul1d level The bottom of pull boxes shall be bedded in sand and

cement or crushed rock Permanent makers shall be provided and erected

toshow the position of all pull boxes

35 Tasting

A funotional test shari be made on completion of the work n order to

demonStrate thet every part of the equipment and installation fUllctionS as intended and

specJfled This test shall consist of not less ~a~ five nights continuous and satisfaatOlY

operation If any defects or unsatisfactory operation are revealed this condition shalf be

oorrected imd tne test continoued until the required five nights of satisfaotory opera~ion

have been performed

Prior to the functional test tlie contractor shaff carry out thefollowing

tests to the entire satisfaction of the Engineer

1) Each circuit shall be iested for oontinuity

2) Each circuit shall be tested for cething

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3) A m~gger test shall be made between eaoh cirouit and eart) The

Insulation fesistance shall be shown to be at least that specified within the relevant

codes

4) The distribution horizontal illumination valve of specified spacing in eaoh

code item in rale 6flux measured between two iuminair as avery two meters along

longitudinal and transverse road way line are essentially measured to show maxmean

min illuminati and uniformity ratios

Uniformity ratio minimum illumination average illumination

= not less than 126

and maximum illumination

minimum illumination

not more than 61

5) Rainproof Test

The lantern under test shall be mounted in its normal orientation on en

adjustable sUpPOrt as shown in fig 1 so that the fitting is near the center of the arc

desoribed by 1he oscillating tuba

After being switched on for one hour the lantern shllil be subjected to II

spray of water at a temperature not exceeding 200 C and ilt e pressure of approximately

67 Ibsin2 104 kgscm2i the tube being oscillated so as to describe an angle of SO

degrees from the vertical and in both directions from it This treatment shall be continLllld

for 20 nilnutes the fitting being switcher off after 10 minutes

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At tha end of this test there shall be to damage to the lamp or enclosure

and no visible evidence of water having aocumulated it the fitting

04 rnm dlo hDln

Fig Apparatus for rainprooftest

On the completion of testing the contractor shall supply to the engineer

three copies of as buill plans and circuitdiagrams whicn shall clearly indicated any

modifications which have been made to the original design

4 Measurement

41 Unless a Bill of quantities is provided thjs item will not be measured and payment

shall be made one lumpsum basic

42 When a Bill Of Quantities is provided measurements shall made on the items detailed

In the Sill of quantities completed accepted and neesured in place The unit of

measurement for each item shall be the unit of measurement shown in the Bill of

Ouentitias

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5 Payment

51 The lump sum payment for the street lighting installation shall be full compensation

for furnishing ell materials labour equipment tools supervisiorl testing and incidentals

neossary to complete the work inoluding any necessary backfill foundations restoration

of footwalk roadway curbing and appurtenances damaged or destroyed during

construction The payment shall also cover the cost of design where this Is called for

The ILlmp sum paymEmt shall be deemed to include full compensation for

all additional materials and work not shown on Ihe Drawings or specified which are

nesessary to complete the installation

62 The work measured as provided in 42 shall be paid at Ihe contraot unit price for eacl1

item such price and payment constituting flln compensation for aU materials labour

equipment tools and incidentals nseded to complete the work All materials Bnd work

necessaJY for satisfactory completion of the installation which are not specifically

mentioned in the Bilt of quantities shall be deemed to be included in the items shown

corw~ors 6 Information to be supplied by bidtfelS

61 catalogs at electrioal components lanterns ballast etc

62 Plans and circuit diagrams ground rod connection diagram

S3 Photometric data

631 Utilisation Curve

632 Isoc8ndala diagram bull

633 Horizon~81 isofootcandle diagram

634 Polar light distribution curvs

64 Cataisl of columns BraCKets Base Plates concrete foundations

20

7 Other details of steel columms not mentioned above should comply with British

Standard 1840 1960 The decision shall be made by the Department

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(INTERRUPTING CAPACITYll(11)1J6tJnh 10000 AMPERES SYMMETRICAL

UHz~tH~ AMPERE RATING lI1FI FUSE ~HYjnnnrrWLiitllIU11l AMPEREi

C LFI~~itl t l I iJ X ~I 113 Vl1nOlflVl~LnIJm1 1 OWITlJn 1 l-ll~Il~~Hillilfl-l l~rlJjHhtlfll JIl~1J1J

SAFTY SWITCH ~ FUSE ilEh~ct~ftil-lt~ LilUPllIj3i L~~lgtlpoundllltl1Pl AMPERE RATING ~tlj FUSE 11~J1~Jn1J LOAD lJ~WNlt9tltnlI1

rh~tJllN ~R1llliltlnUlyenl~l fJM nf1J 1ll7jIl~gt2olIli1~1nl1mfl1~iifi shy

1IIh1~til111unm1~nu~~Lfl1fltl1~tlUUlYhLill DISTRiBUTION BOARD klf- - shy

~fl~~~4tJP1l1lJ -u~~tl~~~~~~~ditl~fi~~~~~~Vi-~ci4~m1 ntl1~IINtJUU L~fJiJ~1~~Ii~1~tl~1L~~lnUn~~

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14 n1~1Jal11il1nlIl~l~WIll~~Pl1tl~-rV ~~ MAl N INCOMING SWITCH Uflt

1Iiiltl~J SAFTY SWITCH Ji~flFU$E 1lil-ll~ lniflfludlaltftl1 ~lIn(llll1l-ln)f

tvh~iuIAflljUUtJ C 1oIi1lllU1l UNDERGROUND CABLE NY( 1~lIil~ ~W

tilfJNfl)Jllii~vhLVtJ~nuwhj1 till uil 1I1111ll ~W~1oIuwiillYiUIvtfJ ~lru mmiddotuiWrht~whllU1lil AMPERE lI1ljI1-k~-rV tilMffllW~1nh 4 [1111-1

ij~fl3l1ll1 laquo~~ ttlUntl1l11~9I111-t1lW11ilti11i~1~1iH~UWiilmfJfl1Jtwh ()l1 4 iIflmiddotm11~Jgj1poundJn11lyj-Ml1M1oIell1 ~~jll1rltl LLflrlJdlflflllUvIl

ftltJft11111l1U(IlLflM1l1lJKIna (RIGID STEEL CONDUm ~flilfl~n1J01 n ~IltJn1LtllOLLftliltJ1fllhJ11(1)1 tTtJiI1Y1ltJ~1n m fl1l~ uft~l4Pia

ilfl19ri1lt~fUliltll1~~)e11U~I1~J~ln~l1li1iIl-l CLEVIS ~fll SECONDARY RACK 1l1JlltU 30 - 60 n~Wll1 tillJ~lfie-tmf1illlll1Eltlla

1~1l2Jl~ 150 WIIll Uflfl~~t1I11t1ilf1nfJ~ltf SERVICE ENTRANCE CAP -~- ______-- _-_ -- ~ - _ ~tl3Jflhl

15 f1l1L~U~1al1n SWITCH BOARD bJul LOAD 11ni11~~hJi~l~1ffl1tJ

lilfl~f~lWtl 14 rllU~fllVl1Jlt1WtJl~il~~fl ~1WviilreflftlfJrI-M1lOil

tfltlllJ~m~~~lJlUu 14 ~e llllt1l~ltJIlu~f)muJ1fl3Jnu (fll3J11a~~tIla~~n~l~~I~fl~~~t1lln)ri~W~ll~1~~u~UJ3JiI1~1~ fflJYifnlluWIlnW ~1tllf~WiiiutJ1l1jhiSnl1n~l~u~lJllillln~1 60

LoDWjUJ tL1llilsLAB llatJn1m14~fl~nut~ml1ltiI1~UII1ltDi f1 Jlflfilll lI1Il1l

Jl1ljfl1fJIt 1Iil~ II1~3Jn1J LOAD 1ll1l011114DW1Il1i11 f1~1ii 1I~fl 14

16 m~tJfl1t1111t1tlL~l1ftJhJ t1~91Ht~IJJitH1itl1fJlIibr STREET LIGHTbull

WIRE (TYPE RHI ~1tltfl1UililVl~~1ll~middothltiifJ 141il1f ~-1n1W 2 mru IKfln

Il1J1 fI~~Illftl lI1l-l illhMrilIlil-l ILIl14hi~ ~ n+1 2 11I111-1tiflibll LIl1

17 lfIl4ill3J1lIiriilI)~JIl~il CARTfliDGE FUSE lltl4rluintfiPil~I1~t1

l

23

1S mJilILtJnIll~~lolJl(aJuVl11lINmliJ tJl1 l1~L~um1r4fllUliil UVlU~~eriI~ lli~u~u dtl~n mtlutiltiiJU~ziht~Jr~1l1 ril ln11I11fl ((Jnf11IIJl fIu~~1 ttlVll til ~Wflittill1-laquoriIIVltfltitl m~tYI (11)lilU1lJ1lEJBinIl1lri-mUf011fJ Lt~i

lmfliflILlJn(q1flffltl WIRE JOINT l11fluJ1tl~tJltlf1t1i1ilvnIl1tllhJuuuliw ill~~ilflnfl LltllfuiftJliltlig~~Lt1u~1n1rolufl1Y1flJ~~t1t1 (INSULATING SEALING COMPOUND) tll~U1lJ~lJ TAPE lilll~mftJrrU

111Jv4jh~mflI1Vjn 1mh

19 1mtll-4JrhltJlJ O1JlPiflfl1 poundIfl~~JWl fJiI1iJ~CPifl fl1 E1YIl iiiuLlhntJ LtlftllOltl mtth

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ih fjJ1lWUIlJn11 B ~1i1

193 n1111itlmmL~fllJiI1mNiiiuolJ GROUND ROD ffl~il1Ji71

GROUND ROD CLAMP 1111~Ilt1mru~1flnm1 tj~il1JPiutlflm~lN1 J 1t~ ~ 4~t ~

194 n111J1 ~IJ11t1JMill1111 ~I~lEH ~~~Pl fl JJ Ilfl~11111 III IIJ~1lYI 1ZflIhllJ~

~il~tlfl1t1t1til6-l GROUND ROD lINl11iiiJfln1mrUil~J SO bull J

bull ~~UtitlJI1 IYlllt~tlfll1~rJIl~lifltJ1nnlQntlnn~

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110 lfflllllllnUtl1JLurfIHi11~il VOLTAGE DROP 1~1~ MAIN INCOMING

SWITCH BOARD nlJ-iJllM 1LUN41thhriu 2u1flLiIIl~rltlnlN

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SINGLE LINE DIAGRAM 1~m111Yl1Ufl11-1ftl11i11rJltt1tmW1l14ritJdln11 ~

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112 mtlHh~1l1VlflH l~~1~OUn11t111lln11~Vl~~~Unlnrlf11tJ1vjfh~mJ Vl1I-IftlgtlJh Lihm11liHrillWtJlln LLIl1vI~1 n~1~491n01111I-M 1UII~ ~ fl l-l ~rll L~ufhlii III ~Hi~11 ~1iI1 ri 1111 Tlllll1llJ1 ir1l fl1H roh u~U 1 tlgj

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FACTOR hi~m~1 09 LAG Will i1l1~J1hjjll1li1l~1ljjlU~lJfllflll

fIHlbrmW~1 nrl1 05 MEGoHM

112 2 Vli1lfliJll1i11llllJlhW1l1ul1J~fIlJlll1ill~J~lt 1Mr)~~11JLl 2l1lt1

tlHhlLlIlfiZ i~UnlJ~l ~MiJlh~1n~l 05 MEG OHM

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iiIl10~1U11jLii 25 OHM

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21 MAIN INCOMING SWITCH BOARD xlllulbJ~)lJ1lf1f1L1iWI~1llJnU 11 ~ J ~ lV I~ bull J ~ lJt 11 1-11flvnnl~~~YlIWlflVIlUIi m1lj lU~1LLU~I1I1j1lm IUnl1I1lfll

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30middot 60 loitlelUJlIl1 llilpoundlltiltffregmiddotwiltluf11t1fl1atoyenU1tJ1N 160 UJ911 rilLInll

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fl~n~ IRIGID STEEL CONDUIT) tlI1U~1l1i1U1l~ll1fJItlnilWllJPI~YII

rMfuA1t1~tIlJil1ml1~l~fl)IJJ(lti ENtRANCE CAP

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26

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fltllUl n~11l11 111 WIRE JOINT SIllfjJfl~VIl ~1lllUPljJU l-t7poundluUUuUmI

L1tHililn~ LLft)UliUliltliI~~tih~1 ~tlrnfJU~1lfuli~H11 tI

(INSULATING SEALING COMPOUND) ILfl~Uyjlllill TAPE IIiWtlhl1nnfu

fIltllri~1ttMIIl1lln 1 Ull~ ~ft)+tJrl tlil11ilyjlhDll~ntilllnlJt~flh~ llfl~Il)nUlvrfJI~lJVPl~laRIGID CLAMP llll RIGID CLAMP BACK middotflfI

vlllnuillNfiTl-Ul ll1ulllUYjntRl- (EXANSION Bom dll-lfUfltYllIJ

fl~m11il1~tor BOLT AND NUT yfiJ)IltW)1Jnjflfll2lhfufI~I1IJ~n

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29 lIlllM91lht~lJlJmtriflfllJIN~umiddothllilu1t1~1lJ11~flLliltJ~r1l171uffj 19191192193 194l11 196

210 VOLTAGE DROP ~11u1tlIll1lJ1lJilI~ltIl~1~lnuftl 110

211 011JI1ln1ll~I~1ill4Jil1Juuulw~rl1UtllflUMlflLI11P1lllilf111l11uoffEJ

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11211211122 Ul 1123

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tt~l~fi1MfteINihfJUflmlaquoutl1-lvh-l 1 iJ~lLLUh~d

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31 MAIN INCOMNG SWiTCH BOARD li-YLUWttJ~ll1r1JIlIL~Eli1l~1lJ1U~~ 11 r-

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34 n11LMU~lallnj1)Ill(Il1lPllLIl1lJVl1 01 MAININCOMING SWITCH ttlZ

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P113-11UlflLJ tl6iYl1tJ tUlJ1l 24

36 n11i~USlfl9ln MAiN INCOMiNG SWITCH BOARD 1tltT~ LOAD 1A1nerlilf

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192 193 194 LIS 195

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311 nilJm~Vlfll-l~tir1l ~)jtltJllUU1W~IJ 1Jlnm1 ~~11l1ilmriruullYlriEl

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11211122 LUI 1123

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bull Na 86W 108 Watt

135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

bull 1OOOW 1043 Watt

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Page 8: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

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16 Igtefinitions

Unless speCifically defined herein definitions shall be as given In British Standard

892 1967 Glossary of Highway Engineering Terms and in British Standard

I Code of Practice CP 1004 Street Lighting both as amended at the time of Tender

a) Lantern A housing for one or more lamps comprising the body and

I any refractor refleotor diffuser or enclosure associated with the lamp

or lamps

bl Owooch The distance measured horizontally between the centre of a

fantern mounted on a bracket and the centre of the column or well

face

cJ QIflrhang The distance measured horizortally between the centre of aI fantam and the adjacent edge of the pavement

d) Mounting Height The vertical distance betWeen the centre of the

lantern and the surface of the pavement

e) Spacing The distance measured parallei to the centre ine of the road

between successive lanterns In a staggered arrangement this

distance is measured parallel to the centre line from the centre of a

lantern on one side of the road to the centre of the next lantern on

the opposite side

I) aaam That portion of the light output of the lantern contained by the

solid angle subtended at the effective light oentre of the lantern

containing the maximum intensity but no intensity less than 90 of

the maximum intensfty

g) Iumjoous Flux The light given by a light source of lantern or received

by a surface irrespective of the direction in which it is distributed

The unit of luminous Flux is the Lumen LM)

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hI j ower Hemispherical FIx or Downward FIIIX The luminous Flux

emitted by a lantem in all directions below the horizontal

il reek Intensity Ratio The ratio of the maximum Intensity to the mean

hemispherical intensity of Ihe light emitted below the horizontal

j) Mean Hemispherjoallnlensi1yen The downward flux divided by 628

(This is the average intensity in the lower hemisphere

k) Intensity Ralio The ratio of the actual intensity in any direction of a

lantem to the mean hemispherical intensity

I) luminous Inleosltyen The light giving power of a lantern in any particUlar

direction The unit of luminous intensity is the Candela (cd) Beam

Center lsocandela Curve Isocendela diagram Polar Curve

mJ Beam center A direction midway between the directions for ~hich

the intensity is 90 percent of the maximum in a vertical plane through

the IOOximum and on a conicsl surfaoe throught the maxlmum

n)lsQcandala curve A curve traced on an imaginary sphere with the

source at its center and joining all tha poillts corresponding to those

direotions in which the luminous intensity is the same or Ii plane

projection of this curve

0) ISQCodea diagram An array of isocandela ourves

p) Polar Curve Curve of light distribution using polar co-ordinates

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2 Materials and Equipment f

f 21 Lanterns ~

~ The supplier must submit the guaranteed letter of these BobY alluminailll r shall be non-corrosive light alloy metal colour if applied shall be stove enamelled finish in

gray or aluminum shadet Reflector if used shall be mirror type and made of smdized aluminum 1

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j sheet Gasket shall be applied on every par where insact is expected to enter into lemp

1 compartment including that at sllpfltter collar The gasket used shall be non-aging andt heat-resistant type transverse and longitude cross~iection drawing of the lIsminair ecaled

11 shall be furnished with the quotation

Refractor [enclosing bowl) if made of the transparent acrylic will not

produce less output due to colour changing within first 6 years of servloe

a) Lanterns she be of the cut-ltlff or thll samimiddotcut-off type as shown on

the Drawings or as specified in the Spacial Provisions Non-cutmiddotoff

lanterns shillI not be used

bJ Unless otherwis~ specified the mounting height shall be not less than

75 meters (or 250) nor more 1han 12 meters (or 400)(

c) Where there is no speed limit on the road or where thare is II speed

limit of more than 60 kilometers per hour the minimum clearance

between columns and the edge of the pavement shall normallv be

16 meters but where this is not reasonably attainable such as

1 bridge locations and cther rejtriotad areas the minimum olearance i i bull i may with the previous permission of the angineer be reduced 10 10~1

lt Z~ meter

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WherB there is a speed limit of less than 60 kilometers per hour the

minimum otearance between columns and the edge of the pavement should be 16

meters but this may be reduoed to

050 meter for crossfaJis of not more than 1 in 40 towards the curb

OSO meter for crossfalls of between 1 in 40 and 1 in 24 towards the

ourb

075 meter for crcssfalls of more than 1 in 24 towards to ourb with the

previous permission of the Engineer

d) Each lantern should normally di rect two beams along the length of

the road rhepolar curves of the lenterns in both horizontal and

vertioal planes snould be smooth and free from any abrupt

variations so that the luminous intensity diminishes smoothly and

progressively from its maximum For centrally mounted lanterns the

beams should ba approximately axial for lanterns mounted at the

sides of tns roadway the maximum toe-in of the beam will be 160

Adequate but not excessiVE Ught should be dirlided towards tha ourbs

and outer edge of the road Wliere area illumination is required using

high mast righting these provisions she not necessarily apply

il) For out-off lanterns the beam should 00 in a direotion about 650 from

the downward vertical The peak Intensity ratio shall be between 20

bull and 40 the intensity ratio in the zone [JO to 3()O below a horizontal

plene through the lantern shali be between 03 and 20 An Intensity

ratio of 12 shall lie between elevations of 72deg imd 7Bofrom the

downwsrd vertical in the vertical plane parallel tomiddotthe lIJ(is of ths

roadway and the horizontal intensity ratio in the same plane shall be

not greater than 015

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f) In the case of semi-out-off lanterns the beam should lie in a direotion

about 750 from the downward vertical The peak intensity ratio shall

be between 18 and 40 The intensity ratio in the 00 to 300 zone

below a horizontal plane thrOJgh the lantern shall be between 03 and

17 An intensity ratio of 12 shall ie between elevations of 780 and

840 from the downward vertical in the vertical plane paralled to the

axis of the roadway and the horizontal intensity ra1io in the same

plana shall be not greater than 06 except that in the case of sodium

lamps the intensity ratio 01 12 shall lie Similarly between BOO and

860 and the horizontal intensity ratio in the same plane shall not

exceed 07

gl The siting of lanterns shall be in accordance with the following table

which gives minimum required illumination Particular care shall be

taken with the siting of lanterns on bends and surnmit vertical ourves

At junctions and roundabouts lantern spacing shall be designed so as

to give at least the minimum illumination required by the following

tables and also lanterns shan be spaced and sited where possible

so as to delineate the cour39 of the roadway plainly to road ussr

approaching from any normal direction without any possible mislending

impressions

The level of illuminetion provided as road junctions and roundabouts bull i

shall be at least as high as that on any of the approach roads and in

the case of roundabouts a minimum Jeve middotof illumination at any curb

Hne of 10 lUmens per square meter shall be provided

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Required minimum Average Horizontal lruminatlon

in lumens per Square Meter (Lumens per Square Footl

Central-Urban Sub-Urban Rural

Areas Areas Areas

High Grade MotorWays 215 (201 150 (14) 1075 (10)

At J~notions 215 (2Q) 215 (20) 150 (14) jgt Main Routes 215 (20) 130 112) 97 (09)

I Seo90dary Routes 130 112) 97 (09) 65 (06)

I Local Roads 97 (09) 65 (06) 21 (Q2bullbullI (Residentiaj

areas only)

The Contractor shalt certify that the design of the installation has been

done in accordanoe with American Standard Practice for Roadway lighting (D 121 shy

1~l pubished by the lIIumnating Engineering Society 345 East 47th Street New York

or in accordance with British Standard Gode of practice CP 1004 of 1963 Street lighting

Published by the British Standards Institution 2 Park Lane London WI except in so tar

8S these have baen varied by the provisions of this speoification or any special provisions

22 Wiring end Switching

The Wiring and switching supplied for control of lanterns (each device bull

controlling B group of lantern) shall be of a type approved by and agreed with thei

Electricity Supply Authority Unless otherwise specified photoelectrio relayswitching shall

be used

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23 Columns and Brackets

ltII Columns shall be of steei construction ai1d shail consist of tapered

round hollow shafts with anchor bases Each column shall be provided with a suitable

cable slot and a weatherproof service door fitted with a tamperproof lock All locks shall

be of the same pattern and six keys shall be provided for them

b) A non-hygroscopic mounting bord cqmposed of electrically insulating

material shall be fitted in an easily acoessibfe position inside the column and ehall be of

c suitable size to take all necessary electrical equipment Adjacent to this mounting bosrd

there shall be prollided on the inside of the column tWo stainless steel studs not less

than 4 centimeters long nor less than 8 millimeters diameter and compi~t8 with stainless

steel look nuts and washers for use as earthing connections

c) Brackets to provide the required Outreach shall be of sufficientlv strollfij ~

bull construction to support the lantern under all normal conditions without significant 1

movement and shall be provided with suitable fittingsto take thelantems When in

positioo bralt~ts shall be inclined upwards at an angla of approximately 1SO to the

horizonaIand shall be fixed to their supports by suitable welding fastenings or wall

C plates

dl Columns and brackets shall be strucrursl steel having the following

mechanical properties

bull Thiokness of sheet steel (min) 4mm

~ Ultimate TeruJlie Strength (min) 41 kgQ1m2 Imiddot

bull Yleld Point (min) 25kgmm2

- Elongation (min) 21

oj Straightness That part of the column above the ground shtll not deviate

from straightness by more than an amount calculatad at II rate of 21 mm per meter of

column length ~

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24 High Mast Lighting

Mounting heights from 20 meters and more shail be High Mast

a) Columns carrying high mast lighting shall be designed to permit the

whole of the lantern carriage to be easily s6fely and quickly lowered to ground level for

maintenance works The columns shail bee designed in accordanoe with British Standard

449 or other internationally aocepted standard for design of structural steelwork in

buildings except that the temporary horizontal defleotion of the top of the column may to

up to 75 of the height above ground In calculating the tending moment at ground

level due to wind load it shall be assumed that the wind speed at B point ten meters

above ground level is 60 kjiometers per hour and the design of the column hall be such

that wind excited oscillations are damped as much as possible Adequate allowance shalf

be Ij1sde for the stresses produced by 6uoh oscllationslt Details shall be given of the

vertical and horizontal load Bnd the bending moment at the foundations

bl The base plate shall ba free from laminations and all dimensions of the

base plate shall be provided including details of the holding down belts A cable entry

hole of not less than 30 cen1imeters diameter shalf be prCNided centrally in each base

middot c plate and the bottom of lile maat shall pass through the base plate and be welded onC

both sides An altsmstiv9 construotion of equal strength may be accepted by the

Engineer but a butt weld on the base plale will not be accepted

Each holding down belt shall be tensioned to the design value and within

the maintenance period the bolts shall be checked and retightened 8S necesllsry after

Whioh the nuts shalf be repainted

oJ The columns shall be deli~ered to the site in the minimum practicable

number of lengths Any joints necessary shall be positioned as near the top of the

Qotumns as possible

11

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d) The lantern carriage shail support the designed number of lanterns

Vithiout significant sway or movement and shall be capable of supporting these lanterns

II cradle with two men for maintenance work The lantern carriage shall be protected

prevent damage to the painted surface of the columns rotation of the carriage during

6IgtIIIJ and lowering shall be prevented and correct location when raised shall be ensured

some positive means It sha be possible to remove the lantem carriage without

illwerirl1l the column

el The lantern carriage shall be raised and lowered by a self sustaining

capable of being operated either by hand or by a portable electrically operated tool

middotIt shall be possible to lock the winch in any position by a simple robust and easily

operated mechanism The worm gear shall have a ratio of at Ieast 201

f) The winch shall have removable handles and it shall be mounted within

the base compartment at a convenient Vcrking height The opening in ths column shall

be of sufficient size to allow proper operation and maintenance of the winch mechanism

A weatherprClOf lab1 shall be fixed in an obvious position wihtn the column base giving

a full list of allmiddot lubricating points on the winch and other mechanism and detail of

recommened lubricants Winches fixed inside the column shall bs provided with a

substantial cover to fully protect them failing dirt and dust

gl A sufficient number of turns of the hoisting cable shall be left on the

winch drum when the carriage is fully lowered to ensure that the cable anchorage on the

drum do~s not take the full load of the carriage at any time

hI the last 30 centimeters of travel to t~e fully raised position of the

carriage shall be by hand operation and for lhis purpose either a limit switch shall be

provided to cut off the power supply to the portable electric tool at the appropriate time

or else some form of indication shall be provided to indicate when the carriage is 30

centimeters from the fully raised position

12

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i The winch cable shall be of stranded stainless steel wires and shall have

sufficient capacity to carry safely the lantern carriage complete with lanterns and a cradle

with two men attached thereto Great oare shall be taken during installation to ensure

that the hoisting cables do not twist or kink and any set twist Of kink shall be sufficient

rflsson for the rejection of that cable

j) All parts of the raising and loWering mechanism which are inaccessible

after erectlon of the oolumns shall be adequately protected against moisture dirt and

corrosion Where neoessary pulleys shall be fitted with shields to prevent the winch

cable becoming displaced Pulleys for electrioal cables shaH be of sufficient dimameter

that the cablll will not be bent to a smaller radius then that permitted by loca relulations

or those of the British Institutiof of Electrical Engineers 14th Edition Where necessary

for continued tfOllbe free operation metal parts shall be of stainless steel or other

approved non-corrodible material

kl When pewsr tool operation is used a suitable power outlet shall be

providad and the operalor shall be adequately safeguarded against any electrical shocks

rhe power tool shall preferably be designed to work on a reduced voltagee end in this

OBse a suitable approved type of translormar shall be provided The power too shall be

designed so that continuOlls operation will cause no harmful effects on either the winch

Of the tool and in the event of power failure the winch shall be self locking Conversion

from power to hand operation and vice versa shall be quick and easy and shall not require

spacial tools Full imOfmallon on tha type of power tool proposed shall be given with the

lender

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25 Protection Against Corrosion

Unless otherwise spceified columns bracket arms and brackets shall be

protected against corrosiOil eithsr by painting or galvanizing as follows

261 Painting

sl Cou~ns and masts shall be treated internalty with hot asphalt under

high pressure so as to givB a complete arid unbroken asphaltic coVering or other approved

anti-corrosion treatment shalt be applied to give at least equally good protection Bas63

shall be similarly treated up to a level of 25 centimeters above ground ievel

b) Before delivery to the site columns masts steelltracKets and external

fitting shall have all external welds ground down ilnd all external surfaces cleaned by shot bull

blasting or other approved method to a whitsmetal finish free of all signs of rust

Immediately folJowil1g t~is treatment the items ahall be painted with two coats of tropical

red lead undercoat followed by two coats of aluminium paint or they shall be treated in a

similar and hot tass affective manner aoceptable to the Enginesr to present subsequent

oorrosion After Grection ali imperfections and damage shall be made good to the

Engineers satisfaction and the items shall be given a final coat of all aluminium paint

262 Galvanizingmiddot

a) Before delivery to the site columns masts steel brackets and extemal

fittings shall have all extemal welds ground down Poles and other ferous materials shall

be galvanized both inside and outside by hot dipped in accordance with ASTM A 625-76

Weight of zinc coating shall not be less han 550 gram per square meter

14

b) Base of columns both inside and outside shali be coated with bituminous paint

up 10 a level o 25 centimeters above the base plate

3 Construction Methods

31 Excavation and Reinstatement

Excavation for cable or conduit laying or for foundations and reinstatement

shall be Darned out in accordance with thaprovisions of Section 25 (Sub-Clause 2632)

of 1hampS6 specifioations Reinstatement shall be suoh that the surface is restored to at

east its original standard

32 Concrete Work

All necessary foundations and footings or other concrete work shall be

carried out in acoordance with Sections 61 (sub-Clause 5112) and 02 of these

specifications Unless otherwise specified on the Drawings or in the Speoial Provisions

ooncrete shall be olass 8 Foundations shail be placed in one operation except that the

top 5 oentimetars may be placed after the superimposed structure is In position The

el(posed portions of foundations shall be formed to present a neat and tidy appearance

and sloped to shed water aV)lay from the structure supported Where existing

obs1ructions prevent the construction 01 foundations as shown on the plans then an

effective alternative may be provided subject to the prior approval of the Engineer

amp Ministry of National Development Department of Highways Specification For Highway

Construction 1970 Bangkok Thailand

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33 Conduits fittings and boxes

Copduits fittings and boxes shall be providsd and installed in accordance

with the provisions of Section 511 of these Speoifications except that chemically stable

tough plastic conduits fittings and boxes aocording to samples previously approved by

the Engineer will be permitted providing thet they do not soften when exposed to high

ambient temperature

The contractor may use alarger size of conduit than that specified at no

extra charge if he wishes but in this case the entire run shall be of the same size No

reducing touplings will be permitted

When metal conduits ara used cuts shall be made square amp11d true and all

couplings shell Ie screwed up until the ends of the conduits are brought together in order

to proVide a good electrical contact throughout The threads on all ferrous metal oonduits

bullsh8l1 be painted with rusT preventing paint before couplings are made up Where themiddot

coating on ferrous metal conduit has been dam~ged In handHng such damaged places

shall be painted with rust prevanting paint before installation

All conduit ends shall be threaded and capped until wiring is started When

caps are removed the threaded ends shall be provided with approved conduit bushings

Conduits shall be laid to a depth of not less than 50 centimeters below

pEIVed footwalks and medians and not less the 75 centimeters below the roadway

surface The location of all conduits at curb lines shall be marked by means of a Y at

laaat 10 centimeters high incised in the face of the curb directly above the conduit

Conduit terminating in iii standards cabine1s or pedestals shaH extend at least 5

C9Iltimeters vertically above the bottom of the box Such conduit shall be sloped towards

the top of the box to facilitate pulling Conduit entering the bottom of the box shall enter

in the direction of the run

16

34 Pull boxes or Junction Boxes

Pull boxes shall be installed as shown on the plans and in any case at not

more than 00 meters intellals The contractormiddotmay install additional pull boxes without

extra charge jf he wishes Pull bo)(es shall be of reinforced concrete not less than 10

centimeters thick and may be of approved pre-cast deSign Reinforced concrete covers

acoured by two recessed brass bolts shaff be used on faatwalks the covers baing

inscribed Street Ughting on the outside Under the roadway covers shall be of steal or

oast iron inscribed as specified middotabove andlaid in II suitable concrete footing to withstand

trecffic loads Metal covers shall be effectivalr earthed to an earthing rod inside the box

Tops of puUboxes ~Ilan beeffectivoaly level with the slrfOunoing paved areas whether

footwslk or roadway but in unpaved areas the tOpl of pull boxes shall be buried 30

oentimeters below groul1d level The bottom of pull boxes shall be bedded in sand and

cement or crushed rock Permanent makers shall be provided and erected

toshow the position of all pull boxes

35 Tasting

A funotional test shari be made on completion of the work n order to

demonStrate thet every part of the equipment and installation fUllctionS as intended and

specJfled This test shall consist of not less ~a~ five nights continuous and satisfaatOlY

operation If any defects or unsatisfactory operation are revealed this condition shalf be

oorrected imd tne test continoued until the required five nights of satisfaotory opera~ion

have been performed

Prior to the functional test tlie contractor shaff carry out thefollowing

tests to the entire satisfaction of the Engineer

1) Each circuit shall be iested for oontinuity

2) Each circuit shall be tested for cething

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3) A m~gger test shall be made between eaoh cirouit and eart) The

Insulation fesistance shall be shown to be at least that specified within the relevant

codes

4) The distribution horizontal illumination valve of specified spacing in eaoh

code item in rale 6flux measured between two iuminair as avery two meters along

longitudinal and transverse road way line are essentially measured to show maxmean

min illuminati and uniformity ratios

Uniformity ratio minimum illumination average illumination

= not less than 126

and maximum illumination

minimum illumination

not more than 61

5) Rainproof Test

The lantern under test shall be mounted in its normal orientation on en

adjustable sUpPOrt as shown in fig 1 so that the fitting is near the center of the arc

desoribed by 1he oscillating tuba

After being switched on for one hour the lantern shllil be subjected to II

spray of water at a temperature not exceeding 200 C and ilt e pressure of approximately

67 Ibsin2 104 kgscm2i the tube being oscillated so as to describe an angle of SO

degrees from the vertical and in both directions from it This treatment shall be continLllld

for 20 nilnutes the fitting being switcher off after 10 minutes

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At tha end of this test there shall be to damage to the lamp or enclosure

and no visible evidence of water having aocumulated it the fitting

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Fig Apparatus for rainprooftest

On the completion of testing the contractor shall supply to the engineer

three copies of as buill plans and circuitdiagrams whicn shall clearly indicated any

modifications which have been made to the original design

4 Measurement

41 Unless a Bill of quantities is provided thjs item will not be measured and payment

shall be made one lumpsum basic

42 When a Bill Of Quantities is provided measurements shall made on the items detailed

In the Sill of quantities completed accepted and neesured in place The unit of

measurement for each item shall be the unit of measurement shown in the Bill of

Ouentitias

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5 Payment

51 The lump sum payment for the street lighting installation shall be full compensation

for furnishing ell materials labour equipment tools supervisiorl testing and incidentals

neossary to complete the work inoluding any necessary backfill foundations restoration

of footwalk roadway curbing and appurtenances damaged or destroyed during

construction The payment shall also cover the cost of design where this Is called for

The ILlmp sum paymEmt shall be deemed to include full compensation for

all additional materials and work not shown on Ihe Drawings or specified which are

nesessary to complete the installation

62 The work measured as provided in 42 shall be paid at Ihe contraot unit price for eacl1

item such price and payment constituting flln compensation for aU materials labour

equipment tools and incidentals nseded to complete the work All materials Bnd work

necessaJY for satisfactory completion of the installation which are not specifically

mentioned in the Bilt of quantities shall be deemed to be included in the items shown

corw~ors 6 Information to be supplied by bidtfelS

61 catalogs at electrioal components lanterns ballast etc

62 Plans and circuit diagrams ground rod connection diagram

S3 Photometric data

631 Utilisation Curve

632 Isoc8ndala diagram bull

633 Horizon~81 isofootcandle diagram

634 Polar light distribution curvs

64 Cataisl of columns BraCKets Base Plates concrete foundations

20

7 Other details of steel columms not mentioned above should comply with British

Standard 1840 1960 The decision shall be made by the Department

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23

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111Jv4jh~mflI1Vjn 1mh

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ih fjJ1lWUIlJn11 B ~1i1

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fl~m11il1~tor BOLT AND NUT yfiJ)IltW)1Jnjflfll2lhfufI~I1IJ~n

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29 lIlllM91lht~lJlJmtriflfllJIN~umiddothllilu1t1~1lJ11~flLliltJ~r1l171uffj 19191192193 194l11 196

210 VOLTAGE DROP ~11u1tlIll1lJ1lJilI~ltIl~1~lnuftl 110

211 011JI1ln1ll~I~1ill4Jil1Juuulw~rl1UtllflUMlflLI11P1lllilf111l11uoffEJ

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135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

bull 1OOOW 1043 Watt

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Page 9: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

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4

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hI j ower Hemispherical FIx or Downward FIIIX The luminous Flux

emitted by a lantem in all directions below the horizontal

il reek Intensity Ratio The ratio of the maximum Intensity to the mean

hemispherical intensity of Ihe light emitted below the horizontal

j) Mean Hemispherjoallnlensi1yen The downward flux divided by 628

(This is the average intensity in the lower hemisphere

k) Intensity Ralio The ratio of the actual intensity in any direction of a

lantem to the mean hemispherical intensity

I) luminous Inleosltyen The light giving power of a lantern in any particUlar

direction The unit of luminous intensity is the Candela (cd) Beam

Center lsocandela Curve Isocendela diagram Polar Curve

mJ Beam center A direction midway between the directions for ~hich

the intensity is 90 percent of the maximum in a vertical plane through

the IOOximum and on a conicsl surfaoe throught the maxlmum

n)lsQcandala curve A curve traced on an imaginary sphere with the

source at its center and joining all tha poillts corresponding to those

direotions in which the luminous intensity is the same or Ii plane

projection of this curve

0) ISQCodea diagram An array of isocandela ourves

p) Polar Curve Curve of light distribution using polar co-ordinates

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2 Materials and Equipment f

f 21 Lanterns ~

~ The supplier must submit the guaranteed letter of these BobY alluminailll r shall be non-corrosive light alloy metal colour if applied shall be stove enamelled finish in

gray or aluminum shadet Reflector if used shall be mirror type and made of smdized aluminum 1

1 ~

j sheet Gasket shall be applied on every par where insact is expected to enter into lemp

1 compartment including that at sllpfltter collar The gasket used shall be non-aging andt heat-resistant type transverse and longitude cross~iection drawing of the lIsminair ecaled

11 shall be furnished with the quotation

Refractor [enclosing bowl) if made of the transparent acrylic will not

produce less output due to colour changing within first 6 years of servloe

a) Lanterns she be of the cut-ltlff or thll samimiddotcut-off type as shown on

the Drawings or as specified in the Spacial Provisions Non-cutmiddotoff

lanterns shillI not be used

bJ Unless otherwis~ specified the mounting height shall be not less than

75 meters (or 250) nor more 1han 12 meters (or 400)(

c) Where there is no speed limit on the road or where thare is II speed

limit of more than 60 kilometers per hour the minimum clearance

between columns and the edge of the pavement shall normallv be

16 meters but where this is not reasonably attainable such as

1 bridge locations and cther rejtriotad areas the minimum olearance i i bull i may with the previous permission of the angineer be reduced 10 10~1

lt Z~ meter

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WherB there is a speed limit of less than 60 kilometers per hour the

minimum otearance between columns and the edge of the pavement should be 16

meters but this may be reduoed to

050 meter for crossfaJis of not more than 1 in 40 towards the curb

OSO meter for crossfalls of between 1 in 40 and 1 in 24 towards the

ourb

075 meter for crcssfalls of more than 1 in 24 towards to ourb with the

previous permission of the Engineer

d) Each lantern should normally di rect two beams along the length of

the road rhepolar curves of the lenterns in both horizontal and

vertioal planes snould be smooth and free from any abrupt

variations so that the luminous intensity diminishes smoothly and

progressively from its maximum For centrally mounted lanterns the

beams should ba approximately axial for lanterns mounted at the

sides of tns roadway the maximum toe-in of the beam will be 160

Adequate but not excessiVE Ught should be dirlided towards tha ourbs

and outer edge of the road Wliere area illumination is required using

high mast righting these provisions she not necessarily apply

il) For out-off lanterns the beam should 00 in a direotion about 650 from

the downward vertical The peak Intensity ratio shall be between 20

bull and 40 the intensity ratio in the zone [JO to 3()O below a horizontal

plene through the lantern shali be between 03 and 20 An Intensity

ratio of 12 shall lie between elevations of 72deg imd 7Bofrom the

downwsrd vertical in the vertical plane parallel tomiddotthe lIJ(is of ths

roadway and the horizontal intensity ratio in the same plane shall be

not greater than 015

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f) In the case of semi-out-off lanterns the beam should lie in a direotion

about 750 from the downward vertical The peak intensity ratio shall

be between 18 and 40 The intensity ratio in the 00 to 300 zone

below a horizontal plane thrOJgh the lantern shall be between 03 and

17 An intensity ratio of 12 shall ie between elevations of 780 and

840 from the downward vertical in the vertical plane paralled to the

axis of the roadway and the horizontal intensity ra1io in the same

plana shall be not greater than 06 except that in the case of sodium

lamps the intensity ratio 01 12 shall lie Similarly between BOO and

860 and the horizontal intensity ratio in the same plane shall not

exceed 07

gl The siting of lanterns shall be in accordance with the following table

which gives minimum required illumination Particular care shall be

taken with the siting of lanterns on bends and surnmit vertical ourves

At junctions and roundabouts lantern spacing shall be designed so as

to give at least the minimum illumination required by the following

tables and also lanterns shan be spaced and sited where possible

so as to delineate the cour39 of the roadway plainly to road ussr

approaching from any normal direction without any possible mislending

impressions

The level of illuminetion provided as road junctions and roundabouts bull i

shall be at least as high as that on any of the approach roads and in

the case of roundabouts a minimum Jeve middotof illumination at any curb

Hne of 10 lUmens per square meter shall be provided

C

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B

Required minimum Average Horizontal lruminatlon

in lumens per Square Meter (Lumens per Square Footl

Central-Urban Sub-Urban Rural

Areas Areas Areas

High Grade MotorWays 215 (201 150 (14) 1075 (10)

At J~notions 215 (2Q) 215 (20) 150 (14) jgt Main Routes 215 (20) 130 112) 97 (09)

I Seo90dary Routes 130 112) 97 (09) 65 (06)

I Local Roads 97 (09) 65 (06) 21 (Q2bullbullI (Residentiaj

areas only)

The Contractor shalt certify that the design of the installation has been

done in accordanoe with American Standard Practice for Roadway lighting (D 121 shy

1~l pubished by the lIIumnating Engineering Society 345 East 47th Street New York

or in accordance with British Standard Gode of practice CP 1004 of 1963 Street lighting

Published by the British Standards Institution 2 Park Lane London WI except in so tar

8S these have baen varied by the provisions of this speoification or any special provisions

22 Wiring end Switching

The Wiring and switching supplied for control of lanterns (each device bull

controlling B group of lantern) shall be of a type approved by and agreed with thei

Electricity Supply Authority Unless otherwise specified photoelectrio relayswitching shall

be used

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9

23 Columns and Brackets

ltII Columns shall be of steei construction ai1d shail consist of tapered

round hollow shafts with anchor bases Each column shall be provided with a suitable

cable slot and a weatherproof service door fitted with a tamperproof lock All locks shall

be of the same pattern and six keys shall be provided for them

b) A non-hygroscopic mounting bord cqmposed of electrically insulating

material shall be fitted in an easily acoessibfe position inside the column and ehall be of

c suitable size to take all necessary electrical equipment Adjacent to this mounting bosrd

there shall be prollided on the inside of the column tWo stainless steel studs not less

than 4 centimeters long nor less than 8 millimeters diameter and compi~t8 with stainless

steel look nuts and washers for use as earthing connections

c) Brackets to provide the required Outreach shall be of sufficientlv strollfij ~

bull construction to support the lantern under all normal conditions without significant 1

movement and shall be provided with suitable fittingsto take thelantems When in

positioo bralt~ts shall be inclined upwards at an angla of approximately 1SO to the

horizonaIand shall be fixed to their supports by suitable welding fastenings or wall

C plates

dl Columns and brackets shall be strucrursl steel having the following

mechanical properties

bull Thiokness of sheet steel (min) 4mm

~ Ultimate TeruJlie Strength (min) 41 kgQ1m2 Imiddot

bull Yleld Point (min) 25kgmm2

- Elongation (min) 21

oj Straightness That part of the column above the ground shtll not deviate

from straightness by more than an amount calculatad at II rate of 21 mm per meter of

column length ~

lmiddotmiddotmiddoti~- I shy

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bull 10

24 High Mast Lighting

Mounting heights from 20 meters and more shail be High Mast

a) Columns carrying high mast lighting shall be designed to permit the

whole of the lantern carriage to be easily s6fely and quickly lowered to ground level for

maintenance works The columns shail bee designed in accordanoe with British Standard

449 or other internationally aocepted standard for design of structural steelwork in

buildings except that the temporary horizontal defleotion of the top of the column may to

up to 75 of the height above ground In calculating the tending moment at ground

level due to wind load it shall be assumed that the wind speed at B point ten meters

above ground level is 60 kjiometers per hour and the design of the column hall be such

that wind excited oscillations are damped as much as possible Adequate allowance shalf

be Ij1sde for the stresses produced by 6uoh oscllationslt Details shall be given of the

vertical and horizontal load Bnd the bending moment at the foundations

bl The base plate shall ba free from laminations and all dimensions of the

base plate shall be provided including details of the holding down belts A cable entry

hole of not less than 30 cen1imeters diameter shalf be prCNided centrally in each base

middot c plate and the bottom of lile maat shall pass through the base plate and be welded onC

both sides An altsmstiv9 construotion of equal strength may be accepted by the

Engineer but a butt weld on the base plale will not be accepted

Each holding down belt shall be tensioned to the design value and within

the maintenance period the bolts shall be checked and retightened 8S necesllsry after

Whioh the nuts shalf be repainted

oJ The columns shall be deli~ered to the site in the minimum practicable

number of lengths Any joints necessary shall be positioned as near the top of the

Qotumns as possible

11

(

d) The lantern carriage shail support the designed number of lanterns

Vithiout significant sway or movement and shall be capable of supporting these lanterns

II cradle with two men for maintenance work The lantern carriage shall be protected

prevent damage to the painted surface of the columns rotation of the carriage during

6IgtIIIJ and lowering shall be prevented and correct location when raised shall be ensured

some positive means It sha be possible to remove the lantem carriage without

illwerirl1l the column

el The lantern carriage shall be raised and lowered by a self sustaining

capable of being operated either by hand or by a portable electrically operated tool

middotIt shall be possible to lock the winch in any position by a simple robust and easily

operated mechanism The worm gear shall have a ratio of at Ieast 201

f) The winch shall have removable handles and it shall be mounted within

the base compartment at a convenient Vcrking height The opening in ths column shall

be of sufficient size to allow proper operation and maintenance of the winch mechanism

A weatherprClOf lab1 shall be fixed in an obvious position wihtn the column base giving

a full list of allmiddot lubricating points on the winch and other mechanism and detail of

recommened lubricants Winches fixed inside the column shall bs provided with a

substantial cover to fully protect them failing dirt and dust

gl A sufficient number of turns of the hoisting cable shall be left on the

winch drum when the carriage is fully lowered to ensure that the cable anchorage on the

drum do~s not take the full load of the carriage at any time

hI the last 30 centimeters of travel to t~e fully raised position of the

carriage shall be by hand operation and for lhis purpose either a limit switch shall be

provided to cut off the power supply to the portable electric tool at the appropriate time

or else some form of indication shall be provided to indicate when the carriage is 30

centimeters from the fully raised position

12

c

c

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i The winch cable shall be of stranded stainless steel wires and shall have

sufficient capacity to carry safely the lantern carriage complete with lanterns and a cradle

with two men attached thereto Great oare shall be taken during installation to ensure

that the hoisting cables do not twist or kink and any set twist Of kink shall be sufficient

rflsson for the rejection of that cable

j) All parts of the raising and loWering mechanism which are inaccessible

after erectlon of the oolumns shall be adequately protected against moisture dirt and

corrosion Where neoessary pulleys shall be fitted with shields to prevent the winch

cable becoming displaced Pulleys for electrioal cables shaH be of sufficient dimameter

that the cablll will not be bent to a smaller radius then that permitted by loca relulations

or those of the British Institutiof of Electrical Engineers 14th Edition Where necessary

for continued tfOllbe free operation metal parts shall be of stainless steel or other

approved non-corrodible material

kl When pewsr tool operation is used a suitable power outlet shall be

providad and the operalor shall be adequately safeguarded against any electrical shocks

rhe power tool shall preferably be designed to work on a reduced voltagee end in this

OBse a suitable approved type of translormar shall be provided The power too shall be

designed so that continuOlls operation will cause no harmful effects on either the winch

Of the tool and in the event of power failure the winch shall be self locking Conversion

from power to hand operation and vice versa shall be quick and easy and shall not require

spacial tools Full imOfmallon on tha type of power tool proposed shall be given with the

lender

c I J J middot1 I

j

c

13

bull

25 Protection Against Corrosion

Unless otherwise spceified columns bracket arms and brackets shall be

protected against corrosiOil eithsr by painting or galvanizing as follows

261 Painting

sl Cou~ns and masts shall be treated internalty with hot asphalt under

high pressure so as to givB a complete arid unbroken asphaltic coVering or other approved

anti-corrosion treatment shalt be applied to give at least equally good protection Bas63

shall be similarly treated up to a level of 25 centimeters above ground ievel

b) Before delivery to the site columns masts steelltracKets and external

fitting shall have all external welds ground down ilnd all external surfaces cleaned by shot bull

blasting or other approved method to a whitsmetal finish free of all signs of rust

Immediately folJowil1g t~is treatment the items ahall be painted with two coats of tropical

red lead undercoat followed by two coats of aluminium paint or they shall be treated in a

similar and hot tass affective manner aoceptable to the Enginesr to present subsequent

oorrosion After Grection ali imperfections and damage shall be made good to the

Engineers satisfaction and the items shall be given a final coat of all aluminium paint

262 Galvanizingmiddot

a) Before delivery to the site columns masts steel brackets and extemal

fittings shall have all extemal welds ground down Poles and other ferous materials shall

be galvanized both inside and outside by hot dipped in accordance with ASTM A 625-76

Weight of zinc coating shall not be less han 550 gram per square meter

14

b) Base of columns both inside and outside shali be coated with bituminous paint

up 10 a level o 25 centimeters above the base plate

3 Construction Methods

31 Excavation and Reinstatement

Excavation for cable or conduit laying or for foundations and reinstatement

shall be Darned out in accordance with thaprovisions of Section 25 (Sub-Clause 2632)

of 1hampS6 specifioations Reinstatement shall be suoh that the surface is restored to at

east its original standard

32 Concrete Work

All necessary foundations and footings or other concrete work shall be

carried out in acoordance with Sections 61 (sub-Clause 5112) and 02 of these

specifications Unless otherwise specified on the Drawings or in the Speoial Provisions

ooncrete shall be olass 8 Foundations shail be placed in one operation except that the

top 5 oentimetars may be placed after the superimposed structure is In position The

el(posed portions of foundations shall be formed to present a neat and tidy appearance

and sloped to shed water aV)lay from the structure supported Where existing

obs1ructions prevent the construction 01 foundations as shown on the plans then an

effective alternative may be provided subject to the prior approval of the Engineer

amp Ministry of National Development Department of Highways Specification For Highway

Construction 1970 Bangkok Thailand

- shy

15

33 Conduits fittings and boxes

Copduits fittings and boxes shall be providsd and installed in accordance

with the provisions of Section 511 of these Speoifications except that chemically stable

tough plastic conduits fittings and boxes aocording to samples previously approved by

the Engineer will be permitted providing thet they do not soften when exposed to high

ambient temperature

The contractor may use alarger size of conduit than that specified at no

extra charge if he wishes but in this case the entire run shall be of the same size No

reducing touplings will be permitted

When metal conduits ara used cuts shall be made square amp11d true and all

couplings shell Ie screwed up until the ends of the conduits are brought together in order

to proVide a good electrical contact throughout The threads on all ferrous metal oonduits

bullsh8l1 be painted with rusT preventing paint before couplings are made up Where themiddot

coating on ferrous metal conduit has been dam~ged In handHng such damaged places

shall be painted with rust prevanting paint before installation

All conduit ends shall be threaded and capped until wiring is started When

caps are removed the threaded ends shall be provided with approved conduit bushings

Conduits shall be laid to a depth of not less than 50 centimeters below

pEIVed footwalks and medians and not less the 75 centimeters below the roadway

surface The location of all conduits at curb lines shall be marked by means of a Y at

laaat 10 centimeters high incised in the face of the curb directly above the conduit

Conduit terminating in iii standards cabine1s or pedestals shaH extend at least 5

C9Iltimeters vertically above the bottom of the box Such conduit shall be sloped towards

the top of the box to facilitate pulling Conduit entering the bottom of the box shall enter

in the direction of the run

16

34 Pull boxes or Junction Boxes

Pull boxes shall be installed as shown on the plans and in any case at not

more than 00 meters intellals The contractormiddotmay install additional pull boxes without

extra charge jf he wishes Pull bo)(es shall be of reinforced concrete not less than 10

centimeters thick and may be of approved pre-cast deSign Reinforced concrete covers

acoured by two recessed brass bolts shaff be used on faatwalks the covers baing

inscribed Street Ughting on the outside Under the roadway covers shall be of steal or

oast iron inscribed as specified middotabove andlaid in II suitable concrete footing to withstand

trecffic loads Metal covers shall be effectivalr earthed to an earthing rod inside the box

Tops of puUboxes ~Ilan beeffectivoaly level with the slrfOunoing paved areas whether

footwslk or roadway but in unpaved areas the tOpl of pull boxes shall be buried 30

oentimeters below groul1d level The bottom of pull boxes shall be bedded in sand and

cement or crushed rock Permanent makers shall be provided and erected

toshow the position of all pull boxes

35 Tasting

A funotional test shari be made on completion of the work n order to

demonStrate thet every part of the equipment and installation fUllctionS as intended and

specJfled This test shall consist of not less ~a~ five nights continuous and satisfaatOlY

operation If any defects or unsatisfactory operation are revealed this condition shalf be

oorrected imd tne test continoued until the required five nights of satisfaotory opera~ion

have been performed

Prior to the functional test tlie contractor shaff carry out thefollowing

tests to the entire satisfaction of the Engineer

1) Each circuit shall be iested for oontinuity

2) Each circuit shall be tested for cething

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17

1

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3) A m~gger test shall be made between eaoh cirouit and eart) The

Insulation fesistance shall be shown to be at least that specified within the relevant

codes

4) The distribution horizontal illumination valve of specified spacing in eaoh

code item in rale 6flux measured between two iuminair as avery two meters along

longitudinal and transverse road way line are essentially measured to show maxmean

min illuminati and uniformity ratios

Uniformity ratio minimum illumination average illumination

= not less than 126

and maximum illumination

minimum illumination

not more than 61

5) Rainproof Test

The lantern under test shall be mounted in its normal orientation on en

adjustable sUpPOrt as shown in fig 1 so that the fitting is near the center of the arc

desoribed by 1he oscillating tuba

After being switched on for one hour the lantern shllil be subjected to II

spray of water at a temperature not exceeding 200 C and ilt e pressure of approximately

67 Ibsin2 104 kgscm2i the tube being oscillated so as to describe an angle of SO

degrees from the vertical and in both directions from it This treatment shall be continLllld

for 20 nilnutes the fitting being switcher off after 10 minutes

- shy

18

i

At tha end of this test there shall be to damage to the lamp or enclosure

and no visible evidence of water having aocumulated it the fitting

04 rnm dlo hDln

Fig Apparatus for rainprooftest

On the completion of testing the contractor shall supply to the engineer

three copies of as buill plans and circuitdiagrams whicn shall clearly indicated any

modifications which have been made to the original design

4 Measurement

41 Unless a Bill of quantities is provided thjs item will not be measured and payment

shall be made one lumpsum basic

42 When a Bill Of Quantities is provided measurements shall made on the items detailed

In the Sill of quantities completed accepted and neesured in place The unit of

measurement for each item shall be the unit of measurement shown in the Bill of

Ouentitias

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19

bull

5 Payment

51 The lump sum payment for the street lighting installation shall be full compensation

for furnishing ell materials labour equipment tools supervisiorl testing and incidentals

neossary to complete the work inoluding any necessary backfill foundations restoration

of footwalk roadway curbing and appurtenances damaged or destroyed during

construction The payment shall also cover the cost of design where this Is called for

The ILlmp sum paymEmt shall be deemed to include full compensation for

all additional materials and work not shown on Ihe Drawings or specified which are

nesessary to complete the installation

62 The work measured as provided in 42 shall be paid at Ihe contraot unit price for eacl1

item such price and payment constituting flln compensation for aU materials labour

equipment tools and incidentals nseded to complete the work All materials Bnd work

necessaJY for satisfactory completion of the installation which are not specifically

mentioned in the Bilt of quantities shall be deemed to be included in the items shown

corw~ors 6 Information to be supplied by bidtfelS

61 catalogs at electrioal components lanterns ballast etc

62 Plans and circuit diagrams ground rod connection diagram

S3 Photometric data

631 Utilisation Curve

632 Isoc8ndala diagram bull

633 Horizon~81 isofootcandle diagram

634 Polar light distribution curvs

64 Cataisl of columns BraCKets Base Plates concrete foundations

20

7 Other details of steel columms not mentioned above should comply with British

Standard 1840 1960 The decision shall be made by the Department

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21 MAIN INCOMING SWITCH BOARD xlllulbJ~)lJ1lf1f1L1iWI~1llJnU 11 ~ J ~ lV I~ bull J ~ lJt 11 1-11flvnnl~~~YlIWlflVIlUIi m1lj lU~1LLU~I1I1j1lm IUnl1I1lfll

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lrlh1Ifth~U~1l AMPERE jJfl~ilifl4rill1 ~-l~ ~lJ~1iIUIlii1l~fl~WUllf)n-i1 ~ ~ t - Il1 I - ~ Jv 4 fIl1l-l~ flflUJIll1 ulI~I~lil-lLIIIlJfl1 fJ lJ Lm I1Utl1YllfI1l1llllB-4l~ 1 lI~I t

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30middot 60 loitlelUJlIl1 llilpoundlltiltffregmiddotwiltluf11t1fl1atoyenU1tJ1N 160 UJ911 rilLInll

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rZlalflll bUlIil 15 Yl4U MlJrImiddota1lEJIlUIUlJUfJltliIlU~IlEJ

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27 M~~raquo~jt1l~minmltllllliiP1llliJifl~3j CARTRIDG E FUSE Llh~middothllnlJ 8 17 ehutfl~~~ll111 rnlllJ 1~1~~FllIiWItifltlUPIJ1~Jfl2ltJ1U1n Wlnu 10 ~bull~ ~1 1 I~~ tvlJil CARTRIDGE FUSE l-t1e CIRCUIT BREAKER

111)1) ~ lJl-lluvi1Utl-l~~Ejnu 28 n111ia LltlmlJtJ~tHi1IJJlJ ~fBN111flJt~tlnw1liUlt f) rlU~ 18 AlU

lU1lt~tl~lHUfl ~J I-l1~~Ln1tJrll-ltfrNf~Wlll~Yi1U Ilill~lIitltUOfllN ~ ~

tflfl1lJlf~nfl (CONNECTION BOX) lIill1lilllnWu1L~h~lilthuu LI1l2ltrt bull J 4 11 ~ 1 I_

fltllUl n~11l11 111 WIRE JOINT SIllfjJfl~VIl ~1lllUPljJU l-t7poundluUUuUmI

L1tHililn~ LLft)UliUliltliI~~tih~1 ~tlrnfJU~1lfuli~H11 tI

(INSULATING SEALING COMPOUND) ILfl~Uyjlllill TAPE IIiWtlhl1nnfu

fIltllri~1ttMIIl1lln 1 Ull~ ~ft)+tJrl tlil11ilyjlhDll~ntilllnlJt~flh~ llfl~Il)nUlvrfJI~lJVPl~laRIGID CLAMP llll RIGID CLAMP BACK middotflfI

vlllnuillNfiTl-Ul ll1ulllUYjntRl- (EXANSION Bom dll-lfUfltYllIJ

fl~m11il1~tor BOLT AND NUT yfiJ)IltW)1Jnjflfll2lhfufI~I1IJ~n

tg)tJM~ua tIllwfflz4J1liha)h~ flUWlnunltj1 50 L4u~ rtI Pl1

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210 VOLTAGE DROP ~11u1tlIll1lJ1lJilI~ltIl~1~lnuftl 110

211 011JI1ln1ll~I~1ill4Jil1Juuulw~rl1UtllflUMlflLI11P1lllilf111l11uoffEJ

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bull Na 86W 108 Watt

135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

bull 1OOOW 1043 Watt

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Page 10: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

f ~

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it ~I middot ~

~ ~ pound

5

2 Materials and Equipment f

f 21 Lanterns ~

~ The supplier must submit the guaranteed letter of these BobY alluminailll r shall be non-corrosive light alloy metal colour if applied shall be stove enamelled finish in

gray or aluminum shadet Reflector if used shall be mirror type and made of smdized aluminum 1

1 ~

j sheet Gasket shall be applied on every par where insact is expected to enter into lemp

1 compartment including that at sllpfltter collar The gasket used shall be non-aging andt heat-resistant type transverse and longitude cross~iection drawing of the lIsminair ecaled

11 shall be furnished with the quotation

Refractor [enclosing bowl) if made of the transparent acrylic will not

produce less output due to colour changing within first 6 years of servloe

a) Lanterns she be of the cut-ltlff or thll samimiddotcut-off type as shown on

the Drawings or as specified in the Spacial Provisions Non-cutmiddotoff

lanterns shillI not be used

bJ Unless otherwis~ specified the mounting height shall be not less than

75 meters (or 250) nor more 1han 12 meters (or 400)(

c) Where there is no speed limit on the road or where thare is II speed

limit of more than 60 kilometers per hour the minimum clearance

between columns and the edge of the pavement shall normallv be

16 meters but where this is not reasonably attainable such as

1 bridge locations and cther rejtriotad areas the minimum olearance i i bull i may with the previous permission of the angineer be reduced 10 10~1

lt Z~ meter

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WherB there is a speed limit of less than 60 kilometers per hour the

minimum otearance between columns and the edge of the pavement should be 16

meters but this may be reduoed to

050 meter for crossfaJis of not more than 1 in 40 towards the curb

OSO meter for crossfalls of between 1 in 40 and 1 in 24 towards the

ourb

075 meter for crcssfalls of more than 1 in 24 towards to ourb with the

previous permission of the Engineer

d) Each lantern should normally di rect two beams along the length of

the road rhepolar curves of the lenterns in both horizontal and

vertioal planes snould be smooth and free from any abrupt

variations so that the luminous intensity diminishes smoothly and

progressively from its maximum For centrally mounted lanterns the

beams should ba approximately axial for lanterns mounted at the

sides of tns roadway the maximum toe-in of the beam will be 160

Adequate but not excessiVE Ught should be dirlided towards tha ourbs

and outer edge of the road Wliere area illumination is required using

high mast righting these provisions she not necessarily apply

il) For out-off lanterns the beam should 00 in a direotion about 650 from

the downward vertical The peak Intensity ratio shall be between 20

bull and 40 the intensity ratio in the zone [JO to 3()O below a horizontal

plene through the lantern shali be between 03 and 20 An Intensity

ratio of 12 shall lie between elevations of 72deg imd 7Bofrom the

downwsrd vertical in the vertical plane parallel tomiddotthe lIJ(is of ths

roadway and the horizontal intensity ratio in the same plane shall be

not greater than 015

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f) In the case of semi-out-off lanterns the beam should lie in a direotion

about 750 from the downward vertical The peak intensity ratio shall

be between 18 and 40 The intensity ratio in the 00 to 300 zone

below a horizontal plane thrOJgh the lantern shall be between 03 and

17 An intensity ratio of 12 shall ie between elevations of 780 and

840 from the downward vertical in the vertical plane paralled to the

axis of the roadway and the horizontal intensity ra1io in the same

plana shall be not greater than 06 except that in the case of sodium

lamps the intensity ratio 01 12 shall lie Similarly between BOO and

860 and the horizontal intensity ratio in the same plane shall not

exceed 07

gl The siting of lanterns shall be in accordance with the following table

which gives minimum required illumination Particular care shall be

taken with the siting of lanterns on bends and surnmit vertical ourves

At junctions and roundabouts lantern spacing shall be designed so as

to give at least the minimum illumination required by the following

tables and also lanterns shan be spaced and sited where possible

so as to delineate the cour39 of the roadway plainly to road ussr

approaching from any normal direction without any possible mislending

impressions

The level of illuminetion provided as road junctions and roundabouts bull i

shall be at least as high as that on any of the approach roads and in

the case of roundabouts a minimum Jeve middotof illumination at any curb

Hne of 10 lUmens per square meter shall be provided

C

c

B

Required minimum Average Horizontal lruminatlon

in lumens per Square Meter (Lumens per Square Footl

Central-Urban Sub-Urban Rural

Areas Areas Areas

High Grade MotorWays 215 (201 150 (14) 1075 (10)

At J~notions 215 (2Q) 215 (20) 150 (14) jgt Main Routes 215 (20) 130 112) 97 (09)

I Seo90dary Routes 130 112) 97 (09) 65 (06)

I Local Roads 97 (09) 65 (06) 21 (Q2bullbullI (Residentiaj

areas only)

The Contractor shalt certify that the design of the installation has been

done in accordanoe with American Standard Practice for Roadway lighting (D 121 shy

1~l pubished by the lIIumnating Engineering Society 345 East 47th Street New York

or in accordance with British Standard Gode of practice CP 1004 of 1963 Street lighting

Published by the British Standards Institution 2 Park Lane London WI except in so tar

8S these have baen varied by the provisions of this speoification or any special provisions

22 Wiring end Switching

The Wiring and switching supplied for control of lanterns (each device bull

controlling B group of lantern) shall be of a type approved by and agreed with thei

Electricity Supply Authority Unless otherwise specified photoelectrio relayswitching shall

be used

shy

9

23 Columns and Brackets

ltII Columns shall be of steei construction ai1d shail consist of tapered

round hollow shafts with anchor bases Each column shall be provided with a suitable

cable slot and a weatherproof service door fitted with a tamperproof lock All locks shall

be of the same pattern and six keys shall be provided for them

b) A non-hygroscopic mounting bord cqmposed of electrically insulating

material shall be fitted in an easily acoessibfe position inside the column and ehall be of

c suitable size to take all necessary electrical equipment Adjacent to this mounting bosrd

there shall be prollided on the inside of the column tWo stainless steel studs not less

than 4 centimeters long nor less than 8 millimeters diameter and compi~t8 with stainless

steel look nuts and washers for use as earthing connections

c) Brackets to provide the required Outreach shall be of sufficientlv strollfij ~

bull construction to support the lantern under all normal conditions without significant 1

movement and shall be provided with suitable fittingsto take thelantems When in

positioo bralt~ts shall be inclined upwards at an angla of approximately 1SO to the

horizonaIand shall be fixed to their supports by suitable welding fastenings or wall

C plates

dl Columns and brackets shall be strucrursl steel having the following

mechanical properties

bull Thiokness of sheet steel (min) 4mm

~ Ultimate TeruJlie Strength (min) 41 kgQ1m2 Imiddot

bull Yleld Point (min) 25kgmm2

- Elongation (min) 21

oj Straightness That part of the column above the ground shtll not deviate

from straightness by more than an amount calculatad at II rate of 21 mm per meter of

column length ~

lmiddotmiddotmiddoti~- I shy

~

bull 10

24 High Mast Lighting

Mounting heights from 20 meters and more shail be High Mast

a) Columns carrying high mast lighting shall be designed to permit the

whole of the lantern carriage to be easily s6fely and quickly lowered to ground level for

maintenance works The columns shail bee designed in accordanoe with British Standard

449 or other internationally aocepted standard for design of structural steelwork in

buildings except that the temporary horizontal defleotion of the top of the column may to

up to 75 of the height above ground In calculating the tending moment at ground

level due to wind load it shall be assumed that the wind speed at B point ten meters

above ground level is 60 kjiometers per hour and the design of the column hall be such

that wind excited oscillations are damped as much as possible Adequate allowance shalf

be Ij1sde for the stresses produced by 6uoh oscllationslt Details shall be given of the

vertical and horizontal load Bnd the bending moment at the foundations

bl The base plate shall ba free from laminations and all dimensions of the

base plate shall be provided including details of the holding down belts A cable entry

hole of not less than 30 cen1imeters diameter shalf be prCNided centrally in each base

middot c plate and the bottom of lile maat shall pass through the base plate and be welded onC

both sides An altsmstiv9 construotion of equal strength may be accepted by the

Engineer but a butt weld on the base plale will not be accepted

Each holding down belt shall be tensioned to the design value and within

the maintenance period the bolts shall be checked and retightened 8S necesllsry after

Whioh the nuts shalf be repainted

oJ The columns shall be deli~ered to the site in the minimum practicable

number of lengths Any joints necessary shall be positioned as near the top of the

Qotumns as possible

11

(

d) The lantern carriage shail support the designed number of lanterns

Vithiout significant sway or movement and shall be capable of supporting these lanterns

II cradle with two men for maintenance work The lantern carriage shall be protected

prevent damage to the painted surface of the columns rotation of the carriage during

6IgtIIIJ and lowering shall be prevented and correct location when raised shall be ensured

some positive means It sha be possible to remove the lantem carriage without

illwerirl1l the column

el The lantern carriage shall be raised and lowered by a self sustaining

capable of being operated either by hand or by a portable electrically operated tool

middotIt shall be possible to lock the winch in any position by a simple robust and easily

operated mechanism The worm gear shall have a ratio of at Ieast 201

f) The winch shall have removable handles and it shall be mounted within

the base compartment at a convenient Vcrking height The opening in ths column shall

be of sufficient size to allow proper operation and maintenance of the winch mechanism

A weatherprClOf lab1 shall be fixed in an obvious position wihtn the column base giving

a full list of allmiddot lubricating points on the winch and other mechanism and detail of

recommened lubricants Winches fixed inside the column shall bs provided with a

substantial cover to fully protect them failing dirt and dust

gl A sufficient number of turns of the hoisting cable shall be left on the

winch drum when the carriage is fully lowered to ensure that the cable anchorage on the

drum do~s not take the full load of the carriage at any time

hI the last 30 centimeters of travel to t~e fully raised position of the

carriage shall be by hand operation and for lhis purpose either a limit switch shall be

provided to cut off the power supply to the portable electric tool at the appropriate time

or else some form of indication shall be provided to indicate when the carriage is 30

centimeters from the fully raised position

12

c

c

y

i The winch cable shall be of stranded stainless steel wires and shall have

sufficient capacity to carry safely the lantern carriage complete with lanterns and a cradle

with two men attached thereto Great oare shall be taken during installation to ensure

that the hoisting cables do not twist or kink and any set twist Of kink shall be sufficient

rflsson for the rejection of that cable

j) All parts of the raising and loWering mechanism which are inaccessible

after erectlon of the oolumns shall be adequately protected against moisture dirt and

corrosion Where neoessary pulleys shall be fitted with shields to prevent the winch

cable becoming displaced Pulleys for electrioal cables shaH be of sufficient dimameter

that the cablll will not be bent to a smaller radius then that permitted by loca relulations

or those of the British Institutiof of Electrical Engineers 14th Edition Where necessary

for continued tfOllbe free operation metal parts shall be of stainless steel or other

approved non-corrodible material

kl When pewsr tool operation is used a suitable power outlet shall be

providad and the operalor shall be adequately safeguarded against any electrical shocks

rhe power tool shall preferably be designed to work on a reduced voltagee end in this

OBse a suitable approved type of translormar shall be provided The power too shall be

designed so that continuOlls operation will cause no harmful effects on either the winch

Of the tool and in the event of power failure the winch shall be self locking Conversion

from power to hand operation and vice versa shall be quick and easy and shall not require

spacial tools Full imOfmallon on tha type of power tool proposed shall be given with the

lender

c I J J middot1 I

j

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13

bull

25 Protection Against Corrosion

Unless otherwise spceified columns bracket arms and brackets shall be

protected against corrosiOil eithsr by painting or galvanizing as follows

261 Painting

sl Cou~ns and masts shall be treated internalty with hot asphalt under

high pressure so as to givB a complete arid unbroken asphaltic coVering or other approved

anti-corrosion treatment shalt be applied to give at least equally good protection Bas63

shall be similarly treated up to a level of 25 centimeters above ground ievel

b) Before delivery to the site columns masts steelltracKets and external

fitting shall have all external welds ground down ilnd all external surfaces cleaned by shot bull

blasting or other approved method to a whitsmetal finish free of all signs of rust

Immediately folJowil1g t~is treatment the items ahall be painted with two coats of tropical

red lead undercoat followed by two coats of aluminium paint or they shall be treated in a

similar and hot tass affective manner aoceptable to the Enginesr to present subsequent

oorrosion After Grection ali imperfections and damage shall be made good to the

Engineers satisfaction and the items shall be given a final coat of all aluminium paint

262 Galvanizingmiddot

a) Before delivery to the site columns masts steel brackets and extemal

fittings shall have all extemal welds ground down Poles and other ferous materials shall

be galvanized both inside and outside by hot dipped in accordance with ASTM A 625-76

Weight of zinc coating shall not be less han 550 gram per square meter

14

b) Base of columns both inside and outside shali be coated with bituminous paint

up 10 a level o 25 centimeters above the base plate

3 Construction Methods

31 Excavation and Reinstatement

Excavation for cable or conduit laying or for foundations and reinstatement

shall be Darned out in accordance with thaprovisions of Section 25 (Sub-Clause 2632)

of 1hampS6 specifioations Reinstatement shall be suoh that the surface is restored to at

east its original standard

32 Concrete Work

All necessary foundations and footings or other concrete work shall be

carried out in acoordance with Sections 61 (sub-Clause 5112) and 02 of these

specifications Unless otherwise specified on the Drawings or in the Speoial Provisions

ooncrete shall be olass 8 Foundations shail be placed in one operation except that the

top 5 oentimetars may be placed after the superimposed structure is In position The

el(posed portions of foundations shall be formed to present a neat and tidy appearance

and sloped to shed water aV)lay from the structure supported Where existing

obs1ructions prevent the construction 01 foundations as shown on the plans then an

effective alternative may be provided subject to the prior approval of the Engineer

amp Ministry of National Development Department of Highways Specification For Highway

Construction 1970 Bangkok Thailand

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33 Conduits fittings and boxes

Copduits fittings and boxes shall be providsd and installed in accordance

with the provisions of Section 511 of these Speoifications except that chemically stable

tough plastic conduits fittings and boxes aocording to samples previously approved by

the Engineer will be permitted providing thet they do not soften when exposed to high

ambient temperature

The contractor may use alarger size of conduit than that specified at no

extra charge if he wishes but in this case the entire run shall be of the same size No

reducing touplings will be permitted

When metal conduits ara used cuts shall be made square amp11d true and all

couplings shell Ie screwed up until the ends of the conduits are brought together in order

to proVide a good electrical contact throughout The threads on all ferrous metal oonduits

bullsh8l1 be painted with rusT preventing paint before couplings are made up Where themiddot

coating on ferrous metal conduit has been dam~ged In handHng such damaged places

shall be painted with rust prevanting paint before installation

All conduit ends shall be threaded and capped until wiring is started When

caps are removed the threaded ends shall be provided with approved conduit bushings

Conduits shall be laid to a depth of not less than 50 centimeters below

pEIVed footwalks and medians and not less the 75 centimeters below the roadway

surface The location of all conduits at curb lines shall be marked by means of a Y at

laaat 10 centimeters high incised in the face of the curb directly above the conduit

Conduit terminating in iii standards cabine1s or pedestals shaH extend at least 5

C9Iltimeters vertically above the bottom of the box Such conduit shall be sloped towards

the top of the box to facilitate pulling Conduit entering the bottom of the box shall enter

in the direction of the run

16

34 Pull boxes or Junction Boxes

Pull boxes shall be installed as shown on the plans and in any case at not

more than 00 meters intellals The contractormiddotmay install additional pull boxes without

extra charge jf he wishes Pull bo)(es shall be of reinforced concrete not less than 10

centimeters thick and may be of approved pre-cast deSign Reinforced concrete covers

acoured by two recessed brass bolts shaff be used on faatwalks the covers baing

inscribed Street Ughting on the outside Under the roadway covers shall be of steal or

oast iron inscribed as specified middotabove andlaid in II suitable concrete footing to withstand

trecffic loads Metal covers shall be effectivalr earthed to an earthing rod inside the box

Tops of puUboxes ~Ilan beeffectivoaly level with the slrfOunoing paved areas whether

footwslk or roadway but in unpaved areas the tOpl of pull boxes shall be buried 30

oentimeters below groul1d level The bottom of pull boxes shall be bedded in sand and

cement or crushed rock Permanent makers shall be provided and erected

toshow the position of all pull boxes

35 Tasting

A funotional test shari be made on completion of the work n order to

demonStrate thet every part of the equipment and installation fUllctionS as intended and

specJfled This test shall consist of not less ~a~ five nights continuous and satisfaatOlY

operation If any defects or unsatisfactory operation are revealed this condition shalf be

oorrected imd tne test continoued until the required five nights of satisfaotory opera~ion

have been performed

Prior to the functional test tlie contractor shaff carry out thefollowing

tests to the entire satisfaction of the Engineer

1) Each circuit shall be iested for oontinuity

2) Each circuit shall be tested for cething

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3) A m~gger test shall be made between eaoh cirouit and eart) The

Insulation fesistance shall be shown to be at least that specified within the relevant

codes

4) The distribution horizontal illumination valve of specified spacing in eaoh

code item in rale 6flux measured between two iuminair as avery two meters along

longitudinal and transverse road way line are essentially measured to show maxmean

min illuminati and uniformity ratios

Uniformity ratio minimum illumination average illumination

= not less than 126

and maximum illumination

minimum illumination

not more than 61

5) Rainproof Test

The lantern under test shall be mounted in its normal orientation on en

adjustable sUpPOrt as shown in fig 1 so that the fitting is near the center of the arc

desoribed by 1he oscillating tuba

After being switched on for one hour the lantern shllil be subjected to II

spray of water at a temperature not exceeding 200 C and ilt e pressure of approximately

67 Ibsin2 104 kgscm2i the tube being oscillated so as to describe an angle of SO

degrees from the vertical and in both directions from it This treatment shall be continLllld

for 20 nilnutes the fitting being switcher off after 10 minutes

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At tha end of this test there shall be to damage to the lamp or enclosure

and no visible evidence of water having aocumulated it the fitting

04 rnm dlo hDln

Fig Apparatus for rainprooftest

On the completion of testing the contractor shall supply to the engineer

three copies of as buill plans and circuitdiagrams whicn shall clearly indicated any

modifications which have been made to the original design

4 Measurement

41 Unless a Bill of quantities is provided thjs item will not be measured and payment

shall be made one lumpsum basic

42 When a Bill Of Quantities is provided measurements shall made on the items detailed

In the Sill of quantities completed accepted and neesured in place The unit of

measurement for each item shall be the unit of measurement shown in the Bill of

Ouentitias

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5 Payment

51 The lump sum payment for the street lighting installation shall be full compensation

for furnishing ell materials labour equipment tools supervisiorl testing and incidentals

neossary to complete the work inoluding any necessary backfill foundations restoration

of footwalk roadway curbing and appurtenances damaged or destroyed during

construction The payment shall also cover the cost of design where this Is called for

The ILlmp sum paymEmt shall be deemed to include full compensation for

all additional materials and work not shown on Ihe Drawings or specified which are

nesessary to complete the installation

62 The work measured as provided in 42 shall be paid at Ihe contraot unit price for eacl1

item such price and payment constituting flln compensation for aU materials labour

equipment tools and incidentals nseded to complete the work All materials Bnd work

necessaJY for satisfactory completion of the installation which are not specifically

mentioned in the Bilt of quantities shall be deemed to be included in the items shown

corw~ors 6 Information to be supplied by bidtfelS

61 catalogs at electrioal components lanterns ballast etc

62 Plans and circuit diagrams ground rod connection diagram

S3 Photometric data

631 Utilisation Curve

632 Isoc8ndala diagram bull

633 Horizon~81 isofootcandle diagram

634 Polar light distribution curvs

64 Cataisl of columns BraCKets Base Plates concrete foundations

20

7 Other details of steel columms not mentioned above should comply with British

Standard 1840 1960 The decision shall be made by the Department

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135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

bull 1OOOW 1043 Watt

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Page 11: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

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WherB there is a speed limit of less than 60 kilometers per hour the

minimum otearance between columns and the edge of the pavement should be 16

meters but this may be reduoed to

050 meter for crossfaJis of not more than 1 in 40 towards the curb

OSO meter for crossfalls of between 1 in 40 and 1 in 24 towards the

ourb

075 meter for crcssfalls of more than 1 in 24 towards to ourb with the

previous permission of the Engineer

d) Each lantern should normally di rect two beams along the length of

the road rhepolar curves of the lenterns in both horizontal and

vertioal planes snould be smooth and free from any abrupt

variations so that the luminous intensity diminishes smoothly and

progressively from its maximum For centrally mounted lanterns the

beams should ba approximately axial for lanterns mounted at the

sides of tns roadway the maximum toe-in of the beam will be 160

Adequate but not excessiVE Ught should be dirlided towards tha ourbs

and outer edge of the road Wliere area illumination is required using

high mast righting these provisions she not necessarily apply

il) For out-off lanterns the beam should 00 in a direotion about 650 from

the downward vertical The peak Intensity ratio shall be between 20

bull and 40 the intensity ratio in the zone [JO to 3()O below a horizontal

plene through the lantern shali be between 03 and 20 An Intensity

ratio of 12 shall lie between elevations of 72deg imd 7Bofrom the

downwsrd vertical in the vertical plane parallel tomiddotthe lIJ(is of ths

roadway and the horizontal intensity ratio in the same plane shall be

not greater than 015

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f) In the case of semi-out-off lanterns the beam should lie in a direotion

about 750 from the downward vertical The peak intensity ratio shall

be between 18 and 40 The intensity ratio in the 00 to 300 zone

below a horizontal plane thrOJgh the lantern shall be between 03 and

17 An intensity ratio of 12 shall ie between elevations of 780 and

840 from the downward vertical in the vertical plane paralled to the

axis of the roadway and the horizontal intensity ra1io in the same

plana shall be not greater than 06 except that in the case of sodium

lamps the intensity ratio 01 12 shall lie Similarly between BOO and

860 and the horizontal intensity ratio in the same plane shall not

exceed 07

gl The siting of lanterns shall be in accordance with the following table

which gives minimum required illumination Particular care shall be

taken with the siting of lanterns on bends and surnmit vertical ourves

At junctions and roundabouts lantern spacing shall be designed so as

to give at least the minimum illumination required by the following

tables and also lanterns shan be spaced and sited where possible

so as to delineate the cour39 of the roadway plainly to road ussr

approaching from any normal direction without any possible mislending

impressions

The level of illuminetion provided as road junctions and roundabouts bull i

shall be at least as high as that on any of the approach roads and in

the case of roundabouts a minimum Jeve middotof illumination at any curb

Hne of 10 lUmens per square meter shall be provided

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Required minimum Average Horizontal lruminatlon

in lumens per Square Meter (Lumens per Square Footl

Central-Urban Sub-Urban Rural

Areas Areas Areas

High Grade MotorWays 215 (201 150 (14) 1075 (10)

At J~notions 215 (2Q) 215 (20) 150 (14) jgt Main Routes 215 (20) 130 112) 97 (09)

I Seo90dary Routes 130 112) 97 (09) 65 (06)

I Local Roads 97 (09) 65 (06) 21 (Q2bullbullI (Residentiaj

areas only)

The Contractor shalt certify that the design of the installation has been

done in accordanoe with American Standard Practice for Roadway lighting (D 121 shy

1~l pubished by the lIIumnating Engineering Society 345 East 47th Street New York

or in accordance with British Standard Gode of practice CP 1004 of 1963 Street lighting

Published by the British Standards Institution 2 Park Lane London WI except in so tar

8S these have baen varied by the provisions of this speoification or any special provisions

22 Wiring end Switching

The Wiring and switching supplied for control of lanterns (each device bull

controlling B group of lantern) shall be of a type approved by and agreed with thei

Electricity Supply Authority Unless otherwise specified photoelectrio relayswitching shall

be used

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23 Columns and Brackets

ltII Columns shall be of steei construction ai1d shail consist of tapered

round hollow shafts with anchor bases Each column shall be provided with a suitable

cable slot and a weatherproof service door fitted with a tamperproof lock All locks shall

be of the same pattern and six keys shall be provided for them

b) A non-hygroscopic mounting bord cqmposed of electrically insulating

material shall be fitted in an easily acoessibfe position inside the column and ehall be of

c suitable size to take all necessary electrical equipment Adjacent to this mounting bosrd

there shall be prollided on the inside of the column tWo stainless steel studs not less

than 4 centimeters long nor less than 8 millimeters diameter and compi~t8 with stainless

steel look nuts and washers for use as earthing connections

c) Brackets to provide the required Outreach shall be of sufficientlv strollfij ~

bull construction to support the lantern under all normal conditions without significant 1

movement and shall be provided with suitable fittingsto take thelantems When in

positioo bralt~ts shall be inclined upwards at an angla of approximately 1SO to the

horizonaIand shall be fixed to their supports by suitable welding fastenings or wall

C plates

dl Columns and brackets shall be strucrursl steel having the following

mechanical properties

bull Thiokness of sheet steel (min) 4mm

~ Ultimate TeruJlie Strength (min) 41 kgQ1m2 Imiddot

bull Yleld Point (min) 25kgmm2

- Elongation (min) 21

oj Straightness That part of the column above the ground shtll not deviate

from straightness by more than an amount calculatad at II rate of 21 mm per meter of

column length ~

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24 High Mast Lighting

Mounting heights from 20 meters and more shail be High Mast

a) Columns carrying high mast lighting shall be designed to permit the

whole of the lantern carriage to be easily s6fely and quickly lowered to ground level for

maintenance works The columns shail bee designed in accordanoe with British Standard

449 or other internationally aocepted standard for design of structural steelwork in

buildings except that the temporary horizontal defleotion of the top of the column may to

up to 75 of the height above ground In calculating the tending moment at ground

level due to wind load it shall be assumed that the wind speed at B point ten meters

above ground level is 60 kjiometers per hour and the design of the column hall be such

that wind excited oscillations are damped as much as possible Adequate allowance shalf

be Ij1sde for the stresses produced by 6uoh oscllationslt Details shall be given of the

vertical and horizontal load Bnd the bending moment at the foundations

bl The base plate shall ba free from laminations and all dimensions of the

base plate shall be provided including details of the holding down belts A cable entry

hole of not less than 30 cen1imeters diameter shalf be prCNided centrally in each base

middot c plate and the bottom of lile maat shall pass through the base plate and be welded onC

both sides An altsmstiv9 construotion of equal strength may be accepted by the

Engineer but a butt weld on the base plale will not be accepted

Each holding down belt shall be tensioned to the design value and within

the maintenance period the bolts shall be checked and retightened 8S necesllsry after

Whioh the nuts shalf be repainted

oJ The columns shall be deli~ered to the site in the minimum practicable

number of lengths Any joints necessary shall be positioned as near the top of the

Qotumns as possible

11

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d) The lantern carriage shail support the designed number of lanterns

Vithiout significant sway or movement and shall be capable of supporting these lanterns

II cradle with two men for maintenance work The lantern carriage shall be protected

prevent damage to the painted surface of the columns rotation of the carriage during

6IgtIIIJ and lowering shall be prevented and correct location when raised shall be ensured

some positive means It sha be possible to remove the lantem carriage without

illwerirl1l the column

el The lantern carriage shall be raised and lowered by a self sustaining

capable of being operated either by hand or by a portable electrically operated tool

middotIt shall be possible to lock the winch in any position by a simple robust and easily

operated mechanism The worm gear shall have a ratio of at Ieast 201

f) The winch shall have removable handles and it shall be mounted within

the base compartment at a convenient Vcrking height The opening in ths column shall

be of sufficient size to allow proper operation and maintenance of the winch mechanism

A weatherprClOf lab1 shall be fixed in an obvious position wihtn the column base giving

a full list of allmiddot lubricating points on the winch and other mechanism and detail of

recommened lubricants Winches fixed inside the column shall bs provided with a

substantial cover to fully protect them failing dirt and dust

gl A sufficient number of turns of the hoisting cable shall be left on the

winch drum when the carriage is fully lowered to ensure that the cable anchorage on the

drum do~s not take the full load of the carriage at any time

hI the last 30 centimeters of travel to t~e fully raised position of the

carriage shall be by hand operation and for lhis purpose either a limit switch shall be

provided to cut off the power supply to the portable electric tool at the appropriate time

or else some form of indication shall be provided to indicate when the carriage is 30

centimeters from the fully raised position

12

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i The winch cable shall be of stranded stainless steel wires and shall have

sufficient capacity to carry safely the lantern carriage complete with lanterns and a cradle

with two men attached thereto Great oare shall be taken during installation to ensure

that the hoisting cables do not twist or kink and any set twist Of kink shall be sufficient

rflsson for the rejection of that cable

j) All parts of the raising and loWering mechanism which are inaccessible

after erectlon of the oolumns shall be adequately protected against moisture dirt and

corrosion Where neoessary pulleys shall be fitted with shields to prevent the winch

cable becoming displaced Pulleys for electrioal cables shaH be of sufficient dimameter

that the cablll will not be bent to a smaller radius then that permitted by loca relulations

or those of the British Institutiof of Electrical Engineers 14th Edition Where necessary

for continued tfOllbe free operation metal parts shall be of stainless steel or other

approved non-corrodible material

kl When pewsr tool operation is used a suitable power outlet shall be

providad and the operalor shall be adequately safeguarded against any electrical shocks

rhe power tool shall preferably be designed to work on a reduced voltagee end in this

OBse a suitable approved type of translormar shall be provided The power too shall be

designed so that continuOlls operation will cause no harmful effects on either the winch

Of the tool and in the event of power failure the winch shall be self locking Conversion

from power to hand operation and vice versa shall be quick and easy and shall not require

spacial tools Full imOfmallon on tha type of power tool proposed shall be given with the

lender

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25 Protection Against Corrosion

Unless otherwise spceified columns bracket arms and brackets shall be

protected against corrosiOil eithsr by painting or galvanizing as follows

261 Painting

sl Cou~ns and masts shall be treated internalty with hot asphalt under

high pressure so as to givB a complete arid unbroken asphaltic coVering or other approved

anti-corrosion treatment shalt be applied to give at least equally good protection Bas63

shall be similarly treated up to a level of 25 centimeters above ground ievel

b) Before delivery to the site columns masts steelltracKets and external

fitting shall have all external welds ground down ilnd all external surfaces cleaned by shot bull

blasting or other approved method to a whitsmetal finish free of all signs of rust

Immediately folJowil1g t~is treatment the items ahall be painted with two coats of tropical

red lead undercoat followed by two coats of aluminium paint or they shall be treated in a

similar and hot tass affective manner aoceptable to the Enginesr to present subsequent

oorrosion After Grection ali imperfections and damage shall be made good to the

Engineers satisfaction and the items shall be given a final coat of all aluminium paint

262 Galvanizingmiddot

a) Before delivery to the site columns masts steel brackets and extemal

fittings shall have all extemal welds ground down Poles and other ferous materials shall

be galvanized both inside and outside by hot dipped in accordance with ASTM A 625-76

Weight of zinc coating shall not be less han 550 gram per square meter

14

b) Base of columns both inside and outside shali be coated with bituminous paint

up 10 a level o 25 centimeters above the base plate

3 Construction Methods

31 Excavation and Reinstatement

Excavation for cable or conduit laying or for foundations and reinstatement

shall be Darned out in accordance with thaprovisions of Section 25 (Sub-Clause 2632)

of 1hampS6 specifioations Reinstatement shall be suoh that the surface is restored to at

east its original standard

32 Concrete Work

All necessary foundations and footings or other concrete work shall be

carried out in acoordance with Sections 61 (sub-Clause 5112) and 02 of these

specifications Unless otherwise specified on the Drawings or in the Speoial Provisions

ooncrete shall be olass 8 Foundations shail be placed in one operation except that the

top 5 oentimetars may be placed after the superimposed structure is In position The

el(posed portions of foundations shall be formed to present a neat and tidy appearance

and sloped to shed water aV)lay from the structure supported Where existing

obs1ructions prevent the construction 01 foundations as shown on the plans then an

effective alternative may be provided subject to the prior approval of the Engineer

amp Ministry of National Development Department of Highways Specification For Highway

Construction 1970 Bangkok Thailand

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33 Conduits fittings and boxes

Copduits fittings and boxes shall be providsd and installed in accordance

with the provisions of Section 511 of these Speoifications except that chemically stable

tough plastic conduits fittings and boxes aocording to samples previously approved by

the Engineer will be permitted providing thet they do not soften when exposed to high

ambient temperature

The contractor may use alarger size of conduit than that specified at no

extra charge if he wishes but in this case the entire run shall be of the same size No

reducing touplings will be permitted

When metal conduits ara used cuts shall be made square amp11d true and all

couplings shell Ie screwed up until the ends of the conduits are brought together in order

to proVide a good electrical contact throughout The threads on all ferrous metal oonduits

bullsh8l1 be painted with rusT preventing paint before couplings are made up Where themiddot

coating on ferrous metal conduit has been dam~ged In handHng such damaged places

shall be painted with rust prevanting paint before installation

All conduit ends shall be threaded and capped until wiring is started When

caps are removed the threaded ends shall be provided with approved conduit bushings

Conduits shall be laid to a depth of not less than 50 centimeters below

pEIVed footwalks and medians and not less the 75 centimeters below the roadway

surface The location of all conduits at curb lines shall be marked by means of a Y at

laaat 10 centimeters high incised in the face of the curb directly above the conduit

Conduit terminating in iii standards cabine1s or pedestals shaH extend at least 5

C9Iltimeters vertically above the bottom of the box Such conduit shall be sloped towards

the top of the box to facilitate pulling Conduit entering the bottom of the box shall enter

in the direction of the run

16

34 Pull boxes or Junction Boxes

Pull boxes shall be installed as shown on the plans and in any case at not

more than 00 meters intellals The contractormiddotmay install additional pull boxes without

extra charge jf he wishes Pull bo)(es shall be of reinforced concrete not less than 10

centimeters thick and may be of approved pre-cast deSign Reinforced concrete covers

acoured by two recessed brass bolts shaff be used on faatwalks the covers baing

inscribed Street Ughting on the outside Under the roadway covers shall be of steal or

oast iron inscribed as specified middotabove andlaid in II suitable concrete footing to withstand

trecffic loads Metal covers shall be effectivalr earthed to an earthing rod inside the box

Tops of puUboxes ~Ilan beeffectivoaly level with the slrfOunoing paved areas whether

footwslk or roadway but in unpaved areas the tOpl of pull boxes shall be buried 30

oentimeters below groul1d level The bottom of pull boxes shall be bedded in sand and

cement or crushed rock Permanent makers shall be provided and erected

toshow the position of all pull boxes

35 Tasting

A funotional test shari be made on completion of the work n order to

demonStrate thet every part of the equipment and installation fUllctionS as intended and

specJfled This test shall consist of not less ~a~ five nights continuous and satisfaatOlY

operation If any defects or unsatisfactory operation are revealed this condition shalf be

oorrected imd tne test continoued until the required five nights of satisfaotory opera~ion

have been performed

Prior to the functional test tlie contractor shaff carry out thefollowing

tests to the entire satisfaction of the Engineer

1) Each circuit shall be iested for oontinuity

2) Each circuit shall be tested for cething

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1

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3) A m~gger test shall be made between eaoh cirouit and eart) The

Insulation fesistance shall be shown to be at least that specified within the relevant

codes

4) The distribution horizontal illumination valve of specified spacing in eaoh

code item in rale 6flux measured between two iuminair as avery two meters along

longitudinal and transverse road way line are essentially measured to show maxmean

min illuminati and uniformity ratios

Uniformity ratio minimum illumination average illumination

= not less than 126

and maximum illumination

minimum illumination

not more than 61

5) Rainproof Test

The lantern under test shall be mounted in its normal orientation on en

adjustable sUpPOrt as shown in fig 1 so that the fitting is near the center of the arc

desoribed by 1he oscillating tuba

After being switched on for one hour the lantern shllil be subjected to II

spray of water at a temperature not exceeding 200 C and ilt e pressure of approximately

67 Ibsin2 104 kgscm2i the tube being oscillated so as to describe an angle of SO

degrees from the vertical and in both directions from it This treatment shall be continLllld

for 20 nilnutes the fitting being switcher off after 10 minutes

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At tha end of this test there shall be to damage to the lamp or enclosure

and no visible evidence of water having aocumulated it the fitting

04 rnm dlo hDln

Fig Apparatus for rainprooftest

On the completion of testing the contractor shall supply to the engineer

three copies of as buill plans and circuitdiagrams whicn shall clearly indicated any

modifications which have been made to the original design

4 Measurement

41 Unless a Bill of quantities is provided thjs item will not be measured and payment

shall be made one lumpsum basic

42 When a Bill Of Quantities is provided measurements shall made on the items detailed

In the Sill of quantities completed accepted and neesured in place The unit of

measurement for each item shall be the unit of measurement shown in the Bill of

Ouentitias

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bull

5 Payment

51 The lump sum payment for the street lighting installation shall be full compensation

for furnishing ell materials labour equipment tools supervisiorl testing and incidentals

neossary to complete the work inoluding any necessary backfill foundations restoration

of footwalk roadway curbing and appurtenances damaged or destroyed during

construction The payment shall also cover the cost of design where this Is called for

The ILlmp sum paymEmt shall be deemed to include full compensation for

all additional materials and work not shown on Ihe Drawings or specified which are

nesessary to complete the installation

62 The work measured as provided in 42 shall be paid at Ihe contraot unit price for eacl1

item such price and payment constituting flln compensation for aU materials labour

equipment tools and incidentals nseded to complete the work All materials Bnd work

necessaJY for satisfactory completion of the installation which are not specifically

mentioned in the Bilt of quantities shall be deemed to be included in the items shown

corw~ors 6 Information to be supplied by bidtfelS

61 catalogs at electrioal components lanterns ballast etc

62 Plans and circuit diagrams ground rod connection diagram

S3 Photometric data

631 Utilisation Curve

632 Isoc8ndala diagram bull

633 Horizon~81 isofootcandle diagram

634 Polar light distribution curvs

64 Cataisl of columns BraCKets Base Plates concrete foundations

20

7 Other details of steel columms not mentioned above should comply with British

Standard 1840 1960 The decision shall be made by the Department

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l1fllltllilluflilslntlll1l4hlPi1l1fJlifl~Ui9l1li-tHl1t14f1~ L~1 iitl-lUltamphJVI~ ~ ~ ~tl ~ Vl1~I~fJlnUfll-l~~I1ntlltlWUi1ltl T3I1U 170middot200 wIl5 M~i~lI

SAFTY SWITCH lIUI1lniln1EiUpoundlnfl1Jii1UW MAIN INCOMING SWITCH

mil ~A ~ v ~J12 Iflltlll FUSE lU(Itll1lt11Uftl (TIME DElAYl lll~ffl1)1~13l11CUn1tfli1lll1

(INTERRUPTING CAPACITYll(11)1J6tJnh 10000 AMPERES SYMMETRICAL

UHz~tH~ AMPERE RATING lI1FI FUSE ~HYjnnnrrWLiitllIU11l AMPEREi

C LFI~~itl t l I iJ X ~I 113 Vl1nOlflVl~LnIJm1 1 OWITlJn 1 l-ll~Il~~Hillilfl-l l~rlJjHhtlfll JIl~1J1J

SAFTY SWITCH ~ FUSE ilEh~ct~ftil-lt~ LilUPllIj3i L~~lgtlpoundllltl1Pl AMPERE RATING ~tlj FUSE 11~J1~Jn1J LOAD lJ~WNlt9tltnlI1

rh~tJllN ~R1llliltlnUlyenl~l fJM nf1J 1ll7jIl~gt2olIli1~1nl1mfl1~iifi shy

1IIh1~til111unm1~nu~~Lfl1fltl1~tlUUlYhLill DISTRiBUTION BOARD klf- - shy

~fl~~~4tJP1l1lJ -u~~tl~~~~~~~ditl~fi~~~~~~Vi-~ci4~m1 ntl1~IINtJUU L~fJiJ~1~~Ii~1~tl~1L~~lnUn~~

shy shy

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22

14 n1~1Jal11il1nlIl~l~WIll~~Pl1tl~-rV ~~ MAl N INCOMING SWITCH Uflt

1Iiiltl~J SAFTY SWITCH Ji~flFU$E 1lil-ll~ lniflfludlaltftl1 ~lIn(llll1l-ln)f

tvh~iuIAflljUUtJ C 1oIi1lllU1l UNDERGROUND CABLE NY( 1~lIil~ ~W

tilfJNfl)Jllii~vhLVtJ~nuwhj1 till uil 1I1111ll ~W~1oIuwiillYiUIvtfJ ~lru mmiddotuiWrht~whllU1lil AMPERE lI1ljI1-k~-rV tilMffllW~1nh 4 [1111-1

ij~fl3l1ll1 laquo~~ ttlUntl1l11~9I111-t1lW11ilti11i~1~1iH~UWiilmfJfl1Jtwh ()l1 4 iIflmiddotm11~Jgj1poundJn11lyj-Ml1M1oIell1 ~~jll1rltl LLflrlJdlflflllUvIl

ftltJft11111l1U(IlLflM1l1lJKIna (RIGID STEEL CONDUm ~flilfl~n1J01 n ~IltJn1LtllOLLftliltJ1fllhJ11(1)1 tTtJiI1Y1ltJ~1n m fl1l~ uft~l4Pia

ilfl19ri1lt~fUliltll1~~)e11U~I1~J~ln~l1li1iIl-l CLEVIS ~fll SECONDARY RACK 1l1JlltU 30 - 60 n~Wll1 tillJ~lfie-tmf1illlll1Eltlla

1~1l2Jl~ 150 WIIll Uflfl~~t1I11t1ilf1nfJ~ltf SERVICE ENTRANCE CAP -~- ______-- _-_ -- ~ - _ ~tl3Jflhl

15 f1l1L~U~1al1n SWITCH BOARD bJul LOAD 11ni11~~hJi~l~1ffl1tJ

lilfl~f~lWtl 14 rllU~fllVl1Jlt1WtJl~il~~fl ~1WviilreflftlfJrI-M1lOil

tfltlllJ~m~~~lJlUu 14 ~e llllt1l~ltJIlu~f)muJ1fl3Jnu (fll3J11a~~tIla~~n~l~~I~fl~~~t1lln)ri~W~ll~1~~u~UJ3JiI1~1~ fflJYifnlluWIlnW ~1tllf~WiiiutJ1l1jhiSnl1n~l~u~lJllillln~1 60

LoDWjUJ tL1llilsLAB llatJn1m14~fl~nut~ml1ltiI1~UII1ltDi f1 Jlflfilll lI1Il1l

Jl1ljfl1fJIt 1Iil~ II1~3Jn1J LOAD 1ll1l011114DW1Il1i11 f1~1ii 1I~fl 14

16 m~tJfl1t1111t1tlL~l1ftJhJ t1~91Ht~IJJitH1itl1fJlIibr STREET LIGHTbull

WIRE (TYPE RHI ~1tltfl1UililVl~~1ll~middothltiifJ 141il1f ~-1n1W 2 mru IKfln

Il1J1 fI~~Illftl lI1l-l illhMrilIlil-l ILIl14hi~ ~ n+1 2 11I111-1tiflibll LIl1

17 lfIl4ill3J1lIiriilI)~JIl~il CARTfliDGE FUSE lltl4rluintfiPil~I1~t1

l

23

1S mJilILtJnIll~~lolJl(aJuVl11lINmliJ tJl1 l1~L~um1r4fllUliil UVlU~~eriI~ lli~u~u dtl~n mtlutiltiiJU~ziht~Jr~1l1 ril ln11I11fl ((Jnf11IIJl fIu~~1 ttlVll til ~Wflittill1-laquoriIIVltfltitl m~tYI (11)lilU1lJ1lEJBinIl1lri-mUf011fJ Lt~i

lmfliflILlJn(q1flffltl WIRE JOINT l11fluJ1tl~tJltlf1t1i1ilvnIl1tllhJuuuliw ill~~ilflnfl LltllfuiftJliltlig~~Lt1u~1n1rolufl1Y1flJ~~t1t1 (INSULATING SEALING COMPOUND) tll~U1lJ~lJ TAPE lilll~mftJrrU

111Jv4jh~mflI1Vjn 1mh

19 1mtll-4JrhltJlJ O1JlPiflfl1 poundIfl~~JWl fJiI1iJ~CPifl fl1 E1YIl iiiuLlhntJ LtlftllOltl mtth

fltln1nnwh~~1~llltil~~nllQtl (111 lil1nJfi1fl1v1 ~lll~~~~UAU ~ nelll~tll ~n~iiiil~u~-3111Yl[ ei1 LLfI~ltJtfl1l 1 fl 1 ~4il11Jft~l~tJpoundIlPi1ltlld 191 rl~1U~Ullifl411hfl1JVlMIIPl~il~J~1ihrIi111~1nh 16 ITI UU

192 GROUND ROD Iifl~tJuJil~IlllLL~-31ill1fllLLtl-ljlJih (COPPER bull w

CLAD) i~lrIiWlilU1J~)~Jdnfll~jUlfJn15S ih UOJ1lWUtm

n~16 t1 rell1lhUII~1~lflIL~~t~ntlllJK~na (HOT-DIP

GALVANIZED STEEL) ril~ LLI1i1litHilLlAUeh~lilmn1t3Jufllni1 51B

ih fjJ1lWUIlJn11 B ~1i1

193 n1111itlmmL~fllJiI1mNiiiuolJ GROUND ROD ffl~il1Ji71

GROUND ROD CLAMP 1111~Ilt1mru~1flnm1 tj~il1JPiutlflm~lN1 J 1t~ ~ 4~t ~

194 n111J1 ~IJ11t1JMill1111 ~I~lEH ~~~Pl fl JJ Ilfl~11111 III IIJ~1lYI 1ZflIhllJ~

~il~tlfl1t1t1til6-l GROUND ROD lINl11iiiJfln1mrUil~J SO bull J

bull ~~UtitlJI1 IYlllt~tlfll1~rJIl~lifltJ1nnlQntlnn~

196 mIIit)M~Ul1nH1t1J1Jt1rJ9iU1lIJOU iIltJ~UhJJI~tl~ ~If1~~WhJ

UtlEln+1 2 ~c)

110 lfflllllllnUtl1JLurfIHi11~il VOLTAGE DROP 1~1~ MAIN INCOMING

SWITCH BOARD nlJ-iJllM 1LUN41thhriu 2u1flLiIIl~rltlnlN

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I 1 ~I~111 nnlYl1~~fll~l~)1lf)~~fj1Jtt1JULtfi~~tlt llULlnml llmLifl m111

iIlSgth ~~lgt)J q] till poundI ~ iLlJ1Jl(~11 Ufl L~ J VI Iiil (1)gtl flfilruCItU LmI1hgtl 1

11101UftlIU1Vllll-lLft 1Vll4 LfllJ ~ 1 flhNh vh6 1J11 gt11 mH~1I iIYl~llEt

~11t11 flil Vl~tln11LLlj-lrJ~l111t1ft L ~Elf Il1l~lAJJ1~Yh LLl 1jUMnf LII~

SINGLE LINE DIAGRAM 1~m111Yl1Ufl11-1ftl11i11rJltt1tmW1l14ritJdln11 ~

lIill~n171yHh W1l T~Ill ~111 Sllii1ltJ n1J~11lvi4QUmrutLa m1llJn1til1Yiw 1

112 mtlHh~1l1VlflH l~~1~OUn11t111lln11~Vl~~~Unlnrlf11tJ1vjfh~mJ Vl1I-IftlgtlJh Lihm11liHrillWtJlln LLIl1vI~1 n~1~491n01111I-M 1UII~ ~ fl l-l ~rll L~ufhlii III ~Hi~11 ~1iI1 ri 1111 Tlllll1llJ1 ir1l fl1H roh u~U 1 tlgj

ViNtflJ~lflthgtl H1llf1iiJl~~fl~ii 8AlLASn JIill1lll 1 Vll-l 1n

nT)J vn~j~fJgtlUlaquofJlvi1 L jjU nlfYI Iilil Ill vi~d 1121 11 VI iiil1J-liPIphrh laquo~tl4~~h POWER FACTOR flfJllJ t1i1tlVllUJIIllflUlll

bull

~)J i11EltU~lltflll 11111 Lt~~ IIN IiflPl 1n1In1itit~ fn1Yl laquon~ru

na~tI-1nU4llrJLlUlJ~ltlL1hJ1l1ltJ1WlllgtlLtiI)J LUlfim~ru nli ~

ni~ EJlhIiq bfllIfLJJtI~gtl

i1 i1lllbf)~ l iJ gtJ r11111 i1liIM1rJlIRtJ L~e-rli1

nlilliljllllJlnuflnVllltNihfl~lvjYlV11wm11~mjtJ POWER bull

FACTOR hi~m~1 09 LAG Will i1l1~J1hjjll1li1l~1ljjlU~lJfllflll

fIHlbrmW~1 nrl1 05 MEGoHM

112 2 Vli1lfliJll1i11llllJlhW1l1ul1J~fIlJlll1ill~J~lt 1Mr)~~11JLl 2l1lt1

tlHhlLlIlfiZ i~UnlJ~l ~MiJlh~1n~l 05 MEG OHM

U23 I1Q1f1il1l1ll GROUND RESTSTANCE lI1l~nl~Ill1lfllPU Llviil~Iltli1li

iiIl10~1U11jLii 25 OHM

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2 tThftEl~ft141iiflltlUUflW1U yenl~1P1n~1llihLfl-lfl~1~lI1ti11ru~PiIl~J1j (hrutifNI~11jUUflniu1ti Jum liell11Y11lJIlWLPiUL~)YJnlll~ il4fll itutll~-3d

21 MAIN INCOMING SWITCH BOARD xlllulbJ~)lJ1lf1f1L1iWI~1llJnU 11 ~ J ~ lV I~ bull J ~ lJt 11 1-11flvnnl~~~YlIWlflVIlUIi m1lj lU~1LLU~I1I1j1lm IUnl1I1lfll

IttJLlntlI1ht-11nlfi

22 I1ftl-1H FUSE ~1lJ11VilafifJll~i~1u1l t2middot

ll ~tl J ~l 11oj23 lt10flllllUl-1lnUn11 1 NlT JHuU ~1lJ11JIllflEl(i)Yl1Z1lIHUlIil 13

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24 mni1lUtl1t111n0IillI1lDlUJlLllffWJIil1 tH MAIN INCOMING SWITCH llfl

ilitlttJal SAFTY SWITCH 1tl FUSE lItl4HI1VflJ 1mUUfi1f1i~iliu ~flJ

Lutn1tnutl7-lllhnlVl1u i~dju1tlvn lJ t1tlitfl poundIf1~ltlJ1ntllftl 4

WliVl1 ndluIl1a~~ultllUll n111ll NrnIlU1ln il 1Ii1UI~tN1JtlJIilllJtll

~ bullbull I ~ t J Ii I inll1nll1Ull~fl) UUU A MnJllUUl TW VlUI1~lJ1[1I11IWajllflllllJnlbil

lrlh1Ifth~U~1l AMPERE jJfl~ilifl4rill1 ~-l~ ~lJ~1iIUIlii1l~fl~WUllf)n-i1 ~ ~ t - Il1 I - ~ Jv 4 fIl1l-l~ flflUJIll1 ulI~I~lil-lLIIIlJfl1 fJ lJ Lm I1Utl1YllfI1l1llllB-4l~ 1 lI~I t

Iifl~lillJL~1jJWlV112 ~W1I110 ~Jil185 UJIlI1 1-11El 6 LJJfl1~li1rl ~U~Pl~l~

I CLEVIS tlUhlllkl-ll1~1n~1 SECONDARY RACK jJ1l4m1~YlrhlIm~N

30middot 60 loitlelUJlIl1 llilpoundlltiltffregmiddotwiltluf11t1fl1atoyenU1tJ1N 160 UJ911 rilLInll

I~Utl1t1~ll~l ~1l1atUlVlTWI ~tNt-nfllllllil1l iIil-l n 1~Hh LI1I1V1ftNltUtJ

l) - ~ ~_UI yC M1flllUlltlU~1jJNiUJUPllvnllujJnu L(1jU IUVlfl1fl2Jtl1 tI nnf1lt1l111 fl1iI1)1U I

fl~n~ IRIGID STEEL CONDUIT) tlI1U~1l1i1U1l~ll1fJItlnilWllJPI~YII

rMfuA1t1~tIlJil1ml1~l~fl)IJJ(lti ENtRANCE CAP

26 mfL~lJl1tll1n SWITCH BOARD tueT-l LOAD I~eiluhJIJ11jJrlfj ~ 11 Ji I ~ l

rZlalflll bUlIil 15 Yl4U MlJrImiddota1lEJIlUIUlJUfJltliIlU~IlEJ

2~ mnitl1un1fJ1Ulfl1~ultJu41ilHLfl~~~lil~mftlgtlLLI1~IOll1tlm)J1tJ fltL~~fIlUfa 16

26

27 M~~raquo~jt1l~minmltllllliiP1llliJifl~3j CARTRIDG E FUSE Llh~middothllnlJ 8 17 ehutfl~~~ll111 rnlllJ 1~1~~FllIiWItifltlUPIJ1~Jfl2ltJ1U1n Wlnu 10 ~bull~ ~1 1 I~~ tvlJil CARTRIDGE FUSE l-t1e CIRCUIT BREAKER

111)1) ~ lJl-lluvi1Utl-l~~Ejnu 28 n111ia LltlmlJtJ~tHi1IJJlJ ~fBN111flJt~tlnw1liUlt f) rlU~ 18 AlU

lU1lt~tl~lHUfl ~J I-l1~~Ln1tJrll-ltfrNf~Wlll~Yi1U Ilill~lIitltUOfllN ~ ~

tflfl1lJlf~nfl (CONNECTION BOX) lIill1lilllnWu1L~h~lilthuu LI1l2ltrt bull J 4 11 ~ 1 I_

fltllUl n~11l11 111 WIRE JOINT SIllfjJfl~VIl ~1lllUPljJU l-t7poundluUUuUmI

L1tHililn~ LLft)UliUliltliI~~tih~1 ~tlrnfJU~1lfuli~H11 tI

(INSULATING SEALING COMPOUND) ILfl~Uyjlllill TAPE IIiWtlhl1nnfu

fIltllri~1ttMIIl1lln 1 Ull~ ~ft)+tJrl tlil11ilyjlhDll~ntilllnlJt~flh~ llfl~Il)nUlvrfJI~lJVPl~laRIGID CLAMP llll RIGID CLAMP BACK middotflfI

vlllnuillNfiTl-Ul ll1ulllUYjntRl- (EXANSION Bom dll-lfUfltYllIJ

fl~m11il1~tor BOLT AND NUT yfiJ)IltW)1Jnjflfll2lhfufI~I1IJ~n

tg)tJM~ua tIllwfflz4J1liha)h~ flUWlnunltj1 50 L4u~ rtI Pl1

29 lIlllM91lht~lJlJmtriflfllJIN~umiddothllilu1t1~1lJ11~flLliltJ~r1l171uffj 19191192193 194l11 196

210 VOLTAGE DROP ~11u1tlIll1lJ1lJilI~ltIl~1~lnuftl 110

211 011JI1ln1ll~I~1ill4Jil1Juuulw~rl1UtllflUMlflLI11P1lllilf111l11uoffEJ

111 t~nulvHh1JPrnfll~lrt1tnillJnlfMllltllJ~)l

112 n1r lYlihlll nllll~I phlilUn11jllj~J~ftflUIlI1ll11tJfilfIilflvltL1rhfie

11211211122 Ul 1123

3 rilll1Y1wmJM~1lllnJl11lJ Uft1I1IildhfJ I-1SJltJOIt 1ruUlrl-MlUtil

fij1~Pl~~~1~1Hill~llJ 1~I1Jmjm1Jfjm1 ~11MIiltJ1Iltufli11t 1 6l1ll11 l~1llJ IIHUtml-t1ilL~flllUft1JlJ1nll~~~euroWl11Eltl1lnmN~middotu(~1Jhit1wliflfl~Oljuln-n1 l1iH

tt~l~fi1MfteINihfJUflmlaquoutl1-lvh-l 1 iJ~lLLUh~d

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31 MAIN INCOMNG SWiTCH BOARD li-YLUWttJ~ll1r1JIlIL~Eli1l~1lJ1U~~ 11 r-

~

) 32 n1Tloft fUSE ~dj1amphJIn1wmJlL~ICl~rlJ1llolrl 12 i

1 ~ i- ~ 0J

) 33 1A1fllJli1lI1l)lnUm1 1 ~I mthHtl~nm1tlilltlfJt1lmlJlnuiitl 13 ~ J_

34 n11LMU~lallnj1)Ill(Il1lPllLIl1lJVl1 01 MAININCOMING SWITCH ttlZ

IiitlhJ~~ SAFTY SWITCH 11l FUSE ll1l~NI1rlfla~1i~lJ 1 Vjn111l x~ilUhj lJI

P113-11UlflLJ tl6iYl1tJ tUlJ1l 24

36 n11i~USlfl9ln MAiN INCOMiNG SWITCH BOARD 1tltT~ LOAD 1A1nerlilf

~UllaquoliluhJumn1pound1Ii1aj1)~-llmW1ill 15bull

36 n11L~Uf11JlmJhlt~1tll~~~ LUWtflgt11~lil1J1tl111w11a111ilrt~ 1~tMlu ~il 16

)-llriillllllfl+JLlrm PHASE JJMn1In91LtllflJ~11i1iili CARTRIDGE

FUSE ilfl~nU n1ffil~~JU

nmll~1auemrlll lLl-Iull1flNl1tilla11Xt1J-u 111 1 -I 11tml1i1a~~lJHhdftl

18 v -I ~_I oj J ~I

lltJ 1llVlYl1ftlltn11f1tl N VlUlutHujFJ1-J nUfttLIJ EJj1)Y1 11j bhUlJfl 19 191

192 193 194 LIS 195

310 VOLTAGE DROP dJ1j1um~11tJlILfl[Ji11~j1jlul1l 110

311 nilJm~Vlfll-l~tir1l ~)jtltJllUU1W~IJ 1Jlnm1 ~~11l1ilmriruullYlriEl

hl t~Ji1ntll1l~tJtlrn~~rliltdfil 111 ~n11hl~1JllmflJHtlnntlu mi3I)9DUffl1lEJ

312 rntIYl1UflnlilW~tlhiilWn1lIij1ll~fl1l1il1)J rJfJlliiiaVl~jtjnUfil 112

11211122 LUI 1123

28

IlU1Jl~lilol~iVl n1mfl~Il~1Il~1lfuf1fJ~IJL~Ulu nlLfiQ~qflri~IIIfufl1~Liu1u

lln1I1U~Uln~1fl11 (Free air) vi~i1lmJUi)1m7

LlfI~Utlf~ttUJuufII~ 05 3-

10 10 6bull 16 813 I

1225 18 bull 4 27 16

6 36 22

10 60 30

bullbull 16 6076 i

ij25 96 64 d

36 119 79 ~ ~ 16060 102 ~ Iii

70 188 121 l

~ i 96 231 160 i

I 170 ~268120

dbull

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29

bull Na 86W 108 Watt

135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

bull 1OOOW 1043 Watt

9 fIl 1W-7tJNIIIJfiltJltilltllli~ 1iifl~1tnlfHtltll fI

I ~ Ili~n1 tn1l flh~uA)llf-lfllJlru~ImiiIiiIillll 1l-lI~ fJI-I1tJ 1iflYl1ll1Jln1r ~f1J

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Ol mnJrri1A nlUnnJ+ItfleHllvlrh Ll~~ellIJamplPl~~~ ow ) Lg1lIJ I)ru111Vlfl~ ~MM~ ~-lUitJUJfnJUll~l~L1t1U~fJiIIU~M11t~))l1t11t1Ll11 24 tlbJ~UUiollLLP)L)fl1~JuU(

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Page 12: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

i bull

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bull

7

f) In the case of semi-out-off lanterns the beam should lie in a direotion

about 750 from the downward vertical The peak intensity ratio shall

be between 18 and 40 The intensity ratio in the 00 to 300 zone

below a horizontal plane thrOJgh the lantern shall be between 03 and

17 An intensity ratio of 12 shall ie between elevations of 780 and

840 from the downward vertical in the vertical plane paralled to the

axis of the roadway and the horizontal intensity ra1io in the same

plana shall be not greater than 06 except that in the case of sodium

lamps the intensity ratio 01 12 shall lie Similarly between BOO and

860 and the horizontal intensity ratio in the same plane shall not

exceed 07

gl The siting of lanterns shall be in accordance with the following table

which gives minimum required illumination Particular care shall be

taken with the siting of lanterns on bends and surnmit vertical ourves

At junctions and roundabouts lantern spacing shall be designed so as

to give at least the minimum illumination required by the following

tables and also lanterns shan be spaced and sited where possible

so as to delineate the cour39 of the roadway plainly to road ussr

approaching from any normal direction without any possible mislending

impressions

The level of illuminetion provided as road junctions and roundabouts bull i

shall be at least as high as that on any of the approach roads and in

the case of roundabouts a minimum Jeve middotof illumination at any curb

Hne of 10 lUmens per square meter shall be provided

C

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B

Required minimum Average Horizontal lruminatlon

in lumens per Square Meter (Lumens per Square Footl

Central-Urban Sub-Urban Rural

Areas Areas Areas

High Grade MotorWays 215 (201 150 (14) 1075 (10)

At J~notions 215 (2Q) 215 (20) 150 (14) jgt Main Routes 215 (20) 130 112) 97 (09)

I Seo90dary Routes 130 112) 97 (09) 65 (06)

I Local Roads 97 (09) 65 (06) 21 (Q2bullbullI (Residentiaj

areas only)

The Contractor shalt certify that the design of the installation has been

done in accordanoe with American Standard Practice for Roadway lighting (D 121 shy

1~l pubished by the lIIumnating Engineering Society 345 East 47th Street New York

or in accordance with British Standard Gode of practice CP 1004 of 1963 Street lighting

Published by the British Standards Institution 2 Park Lane London WI except in so tar

8S these have baen varied by the provisions of this speoification or any special provisions

22 Wiring end Switching

The Wiring and switching supplied for control of lanterns (each device bull

controlling B group of lantern) shall be of a type approved by and agreed with thei

Electricity Supply Authority Unless otherwise specified photoelectrio relayswitching shall

be used

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9

23 Columns and Brackets

ltII Columns shall be of steei construction ai1d shail consist of tapered

round hollow shafts with anchor bases Each column shall be provided with a suitable

cable slot and a weatherproof service door fitted with a tamperproof lock All locks shall

be of the same pattern and six keys shall be provided for them

b) A non-hygroscopic mounting bord cqmposed of electrically insulating

material shall be fitted in an easily acoessibfe position inside the column and ehall be of

c suitable size to take all necessary electrical equipment Adjacent to this mounting bosrd

there shall be prollided on the inside of the column tWo stainless steel studs not less

than 4 centimeters long nor less than 8 millimeters diameter and compi~t8 with stainless

steel look nuts and washers for use as earthing connections

c) Brackets to provide the required Outreach shall be of sufficientlv strollfij ~

bull construction to support the lantern under all normal conditions without significant 1

movement and shall be provided with suitable fittingsto take thelantems When in

positioo bralt~ts shall be inclined upwards at an angla of approximately 1SO to the

horizonaIand shall be fixed to their supports by suitable welding fastenings or wall

C plates

dl Columns and brackets shall be strucrursl steel having the following

mechanical properties

bull Thiokness of sheet steel (min) 4mm

~ Ultimate TeruJlie Strength (min) 41 kgQ1m2 Imiddot

bull Yleld Point (min) 25kgmm2

- Elongation (min) 21

oj Straightness That part of the column above the ground shtll not deviate

from straightness by more than an amount calculatad at II rate of 21 mm per meter of

column length ~

lmiddotmiddotmiddoti~- I shy

~

bull 10

24 High Mast Lighting

Mounting heights from 20 meters and more shail be High Mast

a) Columns carrying high mast lighting shall be designed to permit the

whole of the lantern carriage to be easily s6fely and quickly lowered to ground level for

maintenance works The columns shail bee designed in accordanoe with British Standard

449 or other internationally aocepted standard for design of structural steelwork in

buildings except that the temporary horizontal defleotion of the top of the column may to

up to 75 of the height above ground In calculating the tending moment at ground

level due to wind load it shall be assumed that the wind speed at B point ten meters

above ground level is 60 kjiometers per hour and the design of the column hall be such

that wind excited oscillations are damped as much as possible Adequate allowance shalf

be Ij1sde for the stresses produced by 6uoh oscllationslt Details shall be given of the

vertical and horizontal load Bnd the bending moment at the foundations

bl The base plate shall ba free from laminations and all dimensions of the

base plate shall be provided including details of the holding down belts A cable entry

hole of not less than 30 cen1imeters diameter shalf be prCNided centrally in each base

middot c plate and the bottom of lile maat shall pass through the base plate and be welded onC

both sides An altsmstiv9 construotion of equal strength may be accepted by the

Engineer but a butt weld on the base plale will not be accepted

Each holding down belt shall be tensioned to the design value and within

the maintenance period the bolts shall be checked and retightened 8S necesllsry after

Whioh the nuts shalf be repainted

oJ The columns shall be deli~ered to the site in the minimum practicable

number of lengths Any joints necessary shall be positioned as near the top of the

Qotumns as possible

11

(

d) The lantern carriage shail support the designed number of lanterns

Vithiout significant sway or movement and shall be capable of supporting these lanterns

II cradle with two men for maintenance work The lantern carriage shall be protected

prevent damage to the painted surface of the columns rotation of the carriage during

6IgtIIIJ and lowering shall be prevented and correct location when raised shall be ensured

some positive means It sha be possible to remove the lantem carriage without

illwerirl1l the column

el The lantern carriage shall be raised and lowered by a self sustaining

capable of being operated either by hand or by a portable electrically operated tool

middotIt shall be possible to lock the winch in any position by a simple robust and easily

operated mechanism The worm gear shall have a ratio of at Ieast 201

f) The winch shall have removable handles and it shall be mounted within

the base compartment at a convenient Vcrking height The opening in ths column shall

be of sufficient size to allow proper operation and maintenance of the winch mechanism

A weatherprClOf lab1 shall be fixed in an obvious position wihtn the column base giving

a full list of allmiddot lubricating points on the winch and other mechanism and detail of

recommened lubricants Winches fixed inside the column shall bs provided with a

substantial cover to fully protect them failing dirt and dust

gl A sufficient number of turns of the hoisting cable shall be left on the

winch drum when the carriage is fully lowered to ensure that the cable anchorage on the

drum do~s not take the full load of the carriage at any time

hI the last 30 centimeters of travel to t~e fully raised position of the

carriage shall be by hand operation and for lhis purpose either a limit switch shall be

provided to cut off the power supply to the portable electric tool at the appropriate time

or else some form of indication shall be provided to indicate when the carriage is 30

centimeters from the fully raised position

12

c

c

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i The winch cable shall be of stranded stainless steel wires and shall have

sufficient capacity to carry safely the lantern carriage complete with lanterns and a cradle

with two men attached thereto Great oare shall be taken during installation to ensure

that the hoisting cables do not twist or kink and any set twist Of kink shall be sufficient

rflsson for the rejection of that cable

j) All parts of the raising and loWering mechanism which are inaccessible

after erectlon of the oolumns shall be adequately protected against moisture dirt and

corrosion Where neoessary pulleys shall be fitted with shields to prevent the winch

cable becoming displaced Pulleys for electrioal cables shaH be of sufficient dimameter

that the cablll will not be bent to a smaller radius then that permitted by loca relulations

or those of the British Institutiof of Electrical Engineers 14th Edition Where necessary

for continued tfOllbe free operation metal parts shall be of stainless steel or other

approved non-corrodible material

kl When pewsr tool operation is used a suitable power outlet shall be

providad and the operalor shall be adequately safeguarded against any electrical shocks

rhe power tool shall preferably be designed to work on a reduced voltagee end in this

OBse a suitable approved type of translormar shall be provided The power too shall be

designed so that continuOlls operation will cause no harmful effects on either the winch

Of the tool and in the event of power failure the winch shall be self locking Conversion

from power to hand operation and vice versa shall be quick and easy and shall not require

spacial tools Full imOfmallon on tha type of power tool proposed shall be given with the

lender

c I J J middot1 I

j

c

13

bull

25 Protection Against Corrosion

Unless otherwise spceified columns bracket arms and brackets shall be

protected against corrosiOil eithsr by painting or galvanizing as follows

261 Painting

sl Cou~ns and masts shall be treated internalty with hot asphalt under

high pressure so as to givB a complete arid unbroken asphaltic coVering or other approved

anti-corrosion treatment shalt be applied to give at least equally good protection Bas63

shall be similarly treated up to a level of 25 centimeters above ground ievel

b) Before delivery to the site columns masts steelltracKets and external

fitting shall have all external welds ground down ilnd all external surfaces cleaned by shot bull

blasting or other approved method to a whitsmetal finish free of all signs of rust

Immediately folJowil1g t~is treatment the items ahall be painted with two coats of tropical

red lead undercoat followed by two coats of aluminium paint or they shall be treated in a

similar and hot tass affective manner aoceptable to the Enginesr to present subsequent

oorrosion After Grection ali imperfections and damage shall be made good to the

Engineers satisfaction and the items shall be given a final coat of all aluminium paint

262 Galvanizingmiddot

a) Before delivery to the site columns masts steel brackets and extemal

fittings shall have all extemal welds ground down Poles and other ferous materials shall

be galvanized both inside and outside by hot dipped in accordance with ASTM A 625-76

Weight of zinc coating shall not be less han 550 gram per square meter

14

b) Base of columns both inside and outside shali be coated with bituminous paint

up 10 a level o 25 centimeters above the base plate

3 Construction Methods

31 Excavation and Reinstatement

Excavation for cable or conduit laying or for foundations and reinstatement

shall be Darned out in accordance with thaprovisions of Section 25 (Sub-Clause 2632)

of 1hampS6 specifioations Reinstatement shall be suoh that the surface is restored to at

east its original standard

32 Concrete Work

All necessary foundations and footings or other concrete work shall be

carried out in acoordance with Sections 61 (sub-Clause 5112) and 02 of these

specifications Unless otherwise specified on the Drawings or in the Speoial Provisions

ooncrete shall be olass 8 Foundations shail be placed in one operation except that the

top 5 oentimetars may be placed after the superimposed structure is In position The

el(posed portions of foundations shall be formed to present a neat and tidy appearance

and sloped to shed water aV)lay from the structure supported Where existing

obs1ructions prevent the construction 01 foundations as shown on the plans then an

effective alternative may be provided subject to the prior approval of the Engineer

amp Ministry of National Development Department of Highways Specification For Highway

Construction 1970 Bangkok Thailand

- shy

15

33 Conduits fittings and boxes

Copduits fittings and boxes shall be providsd and installed in accordance

with the provisions of Section 511 of these Speoifications except that chemically stable

tough plastic conduits fittings and boxes aocording to samples previously approved by

the Engineer will be permitted providing thet they do not soften when exposed to high

ambient temperature

The contractor may use alarger size of conduit than that specified at no

extra charge if he wishes but in this case the entire run shall be of the same size No

reducing touplings will be permitted

When metal conduits ara used cuts shall be made square amp11d true and all

couplings shell Ie screwed up until the ends of the conduits are brought together in order

to proVide a good electrical contact throughout The threads on all ferrous metal oonduits

bullsh8l1 be painted with rusT preventing paint before couplings are made up Where themiddot

coating on ferrous metal conduit has been dam~ged In handHng such damaged places

shall be painted with rust prevanting paint before installation

All conduit ends shall be threaded and capped until wiring is started When

caps are removed the threaded ends shall be provided with approved conduit bushings

Conduits shall be laid to a depth of not less than 50 centimeters below

pEIVed footwalks and medians and not less the 75 centimeters below the roadway

surface The location of all conduits at curb lines shall be marked by means of a Y at

laaat 10 centimeters high incised in the face of the curb directly above the conduit

Conduit terminating in iii standards cabine1s or pedestals shaH extend at least 5

C9Iltimeters vertically above the bottom of the box Such conduit shall be sloped towards

the top of the box to facilitate pulling Conduit entering the bottom of the box shall enter

in the direction of the run

16

34 Pull boxes or Junction Boxes

Pull boxes shall be installed as shown on the plans and in any case at not

more than 00 meters intellals The contractormiddotmay install additional pull boxes without

extra charge jf he wishes Pull bo)(es shall be of reinforced concrete not less than 10

centimeters thick and may be of approved pre-cast deSign Reinforced concrete covers

acoured by two recessed brass bolts shaff be used on faatwalks the covers baing

inscribed Street Ughting on the outside Under the roadway covers shall be of steal or

oast iron inscribed as specified middotabove andlaid in II suitable concrete footing to withstand

trecffic loads Metal covers shall be effectivalr earthed to an earthing rod inside the box

Tops of puUboxes ~Ilan beeffectivoaly level with the slrfOunoing paved areas whether

footwslk or roadway but in unpaved areas the tOpl of pull boxes shall be buried 30

oentimeters below groul1d level The bottom of pull boxes shall be bedded in sand and

cement or crushed rock Permanent makers shall be provided and erected

toshow the position of all pull boxes

35 Tasting

A funotional test shari be made on completion of the work n order to

demonStrate thet every part of the equipment and installation fUllctionS as intended and

specJfled This test shall consist of not less ~a~ five nights continuous and satisfaatOlY

operation If any defects or unsatisfactory operation are revealed this condition shalf be

oorrected imd tne test continoued until the required five nights of satisfaotory opera~ion

have been performed

Prior to the functional test tlie contractor shaff carry out thefollowing

tests to the entire satisfaction of the Engineer

1) Each circuit shall be iested for oontinuity

2) Each circuit shall be tested for cething

shy

17

1

- ~ j

3) A m~gger test shall be made between eaoh cirouit and eart) The

Insulation fesistance shall be shown to be at least that specified within the relevant

codes

4) The distribution horizontal illumination valve of specified spacing in eaoh

code item in rale 6flux measured between two iuminair as avery two meters along

longitudinal and transverse road way line are essentially measured to show maxmean

min illuminati and uniformity ratios

Uniformity ratio minimum illumination average illumination

= not less than 126

and maximum illumination

minimum illumination

not more than 61

5) Rainproof Test

The lantern under test shall be mounted in its normal orientation on en

adjustable sUpPOrt as shown in fig 1 so that the fitting is near the center of the arc

desoribed by 1he oscillating tuba

After being switched on for one hour the lantern shllil be subjected to II

spray of water at a temperature not exceeding 200 C and ilt e pressure of approximately

67 Ibsin2 104 kgscm2i the tube being oscillated so as to describe an angle of SO

degrees from the vertical and in both directions from it This treatment shall be continLllld

for 20 nilnutes the fitting being switcher off after 10 minutes

- shy

18

i

At tha end of this test there shall be to damage to the lamp or enclosure

and no visible evidence of water having aocumulated it the fitting

04 rnm dlo hDln

Fig Apparatus for rainprooftest

On the completion of testing the contractor shall supply to the engineer

three copies of as buill plans and circuitdiagrams whicn shall clearly indicated any

modifications which have been made to the original design

4 Measurement

41 Unless a Bill of quantities is provided thjs item will not be measured and payment

shall be made one lumpsum basic

42 When a Bill Of Quantities is provided measurements shall made on the items detailed

In the Sill of quantities completed accepted and neesured in place The unit of

measurement for each item shall be the unit of measurement shown in the Bill of

Ouentitias

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19

bull

5 Payment

51 The lump sum payment for the street lighting installation shall be full compensation

for furnishing ell materials labour equipment tools supervisiorl testing and incidentals

neossary to complete the work inoluding any necessary backfill foundations restoration

of footwalk roadway curbing and appurtenances damaged or destroyed during

construction The payment shall also cover the cost of design where this Is called for

The ILlmp sum paymEmt shall be deemed to include full compensation for

all additional materials and work not shown on Ihe Drawings or specified which are

nesessary to complete the installation

62 The work measured as provided in 42 shall be paid at Ihe contraot unit price for eacl1

item such price and payment constituting flln compensation for aU materials labour

equipment tools and incidentals nseded to complete the work All materials Bnd work

necessaJY for satisfactory completion of the installation which are not specifically

mentioned in the Bilt of quantities shall be deemed to be included in the items shown

corw~ors 6 Information to be supplied by bidtfelS

61 catalogs at electrioal components lanterns ballast etc

62 Plans and circuit diagrams ground rod connection diagram

S3 Photometric data

631 Utilisation Curve

632 Isoc8ndala diagram bull

633 Horizon~81 isofootcandle diagram

634 Polar light distribution curvs

64 Cataisl of columns BraCKets Base Plates concrete foundations

20

7 Other details of steel columms not mentioned above should comply with British

Standard 1840 1960 The decision shall be made by the Department

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nT)J vn~j~fJgtlUlaquofJlvi1 L jjU nlfYI Iilil Ill vi~d 1121 11 VI iiil1J-liPIphrh laquo~tl4~~h POWER FACTOR flfJllJ t1i1tlVllUJIIllflUlll

bull

~)J i11EltU~lltflll 11111 Lt~~ IIN IiflPl 1n1In1itit~ fn1Yl laquon~ru

na~tI-1nU4llrJLlUlJ~ltlL1hJ1l1ltJ1WlllgtlLtiI)J LUlfim~ru nli ~

ni~ EJlhIiq bfllIfLJJtI~gtl

i1 i1lllbf)~ l iJ gtJ r11111 i1liIM1rJlIRtJ L~e-rli1

nlilliljllllJlnuflnVllltNihfl~lvjYlV11wm11~mjtJ POWER bull

FACTOR hi~m~1 09 LAG Will i1l1~J1hjjll1li1l~1ljjlU~lJfllflll

fIHlbrmW~1 nrl1 05 MEGoHM

112 2 Vli1lfliJll1i11llllJlhW1l1ul1J~fIlJlll1ill~J~lt 1Mr)~~11JLl 2l1lt1

tlHhlLlIlfiZ i~UnlJ~l ~MiJlh~1n~l 05 MEG OHM

U23 I1Q1f1il1l1ll GROUND RESTSTANCE lI1l~nl~Ill1lfllPU Llviil~Iltli1li

iiIl10~1U11jLii 25 OHM

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2 tThftEl~ft141iiflltlUUflW1U yenl~1P1n~1llihLfl-lfl~1~lI1ti11ru~PiIl~J1j (hrutifNI~11jUUflniu1ti Jum liell11Y11lJIlWLPiUL~)YJnlll~ il4fll itutll~-3d

21 MAIN INCOMING SWITCH BOARD xlllulbJ~)lJ1lf1f1L1iWI~1llJnU 11 ~ J ~ lV I~ bull J ~ lJt 11 1-11flvnnl~~~YlIWlflVIlUIi m1lj lU~1LLU~I1I1j1lm IUnl1I1lfll

IttJLlntlI1ht-11nlfi

22 I1ftl-1H FUSE ~1lJ11VilafifJll~i~1u1l t2middot

ll ~tl J ~l 11oj23 lt10flllllUl-1lnUn11 1 NlT JHuU ~1lJ11JIllflEl(i)Yl1Z1lIHUlIil 13

j

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ilitlttJal SAFTY SWITCH 1tl FUSE lItl4HI1VflJ 1mUUfi1f1i~iliu ~flJ

Lutn1tnutl7-lllhnlVl1u i~dju1tlvn lJ t1tlitfl poundIf1~ltlJ1ntllftl 4

WliVl1 ndluIl1a~~ultllUll n111ll NrnIlU1ln il 1Ii1UI~tN1JtlJIilllJtll

~ bullbull I ~ t J Ii I inll1nll1Ull~fl) UUU A MnJllUUl TW VlUI1~lJ1[1I11IWajllflllllJnlbil

lrlh1Ifth~U~1l AMPERE jJfl~ilifl4rill1 ~-l~ ~lJ~1iIUIlii1l~fl~WUllf)n-i1 ~ ~ t - Il1 I - ~ Jv 4 fIl1l-l~ flflUJIll1 ulI~I~lil-lLIIIlJfl1 fJ lJ Lm I1Utl1YllfI1l1llllB-4l~ 1 lI~I t

Iifl~lillJL~1jJWlV112 ~W1I110 ~Jil185 UJIlI1 1-11El 6 LJJfl1~li1rl ~U~Pl~l~

I CLEVIS tlUhlllkl-ll1~1n~1 SECONDARY RACK jJ1l4m1~YlrhlIm~N

30middot 60 loitlelUJlIl1 llilpoundlltiltffregmiddotwiltluf11t1fl1atoyenU1tJ1N 160 UJ911 rilLInll

I~Utl1t1~ll~l ~1l1atUlVlTWI ~tNt-nfllllllil1l iIil-l n 1~Hh LI1I1V1ftNltUtJ

l) - ~ ~_UI yC M1flllUlltlU~1jJNiUJUPllvnllujJnu L(1jU IUVlfl1fl2Jtl1 tI nnf1lt1l111 fl1iI1)1U I

fl~n~ IRIGID STEEL CONDUIT) tlI1U~1l1i1U1l~ll1fJItlnilWllJPI~YII

rMfuA1t1~tIlJil1ml1~l~fl)IJJ(lti ENtRANCE CAP

26 mfL~lJl1tll1n SWITCH BOARD tueT-l LOAD I~eiluhJIJ11jJrlfj ~ 11 Ji I ~ l

rZlalflll bUlIil 15 Yl4U MlJrImiddota1lEJIlUIUlJUfJltliIlU~IlEJ

2~ mnitl1un1fJ1Ulfl1~ultJu41ilHLfl~~~lil~mftlgtlLLI1~IOll1tlm)J1tJ fltL~~fIlUfa 16

26

27 M~~raquo~jt1l~minmltllllliiP1llliJifl~3j CARTRIDG E FUSE Llh~middothllnlJ 8 17 ehutfl~~~ll111 rnlllJ 1~1~~FllIiWItifltlUPIJ1~Jfl2ltJ1U1n Wlnu 10 ~bull~ ~1 1 I~~ tvlJil CARTRIDGE FUSE l-t1e CIRCUIT BREAKER

111)1) ~ lJl-lluvi1Utl-l~~Ejnu 28 n111ia LltlmlJtJ~tHi1IJJlJ ~fBN111flJt~tlnw1liUlt f) rlU~ 18 AlU

lU1lt~tl~lHUfl ~J I-l1~~Ln1tJrll-ltfrNf~Wlll~Yi1U Ilill~lIitltUOfllN ~ ~

tflfl1lJlf~nfl (CONNECTION BOX) lIill1lilllnWu1L~h~lilthuu LI1l2ltrt bull J 4 11 ~ 1 I_

fltllUl n~11l11 111 WIRE JOINT SIllfjJfl~VIl ~1lllUPljJU l-t7poundluUUuUmI

L1tHililn~ LLft)UliUliltliI~~tih~1 ~tlrnfJU~1lfuli~H11 tI

(INSULATING SEALING COMPOUND) ILfl~Uyjlllill TAPE IIiWtlhl1nnfu

fIltllri~1ttMIIl1lln 1 Ull~ ~ft)+tJrl tlil11ilyjlhDll~ntilllnlJt~flh~ llfl~Il)nUlvrfJI~lJVPl~laRIGID CLAMP llll RIGID CLAMP BACK middotflfI

vlllnuillNfiTl-Ul ll1ulllUYjntRl- (EXANSION Bom dll-lfUfltYllIJ

fl~m11il1~tor BOLT AND NUT yfiJ)IltW)1Jnjflfll2lhfufI~I1IJ~n

tg)tJM~ua tIllwfflz4J1liha)h~ flUWlnunltj1 50 L4u~ rtI Pl1

29 lIlllM91lht~lJlJmtriflfllJIN~umiddothllilu1t1~1lJ11~flLliltJ~r1l171uffj 19191192193 194l11 196

210 VOLTAGE DROP ~11u1tlIll1lJ1lJilI~ltIl~1~lnuftl 110

211 011JI1ln1ll~I~1ill4Jil1Juuulw~rl1UtllflUMlflLI11P1lllilf111l11uoffEJ

111 t~nulvHh1JPrnfll~lrt1tnillJnlfMllltllJ~)l

112 n1r lYlihlll nllll~I phlilUn11jllj~J~ftflUIlI1ll11tJfilfIilflvltL1rhfie

11211211122 Ul 1123

3 rilll1Y1wmJM~1lllnJl11lJ Uft1I1IildhfJ I-1SJltJOIt 1ruUlrl-MlUtil

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tt~l~fi1MfteINihfJUflmlaquoutl1-lvh-l 1 iJ~lLLUh~d

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27 bull

31 MAIN INCOMNG SWiTCH BOARD li-YLUWttJ~ll1r1JIlIL~Eli1l~1lJ1U~~ 11 r-

~

) 32 n1Tloft fUSE ~dj1amphJIn1wmJlL~ICl~rlJ1llolrl 12 i

1 ~ i- ~ 0J

) 33 1A1fllJli1lI1l)lnUm1 1 ~I mthHtl~nm1tlilltlfJt1lmlJlnuiitl 13 ~ J_

34 n11LMU~lallnj1)Ill(Il1lPllLIl1lJVl1 01 MAININCOMING SWITCH ttlZ

IiitlhJ~~ SAFTY SWITCH 11l FUSE ll1l~NI1rlfla~1i~lJ 1 Vjn111l x~ilUhj lJI

P113-11UlflLJ tl6iYl1tJ tUlJ1l 24

36 n11i~USlfl9ln MAiN INCOMiNG SWITCH BOARD 1tltT~ LOAD 1A1nerlilf

~UllaquoliluhJumn1pound1Ii1aj1)~-llmW1ill 15bull

36 n11L~Uf11JlmJhlt~1tll~~~ LUWtflgt11~lil1J1tl111w11a111ilrt~ 1~tMlu ~il 16

)-llriillllllfl+JLlrm PHASE JJMn1In91LtllflJ~11i1iili CARTRIDGE

FUSE ilfl~nU n1ffil~~JU

nmll~1auemrlll lLl-Iull1flNl1tilla11Xt1J-u 111 1 -I 11tml1i1a~~lJHhdftl

18 v -I ~_I oj J ~I

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192 193 194 LIS 195

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311 nilJm~Vlfll-l~tir1l ~)jtltJllUU1W~IJ 1Jlnm1 ~~11l1ilmriruullYlriEl

hl t~Ji1ntll1l~tJtlrn~~rliltdfil 111 ~n11hl~1JllmflJHtlnntlu mi3I)9DUffl1lEJ

312 rntIYl1UflnlilW~tlhiilWn1lIij1ll~fl1l1il1)J rJfJlliiiaVl~jtjnUfil 112

11211122 LUI 1123

28

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70 188 121 l

~ i 96 231 160 i

I 170 ~268120

dbull

r -

29

bull Na 86W 108 Watt

135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

bull 1OOOW 1043 Watt

9 fIl 1W-7tJNIIIJfiltJltilltllli~ 1iifl~1tnlfHtltll fI

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30

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Page 13: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

C

c

B

Required minimum Average Horizontal lruminatlon

in lumens per Square Meter (Lumens per Square Footl

Central-Urban Sub-Urban Rural

Areas Areas Areas

High Grade MotorWays 215 (201 150 (14) 1075 (10)

At J~notions 215 (2Q) 215 (20) 150 (14) jgt Main Routes 215 (20) 130 112) 97 (09)

I Seo90dary Routes 130 112) 97 (09) 65 (06)

I Local Roads 97 (09) 65 (06) 21 (Q2bullbullI (Residentiaj

areas only)

The Contractor shalt certify that the design of the installation has been

done in accordanoe with American Standard Practice for Roadway lighting (D 121 shy

1~l pubished by the lIIumnating Engineering Society 345 East 47th Street New York

or in accordance with British Standard Gode of practice CP 1004 of 1963 Street lighting

Published by the British Standards Institution 2 Park Lane London WI except in so tar

8S these have baen varied by the provisions of this speoification or any special provisions

22 Wiring end Switching

The Wiring and switching supplied for control of lanterns (each device bull

controlling B group of lantern) shall be of a type approved by and agreed with thei

Electricity Supply Authority Unless otherwise specified photoelectrio relayswitching shall

be used

shy

9

23 Columns and Brackets

ltII Columns shall be of steei construction ai1d shail consist of tapered

round hollow shafts with anchor bases Each column shall be provided with a suitable

cable slot and a weatherproof service door fitted with a tamperproof lock All locks shall

be of the same pattern and six keys shall be provided for them

b) A non-hygroscopic mounting bord cqmposed of electrically insulating

material shall be fitted in an easily acoessibfe position inside the column and ehall be of

c suitable size to take all necessary electrical equipment Adjacent to this mounting bosrd

there shall be prollided on the inside of the column tWo stainless steel studs not less

than 4 centimeters long nor less than 8 millimeters diameter and compi~t8 with stainless

steel look nuts and washers for use as earthing connections

c) Brackets to provide the required Outreach shall be of sufficientlv strollfij ~

bull construction to support the lantern under all normal conditions without significant 1

movement and shall be provided with suitable fittingsto take thelantems When in

positioo bralt~ts shall be inclined upwards at an angla of approximately 1SO to the

horizonaIand shall be fixed to their supports by suitable welding fastenings or wall

C plates

dl Columns and brackets shall be strucrursl steel having the following

mechanical properties

bull Thiokness of sheet steel (min) 4mm

~ Ultimate TeruJlie Strength (min) 41 kgQ1m2 Imiddot

bull Yleld Point (min) 25kgmm2

- Elongation (min) 21

oj Straightness That part of the column above the ground shtll not deviate

from straightness by more than an amount calculatad at II rate of 21 mm per meter of

column length ~

lmiddotmiddotmiddoti~- I shy

~

bull 10

24 High Mast Lighting

Mounting heights from 20 meters and more shail be High Mast

a) Columns carrying high mast lighting shall be designed to permit the

whole of the lantern carriage to be easily s6fely and quickly lowered to ground level for

maintenance works The columns shail bee designed in accordanoe with British Standard

449 or other internationally aocepted standard for design of structural steelwork in

buildings except that the temporary horizontal defleotion of the top of the column may to

up to 75 of the height above ground In calculating the tending moment at ground

level due to wind load it shall be assumed that the wind speed at B point ten meters

above ground level is 60 kjiometers per hour and the design of the column hall be such

that wind excited oscillations are damped as much as possible Adequate allowance shalf

be Ij1sde for the stresses produced by 6uoh oscllationslt Details shall be given of the

vertical and horizontal load Bnd the bending moment at the foundations

bl The base plate shall ba free from laminations and all dimensions of the

base plate shall be provided including details of the holding down belts A cable entry

hole of not less than 30 cen1imeters diameter shalf be prCNided centrally in each base

middot c plate and the bottom of lile maat shall pass through the base plate and be welded onC

both sides An altsmstiv9 construotion of equal strength may be accepted by the

Engineer but a butt weld on the base plale will not be accepted

Each holding down belt shall be tensioned to the design value and within

the maintenance period the bolts shall be checked and retightened 8S necesllsry after

Whioh the nuts shalf be repainted

oJ The columns shall be deli~ered to the site in the minimum practicable

number of lengths Any joints necessary shall be positioned as near the top of the

Qotumns as possible

11

(

d) The lantern carriage shail support the designed number of lanterns

Vithiout significant sway or movement and shall be capable of supporting these lanterns

II cradle with two men for maintenance work The lantern carriage shall be protected

prevent damage to the painted surface of the columns rotation of the carriage during

6IgtIIIJ and lowering shall be prevented and correct location when raised shall be ensured

some positive means It sha be possible to remove the lantem carriage without

illwerirl1l the column

el The lantern carriage shall be raised and lowered by a self sustaining

capable of being operated either by hand or by a portable electrically operated tool

middotIt shall be possible to lock the winch in any position by a simple robust and easily

operated mechanism The worm gear shall have a ratio of at Ieast 201

f) The winch shall have removable handles and it shall be mounted within

the base compartment at a convenient Vcrking height The opening in ths column shall

be of sufficient size to allow proper operation and maintenance of the winch mechanism

A weatherprClOf lab1 shall be fixed in an obvious position wihtn the column base giving

a full list of allmiddot lubricating points on the winch and other mechanism and detail of

recommened lubricants Winches fixed inside the column shall bs provided with a

substantial cover to fully protect them failing dirt and dust

gl A sufficient number of turns of the hoisting cable shall be left on the

winch drum when the carriage is fully lowered to ensure that the cable anchorage on the

drum do~s not take the full load of the carriage at any time

hI the last 30 centimeters of travel to t~e fully raised position of the

carriage shall be by hand operation and for lhis purpose either a limit switch shall be

provided to cut off the power supply to the portable electric tool at the appropriate time

or else some form of indication shall be provided to indicate when the carriage is 30

centimeters from the fully raised position

12

c

c

y

i The winch cable shall be of stranded stainless steel wires and shall have

sufficient capacity to carry safely the lantern carriage complete with lanterns and a cradle

with two men attached thereto Great oare shall be taken during installation to ensure

that the hoisting cables do not twist or kink and any set twist Of kink shall be sufficient

rflsson for the rejection of that cable

j) All parts of the raising and loWering mechanism which are inaccessible

after erectlon of the oolumns shall be adequately protected against moisture dirt and

corrosion Where neoessary pulleys shall be fitted with shields to prevent the winch

cable becoming displaced Pulleys for electrioal cables shaH be of sufficient dimameter

that the cablll will not be bent to a smaller radius then that permitted by loca relulations

or those of the British Institutiof of Electrical Engineers 14th Edition Where necessary

for continued tfOllbe free operation metal parts shall be of stainless steel or other

approved non-corrodible material

kl When pewsr tool operation is used a suitable power outlet shall be

providad and the operalor shall be adequately safeguarded against any electrical shocks

rhe power tool shall preferably be designed to work on a reduced voltagee end in this

OBse a suitable approved type of translormar shall be provided The power too shall be

designed so that continuOlls operation will cause no harmful effects on either the winch

Of the tool and in the event of power failure the winch shall be self locking Conversion

from power to hand operation and vice versa shall be quick and easy and shall not require

spacial tools Full imOfmallon on tha type of power tool proposed shall be given with the

lender

c I J J middot1 I

j

c

13

bull

25 Protection Against Corrosion

Unless otherwise spceified columns bracket arms and brackets shall be

protected against corrosiOil eithsr by painting or galvanizing as follows

261 Painting

sl Cou~ns and masts shall be treated internalty with hot asphalt under

high pressure so as to givB a complete arid unbroken asphaltic coVering or other approved

anti-corrosion treatment shalt be applied to give at least equally good protection Bas63

shall be similarly treated up to a level of 25 centimeters above ground ievel

b) Before delivery to the site columns masts steelltracKets and external

fitting shall have all external welds ground down ilnd all external surfaces cleaned by shot bull

blasting or other approved method to a whitsmetal finish free of all signs of rust

Immediately folJowil1g t~is treatment the items ahall be painted with two coats of tropical

red lead undercoat followed by two coats of aluminium paint or they shall be treated in a

similar and hot tass affective manner aoceptable to the Enginesr to present subsequent

oorrosion After Grection ali imperfections and damage shall be made good to the

Engineers satisfaction and the items shall be given a final coat of all aluminium paint

262 Galvanizingmiddot

a) Before delivery to the site columns masts steel brackets and extemal

fittings shall have all extemal welds ground down Poles and other ferous materials shall

be galvanized both inside and outside by hot dipped in accordance with ASTM A 625-76

Weight of zinc coating shall not be less han 550 gram per square meter

14

b) Base of columns both inside and outside shali be coated with bituminous paint

up 10 a level o 25 centimeters above the base plate

3 Construction Methods

31 Excavation and Reinstatement

Excavation for cable or conduit laying or for foundations and reinstatement

shall be Darned out in accordance with thaprovisions of Section 25 (Sub-Clause 2632)

of 1hampS6 specifioations Reinstatement shall be suoh that the surface is restored to at

east its original standard

32 Concrete Work

All necessary foundations and footings or other concrete work shall be

carried out in acoordance with Sections 61 (sub-Clause 5112) and 02 of these

specifications Unless otherwise specified on the Drawings or in the Speoial Provisions

ooncrete shall be olass 8 Foundations shail be placed in one operation except that the

top 5 oentimetars may be placed after the superimposed structure is In position The

el(posed portions of foundations shall be formed to present a neat and tidy appearance

and sloped to shed water aV)lay from the structure supported Where existing

obs1ructions prevent the construction 01 foundations as shown on the plans then an

effective alternative may be provided subject to the prior approval of the Engineer

amp Ministry of National Development Department of Highways Specification For Highway

Construction 1970 Bangkok Thailand

- shy

15

33 Conduits fittings and boxes

Copduits fittings and boxes shall be providsd and installed in accordance

with the provisions of Section 511 of these Speoifications except that chemically stable

tough plastic conduits fittings and boxes aocording to samples previously approved by

the Engineer will be permitted providing thet they do not soften when exposed to high

ambient temperature

The contractor may use alarger size of conduit than that specified at no

extra charge if he wishes but in this case the entire run shall be of the same size No

reducing touplings will be permitted

When metal conduits ara used cuts shall be made square amp11d true and all

couplings shell Ie screwed up until the ends of the conduits are brought together in order

to proVide a good electrical contact throughout The threads on all ferrous metal oonduits

bullsh8l1 be painted with rusT preventing paint before couplings are made up Where themiddot

coating on ferrous metal conduit has been dam~ged In handHng such damaged places

shall be painted with rust prevanting paint before installation

All conduit ends shall be threaded and capped until wiring is started When

caps are removed the threaded ends shall be provided with approved conduit bushings

Conduits shall be laid to a depth of not less than 50 centimeters below

pEIVed footwalks and medians and not less the 75 centimeters below the roadway

surface The location of all conduits at curb lines shall be marked by means of a Y at

laaat 10 centimeters high incised in the face of the curb directly above the conduit

Conduit terminating in iii standards cabine1s or pedestals shaH extend at least 5

C9Iltimeters vertically above the bottom of the box Such conduit shall be sloped towards

the top of the box to facilitate pulling Conduit entering the bottom of the box shall enter

in the direction of the run

16

34 Pull boxes or Junction Boxes

Pull boxes shall be installed as shown on the plans and in any case at not

more than 00 meters intellals The contractormiddotmay install additional pull boxes without

extra charge jf he wishes Pull bo)(es shall be of reinforced concrete not less than 10

centimeters thick and may be of approved pre-cast deSign Reinforced concrete covers

acoured by two recessed brass bolts shaff be used on faatwalks the covers baing

inscribed Street Ughting on the outside Under the roadway covers shall be of steal or

oast iron inscribed as specified middotabove andlaid in II suitable concrete footing to withstand

trecffic loads Metal covers shall be effectivalr earthed to an earthing rod inside the box

Tops of puUboxes ~Ilan beeffectivoaly level with the slrfOunoing paved areas whether

footwslk or roadway but in unpaved areas the tOpl of pull boxes shall be buried 30

oentimeters below groul1d level The bottom of pull boxes shall be bedded in sand and

cement or crushed rock Permanent makers shall be provided and erected

toshow the position of all pull boxes

35 Tasting

A funotional test shari be made on completion of the work n order to

demonStrate thet every part of the equipment and installation fUllctionS as intended and

specJfled This test shall consist of not less ~a~ five nights continuous and satisfaatOlY

operation If any defects or unsatisfactory operation are revealed this condition shalf be

oorrected imd tne test continoued until the required five nights of satisfaotory opera~ion

have been performed

Prior to the functional test tlie contractor shaff carry out thefollowing

tests to the entire satisfaction of the Engineer

1) Each circuit shall be iested for oontinuity

2) Each circuit shall be tested for cething

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17

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3) A m~gger test shall be made between eaoh cirouit and eart) The

Insulation fesistance shall be shown to be at least that specified within the relevant

codes

4) The distribution horizontal illumination valve of specified spacing in eaoh

code item in rale 6flux measured between two iuminair as avery two meters along

longitudinal and transverse road way line are essentially measured to show maxmean

min illuminati and uniformity ratios

Uniformity ratio minimum illumination average illumination

= not less than 126

and maximum illumination

minimum illumination

not more than 61

5) Rainproof Test

The lantern under test shall be mounted in its normal orientation on en

adjustable sUpPOrt as shown in fig 1 so that the fitting is near the center of the arc

desoribed by 1he oscillating tuba

After being switched on for one hour the lantern shllil be subjected to II

spray of water at a temperature not exceeding 200 C and ilt e pressure of approximately

67 Ibsin2 104 kgscm2i the tube being oscillated so as to describe an angle of SO

degrees from the vertical and in both directions from it This treatment shall be continLllld

for 20 nilnutes the fitting being switcher off after 10 minutes

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18

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At tha end of this test there shall be to damage to the lamp or enclosure

and no visible evidence of water having aocumulated it the fitting

04 rnm dlo hDln

Fig Apparatus for rainprooftest

On the completion of testing the contractor shall supply to the engineer

three copies of as buill plans and circuitdiagrams whicn shall clearly indicated any

modifications which have been made to the original design

4 Measurement

41 Unless a Bill of quantities is provided thjs item will not be measured and payment

shall be made one lumpsum basic

42 When a Bill Of Quantities is provided measurements shall made on the items detailed

In the Sill of quantities completed accepted and neesured in place The unit of

measurement for each item shall be the unit of measurement shown in the Bill of

Ouentitias

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19

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5 Payment

51 The lump sum payment for the street lighting installation shall be full compensation

for furnishing ell materials labour equipment tools supervisiorl testing and incidentals

neossary to complete the work inoluding any necessary backfill foundations restoration

of footwalk roadway curbing and appurtenances damaged or destroyed during

construction The payment shall also cover the cost of design where this Is called for

The ILlmp sum paymEmt shall be deemed to include full compensation for

all additional materials and work not shown on Ihe Drawings or specified which are

nesessary to complete the installation

62 The work measured as provided in 42 shall be paid at Ihe contraot unit price for eacl1

item such price and payment constituting flln compensation for aU materials labour

equipment tools and incidentals nseded to complete the work All materials Bnd work

necessaJY for satisfactory completion of the installation which are not specifically

mentioned in the Bilt of quantities shall be deemed to be included in the items shown

corw~ors 6 Information to be supplied by bidtfelS

61 catalogs at electrioal components lanterns ballast etc

62 Plans and circuit diagrams ground rod connection diagram

S3 Photometric data

631 Utilisation Curve

632 Isoc8ndala diagram bull

633 Horizon~81 isofootcandle diagram

634 Polar light distribution curvs

64 Cataisl of columns BraCKets Base Plates concrete foundations

20

7 Other details of steel columms not mentioned above should comply with British

Standard 1840 1960 The decision shall be made by the Department

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bull Na 86W 108 Watt

135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

bull 1OOOW 1043 Watt

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Page 14: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

9

23 Columns and Brackets

ltII Columns shall be of steei construction ai1d shail consist of tapered

round hollow shafts with anchor bases Each column shall be provided with a suitable

cable slot and a weatherproof service door fitted with a tamperproof lock All locks shall

be of the same pattern and six keys shall be provided for them

b) A non-hygroscopic mounting bord cqmposed of electrically insulating

material shall be fitted in an easily acoessibfe position inside the column and ehall be of

c suitable size to take all necessary electrical equipment Adjacent to this mounting bosrd

there shall be prollided on the inside of the column tWo stainless steel studs not less

than 4 centimeters long nor less than 8 millimeters diameter and compi~t8 with stainless

steel look nuts and washers for use as earthing connections

c) Brackets to provide the required Outreach shall be of sufficientlv strollfij ~

bull construction to support the lantern under all normal conditions without significant 1

movement and shall be provided with suitable fittingsto take thelantems When in

positioo bralt~ts shall be inclined upwards at an angla of approximately 1SO to the

horizonaIand shall be fixed to their supports by suitable welding fastenings or wall

C plates

dl Columns and brackets shall be strucrursl steel having the following

mechanical properties

bull Thiokness of sheet steel (min) 4mm

~ Ultimate TeruJlie Strength (min) 41 kgQ1m2 Imiddot

bull Yleld Point (min) 25kgmm2

- Elongation (min) 21

oj Straightness That part of the column above the ground shtll not deviate

from straightness by more than an amount calculatad at II rate of 21 mm per meter of

column length ~

lmiddotmiddotmiddoti~- I shy

~

bull 10

24 High Mast Lighting

Mounting heights from 20 meters and more shail be High Mast

a) Columns carrying high mast lighting shall be designed to permit the

whole of the lantern carriage to be easily s6fely and quickly lowered to ground level for

maintenance works The columns shail bee designed in accordanoe with British Standard

449 or other internationally aocepted standard for design of structural steelwork in

buildings except that the temporary horizontal defleotion of the top of the column may to

up to 75 of the height above ground In calculating the tending moment at ground

level due to wind load it shall be assumed that the wind speed at B point ten meters

above ground level is 60 kjiometers per hour and the design of the column hall be such

that wind excited oscillations are damped as much as possible Adequate allowance shalf

be Ij1sde for the stresses produced by 6uoh oscllationslt Details shall be given of the

vertical and horizontal load Bnd the bending moment at the foundations

bl The base plate shall ba free from laminations and all dimensions of the

base plate shall be provided including details of the holding down belts A cable entry

hole of not less than 30 cen1imeters diameter shalf be prCNided centrally in each base

middot c plate and the bottom of lile maat shall pass through the base plate and be welded onC

both sides An altsmstiv9 construotion of equal strength may be accepted by the

Engineer but a butt weld on the base plale will not be accepted

Each holding down belt shall be tensioned to the design value and within

the maintenance period the bolts shall be checked and retightened 8S necesllsry after

Whioh the nuts shalf be repainted

oJ The columns shall be deli~ered to the site in the minimum practicable

number of lengths Any joints necessary shall be positioned as near the top of the

Qotumns as possible

11

(

d) The lantern carriage shail support the designed number of lanterns

Vithiout significant sway or movement and shall be capable of supporting these lanterns

II cradle with two men for maintenance work The lantern carriage shall be protected

prevent damage to the painted surface of the columns rotation of the carriage during

6IgtIIIJ and lowering shall be prevented and correct location when raised shall be ensured

some positive means It sha be possible to remove the lantem carriage without

illwerirl1l the column

el The lantern carriage shall be raised and lowered by a self sustaining

capable of being operated either by hand or by a portable electrically operated tool

middotIt shall be possible to lock the winch in any position by a simple robust and easily

operated mechanism The worm gear shall have a ratio of at Ieast 201

f) The winch shall have removable handles and it shall be mounted within

the base compartment at a convenient Vcrking height The opening in ths column shall

be of sufficient size to allow proper operation and maintenance of the winch mechanism

A weatherprClOf lab1 shall be fixed in an obvious position wihtn the column base giving

a full list of allmiddot lubricating points on the winch and other mechanism and detail of

recommened lubricants Winches fixed inside the column shall bs provided with a

substantial cover to fully protect them failing dirt and dust

gl A sufficient number of turns of the hoisting cable shall be left on the

winch drum when the carriage is fully lowered to ensure that the cable anchorage on the

drum do~s not take the full load of the carriage at any time

hI the last 30 centimeters of travel to t~e fully raised position of the

carriage shall be by hand operation and for lhis purpose either a limit switch shall be

provided to cut off the power supply to the portable electric tool at the appropriate time

or else some form of indication shall be provided to indicate when the carriage is 30

centimeters from the fully raised position

12

c

c

y

i The winch cable shall be of stranded stainless steel wires and shall have

sufficient capacity to carry safely the lantern carriage complete with lanterns and a cradle

with two men attached thereto Great oare shall be taken during installation to ensure

that the hoisting cables do not twist or kink and any set twist Of kink shall be sufficient

rflsson for the rejection of that cable

j) All parts of the raising and loWering mechanism which are inaccessible

after erectlon of the oolumns shall be adequately protected against moisture dirt and

corrosion Where neoessary pulleys shall be fitted with shields to prevent the winch

cable becoming displaced Pulleys for electrioal cables shaH be of sufficient dimameter

that the cablll will not be bent to a smaller radius then that permitted by loca relulations

or those of the British Institutiof of Electrical Engineers 14th Edition Where necessary

for continued tfOllbe free operation metal parts shall be of stainless steel or other

approved non-corrodible material

kl When pewsr tool operation is used a suitable power outlet shall be

providad and the operalor shall be adequately safeguarded against any electrical shocks

rhe power tool shall preferably be designed to work on a reduced voltagee end in this

OBse a suitable approved type of translormar shall be provided The power too shall be

designed so that continuOlls operation will cause no harmful effects on either the winch

Of the tool and in the event of power failure the winch shall be self locking Conversion

from power to hand operation and vice versa shall be quick and easy and shall not require

spacial tools Full imOfmallon on tha type of power tool proposed shall be given with the

lender

c I J J middot1 I

j

c

13

bull

25 Protection Against Corrosion

Unless otherwise spceified columns bracket arms and brackets shall be

protected against corrosiOil eithsr by painting or galvanizing as follows

261 Painting

sl Cou~ns and masts shall be treated internalty with hot asphalt under

high pressure so as to givB a complete arid unbroken asphaltic coVering or other approved

anti-corrosion treatment shalt be applied to give at least equally good protection Bas63

shall be similarly treated up to a level of 25 centimeters above ground ievel

b) Before delivery to the site columns masts steelltracKets and external

fitting shall have all external welds ground down ilnd all external surfaces cleaned by shot bull

blasting or other approved method to a whitsmetal finish free of all signs of rust

Immediately folJowil1g t~is treatment the items ahall be painted with two coats of tropical

red lead undercoat followed by two coats of aluminium paint or they shall be treated in a

similar and hot tass affective manner aoceptable to the Enginesr to present subsequent

oorrosion After Grection ali imperfections and damage shall be made good to the

Engineers satisfaction and the items shall be given a final coat of all aluminium paint

262 Galvanizingmiddot

a) Before delivery to the site columns masts steel brackets and extemal

fittings shall have all extemal welds ground down Poles and other ferous materials shall

be galvanized both inside and outside by hot dipped in accordance with ASTM A 625-76

Weight of zinc coating shall not be less han 550 gram per square meter

14

b) Base of columns both inside and outside shali be coated with bituminous paint

up 10 a level o 25 centimeters above the base plate

3 Construction Methods

31 Excavation and Reinstatement

Excavation for cable or conduit laying or for foundations and reinstatement

shall be Darned out in accordance with thaprovisions of Section 25 (Sub-Clause 2632)

of 1hampS6 specifioations Reinstatement shall be suoh that the surface is restored to at

east its original standard

32 Concrete Work

All necessary foundations and footings or other concrete work shall be

carried out in acoordance with Sections 61 (sub-Clause 5112) and 02 of these

specifications Unless otherwise specified on the Drawings or in the Speoial Provisions

ooncrete shall be olass 8 Foundations shail be placed in one operation except that the

top 5 oentimetars may be placed after the superimposed structure is In position The

el(posed portions of foundations shall be formed to present a neat and tidy appearance

and sloped to shed water aV)lay from the structure supported Where existing

obs1ructions prevent the construction 01 foundations as shown on the plans then an

effective alternative may be provided subject to the prior approval of the Engineer

amp Ministry of National Development Department of Highways Specification For Highway

Construction 1970 Bangkok Thailand

- shy

15

33 Conduits fittings and boxes

Copduits fittings and boxes shall be providsd and installed in accordance

with the provisions of Section 511 of these Speoifications except that chemically stable

tough plastic conduits fittings and boxes aocording to samples previously approved by

the Engineer will be permitted providing thet they do not soften when exposed to high

ambient temperature

The contractor may use alarger size of conduit than that specified at no

extra charge if he wishes but in this case the entire run shall be of the same size No

reducing touplings will be permitted

When metal conduits ara used cuts shall be made square amp11d true and all

couplings shell Ie screwed up until the ends of the conduits are brought together in order

to proVide a good electrical contact throughout The threads on all ferrous metal oonduits

bullsh8l1 be painted with rusT preventing paint before couplings are made up Where themiddot

coating on ferrous metal conduit has been dam~ged In handHng such damaged places

shall be painted with rust prevanting paint before installation

All conduit ends shall be threaded and capped until wiring is started When

caps are removed the threaded ends shall be provided with approved conduit bushings

Conduits shall be laid to a depth of not less than 50 centimeters below

pEIVed footwalks and medians and not less the 75 centimeters below the roadway

surface The location of all conduits at curb lines shall be marked by means of a Y at

laaat 10 centimeters high incised in the face of the curb directly above the conduit

Conduit terminating in iii standards cabine1s or pedestals shaH extend at least 5

C9Iltimeters vertically above the bottom of the box Such conduit shall be sloped towards

the top of the box to facilitate pulling Conduit entering the bottom of the box shall enter

in the direction of the run

16

34 Pull boxes or Junction Boxes

Pull boxes shall be installed as shown on the plans and in any case at not

more than 00 meters intellals The contractormiddotmay install additional pull boxes without

extra charge jf he wishes Pull bo)(es shall be of reinforced concrete not less than 10

centimeters thick and may be of approved pre-cast deSign Reinforced concrete covers

acoured by two recessed brass bolts shaff be used on faatwalks the covers baing

inscribed Street Ughting on the outside Under the roadway covers shall be of steal or

oast iron inscribed as specified middotabove andlaid in II suitable concrete footing to withstand

trecffic loads Metal covers shall be effectivalr earthed to an earthing rod inside the box

Tops of puUboxes ~Ilan beeffectivoaly level with the slrfOunoing paved areas whether

footwslk or roadway but in unpaved areas the tOpl of pull boxes shall be buried 30

oentimeters below groul1d level The bottom of pull boxes shall be bedded in sand and

cement or crushed rock Permanent makers shall be provided and erected

toshow the position of all pull boxes

35 Tasting

A funotional test shari be made on completion of the work n order to

demonStrate thet every part of the equipment and installation fUllctionS as intended and

specJfled This test shall consist of not less ~a~ five nights continuous and satisfaatOlY

operation If any defects or unsatisfactory operation are revealed this condition shalf be

oorrected imd tne test continoued until the required five nights of satisfaotory opera~ion

have been performed

Prior to the functional test tlie contractor shaff carry out thefollowing

tests to the entire satisfaction of the Engineer

1) Each circuit shall be iested for oontinuity

2) Each circuit shall be tested for cething

shy

17

1

- ~ j

3) A m~gger test shall be made between eaoh cirouit and eart) The

Insulation fesistance shall be shown to be at least that specified within the relevant

codes

4) The distribution horizontal illumination valve of specified spacing in eaoh

code item in rale 6flux measured between two iuminair as avery two meters along

longitudinal and transverse road way line are essentially measured to show maxmean

min illuminati and uniformity ratios

Uniformity ratio minimum illumination average illumination

= not less than 126

and maximum illumination

minimum illumination

not more than 61

5) Rainproof Test

The lantern under test shall be mounted in its normal orientation on en

adjustable sUpPOrt as shown in fig 1 so that the fitting is near the center of the arc

desoribed by 1he oscillating tuba

After being switched on for one hour the lantern shllil be subjected to II

spray of water at a temperature not exceeding 200 C and ilt e pressure of approximately

67 Ibsin2 104 kgscm2i the tube being oscillated so as to describe an angle of SO

degrees from the vertical and in both directions from it This treatment shall be continLllld

for 20 nilnutes the fitting being switcher off after 10 minutes

- shy

18

i

At tha end of this test there shall be to damage to the lamp or enclosure

and no visible evidence of water having aocumulated it the fitting

04 rnm dlo hDln

Fig Apparatus for rainprooftest

On the completion of testing the contractor shall supply to the engineer

three copies of as buill plans and circuitdiagrams whicn shall clearly indicated any

modifications which have been made to the original design

4 Measurement

41 Unless a Bill of quantities is provided thjs item will not be measured and payment

shall be made one lumpsum basic

42 When a Bill Of Quantities is provided measurements shall made on the items detailed

In the Sill of quantities completed accepted and neesured in place The unit of

measurement for each item shall be the unit of measurement shown in the Bill of

Ouentitias

shy

19

bull

5 Payment

51 The lump sum payment for the street lighting installation shall be full compensation

for furnishing ell materials labour equipment tools supervisiorl testing and incidentals

neossary to complete the work inoluding any necessary backfill foundations restoration

of footwalk roadway curbing and appurtenances damaged or destroyed during

construction The payment shall also cover the cost of design where this Is called for

The ILlmp sum paymEmt shall be deemed to include full compensation for

all additional materials and work not shown on Ihe Drawings or specified which are

nesessary to complete the installation

62 The work measured as provided in 42 shall be paid at Ihe contraot unit price for eacl1

item such price and payment constituting flln compensation for aU materials labour

equipment tools and incidentals nseded to complete the work All materials Bnd work

necessaJY for satisfactory completion of the installation which are not specifically

mentioned in the Bilt of quantities shall be deemed to be included in the items shown

corw~ors 6 Information to be supplied by bidtfelS

61 catalogs at electrioal components lanterns ballast etc

62 Plans and circuit diagrams ground rod connection diagram

S3 Photometric data

631 Utilisation Curve

632 Isoc8ndala diagram bull

633 Horizon~81 isofootcandle diagram

634 Polar light distribution curvs

64 Cataisl of columns BraCKets Base Plates concrete foundations

20

7 Other details of steel columms not mentioned above should comply with British

Standard 1840 1960 The decision shall be made by the Department

shy

21

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Page 15: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

bull 10

24 High Mast Lighting

Mounting heights from 20 meters and more shail be High Mast

a) Columns carrying high mast lighting shall be designed to permit the

whole of the lantern carriage to be easily s6fely and quickly lowered to ground level for

maintenance works The columns shail bee designed in accordanoe with British Standard

449 or other internationally aocepted standard for design of structural steelwork in

buildings except that the temporary horizontal defleotion of the top of the column may to

up to 75 of the height above ground In calculating the tending moment at ground

level due to wind load it shall be assumed that the wind speed at B point ten meters

above ground level is 60 kjiometers per hour and the design of the column hall be such

that wind excited oscillations are damped as much as possible Adequate allowance shalf

be Ij1sde for the stresses produced by 6uoh oscllationslt Details shall be given of the

vertical and horizontal load Bnd the bending moment at the foundations

bl The base plate shall ba free from laminations and all dimensions of the

base plate shall be provided including details of the holding down belts A cable entry

hole of not less than 30 cen1imeters diameter shalf be prCNided centrally in each base

middot c plate and the bottom of lile maat shall pass through the base plate and be welded onC

both sides An altsmstiv9 construotion of equal strength may be accepted by the

Engineer but a butt weld on the base plale will not be accepted

Each holding down belt shall be tensioned to the design value and within

the maintenance period the bolts shall be checked and retightened 8S necesllsry after

Whioh the nuts shalf be repainted

oJ The columns shall be deli~ered to the site in the minimum practicable

number of lengths Any joints necessary shall be positioned as near the top of the

Qotumns as possible

11

(

d) The lantern carriage shail support the designed number of lanterns

Vithiout significant sway or movement and shall be capable of supporting these lanterns

II cradle with two men for maintenance work The lantern carriage shall be protected

prevent damage to the painted surface of the columns rotation of the carriage during

6IgtIIIJ and lowering shall be prevented and correct location when raised shall be ensured

some positive means It sha be possible to remove the lantem carriage without

illwerirl1l the column

el The lantern carriage shall be raised and lowered by a self sustaining

capable of being operated either by hand or by a portable electrically operated tool

middotIt shall be possible to lock the winch in any position by a simple robust and easily

operated mechanism The worm gear shall have a ratio of at Ieast 201

f) The winch shall have removable handles and it shall be mounted within

the base compartment at a convenient Vcrking height The opening in ths column shall

be of sufficient size to allow proper operation and maintenance of the winch mechanism

A weatherprClOf lab1 shall be fixed in an obvious position wihtn the column base giving

a full list of allmiddot lubricating points on the winch and other mechanism and detail of

recommened lubricants Winches fixed inside the column shall bs provided with a

substantial cover to fully protect them failing dirt and dust

gl A sufficient number of turns of the hoisting cable shall be left on the

winch drum when the carriage is fully lowered to ensure that the cable anchorage on the

drum do~s not take the full load of the carriage at any time

hI the last 30 centimeters of travel to t~e fully raised position of the

carriage shall be by hand operation and for lhis purpose either a limit switch shall be

provided to cut off the power supply to the portable electric tool at the appropriate time

or else some form of indication shall be provided to indicate when the carriage is 30

centimeters from the fully raised position

12

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i The winch cable shall be of stranded stainless steel wires and shall have

sufficient capacity to carry safely the lantern carriage complete with lanterns and a cradle

with two men attached thereto Great oare shall be taken during installation to ensure

that the hoisting cables do not twist or kink and any set twist Of kink shall be sufficient

rflsson for the rejection of that cable

j) All parts of the raising and loWering mechanism which are inaccessible

after erectlon of the oolumns shall be adequately protected against moisture dirt and

corrosion Where neoessary pulleys shall be fitted with shields to prevent the winch

cable becoming displaced Pulleys for electrioal cables shaH be of sufficient dimameter

that the cablll will not be bent to a smaller radius then that permitted by loca relulations

or those of the British Institutiof of Electrical Engineers 14th Edition Where necessary

for continued tfOllbe free operation metal parts shall be of stainless steel or other

approved non-corrodible material

kl When pewsr tool operation is used a suitable power outlet shall be

providad and the operalor shall be adequately safeguarded against any electrical shocks

rhe power tool shall preferably be designed to work on a reduced voltagee end in this

OBse a suitable approved type of translormar shall be provided The power too shall be

designed so that continuOlls operation will cause no harmful effects on either the winch

Of the tool and in the event of power failure the winch shall be self locking Conversion

from power to hand operation and vice versa shall be quick and easy and shall not require

spacial tools Full imOfmallon on tha type of power tool proposed shall be given with the

lender

c I J J middot1 I

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13

bull

25 Protection Against Corrosion

Unless otherwise spceified columns bracket arms and brackets shall be

protected against corrosiOil eithsr by painting or galvanizing as follows

261 Painting

sl Cou~ns and masts shall be treated internalty with hot asphalt under

high pressure so as to givB a complete arid unbroken asphaltic coVering or other approved

anti-corrosion treatment shalt be applied to give at least equally good protection Bas63

shall be similarly treated up to a level of 25 centimeters above ground ievel

b) Before delivery to the site columns masts steelltracKets and external

fitting shall have all external welds ground down ilnd all external surfaces cleaned by shot bull

blasting or other approved method to a whitsmetal finish free of all signs of rust

Immediately folJowil1g t~is treatment the items ahall be painted with two coats of tropical

red lead undercoat followed by two coats of aluminium paint or they shall be treated in a

similar and hot tass affective manner aoceptable to the Enginesr to present subsequent

oorrosion After Grection ali imperfections and damage shall be made good to the

Engineers satisfaction and the items shall be given a final coat of all aluminium paint

262 Galvanizingmiddot

a) Before delivery to the site columns masts steel brackets and extemal

fittings shall have all extemal welds ground down Poles and other ferous materials shall

be galvanized both inside and outside by hot dipped in accordance with ASTM A 625-76

Weight of zinc coating shall not be less han 550 gram per square meter

14

b) Base of columns both inside and outside shali be coated with bituminous paint

up 10 a level o 25 centimeters above the base plate

3 Construction Methods

31 Excavation and Reinstatement

Excavation for cable or conduit laying or for foundations and reinstatement

shall be Darned out in accordance with thaprovisions of Section 25 (Sub-Clause 2632)

of 1hampS6 specifioations Reinstatement shall be suoh that the surface is restored to at

east its original standard

32 Concrete Work

All necessary foundations and footings or other concrete work shall be

carried out in acoordance with Sections 61 (sub-Clause 5112) and 02 of these

specifications Unless otherwise specified on the Drawings or in the Speoial Provisions

ooncrete shall be olass 8 Foundations shail be placed in one operation except that the

top 5 oentimetars may be placed after the superimposed structure is In position The

el(posed portions of foundations shall be formed to present a neat and tidy appearance

and sloped to shed water aV)lay from the structure supported Where existing

obs1ructions prevent the construction 01 foundations as shown on the plans then an

effective alternative may be provided subject to the prior approval of the Engineer

amp Ministry of National Development Department of Highways Specification For Highway

Construction 1970 Bangkok Thailand

- shy

15

33 Conduits fittings and boxes

Copduits fittings and boxes shall be providsd and installed in accordance

with the provisions of Section 511 of these Speoifications except that chemically stable

tough plastic conduits fittings and boxes aocording to samples previously approved by

the Engineer will be permitted providing thet they do not soften when exposed to high

ambient temperature

The contractor may use alarger size of conduit than that specified at no

extra charge if he wishes but in this case the entire run shall be of the same size No

reducing touplings will be permitted

When metal conduits ara used cuts shall be made square amp11d true and all

couplings shell Ie screwed up until the ends of the conduits are brought together in order

to proVide a good electrical contact throughout The threads on all ferrous metal oonduits

bullsh8l1 be painted with rusT preventing paint before couplings are made up Where themiddot

coating on ferrous metal conduit has been dam~ged In handHng such damaged places

shall be painted with rust prevanting paint before installation

All conduit ends shall be threaded and capped until wiring is started When

caps are removed the threaded ends shall be provided with approved conduit bushings

Conduits shall be laid to a depth of not less than 50 centimeters below

pEIVed footwalks and medians and not less the 75 centimeters below the roadway

surface The location of all conduits at curb lines shall be marked by means of a Y at

laaat 10 centimeters high incised in the face of the curb directly above the conduit

Conduit terminating in iii standards cabine1s or pedestals shaH extend at least 5

C9Iltimeters vertically above the bottom of the box Such conduit shall be sloped towards

the top of the box to facilitate pulling Conduit entering the bottom of the box shall enter

in the direction of the run

16

34 Pull boxes or Junction Boxes

Pull boxes shall be installed as shown on the plans and in any case at not

more than 00 meters intellals The contractormiddotmay install additional pull boxes without

extra charge jf he wishes Pull bo)(es shall be of reinforced concrete not less than 10

centimeters thick and may be of approved pre-cast deSign Reinforced concrete covers

acoured by two recessed brass bolts shaff be used on faatwalks the covers baing

inscribed Street Ughting on the outside Under the roadway covers shall be of steal or

oast iron inscribed as specified middotabove andlaid in II suitable concrete footing to withstand

trecffic loads Metal covers shall be effectivalr earthed to an earthing rod inside the box

Tops of puUboxes ~Ilan beeffectivoaly level with the slrfOunoing paved areas whether

footwslk or roadway but in unpaved areas the tOpl of pull boxes shall be buried 30

oentimeters below groul1d level The bottom of pull boxes shall be bedded in sand and

cement or crushed rock Permanent makers shall be provided and erected

toshow the position of all pull boxes

35 Tasting

A funotional test shari be made on completion of the work n order to

demonStrate thet every part of the equipment and installation fUllctionS as intended and

specJfled This test shall consist of not less ~a~ five nights continuous and satisfaatOlY

operation If any defects or unsatisfactory operation are revealed this condition shalf be

oorrected imd tne test continoued until the required five nights of satisfaotory opera~ion

have been performed

Prior to the functional test tlie contractor shaff carry out thefollowing

tests to the entire satisfaction of the Engineer

1) Each circuit shall be iested for oontinuity

2) Each circuit shall be tested for cething

shy

17

1

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3) A m~gger test shall be made between eaoh cirouit and eart) The

Insulation fesistance shall be shown to be at least that specified within the relevant

codes

4) The distribution horizontal illumination valve of specified spacing in eaoh

code item in rale 6flux measured between two iuminair as avery two meters along

longitudinal and transverse road way line are essentially measured to show maxmean

min illuminati and uniformity ratios

Uniformity ratio minimum illumination average illumination

= not less than 126

and maximum illumination

minimum illumination

not more than 61

5) Rainproof Test

The lantern under test shall be mounted in its normal orientation on en

adjustable sUpPOrt as shown in fig 1 so that the fitting is near the center of the arc

desoribed by 1he oscillating tuba

After being switched on for one hour the lantern shllil be subjected to II

spray of water at a temperature not exceeding 200 C and ilt e pressure of approximately

67 Ibsin2 104 kgscm2i the tube being oscillated so as to describe an angle of SO

degrees from the vertical and in both directions from it This treatment shall be continLllld

for 20 nilnutes the fitting being switcher off after 10 minutes

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18

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At tha end of this test there shall be to damage to the lamp or enclosure

and no visible evidence of water having aocumulated it the fitting

04 rnm dlo hDln

Fig Apparatus for rainprooftest

On the completion of testing the contractor shall supply to the engineer

three copies of as buill plans and circuitdiagrams whicn shall clearly indicated any

modifications which have been made to the original design

4 Measurement

41 Unless a Bill of quantities is provided thjs item will not be measured and payment

shall be made one lumpsum basic

42 When a Bill Of Quantities is provided measurements shall made on the items detailed

In the Sill of quantities completed accepted and neesured in place The unit of

measurement for each item shall be the unit of measurement shown in the Bill of

Ouentitias

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19

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5 Payment

51 The lump sum payment for the street lighting installation shall be full compensation

for furnishing ell materials labour equipment tools supervisiorl testing and incidentals

neossary to complete the work inoluding any necessary backfill foundations restoration

of footwalk roadway curbing and appurtenances damaged or destroyed during

construction The payment shall also cover the cost of design where this Is called for

The ILlmp sum paymEmt shall be deemed to include full compensation for

all additional materials and work not shown on Ihe Drawings or specified which are

nesessary to complete the installation

62 The work measured as provided in 42 shall be paid at Ihe contraot unit price for eacl1

item such price and payment constituting flln compensation for aU materials labour

equipment tools and incidentals nseded to complete the work All materials Bnd work

necessaJY for satisfactory completion of the installation which are not specifically

mentioned in the Bilt of quantities shall be deemed to be included in the items shown

corw~ors 6 Information to be supplied by bidtfelS

61 catalogs at electrioal components lanterns ballast etc

62 Plans and circuit diagrams ground rod connection diagram

S3 Photometric data

631 Utilisation Curve

632 Isoc8ndala diagram bull

633 Horizon~81 isofootcandle diagram

634 Polar light distribution curvs

64 Cataisl of columns BraCKets Base Plates concrete foundations

20

7 Other details of steel columms not mentioned above should comply with British

Standard 1840 1960 The decision shall be made by the Department

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135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

bull 1OOOW 1043 Watt

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Page 16: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

11

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d) The lantern carriage shail support the designed number of lanterns

Vithiout significant sway or movement and shall be capable of supporting these lanterns

II cradle with two men for maintenance work The lantern carriage shall be protected

prevent damage to the painted surface of the columns rotation of the carriage during

6IgtIIIJ and lowering shall be prevented and correct location when raised shall be ensured

some positive means It sha be possible to remove the lantem carriage without

illwerirl1l the column

el The lantern carriage shall be raised and lowered by a self sustaining

capable of being operated either by hand or by a portable electrically operated tool

middotIt shall be possible to lock the winch in any position by a simple robust and easily

operated mechanism The worm gear shall have a ratio of at Ieast 201

f) The winch shall have removable handles and it shall be mounted within

the base compartment at a convenient Vcrking height The opening in ths column shall

be of sufficient size to allow proper operation and maintenance of the winch mechanism

A weatherprClOf lab1 shall be fixed in an obvious position wihtn the column base giving

a full list of allmiddot lubricating points on the winch and other mechanism and detail of

recommened lubricants Winches fixed inside the column shall bs provided with a

substantial cover to fully protect them failing dirt and dust

gl A sufficient number of turns of the hoisting cable shall be left on the

winch drum when the carriage is fully lowered to ensure that the cable anchorage on the

drum do~s not take the full load of the carriage at any time

hI the last 30 centimeters of travel to t~e fully raised position of the

carriage shall be by hand operation and for lhis purpose either a limit switch shall be

provided to cut off the power supply to the portable electric tool at the appropriate time

or else some form of indication shall be provided to indicate when the carriage is 30

centimeters from the fully raised position

12

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i The winch cable shall be of stranded stainless steel wires and shall have

sufficient capacity to carry safely the lantern carriage complete with lanterns and a cradle

with two men attached thereto Great oare shall be taken during installation to ensure

that the hoisting cables do not twist or kink and any set twist Of kink shall be sufficient

rflsson for the rejection of that cable

j) All parts of the raising and loWering mechanism which are inaccessible

after erectlon of the oolumns shall be adequately protected against moisture dirt and

corrosion Where neoessary pulleys shall be fitted with shields to prevent the winch

cable becoming displaced Pulleys for electrioal cables shaH be of sufficient dimameter

that the cablll will not be bent to a smaller radius then that permitted by loca relulations

or those of the British Institutiof of Electrical Engineers 14th Edition Where necessary

for continued tfOllbe free operation metal parts shall be of stainless steel or other

approved non-corrodible material

kl When pewsr tool operation is used a suitable power outlet shall be

providad and the operalor shall be adequately safeguarded against any electrical shocks

rhe power tool shall preferably be designed to work on a reduced voltagee end in this

OBse a suitable approved type of translormar shall be provided The power too shall be

designed so that continuOlls operation will cause no harmful effects on either the winch

Of the tool and in the event of power failure the winch shall be self locking Conversion

from power to hand operation and vice versa shall be quick and easy and shall not require

spacial tools Full imOfmallon on tha type of power tool proposed shall be given with the

lender

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25 Protection Against Corrosion

Unless otherwise spceified columns bracket arms and brackets shall be

protected against corrosiOil eithsr by painting or galvanizing as follows

261 Painting

sl Cou~ns and masts shall be treated internalty with hot asphalt under

high pressure so as to givB a complete arid unbroken asphaltic coVering or other approved

anti-corrosion treatment shalt be applied to give at least equally good protection Bas63

shall be similarly treated up to a level of 25 centimeters above ground ievel

b) Before delivery to the site columns masts steelltracKets and external

fitting shall have all external welds ground down ilnd all external surfaces cleaned by shot bull

blasting or other approved method to a whitsmetal finish free of all signs of rust

Immediately folJowil1g t~is treatment the items ahall be painted with two coats of tropical

red lead undercoat followed by two coats of aluminium paint or they shall be treated in a

similar and hot tass affective manner aoceptable to the Enginesr to present subsequent

oorrosion After Grection ali imperfections and damage shall be made good to the

Engineers satisfaction and the items shall be given a final coat of all aluminium paint

262 Galvanizingmiddot

a) Before delivery to the site columns masts steel brackets and extemal

fittings shall have all extemal welds ground down Poles and other ferous materials shall

be galvanized both inside and outside by hot dipped in accordance with ASTM A 625-76

Weight of zinc coating shall not be less han 550 gram per square meter

14

b) Base of columns both inside and outside shali be coated with bituminous paint

up 10 a level o 25 centimeters above the base plate

3 Construction Methods

31 Excavation and Reinstatement

Excavation for cable or conduit laying or for foundations and reinstatement

shall be Darned out in accordance with thaprovisions of Section 25 (Sub-Clause 2632)

of 1hampS6 specifioations Reinstatement shall be suoh that the surface is restored to at

east its original standard

32 Concrete Work

All necessary foundations and footings or other concrete work shall be

carried out in acoordance with Sections 61 (sub-Clause 5112) and 02 of these

specifications Unless otherwise specified on the Drawings or in the Speoial Provisions

ooncrete shall be olass 8 Foundations shail be placed in one operation except that the

top 5 oentimetars may be placed after the superimposed structure is In position The

el(posed portions of foundations shall be formed to present a neat and tidy appearance

and sloped to shed water aV)lay from the structure supported Where existing

obs1ructions prevent the construction 01 foundations as shown on the plans then an

effective alternative may be provided subject to the prior approval of the Engineer

amp Ministry of National Development Department of Highways Specification For Highway

Construction 1970 Bangkok Thailand

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33 Conduits fittings and boxes

Copduits fittings and boxes shall be providsd and installed in accordance

with the provisions of Section 511 of these Speoifications except that chemically stable

tough plastic conduits fittings and boxes aocording to samples previously approved by

the Engineer will be permitted providing thet they do not soften when exposed to high

ambient temperature

The contractor may use alarger size of conduit than that specified at no

extra charge if he wishes but in this case the entire run shall be of the same size No

reducing touplings will be permitted

When metal conduits ara used cuts shall be made square amp11d true and all

couplings shell Ie screwed up until the ends of the conduits are brought together in order

to proVide a good electrical contact throughout The threads on all ferrous metal oonduits

bullsh8l1 be painted with rusT preventing paint before couplings are made up Where themiddot

coating on ferrous metal conduit has been dam~ged In handHng such damaged places

shall be painted with rust prevanting paint before installation

All conduit ends shall be threaded and capped until wiring is started When

caps are removed the threaded ends shall be provided with approved conduit bushings

Conduits shall be laid to a depth of not less than 50 centimeters below

pEIVed footwalks and medians and not less the 75 centimeters below the roadway

surface The location of all conduits at curb lines shall be marked by means of a Y at

laaat 10 centimeters high incised in the face of the curb directly above the conduit

Conduit terminating in iii standards cabine1s or pedestals shaH extend at least 5

C9Iltimeters vertically above the bottom of the box Such conduit shall be sloped towards

the top of the box to facilitate pulling Conduit entering the bottom of the box shall enter

in the direction of the run

16

34 Pull boxes or Junction Boxes

Pull boxes shall be installed as shown on the plans and in any case at not

more than 00 meters intellals The contractormiddotmay install additional pull boxes without

extra charge jf he wishes Pull bo)(es shall be of reinforced concrete not less than 10

centimeters thick and may be of approved pre-cast deSign Reinforced concrete covers

acoured by two recessed brass bolts shaff be used on faatwalks the covers baing

inscribed Street Ughting on the outside Under the roadway covers shall be of steal or

oast iron inscribed as specified middotabove andlaid in II suitable concrete footing to withstand

trecffic loads Metal covers shall be effectivalr earthed to an earthing rod inside the box

Tops of puUboxes ~Ilan beeffectivoaly level with the slrfOunoing paved areas whether

footwslk or roadway but in unpaved areas the tOpl of pull boxes shall be buried 30

oentimeters below groul1d level The bottom of pull boxes shall be bedded in sand and

cement or crushed rock Permanent makers shall be provided and erected

toshow the position of all pull boxes

35 Tasting

A funotional test shari be made on completion of the work n order to

demonStrate thet every part of the equipment and installation fUllctionS as intended and

specJfled This test shall consist of not less ~a~ five nights continuous and satisfaatOlY

operation If any defects or unsatisfactory operation are revealed this condition shalf be

oorrected imd tne test continoued until the required five nights of satisfaotory opera~ion

have been performed

Prior to the functional test tlie contractor shaff carry out thefollowing

tests to the entire satisfaction of the Engineer

1) Each circuit shall be iested for oontinuity

2) Each circuit shall be tested for cething

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3) A m~gger test shall be made between eaoh cirouit and eart) The

Insulation fesistance shall be shown to be at least that specified within the relevant

codes

4) The distribution horizontal illumination valve of specified spacing in eaoh

code item in rale 6flux measured between two iuminair as avery two meters along

longitudinal and transverse road way line are essentially measured to show maxmean

min illuminati and uniformity ratios

Uniformity ratio minimum illumination average illumination

= not less than 126

and maximum illumination

minimum illumination

not more than 61

5) Rainproof Test

The lantern under test shall be mounted in its normal orientation on en

adjustable sUpPOrt as shown in fig 1 so that the fitting is near the center of the arc

desoribed by 1he oscillating tuba

After being switched on for one hour the lantern shllil be subjected to II

spray of water at a temperature not exceeding 200 C and ilt e pressure of approximately

67 Ibsin2 104 kgscm2i the tube being oscillated so as to describe an angle of SO

degrees from the vertical and in both directions from it This treatment shall be continLllld

for 20 nilnutes the fitting being switcher off after 10 minutes

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At tha end of this test there shall be to damage to the lamp or enclosure

and no visible evidence of water having aocumulated it the fitting

04 rnm dlo hDln

Fig Apparatus for rainprooftest

On the completion of testing the contractor shall supply to the engineer

three copies of as buill plans and circuitdiagrams whicn shall clearly indicated any

modifications which have been made to the original design

4 Measurement

41 Unless a Bill of quantities is provided thjs item will not be measured and payment

shall be made one lumpsum basic

42 When a Bill Of Quantities is provided measurements shall made on the items detailed

In the Sill of quantities completed accepted and neesured in place The unit of

measurement for each item shall be the unit of measurement shown in the Bill of

Ouentitias

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5 Payment

51 The lump sum payment for the street lighting installation shall be full compensation

for furnishing ell materials labour equipment tools supervisiorl testing and incidentals

neossary to complete the work inoluding any necessary backfill foundations restoration

of footwalk roadway curbing and appurtenances damaged or destroyed during

construction The payment shall also cover the cost of design where this Is called for

The ILlmp sum paymEmt shall be deemed to include full compensation for

all additional materials and work not shown on Ihe Drawings or specified which are

nesessary to complete the installation

62 The work measured as provided in 42 shall be paid at Ihe contraot unit price for eacl1

item such price and payment constituting flln compensation for aU materials labour

equipment tools and incidentals nseded to complete the work All materials Bnd work

necessaJY for satisfactory completion of the installation which are not specifically

mentioned in the Bilt of quantities shall be deemed to be included in the items shown

corw~ors 6 Information to be supplied by bidtfelS

61 catalogs at electrioal components lanterns ballast etc

62 Plans and circuit diagrams ground rod connection diagram

S3 Photometric data

631 Utilisation Curve

632 Isoc8ndala diagram bull

633 Horizon~81 isofootcandle diagram

634 Polar light distribution curvs

64 Cataisl of columns BraCKets Base Plates concrete foundations

20

7 Other details of steel columms not mentioned above should comply with British

Standard 1840 1960 The decision shall be made by the Department

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Page 17: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

12

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i The winch cable shall be of stranded stainless steel wires and shall have

sufficient capacity to carry safely the lantern carriage complete with lanterns and a cradle

with two men attached thereto Great oare shall be taken during installation to ensure

that the hoisting cables do not twist or kink and any set twist Of kink shall be sufficient

rflsson for the rejection of that cable

j) All parts of the raising and loWering mechanism which are inaccessible

after erectlon of the oolumns shall be adequately protected against moisture dirt and

corrosion Where neoessary pulleys shall be fitted with shields to prevent the winch

cable becoming displaced Pulleys for electrioal cables shaH be of sufficient dimameter

that the cablll will not be bent to a smaller radius then that permitted by loca relulations

or those of the British Institutiof of Electrical Engineers 14th Edition Where necessary

for continued tfOllbe free operation metal parts shall be of stainless steel or other

approved non-corrodible material

kl When pewsr tool operation is used a suitable power outlet shall be

providad and the operalor shall be adequately safeguarded against any electrical shocks

rhe power tool shall preferably be designed to work on a reduced voltagee end in this

OBse a suitable approved type of translormar shall be provided The power too shall be

designed so that continuOlls operation will cause no harmful effects on either the winch

Of the tool and in the event of power failure the winch shall be self locking Conversion

from power to hand operation and vice versa shall be quick and easy and shall not require

spacial tools Full imOfmallon on tha type of power tool proposed shall be given with the

lender

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25 Protection Against Corrosion

Unless otherwise spceified columns bracket arms and brackets shall be

protected against corrosiOil eithsr by painting or galvanizing as follows

261 Painting

sl Cou~ns and masts shall be treated internalty with hot asphalt under

high pressure so as to givB a complete arid unbroken asphaltic coVering or other approved

anti-corrosion treatment shalt be applied to give at least equally good protection Bas63

shall be similarly treated up to a level of 25 centimeters above ground ievel

b) Before delivery to the site columns masts steelltracKets and external

fitting shall have all external welds ground down ilnd all external surfaces cleaned by shot bull

blasting or other approved method to a whitsmetal finish free of all signs of rust

Immediately folJowil1g t~is treatment the items ahall be painted with two coats of tropical

red lead undercoat followed by two coats of aluminium paint or they shall be treated in a

similar and hot tass affective manner aoceptable to the Enginesr to present subsequent

oorrosion After Grection ali imperfections and damage shall be made good to the

Engineers satisfaction and the items shall be given a final coat of all aluminium paint

262 Galvanizingmiddot

a) Before delivery to the site columns masts steel brackets and extemal

fittings shall have all extemal welds ground down Poles and other ferous materials shall

be galvanized both inside and outside by hot dipped in accordance with ASTM A 625-76

Weight of zinc coating shall not be less han 550 gram per square meter

14

b) Base of columns both inside and outside shali be coated with bituminous paint

up 10 a level o 25 centimeters above the base plate

3 Construction Methods

31 Excavation and Reinstatement

Excavation for cable or conduit laying or for foundations and reinstatement

shall be Darned out in accordance with thaprovisions of Section 25 (Sub-Clause 2632)

of 1hampS6 specifioations Reinstatement shall be suoh that the surface is restored to at

east its original standard

32 Concrete Work

All necessary foundations and footings or other concrete work shall be

carried out in acoordance with Sections 61 (sub-Clause 5112) and 02 of these

specifications Unless otherwise specified on the Drawings or in the Speoial Provisions

ooncrete shall be olass 8 Foundations shail be placed in one operation except that the

top 5 oentimetars may be placed after the superimposed structure is In position The

el(posed portions of foundations shall be formed to present a neat and tidy appearance

and sloped to shed water aV)lay from the structure supported Where existing

obs1ructions prevent the construction 01 foundations as shown on the plans then an

effective alternative may be provided subject to the prior approval of the Engineer

amp Ministry of National Development Department of Highways Specification For Highway

Construction 1970 Bangkok Thailand

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33 Conduits fittings and boxes

Copduits fittings and boxes shall be providsd and installed in accordance

with the provisions of Section 511 of these Speoifications except that chemically stable

tough plastic conduits fittings and boxes aocording to samples previously approved by

the Engineer will be permitted providing thet they do not soften when exposed to high

ambient temperature

The contractor may use alarger size of conduit than that specified at no

extra charge if he wishes but in this case the entire run shall be of the same size No

reducing touplings will be permitted

When metal conduits ara used cuts shall be made square amp11d true and all

couplings shell Ie screwed up until the ends of the conduits are brought together in order

to proVide a good electrical contact throughout The threads on all ferrous metal oonduits

bullsh8l1 be painted with rusT preventing paint before couplings are made up Where themiddot

coating on ferrous metal conduit has been dam~ged In handHng such damaged places

shall be painted with rust prevanting paint before installation

All conduit ends shall be threaded and capped until wiring is started When

caps are removed the threaded ends shall be provided with approved conduit bushings

Conduits shall be laid to a depth of not less than 50 centimeters below

pEIVed footwalks and medians and not less the 75 centimeters below the roadway

surface The location of all conduits at curb lines shall be marked by means of a Y at

laaat 10 centimeters high incised in the face of the curb directly above the conduit

Conduit terminating in iii standards cabine1s or pedestals shaH extend at least 5

C9Iltimeters vertically above the bottom of the box Such conduit shall be sloped towards

the top of the box to facilitate pulling Conduit entering the bottom of the box shall enter

in the direction of the run

16

34 Pull boxes or Junction Boxes

Pull boxes shall be installed as shown on the plans and in any case at not

more than 00 meters intellals The contractormiddotmay install additional pull boxes without

extra charge jf he wishes Pull bo)(es shall be of reinforced concrete not less than 10

centimeters thick and may be of approved pre-cast deSign Reinforced concrete covers

acoured by two recessed brass bolts shaff be used on faatwalks the covers baing

inscribed Street Ughting on the outside Under the roadway covers shall be of steal or

oast iron inscribed as specified middotabove andlaid in II suitable concrete footing to withstand

trecffic loads Metal covers shall be effectivalr earthed to an earthing rod inside the box

Tops of puUboxes ~Ilan beeffectivoaly level with the slrfOunoing paved areas whether

footwslk or roadway but in unpaved areas the tOpl of pull boxes shall be buried 30

oentimeters below groul1d level The bottom of pull boxes shall be bedded in sand and

cement or crushed rock Permanent makers shall be provided and erected

toshow the position of all pull boxes

35 Tasting

A funotional test shari be made on completion of the work n order to

demonStrate thet every part of the equipment and installation fUllctionS as intended and

specJfled This test shall consist of not less ~a~ five nights continuous and satisfaatOlY

operation If any defects or unsatisfactory operation are revealed this condition shalf be

oorrected imd tne test continoued until the required five nights of satisfaotory opera~ion

have been performed

Prior to the functional test tlie contractor shaff carry out thefollowing

tests to the entire satisfaction of the Engineer

1) Each circuit shall be iested for oontinuity

2) Each circuit shall be tested for cething

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3) A m~gger test shall be made between eaoh cirouit and eart) The

Insulation fesistance shall be shown to be at least that specified within the relevant

codes

4) The distribution horizontal illumination valve of specified spacing in eaoh

code item in rale 6flux measured between two iuminair as avery two meters along

longitudinal and transverse road way line are essentially measured to show maxmean

min illuminati and uniformity ratios

Uniformity ratio minimum illumination average illumination

= not less than 126

and maximum illumination

minimum illumination

not more than 61

5) Rainproof Test

The lantern under test shall be mounted in its normal orientation on en

adjustable sUpPOrt as shown in fig 1 so that the fitting is near the center of the arc

desoribed by 1he oscillating tuba

After being switched on for one hour the lantern shllil be subjected to II

spray of water at a temperature not exceeding 200 C and ilt e pressure of approximately

67 Ibsin2 104 kgscm2i the tube being oscillated so as to describe an angle of SO

degrees from the vertical and in both directions from it This treatment shall be continLllld

for 20 nilnutes the fitting being switcher off after 10 minutes

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At tha end of this test there shall be to damage to the lamp or enclosure

and no visible evidence of water having aocumulated it the fitting

04 rnm dlo hDln

Fig Apparatus for rainprooftest

On the completion of testing the contractor shall supply to the engineer

three copies of as buill plans and circuitdiagrams whicn shall clearly indicated any

modifications which have been made to the original design

4 Measurement

41 Unless a Bill of quantities is provided thjs item will not be measured and payment

shall be made one lumpsum basic

42 When a Bill Of Quantities is provided measurements shall made on the items detailed

In the Sill of quantities completed accepted and neesured in place The unit of

measurement for each item shall be the unit of measurement shown in the Bill of

Ouentitias

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5 Payment

51 The lump sum payment for the street lighting installation shall be full compensation

for furnishing ell materials labour equipment tools supervisiorl testing and incidentals

neossary to complete the work inoluding any necessary backfill foundations restoration

of footwalk roadway curbing and appurtenances damaged or destroyed during

construction The payment shall also cover the cost of design where this Is called for

The ILlmp sum paymEmt shall be deemed to include full compensation for

all additional materials and work not shown on Ihe Drawings or specified which are

nesessary to complete the installation

62 The work measured as provided in 42 shall be paid at Ihe contraot unit price for eacl1

item such price and payment constituting flln compensation for aU materials labour

equipment tools and incidentals nseded to complete the work All materials Bnd work

necessaJY for satisfactory completion of the installation which are not specifically

mentioned in the Bilt of quantities shall be deemed to be included in the items shown

corw~ors 6 Information to be supplied by bidtfelS

61 catalogs at electrioal components lanterns ballast etc

62 Plans and circuit diagrams ground rod connection diagram

S3 Photometric data

631 Utilisation Curve

632 Isoc8ndala diagram bull

633 Horizon~81 isofootcandle diagram

634 Polar light distribution curvs

64 Cataisl of columns BraCKets Base Plates concrete foundations

20

7 Other details of steel columms not mentioned above should comply with British

Standard 1840 1960 The decision shall be made by the Department

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14 n1~1Jal11il1nlIl~l~WIll~~Pl1tl~-rV ~~ MAl N INCOMING SWITCH Uflt

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tvh~iuIAflljUUtJ C 1oIi1lllU1l UNDERGROUND CABLE NY( 1~lIil~ ~W

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1~1l2Jl~ 150 WIIll Uflfl~~t1I11t1ilf1nfJ~ltf SERVICE ENTRANCE CAP -~- ______-- _-_ -- ~ - _ ~tl3Jflhl

15 f1l1L~U~1al1n SWITCH BOARD bJul LOAD 11ni11~~hJi~l~1ffl1tJ

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16 m~tJfl1t1111t1tlL~l1ftJhJ t1~91Ht~IJJitH1itl1fJlIibr STREET LIGHTbull

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17 lfIl4ill3J1lIiriilI)~JIl~il CARTfliDGE FUSE lltl4rluintfiPil~I1~t1

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23

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ih fjJ1lWUIlJn11 B ~1i1

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GROUND ROD CLAMP 1111~Ilt1mru~1flnm1 tj~il1JPiutlflm~lN1 J 1t~ ~ 4~t ~

194 n111J1 ~IJ11t1JMill1111 ~I~lEH ~~~Pl fl JJ Ilfl~11111 III IIJ~1lYI 1ZflIhllJ~

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bull ~~UtitlJI1 IYlllt~tlfll1~rJIl~lifltJ1nnlQntlnn~

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fIHlbrmW~1 nrl1 05 MEGoHM

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iiIl10~1U11jLii 25 OHM

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30middot 60 loitlelUJlIl1 llilpoundlltiltffregmiddotwiltluf11t1fl1atoyenU1tJ1N 160 UJ911 rilLInll

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26

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fl~m11il1~tor BOLT AND NUT yfiJ)IltW)1Jnjflfll2lhfufI~I1IJ~n

tg)tJM~ua tIllwfflz4J1liha)h~ flUWlnunltj1 50 L4u~ rtI Pl1

29 lIlllM91lht~lJlJmtriflfllJIN~umiddothllilu1t1~1lJ11~flLliltJ~r1l171uffj 19191192193 194l11 196

210 VOLTAGE DROP ~11u1tlIll1lJ1lJilI~ltIl~1~lnuftl 110

211 011JI1ln1ll~I~1ill4Jil1Juuulw~rl1UtllflUMlflLI11P1lllilf111l11uoffEJ

111 t~nulvHh1JPrnfll~lrt1tnillJnlfMllltllJ~)l

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11211211122 Ul 1123

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tt~l~fi1MfteINihfJUflmlaquoutl1-lvh-l 1 iJ~lLLUh~d

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31 MAIN INCOMNG SWiTCH BOARD li-YLUWttJ~ll1r1JIlIL~Eli1l~1lJ1U~~ 11 r-

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34 n11LMU~lallnj1)Ill(Il1lPllLIl1lJVl1 01 MAININCOMING SWITCH ttlZ

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P113-11UlflLJ tl6iYl1tJ tUlJ1l 24

36 n11i~USlfl9ln MAiN INCOMiNG SWITCH BOARD 1tltT~ LOAD 1A1nerlilf

~UllaquoliluhJumn1pound1Ii1aj1)~-llmW1ill 15bull

36 n11L~Uf11JlmJhlt~1tll~~~ LUWtflgt11~lil1J1tl111w11a111ilrt~ 1~tMlu ~il 16

)-llriillllllfl+JLlrm PHASE JJMn1In91LtllflJ~11i1iili CARTRIDGE

FUSE ilfl~nU n1ffil~~JU

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192 193 194 LIS 195

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311 nilJm~Vlfll-l~tir1l ~)jtltJllUU1W~IJ 1Jlnm1 ~~11l1ilmriruullYlriEl

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11211122 LUI 1123

28

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I 170 ~268120

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29

bull Na 86W 108 Watt

135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

bull 1OOOW 1043 Watt

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Page 18: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

c I J J middot1 I

j

c

13

bull

25 Protection Against Corrosion

Unless otherwise spceified columns bracket arms and brackets shall be

protected against corrosiOil eithsr by painting or galvanizing as follows

261 Painting

sl Cou~ns and masts shall be treated internalty with hot asphalt under

high pressure so as to givB a complete arid unbroken asphaltic coVering or other approved

anti-corrosion treatment shalt be applied to give at least equally good protection Bas63

shall be similarly treated up to a level of 25 centimeters above ground ievel

b) Before delivery to the site columns masts steelltracKets and external

fitting shall have all external welds ground down ilnd all external surfaces cleaned by shot bull

blasting or other approved method to a whitsmetal finish free of all signs of rust

Immediately folJowil1g t~is treatment the items ahall be painted with two coats of tropical

red lead undercoat followed by two coats of aluminium paint or they shall be treated in a

similar and hot tass affective manner aoceptable to the Enginesr to present subsequent

oorrosion After Grection ali imperfections and damage shall be made good to the

Engineers satisfaction and the items shall be given a final coat of all aluminium paint

262 Galvanizingmiddot

a) Before delivery to the site columns masts steel brackets and extemal

fittings shall have all extemal welds ground down Poles and other ferous materials shall

be galvanized both inside and outside by hot dipped in accordance with ASTM A 625-76

Weight of zinc coating shall not be less han 550 gram per square meter

14

b) Base of columns both inside and outside shali be coated with bituminous paint

up 10 a level o 25 centimeters above the base plate

3 Construction Methods

31 Excavation and Reinstatement

Excavation for cable or conduit laying or for foundations and reinstatement

shall be Darned out in accordance with thaprovisions of Section 25 (Sub-Clause 2632)

of 1hampS6 specifioations Reinstatement shall be suoh that the surface is restored to at

east its original standard

32 Concrete Work

All necessary foundations and footings or other concrete work shall be

carried out in acoordance with Sections 61 (sub-Clause 5112) and 02 of these

specifications Unless otherwise specified on the Drawings or in the Speoial Provisions

ooncrete shall be olass 8 Foundations shail be placed in one operation except that the

top 5 oentimetars may be placed after the superimposed structure is In position The

el(posed portions of foundations shall be formed to present a neat and tidy appearance

and sloped to shed water aV)lay from the structure supported Where existing

obs1ructions prevent the construction 01 foundations as shown on the plans then an

effective alternative may be provided subject to the prior approval of the Engineer

amp Ministry of National Development Department of Highways Specification For Highway

Construction 1970 Bangkok Thailand

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15

33 Conduits fittings and boxes

Copduits fittings and boxes shall be providsd and installed in accordance

with the provisions of Section 511 of these Speoifications except that chemically stable

tough plastic conduits fittings and boxes aocording to samples previously approved by

the Engineer will be permitted providing thet they do not soften when exposed to high

ambient temperature

The contractor may use alarger size of conduit than that specified at no

extra charge if he wishes but in this case the entire run shall be of the same size No

reducing touplings will be permitted

When metal conduits ara used cuts shall be made square amp11d true and all

couplings shell Ie screwed up until the ends of the conduits are brought together in order

to proVide a good electrical contact throughout The threads on all ferrous metal oonduits

bullsh8l1 be painted with rusT preventing paint before couplings are made up Where themiddot

coating on ferrous metal conduit has been dam~ged In handHng such damaged places

shall be painted with rust prevanting paint before installation

All conduit ends shall be threaded and capped until wiring is started When

caps are removed the threaded ends shall be provided with approved conduit bushings

Conduits shall be laid to a depth of not less than 50 centimeters below

pEIVed footwalks and medians and not less the 75 centimeters below the roadway

surface The location of all conduits at curb lines shall be marked by means of a Y at

laaat 10 centimeters high incised in the face of the curb directly above the conduit

Conduit terminating in iii standards cabine1s or pedestals shaH extend at least 5

C9Iltimeters vertically above the bottom of the box Such conduit shall be sloped towards

the top of the box to facilitate pulling Conduit entering the bottom of the box shall enter

in the direction of the run

16

34 Pull boxes or Junction Boxes

Pull boxes shall be installed as shown on the plans and in any case at not

more than 00 meters intellals The contractormiddotmay install additional pull boxes without

extra charge jf he wishes Pull bo)(es shall be of reinforced concrete not less than 10

centimeters thick and may be of approved pre-cast deSign Reinforced concrete covers

acoured by two recessed brass bolts shaff be used on faatwalks the covers baing

inscribed Street Ughting on the outside Under the roadway covers shall be of steal or

oast iron inscribed as specified middotabove andlaid in II suitable concrete footing to withstand

trecffic loads Metal covers shall be effectivalr earthed to an earthing rod inside the box

Tops of puUboxes ~Ilan beeffectivoaly level with the slrfOunoing paved areas whether

footwslk or roadway but in unpaved areas the tOpl of pull boxes shall be buried 30

oentimeters below groul1d level The bottom of pull boxes shall be bedded in sand and

cement or crushed rock Permanent makers shall be provided and erected

toshow the position of all pull boxes

35 Tasting

A funotional test shari be made on completion of the work n order to

demonStrate thet every part of the equipment and installation fUllctionS as intended and

specJfled This test shall consist of not less ~a~ five nights continuous and satisfaatOlY

operation If any defects or unsatisfactory operation are revealed this condition shalf be

oorrected imd tne test continoued until the required five nights of satisfaotory opera~ion

have been performed

Prior to the functional test tlie contractor shaff carry out thefollowing

tests to the entire satisfaction of the Engineer

1) Each circuit shall be iested for oontinuity

2) Each circuit shall be tested for cething

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17

1

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3) A m~gger test shall be made between eaoh cirouit and eart) The

Insulation fesistance shall be shown to be at least that specified within the relevant

codes

4) The distribution horizontal illumination valve of specified spacing in eaoh

code item in rale 6flux measured between two iuminair as avery two meters along

longitudinal and transverse road way line are essentially measured to show maxmean

min illuminati and uniformity ratios

Uniformity ratio minimum illumination average illumination

= not less than 126

and maximum illumination

minimum illumination

not more than 61

5) Rainproof Test

The lantern under test shall be mounted in its normal orientation on en

adjustable sUpPOrt as shown in fig 1 so that the fitting is near the center of the arc

desoribed by 1he oscillating tuba

After being switched on for one hour the lantern shllil be subjected to II

spray of water at a temperature not exceeding 200 C and ilt e pressure of approximately

67 Ibsin2 104 kgscm2i the tube being oscillated so as to describe an angle of SO

degrees from the vertical and in both directions from it This treatment shall be continLllld

for 20 nilnutes the fitting being switcher off after 10 minutes

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18

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At tha end of this test there shall be to damage to the lamp or enclosure

and no visible evidence of water having aocumulated it the fitting

04 rnm dlo hDln

Fig Apparatus for rainprooftest

On the completion of testing the contractor shall supply to the engineer

three copies of as buill plans and circuitdiagrams whicn shall clearly indicated any

modifications which have been made to the original design

4 Measurement

41 Unless a Bill of quantities is provided thjs item will not be measured and payment

shall be made one lumpsum basic

42 When a Bill Of Quantities is provided measurements shall made on the items detailed

In the Sill of quantities completed accepted and neesured in place The unit of

measurement for each item shall be the unit of measurement shown in the Bill of

Ouentitias

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19

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5 Payment

51 The lump sum payment for the street lighting installation shall be full compensation

for furnishing ell materials labour equipment tools supervisiorl testing and incidentals

neossary to complete the work inoluding any necessary backfill foundations restoration

of footwalk roadway curbing and appurtenances damaged or destroyed during

construction The payment shall also cover the cost of design where this Is called for

The ILlmp sum paymEmt shall be deemed to include full compensation for

all additional materials and work not shown on Ihe Drawings or specified which are

nesessary to complete the installation

62 The work measured as provided in 42 shall be paid at Ihe contraot unit price for eacl1

item such price and payment constituting flln compensation for aU materials labour

equipment tools and incidentals nseded to complete the work All materials Bnd work

necessaJY for satisfactory completion of the installation which are not specifically

mentioned in the Bilt of quantities shall be deemed to be included in the items shown

corw~ors 6 Information to be supplied by bidtfelS

61 catalogs at electrioal components lanterns ballast etc

62 Plans and circuit diagrams ground rod connection diagram

S3 Photometric data

631 Utilisation Curve

632 Isoc8ndala diagram bull

633 Horizon~81 isofootcandle diagram

634 Polar light distribution curvs

64 Cataisl of columns BraCKets Base Plates concrete foundations

20

7 Other details of steel columms not mentioned above should comply with British

Standard 1840 1960 The decision shall be made by the Department

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135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

bull 1OOOW 1043 Watt

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Page 19: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

14

b) Base of columns both inside and outside shali be coated with bituminous paint

up 10 a level o 25 centimeters above the base plate

3 Construction Methods

31 Excavation and Reinstatement

Excavation for cable or conduit laying or for foundations and reinstatement

shall be Darned out in accordance with thaprovisions of Section 25 (Sub-Clause 2632)

of 1hampS6 specifioations Reinstatement shall be suoh that the surface is restored to at

east its original standard

32 Concrete Work

All necessary foundations and footings or other concrete work shall be

carried out in acoordance with Sections 61 (sub-Clause 5112) and 02 of these

specifications Unless otherwise specified on the Drawings or in the Speoial Provisions

ooncrete shall be olass 8 Foundations shail be placed in one operation except that the

top 5 oentimetars may be placed after the superimposed structure is In position The

el(posed portions of foundations shall be formed to present a neat and tidy appearance

and sloped to shed water aV)lay from the structure supported Where existing

obs1ructions prevent the construction 01 foundations as shown on the plans then an

effective alternative may be provided subject to the prior approval of the Engineer

amp Ministry of National Development Department of Highways Specification For Highway

Construction 1970 Bangkok Thailand

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15

33 Conduits fittings and boxes

Copduits fittings and boxes shall be providsd and installed in accordance

with the provisions of Section 511 of these Speoifications except that chemically stable

tough plastic conduits fittings and boxes aocording to samples previously approved by

the Engineer will be permitted providing thet they do not soften when exposed to high

ambient temperature

The contractor may use alarger size of conduit than that specified at no

extra charge if he wishes but in this case the entire run shall be of the same size No

reducing touplings will be permitted

When metal conduits ara used cuts shall be made square amp11d true and all

couplings shell Ie screwed up until the ends of the conduits are brought together in order

to proVide a good electrical contact throughout The threads on all ferrous metal oonduits

bullsh8l1 be painted with rusT preventing paint before couplings are made up Where themiddot

coating on ferrous metal conduit has been dam~ged In handHng such damaged places

shall be painted with rust prevanting paint before installation

All conduit ends shall be threaded and capped until wiring is started When

caps are removed the threaded ends shall be provided with approved conduit bushings

Conduits shall be laid to a depth of not less than 50 centimeters below

pEIVed footwalks and medians and not less the 75 centimeters below the roadway

surface The location of all conduits at curb lines shall be marked by means of a Y at

laaat 10 centimeters high incised in the face of the curb directly above the conduit

Conduit terminating in iii standards cabine1s or pedestals shaH extend at least 5

C9Iltimeters vertically above the bottom of the box Such conduit shall be sloped towards

the top of the box to facilitate pulling Conduit entering the bottom of the box shall enter

in the direction of the run

16

34 Pull boxes or Junction Boxes

Pull boxes shall be installed as shown on the plans and in any case at not

more than 00 meters intellals The contractormiddotmay install additional pull boxes without

extra charge jf he wishes Pull bo)(es shall be of reinforced concrete not less than 10

centimeters thick and may be of approved pre-cast deSign Reinforced concrete covers

acoured by two recessed brass bolts shaff be used on faatwalks the covers baing

inscribed Street Ughting on the outside Under the roadway covers shall be of steal or

oast iron inscribed as specified middotabove andlaid in II suitable concrete footing to withstand

trecffic loads Metal covers shall be effectivalr earthed to an earthing rod inside the box

Tops of puUboxes ~Ilan beeffectivoaly level with the slrfOunoing paved areas whether

footwslk or roadway but in unpaved areas the tOpl of pull boxes shall be buried 30

oentimeters below groul1d level The bottom of pull boxes shall be bedded in sand and

cement or crushed rock Permanent makers shall be provided and erected

toshow the position of all pull boxes

35 Tasting

A funotional test shari be made on completion of the work n order to

demonStrate thet every part of the equipment and installation fUllctionS as intended and

specJfled This test shall consist of not less ~a~ five nights continuous and satisfaatOlY

operation If any defects or unsatisfactory operation are revealed this condition shalf be

oorrected imd tne test continoued until the required five nights of satisfaotory opera~ion

have been performed

Prior to the functional test tlie contractor shaff carry out thefollowing

tests to the entire satisfaction of the Engineer

1) Each circuit shall be iested for oontinuity

2) Each circuit shall be tested for cething

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17

1

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3) A m~gger test shall be made between eaoh cirouit and eart) The

Insulation fesistance shall be shown to be at least that specified within the relevant

codes

4) The distribution horizontal illumination valve of specified spacing in eaoh

code item in rale 6flux measured between two iuminair as avery two meters along

longitudinal and transverse road way line are essentially measured to show maxmean

min illuminati and uniformity ratios

Uniformity ratio minimum illumination average illumination

= not less than 126

and maximum illumination

minimum illumination

not more than 61

5) Rainproof Test

The lantern under test shall be mounted in its normal orientation on en

adjustable sUpPOrt as shown in fig 1 so that the fitting is near the center of the arc

desoribed by 1he oscillating tuba

After being switched on for one hour the lantern shllil be subjected to II

spray of water at a temperature not exceeding 200 C and ilt e pressure of approximately

67 Ibsin2 104 kgscm2i the tube being oscillated so as to describe an angle of SO

degrees from the vertical and in both directions from it This treatment shall be continLllld

for 20 nilnutes the fitting being switcher off after 10 minutes

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18

i

At tha end of this test there shall be to damage to the lamp or enclosure

and no visible evidence of water having aocumulated it the fitting

04 rnm dlo hDln

Fig Apparatus for rainprooftest

On the completion of testing the contractor shall supply to the engineer

three copies of as buill plans and circuitdiagrams whicn shall clearly indicated any

modifications which have been made to the original design

4 Measurement

41 Unless a Bill of quantities is provided thjs item will not be measured and payment

shall be made one lumpsum basic

42 When a Bill Of Quantities is provided measurements shall made on the items detailed

In the Sill of quantities completed accepted and neesured in place The unit of

measurement for each item shall be the unit of measurement shown in the Bill of

Ouentitias

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19

bull

5 Payment

51 The lump sum payment for the street lighting installation shall be full compensation

for furnishing ell materials labour equipment tools supervisiorl testing and incidentals

neossary to complete the work inoluding any necessary backfill foundations restoration

of footwalk roadway curbing and appurtenances damaged or destroyed during

construction The payment shall also cover the cost of design where this Is called for

The ILlmp sum paymEmt shall be deemed to include full compensation for

all additional materials and work not shown on Ihe Drawings or specified which are

nesessary to complete the installation

62 The work measured as provided in 42 shall be paid at Ihe contraot unit price for eacl1

item such price and payment constituting flln compensation for aU materials labour

equipment tools and incidentals nseded to complete the work All materials Bnd work

necessaJY for satisfactory completion of the installation which are not specifically

mentioned in the Bilt of quantities shall be deemed to be included in the items shown

corw~ors 6 Information to be supplied by bidtfelS

61 catalogs at electrioal components lanterns ballast etc

62 Plans and circuit diagrams ground rod connection diagram

S3 Photometric data

631 Utilisation Curve

632 Isoc8ndala diagram bull

633 Horizon~81 isofootcandle diagram

634 Polar light distribution curvs

64 Cataisl of columns BraCKets Base Plates concrete foundations

20

7 Other details of steel columms not mentioned above should comply with British

Standard 1840 1960 The decision shall be made by the Department

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26

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211 011JI1ln1ll~I~1ill4Jil1Juuulw~rl1UtllflUMlflLI11P1lllilf111l11uoffEJ

111 t~nulvHh1JPrnfll~lrt1tnillJnlfMllltllJ~)l

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tt~l~fi1MfteINihfJUflmlaquoutl1-lvh-l 1 iJ~lLLUh~d

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36 n11L~Uf11JlmJhlt~1tll~~~ LUWtflgt11~lil1J1tl111w11a111ilrt~ 1~tMlu ~il 16

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11211122 LUI 1123

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bull Na 86W 108 Watt

135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

bull 1OOOW 1043 Watt

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Page 20: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

15

33 Conduits fittings and boxes

Copduits fittings and boxes shall be providsd and installed in accordance

with the provisions of Section 511 of these Speoifications except that chemically stable

tough plastic conduits fittings and boxes aocording to samples previously approved by

the Engineer will be permitted providing thet they do not soften when exposed to high

ambient temperature

The contractor may use alarger size of conduit than that specified at no

extra charge if he wishes but in this case the entire run shall be of the same size No

reducing touplings will be permitted

When metal conduits ara used cuts shall be made square amp11d true and all

couplings shell Ie screwed up until the ends of the conduits are brought together in order

to proVide a good electrical contact throughout The threads on all ferrous metal oonduits

bullsh8l1 be painted with rusT preventing paint before couplings are made up Where themiddot

coating on ferrous metal conduit has been dam~ged In handHng such damaged places

shall be painted with rust prevanting paint before installation

All conduit ends shall be threaded and capped until wiring is started When

caps are removed the threaded ends shall be provided with approved conduit bushings

Conduits shall be laid to a depth of not less than 50 centimeters below

pEIVed footwalks and medians and not less the 75 centimeters below the roadway

surface The location of all conduits at curb lines shall be marked by means of a Y at

laaat 10 centimeters high incised in the face of the curb directly above the conduit

Conduit terminating in iii standards cabine1s or pedestals shaH extend at least 5

C9Iltimeters vertically above the bottom of the box Such conduit shall be sloped towards

the top of the box to facilitate pulling Conduit entering the bottom of the box shall enter

in the direction of the run

16

34 Pull boxes or Junction Boxes

Pull boxes shall be installed as shown on the plans and in any case at not

more than 00 meters intellals The contractormiddotmay install additional pull boxes without

extra charge jf he wishes Pull bo)(es shall be of reinforced concrete not less than 10

centimeters thick and may be of approved pre-cast deSign Reinforced concrete covers

acoured by two recessed brass bolts shaff be used on faatwalks the covers baing

inscribed Street Ughting on the outside Under the roadway covers shall be of steal or

oast iron inscribed as specified middotabove andlaid in II suitable concrete footing to withstand

trecffic loads Metal covers shall be effectivalr earthed to an earthing rod inside the box

Tops of puUboxes ~Ilan beeffectivoaly level with the slrfOunoing paved areas whether

footwslk or roadway but in unpaved areas the tOpl of pull boxes shall be buried 30

oentimeters below groul1d level The bottom of pull boxes shall be bedded in sand and

cement or crushed rock Permanent makers shall be provided and erected

toshow the position of all pull boxes

35 Tasting

A funotional test shari be made on completion of the work n order to

demonStrate thet every part of the equipment and installation fUllctionS as intended and

specJfled This test shall consist of not less ~a~ five nights continuous and satisfaatOlY

operation If any defects or unsatisfactory operation are revealed this condition shalf be

oorrected imd tne test continoued until the required five nights of satisfaotory opera~ion

have been performed

Prior to the functional test tlie contractor shaff carry out thefollowing

tests to the entire satisfaction of the Engineer

1) Each circuit shall be iested for oontinuity

2) Each circuit shall be tested for cething

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17

1

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3) A m~gger test shall be made between eaoh cirouit and eart) The

Insulation fesistance shall be shown to be at least that specified within the relevant

codes

4) The distribution horizontal illumination valve of specified spacing in eaoh

code item in rale 6flux measured between two iuminair as avery two meters along

longitudinal and transverse road way line are essentially measured to show maxmean

min illuminati and uniformity ratios

Uniformity ratio minimum illumination average illumination

= not less than 126

and maximum illumination

minimum illumination

not more than 61

5) Rainproof Test

The lantern under test shall be mounted in its normal orientation on en

adjustable sUpPOrt as shown in fig 1 so that the fitting is near the center of the arc

desoribed by 1he oscillating tuba

After being switched on for one hour the lantern shllil be subjected to II

spray of water at a temperature not exceeding 200 C and ilt e pressure of approximately

67 Ibsin2 104 kgscm2i the tube being oscillated so as to describe an angle of SO

degrees from the vertical and in both directions from it This treatment shall be continLllld

for 20 nilnutes the fitting being switcher off after 10 minutes

- shy

18

i

At tha end of this test there shall be to damage to the lamp or enclosure

and no visible evidence of water having aocumulated it the fitting

04 rnm dlo hDln

Fig Apparatus for rainprooftest

On the completion of testing the contractor shall supply to the engineer

three copies of as buill plans and circuitdiagrams whicn shall clearly indicated any

modifications which have been made to the original design

4 Measurement

41 Unless a Bill of quantities is provided thjs item will not be measured and payment

shall be made one lumpsum basic

42 When a Bill Of Quantities is provided measurements shall made on the items detailed

In the Sill of quantities completed accepted and neesured in place The unit of

measurement for each item shall be the unit of measurement shown in the Bill of

Ouentitias

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19

bull

5 Payment

51 The lump sum payment for the street lighting installation shall be full compensation

for furnishing ell materials labour equipment tools supervisiorl testing and incidentals

neossary to complete the work inoluding any necessary backfill foundations restoration

of footwalk roadway curbing and appurtenances damaged or destroyed during

construction The payment shall also cover the cost of design where this Is called for

The ILlmp sum paymEmt shall be deemed to include full compensation for

all additional materials and work not shown on Ihe Drawings or specified which are

nesessary to complete the installation

62 The work measured as provided in 42 shall be paid at Ihe contraot unit price for eacl1

item such price and payment constituting flln compensation for aU materials labour

equipment tools and incidentals nseded to complete the work All materials Bnd work

necessaJY for satisfactory completion of the installation which are not specifically

mentioned in the Bilt of quantities shall be deemed to be included in the items shown

corw~ors 6 Information to be supplied by bidtfelS

61 catalogs at electrioal components lanterns ballast etc

62 Plans and circuit diagrams ground rod connection diagram

S3 Photometric data

631 Utilisation Curve

632 Isoc8ndala diagram bull

633 Horizon~81 isofootcandle diagram

634 Polar light distribution curvs

64 Cataisl of columns BraCKets Base Plates concrete foundations

20

7 Other details of steel columms not mentioned above should comply with British

Standard 1840 1960 The decision shall be made by the Department

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IJftl tIhl1JUII1lf1j~ILfl CltlUlIi1-l 1 ~Yl1UYjI11lilll Ift1YlnqJ qJ1 ru~11 LLftYltlfl~ih JJIlbullI 1 ~ IIfVlllJUfllUlJJmfltJJfl4fr1llMIM LI~CltlJmiddotMil~1J tliI-l71fJ~if)JVlIlll Lull

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11 MAIN INCOMING SWITCH BOARD 1~MIULft1YHh~L~rl1ifl1U1111 1210 B5l-l1l 6 UJl9lf 11111111 t9lJiI(fl-lfiIl1li4lJ~emllW1tnhlbJLiiU

lIl1lJnmiddothlllfl-lmJ1L~1 1lJ1lJill1lJLnIJ 10 L~WiiuJ11l7 ~Jl1)JUtjUN

l1fllltllilluflilslntlll1l4hlPi1l1fJlifl~Ui9l1li-tHl1t14f1~ L~1 iitl-lUltamphJVI~ ~ ~ ~tl ~ Vl1~I~fJlnUfll-l~~I1ntlltlWUi1ltl T3I1U 170middot200 wIl5 M~i~lI

SAFTY SWITCH lIUI1lniln1EiUpoundlnfl1Jii1UW MAIN INCOMING SWITCH

mil ~A ~ v ~J12 Iflltlll FUSE lU(Itll1lt11Uftl (TIME DElAYl lll~ffl1)1~13l11CUn1tfli1lll1

(INTERRUPTING CAPACITYll(11)1J6tJnh 10000 AMPERES SYMMETRICAL

UHz~tH~ AMPERE RATING lI1FI FUSE ~HYjnnnrrWLiitllIU11l AMPEREi

C LFI~~itl t l I iJ X ~I 113 Vl1nOlflVl~LnIJm1 1 OWITlJn 1 l-ll~Il~~Hillilfl-l l~rlJjHhtlfll JIl~1J1J

SAFTY SWITCH ~ FUSE ilEh~ct~ftil-lt~ LilUPllIj3i L~~lgtlpoundllltl1Pl AMPERE RATING ~tlj FUSE 11~J1~Jn1J LOAD lJ~WNlt9tltnlI1

rh~tJllN ~R1llliltlnUlyenl~l fJM nf1J 1ll7jIl~gt2olIli1~1nl1mfl1~iifi shy

1IIh1~til111unm1~nu~~Lfl1fltl1~tlUUlYhLill DISTRiBUTION BOARD klf- - shy

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tvh~iuIAflljUUtJ C 1oIi1lllU1l UNDERGROUND CABLE NY( 1~lIil~ ~W

tilfJNfl)Jllii~vhLVtJ~nuwhj1 till uil 1I1111ll ~W~1oIuwiillYiUIvtfJ ~lru mmiddotuiWrht~whllU1lil AMPERE lI1ljI1-k~-rV tilMffllW~1nh 4 [1111-1

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ilfl19ri1lt~fUliltll1~~)e11U~I1~J~ln~l1li1iIl-l CLEVIS ~fll SECONDARY RACK 1l1JlltU 30 - 60 n~Wll1 tillJ~lfie-tmf1illlll1Eltlla

1~1l2Jl~ 150 WIIll Uflfl~~t1I11t1ilf1nfJ~ltf SERVICE ENTRANCE CAP -~- ______-- _-_ -- ~ - _ ~tl3Jflhl

15 f1l1L~U~1al1n SWITCH BOARD bJul LOAD 11ni11~~hJi~l~1ffl1tJ

lilfl~f~lWtl 14 rllU~fllVl1Jlt1WtJl~il~~fl ~1WviilreflftlfJrI-M1lOil

tfltlllJ~m~~~lJlUu 14 ~e llllt1l~ltJIlu~f)muJ1fl3Jnu (fll3J11a~~tIla~~n~l~~I~fl~~~t1lln)ri~W~ll~1~~u~UJ3JiI1~1~ fflJYifnlluWIlnW ~1tllf~WiiiutJ1l1jhiSnl1n~l~u~lJllillln~1 60

LoDWjUJ tL1llilsLAB llatJn1m14~fl~nut~ml1ltiI1~UII1ltDi f1 Jlflfilll lI1Il1l

Jl1ljfl1fJIt 1Iil~ II1~3Jn1J LOAD 1ll1l011114DW1Il1i11 f1~1ii 1I~fl 14

16 m~tJfl1t1111t1tlL~l1ftJhJ t1~91Ht~IJJitH1itl1fJlIibr STREET LIGHTbull

WIRE (TYPE RHI ~1tltfl1UililVl~~1ll~middothltiifJ 141il1f ~-1n1W 2 mru IKfln

Il1J1 fI~~Illftl lI1l-l illhMrilIlil-l ILIl14hi~ ~ n+1 2 11I111-1tiflibll LIl1

17 lfIl4ill3J1lIiriilI)~JIl~il CARTfliDGE FUSE lltl4rluintfiPil~I1~t1

l

23

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111Jv4jh~mflI1Vjn 1mh

19 1mtll-4JrhltJlJ O1JlPiflfl1 poundIfl~~JWl fJiI1iJ~CPifl fl1 E1YIl iiiuLlhntJ LtlftllOltl mtth

fltln1nnwh~~1~llltil~~nllQtl (111 lil1nJfi1fl1v1 ~lll~~~~UAU ~ nelll~tll ~n~iiiil~u~-3111Yl[ ei1 LLfI~ltJtfl1l 1 fl 1 ~4il11Jft~l~tJpoundIlPi1ltlld 191 rl~1U~Ullifl411hfl1JVlMIIPl~il~J~1ihrIi111~1nh 16 ITI UU

192 GROUND ROD Iifl~tJuJil~IlllLL~-31ill1fllLLtl-ljlJih (COPPER bull w

CLAD) i~lrIiWlilU1J~)~Jdnfll~jUlfJn15S ih UOJ1lWUtm

n~16 t1 rell1lhUII~1~lflIL~~t~ntlllJK~na (HOT-DIP

GALVANIZED STEEL) ril~ LLI1i1litHilLlAUeh~lilmn1t3Jufllni1 51B

ih fjJ1lWUIlJn11 B ~1i1

193 n1111itlmmL~fllJiI1mNiiiuolJ GROUND ROD ffl~il1Ji71

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bull Na 86W 108 Watt

135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

bull 1OOOW 1043 Watt

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Page 21: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

16

34 Pull boxes or Junction Boxes

Pull boxes shall be installed as shown on the plans and in any case at not

more than 00 meters intellals The contractormiddotmay install additional pull boxes without

extra charge jf he wishes Pull bo)(es shall be of reinforced concrete not less than 10

centimeters thick and may be of approved pre-cast deSign Reinforced concrete covers

acoured by two recessed brass bolts shaff be used on faatwalks the covers baing

inscribed Street Ughting on the outside Under the roadway covers shall be of steal or

oast iron inscribed as specified middotabove andlaid in II suitable concrete footing to withstand

trecffic loads Metal covers shall be effectivalr earthed to an earthing rod inside the box

Tops of puUboxes ~Ilan beeffectivoaly level with the slrfOunoing paved areas whether

footwslk or roadway but in unpaved areas the tOpl of pull boxes shall be buried 30

oentimeters below groul1d level The bottom of pull boxes shall be bedded in sand and

cement or crushed rock Permanent makers shall be provided and erected

toshow the position of all pull boxes

35 Tasting

A funotional test shari be made on completion of the work n order to

demonStrate thet every part of the equipment and installation fUllctionS as intended and

specJfled This test shall consist of not less ~a~ five nights continuous and satisfaatOlY

operation If any defects or unsatisfactory operation are revealed this condition shalf be

oorrected imd tne test continoued until the required five nights of satisfaotory opera~ion

have been performed

Prior to the functional test tlie contractor shaff carry out thefollowing

tests to the entire satisfaction of the Engineer

1) Each circuit shall be iested for oontinuity

2) Each circuit shall be tested for cething

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17

1

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3) A m~gger test shall be made between eaoh cirouit and eart) The

Insulation fesistance shall be shown to be at least that specified within the relevant

codes

4) The distribution horizontal illumination valve of specified spacing in eaoh

code item in rale 6flux measured between two iuminair as avery two meters along

longitudinal and transverse road way line are essentially measured to show maxmean

min illuminati and uniformity ratios

Uniformity ratio minimum illumination average illumination

= not less than 126

and maximum illumination

minimum illumination

not more than 61

5) Rainproof Test

The lantern under test shall be mounted in its normal orientation on en

adjustable sUpPOrt as shown in fig 1 so that the fitting is near the center of the arc

desoribed by 1he oscillating tuba

After being switched on for one hour the lantern shllil be subjected to II

spray of water at a temperature not exceeding 200 C and ilt e pressure of approximately

67 Ibsin2 104 kgscm2i the tube being oscillated so as to describe an angle of SO

degrees from the vertical and in both directions from it This treatment shall be continLllld

for 20 nilnutes the fitting being switcher off after 10 minutes

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18

i

At tha end of this test there shall be to damage to the lamp or enclosure

and no visible evidence of water having aocumulated it the fitting

04 rnm dlo hDln

Fig Apparatus for rainprooftest

On the completion of testing the contractor shall supply to the engineer

three copies of as buill plans and circuitdiagrams whicn shall clearly indicated any

modifications which have been made to the original design

4 Measurement

41 Unless a Bill of quantities is provided thjs item will not be measured and payment

shall be made one lumpsum basic

42 When a Bill Of Quantities is provided measurements shall made on the items detailed

In the Sill of quantities completed accepted and neesured in place The unit of

measurement for each item shall be the unit of measurement shown in the Bill of

Ouentitias

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5 Payment

51 The lump sum payment for the street lighting installation shall be full compensation

for furnishing ell materials labour equipment tools supervisiorl testing and incidentals

neossary to complete the work inoluding any necessary backfill foundations restoration

of footwalk roadway curbing and appurtenances damaged or destroyed during

construction The payment shall also cover the cost of design where this Is called for

The ILlmp sum paymEmt shall be deemed to include full compensation for

all additional materials and work not shown on Ihe Drawings or specified which are

nesessary to complete the installation

62 The work measured as provided in 42 shall be paid at Ihe contraot unit price for eacl1

item such price and payment constituting flln compensation for aU materials labour

equipment tools and incidentals nseded to complete the work All materials Bnd work

necessaJY for satisfactory completion of the installation which are not specifically

mentioned in the Bilt of quantities shall be deemed to be included in the items shown

corw~ors 6 Information to be supplied by bidtfelS

61 catalogs at electrioal components lanterns ballast etc

62 Plans and circuit diagrams ground rod connection diagram

S3 Photometric data

631 Utilisation Curve

632 Isoc8ndala diagram bull

633 Horizon~81 isofootcandle diagram

634 Polar light distribution curvs

64 Cataisl of columns BraCKets Base Plates concrete foundations

20

7 Other details of steel columms not mentioned above should comply with British

Standard 1840 1960 The decision shall be made by the Department

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SAFTY SWITCH lIUI1lniln1EiUpoundlnfl1Jii1UW MAIN INCOMING SWITCH

mil ~A ~ v ~J12 Iflltlll FUSE lU(Itll1lt11Uftl (TIME DElAYl lll~ffl1)1~13l11CUn1tfli1lll1

(INTERRUPTING CAPACITYll(11)1J6tJnh 10000 AMPERES SYMMETRICAL

UHz~tH~ AMPERE RATING lI1FI FUSE ~HYjnnnrrWLiitllIU11l AMPEREi

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tvh~iuIAflljUUtJ C 1oIi1lllU1l UNDERGROUND CABLE NY( 1~lIil~ ~W

tilfJNfl)Jllii~vhLVtJ~nuwhj1 till uil 1I1111ll ~W~1oIuwiillYiUIvtfJ ~lru mmiddotuiWrht~whllU1lil AMPERE lI1ljI1-k~-rV tilMffllW~1nh 4 [1111-1

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ilfl19ri1lt~fUliltll1~~)e11U~I1~J~ln~l1li1iIl-l CLEVIS ~fll SECONDARY RACK 1l1JlltU 30 - 60 n~Wll1 tillJ~lfie-tmf1illlll1Eltlla

1~1l2Jl~ 150 WIIll Uflfl~~t1I11t1ilf1nfJ~ltf SERVICE ENTRANCE CAP -~- ______-- _-_ -- ~ - _ ~tl3Jflhl

15 f1l1L~U~1al1n SWITCH BOARD bJul LOAD 11ni11~~hJi~l~1ffl1tJ

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LoDWjUJ tL1llilsLAB llatJn1m14~fl~nut~ml1ltiI1~UII1ltDi f1 Jlflfilll lI1Il1l

Jl1ljfl1fJIt 1Iil~ II1~3Jn1J LOAD 1ll1l011114DW1Il1i11 f1~1ii 1I~fl 14

16 m~tJfl1t1111t1tlL~l1ftJhJ t1~91Ht~IJJitH1itl1fJlIibr STREET LIGHTbull

WIRE (TYPE RHI ~1tltfl1UililVl~~1ll~middothltiifJ 141il1f ~-1n1W 2 mru IKfln

Il1J1 fI~~Illftl lI1l-l illhMrilIlil-l ILIl14hi~ ~ n+1 2 11I111-1tiflibll LIl1

17 lfIl4ill3J1lIiriilI)~JIl~il CARTfliDGE FUSE lltl4rluintfiPil~I1~t1

l

23

1S mJilILtJnIll~~lolJl(aJuVl11lINmliJ tJl1 l1~L~um1r4fllUliil UVlU~~eriI~ lli~u~u dtl~n mtlutiltiiJU~ziht~Jr~1l1 ril ln11I11fl ((Jnf11IIJl fIu~~1 ttlVll til ~Wflittill1-laquoriIIVltfltitl m~tYI (11)lilU1lJ1lEJBinIl1lri-mUf011fJ Lt~i

lmfliflILlJn(q1flffltl WIRE JOINT l11fluJ1tl~tJltlf1t1i1ilvnIl1tllhJuuuliw ill~~ilflnfl LltllfuiftJliltlig~~Lt1u~1n1rolufl1Y1flJ~~t1t1 (INSULATING SEALING COMPOUND) tll~U1lJ~lJ TAPE lilll~mftJrrU

111Jv4jh~mflI1Vjn 1mh

19 1mtll-4JrhltJlJ O1JlPiflfl1 poundIfl~~JWl fJiI1iJ~CPifl fl1 E1YIl iiiuLlhntJ LtlftllOltl mtth

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192 GROUND ROD Iifl~tJuJil~IlllLL~-31ill1fllLLtl-ljlJih (COPPER bull w

CLAD) i~lrIiWlilU1J~)~Jdnfll~jUlfJn15S ih UOJ1lWUtm

n~16 t1 rell1lhUII~1~lflIL~~t~ntlllJK~na (HOT-DIP

GALVANIZED STEEL) ril~ LLI1i1litHilLlAUeh~lilmn1t3Jufllni1 51B

ih fjJ1lWUIlJn11 B ~1i1

193 n1111itlmmL~fllJiI1mNiiiuolJ GROUND ROD ffl~il1Ji71

GROUND ROD CLAMP 1111~Ilt1mru~1flnm1 tj~il1JPiutlflm~lN1 J 1t~ ~ 4~t ~

194 n111J1 ~IJ11t1JMill1111 ~I~lEH ~~~Pl fl JJ Ilfl~11111 III IIJ~1lYI 1ZflIhllJ~

~il~tlfl1t1t1til6-l GROUND ROD lINl11iiiJfln1mrUil~J SO bull J

bull ~~UtitlJI1 IYlllt~tlfll1~rJIl~lifltJ1nnlQntlnn~

196 mIIit)M~Ul1nH1t1J1Jt1rJ9iU1lIJOU iIltJ~UhJJI~tl~ ~If1~~WhJ

UtlEln+1 2 ~c)

110 lfflllllllnUtl1JLurfIHi11~il VOLTAGE DROP 1~1~ MAIN INCOMING

SWITCH BOARD nlJ-iJllM 1LUN41thhriu 2u1flLiIIl~rltlnlN

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FACTOR hi~m~1 09 LAG Will i1l1~J1hjjll1li1l~1ljjlU~lJfllflll

fIHlbrmW~1 nrl1 05 MEGoHM

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tlHhlLlIlfiZ i~UnlJ~l ~MiJlh~1n~l 05 MEG OHM

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iiIl10~1U11jLii 25 OHM

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21 MAIN INCOMING SWITCH BOARD xlllulbJ~)lJ1lf1f1L1iWI~1llJnU 11 ~ J ~ lV I~ bull J ~ lJt 11 1-11flvnnl~~~YlIWlflVIlUIi m1lj lU~1LLU~I1I1j1lm IUnl1I1lfll

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22 I1ftl-1H FUSE ~1lJ11VilafifJll~i~1u1l t2middot

ll ~tl J ~l 11oj23 lt10flllllUl-1lnUn11 1 NlT JHuU ~1lJ11JIllflEl(i)Yl1Z1lIHUlIil 13

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ilitlttJal SAFTY SWITCH 1tl FUSE lItl4HI1VflJ 1mUUfi1f1i~iliu ~flJ

Lutn1tnutl7-lllhnlVl1u i~dju1tlvn lJ t1tlitfl poundIf1~ltlJ1ntllftl 4

WliVl1 ndluIl1a~~ultllUll n111ll NrnIlU1ln il 1Ii1UI~tN1JtlJIilllJtll

~ bullbull I ~ t J Ii I inll1nll1Ull~fl) UUU A MnJllUUl TW VlUI1~lJ1[1I11IWajllflllllJnlbil

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Iifl~lillJL~1jJWlV112 ~W1I110 ~Jil185 UJIlI1 1-11El 6 LJJfl1~li1rl ~U~Pl~l~

I CLEVIS tlUhlllkl-ll1~1n~1 SECONDARY RACK jJ1l4m1~YlrhlIm~N

30middot 60 loitlelUJlIl1 llilpoundlltiltffregmiddotwiltluf11t1fl1atoyenU1tJ1N 160 UJ911 rilLInll

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fl~n~ IRIGID STEEL CONDUIT) tlI1U~1l1i1U1l~ll1fJItlnilWllJPI~YII

rMfuA1t1~tIlJil1ml1~l~fl)IJJ(lti ENtRANCE CAP

26 mfL~lJl1tll1n SWITCH BOARD tueT-l LOAD I~eiluhJIJ11jJrlfj ~ 11 Ji I ~ l

rZlalflll bUlIil 15 Yl4U MlJrImiddota1lEJIlUIUlJUfJltliIlU~IlEJ

2~ mnitl1un1fJ1Ulfl1~ultJu41ilHLfl~~~lil~mftlgtlLLI1~IOll1tlm)J1tJ fltL~~fIlUfa 16

26

27 M~~raquo~jt1l~minmltllllliiP1llliJifl~3j CARTRIDG E FUSE Llh~middothllnlJ 8 17 ehutfl~~~ll111 rnlllJ 1~1~~FllIiWItifltlUPIJ1~Jfl2ltJ1U1n Wlnu 10 ~bull~ ~1 1 I~~ tvlJil CARTRIDGE FUSE l-t1e CIRCUIT BREAKER

111)1) ~ lJl-lluvi1Utl-l~~Ejnu 28 n111ia LltlmlJtJ~tHi1IJJlJ ~fBN111flJt~tlnw1liUlt f) rlU~ 18 AlU

lU1lt~tl~lHUfl ~J I-l1~~Ln1tJrll-ltfrNf~Wlll~Yi1U Ilill~lIitltUOfllN ~ ~

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fltllUl n~11l11 111 WIRE JOINT SIllfjJfl~VIl ~1lllUPljJU l-t7poundluUUuUmI

L1tHililn~ LLft)UliUliltliI~~tih~1 ~tlrnfJU~1lfuli~H11 tI

(INSULATING SEALING COMPOUND) ILfl~Uyjlllill TAPE IIiWtlhl1nnfu

fIltllri~1ttMIIl1lln 1 Ull~ ~ft)+tJrl tlil11ilyjlhDll~ntilllnlJt~flh~ llfl~Il)nUlvrfJI~lJVPl~laRIGID CLAMP llll RIGID CLAMP BACK middotflfI

vlllnuillNfiTl-Ul ll1ulllUYjntRl- (EXANSION Bom dll-lfUfltYllIJ

fl~m11il1~tor BOLT AND NUT yfiJ)IltW)1Jnjflfll2lhfufI~I1IJ~n

tg)tJM~ua tIllwfflz4J1liha)h~ flUWlnunltj1 50 L4u~ rtI Pl1

29 lIlllM91lht~lJlJmtriflfllJIN~umiddothllilu1t1~1lJ11~flLliltJ~r1l171uffj 19191192193 194l11 196

210 VOLTAGE DROP ~11u1tlIll1lJ1lJilI~ltIl~1~lnuftl 110

211 011JI1ln1ll~I~1ill4Jil1Juuulw~rl1UtllflUMlflLI11P1lllilf111l11uoffEJ

111 t~nulvHh1JPrnfll~lrt1tnillJnlfMllltllJ~)l

112 n1r lYlihlll nllll~I phlilUn11jllj~J~ftflUIlI1ll11tJfilfIilflvltL1rhfie

11211211122 Ul 1123

3 rilll1Y1wmJM~1lllnJl11lJ Uft1I1IildhfJ I-1SJltJOIt 1ruUlrl-MlUtil

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tt~l~fi1MfteINihfJUflmlaquoutl1-lvh-l 1 iJ~lLLUh~d

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31 MAIN INCOMNG SWiTCH BOARD li-YLUWttJ~ll1r1JIlIL~Eli1l~1lJ1U~~ 11 r-

~

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1 ~ i- ~ 0J

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34 n11LMU~lallnj1)Ill(Il1lPllLIl1lJVl1 01 MAININCOMING SWITCH ttlZ

IiitlhJ~~ SAFTY SWITCH 11l FUSE ll1l~NI1rlfla~1i~lJ 1 Vjn111l x~ilUhj lJI

P113-11UlflLJ tl6iYl1tJ tUlJ1l 24

36 n11i~USlfl9ln MAiN INCOMiNG SWITCH BOARD 1tltT~ LOAD 1A1nerlilf

~UllaquoliluhJumn1pound1Ii1aj1)~-llmW1ill 15bull

36 n11L~Uf11JlmJhlt~1tll~~~ LUWtflgt11~lil1J1tl111w11a111ilrt~ 1~tMlu ~il 16

)-llriillllllfl+JLlrm PHASE JJMn1In91LtllflJ~11i1iili CARTRIDGE

FUSE ilfl~nU n1ffil~~JU

nmll~1auemrlll lLl-Iull1flNl1tilla11Xt1J-u 111 1 -I 11tml1i1a~~lJHhdftl

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192 193 194 LIS 195

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311 nilJm~Vlfll-l~tir1l ~)jtltJllUU1W~IJ 1Jlnm1 ~~11l1ilmriruullYlriEl

hl t~Ji1ntll1l~tJtlrn~~rliltdfil 111 ~n11hl~1JllmflJHtlnntlu mi3I)9DUffl1lEJ

312 rntIYl1UflnlilW~tlhiilWn1lIij1ll~fl1l1il1)J rJfJlliiiaVl~jtjnUfil 112

11211122 LUI 1123

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6 36 22

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70 188 121 l

~ i 96 231 160 i

I 170 ~268120

dbull

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29

bull Na 86W 108 Watt

135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

bull 1OOOW 1043 Watt

9 fIl 1W-7tJNIIIJfiltJltilltllli~ 1iifl~1tnlfHtltll fI

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Page 22: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

17

1

- ~ j

3) A m~gger test shall be made between eaoh cirouit and eart) The

Insulation fesistance shall be shown to be at least that specified within the relevant

codes

4) The distribution horizontal illumination valve of specified spacing in eaoh

code item in rale 6flux measured between two iuminair as avery two meters along

longitudinal and transverse road way line are essentially measured to show maxmean

min illuminati and uniformity ratios

Uniformity ratio minimum illumination average illumination

= not less than 126

and maximum illumination

minimum illumination

not more than 61

5) Rainproof Test

The lantern under test shall be mounted in its normal orientation on en

adjustable sUpPOrt as shown in fig 1 so that the fitting is near the center of the arc

desoribed by 1he oscillating tuba

After being switched on for one hour the lantern shllil be subjected to II

spray of water at a temperature not exceeding 200 C and ilt e pressure of approximately

67 Ibsin2 104 kgscm2i the tube being oscillated so as to describe an angle of SO

degrees from the vertical and in both directions from it This treatment shall be continLllld

for 20 nilnutes the fitting being switcher off after 10 minutes

- shy

18

i

At tha end of this test there shall be to damage to the lamp or enclosure

and no visible evidence of water having aocumulated it the fitting

04 rnm dlo hDln

Fig Apparatus for rainprooftest

On the completion of testing the contractor shall supply to the engineer

three copies of as buill plans and circuitdiagrams whicn shall clearly indicated any

modifications which have been made to the original design

4 Measurement

41 Unless a Bill of quantities is provided thjs item will not be measured and payment

shall be made one lumpsum basic

42 When a Bill Of Quantities is provided measurements shall made on the items detailed

In the Sill of quantities completed accepted and neesured in place The unit of

measurement for each item shall be the unit of measurement shown in the Bill of

Ouentitias

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19

bull

5 Payment

51 The lump sum payment for the street lighting installation shall be full compensation

for furnishing ell materials labour equipment tools supervisiorl testing and incidentals

neossary to complete the work inoluding any necessary backfill foundations restoration

of footwalk roadway curbing and appurtenances damaged or destroyed during

construction The payment shall also cover the cost of design where this Is called for

The ILlmp sum paymEmt shall be deemed to include full compensation for

all additional materials and work not shown on Ihe Drawings or specified which are

nesessary to complete the installation

62 The work measured as provided in 42 shall be paid at Ihe contraot unit price for eacl1

item such price and payment constituting flln compensation for aU materials labour

equipment tools and incidentals nseded to complete the work All materials Bnd work

necessaJY for satisfactory completion of the installation which are not specifically

mentioned in the Bilt of quantities shall be deemed to be included in the items shown

corw~ors 6 Information to be supplied by bidtfelS

61 catalogs at electrioal components lanterns ballast etc

62 Plans and circuit diagrams ground rod connection diagram

S3 Photometric data

631 Utilisation Curve

632 Isoc8ndala diagram bull

633 Horizon~81 isofootcandle diagram

634 Polar light distribution curvs

64 Cataisl of columns BraCKets Base Plates concrete foundations

20

7 Other details of steel columms not mentioned above should comply with British

Standard 1840 1960 The decision shall be made by the Department

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21

bull

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11 MAIN INCOMING SWITCH BOARD 1~MIULft1YHh~L~rl1ifl1U1111 1210 B5l-l1l 6 UJl9lf 11111111 t9lJiI(fl-lfiIl1li4lJ~emllW1tnhlbJLiiU

lIl1lJnmiddothlllfl-lmJ1L~1 1lJ1lJill1lJLnIJ 10 L~WiiuJ11l7 ~Jl1)JUtjUN

l1fllltllilluflilslntlll1l4hlPi1l1fJlifl~Ui9l1li-tHl1t14f1~ L~1 iitl-lUltamphJVI~ ~ ~ ~tl ~ Vl1~I~fJlnUfll-l~~I1ntlltlWUi1ltl T3I1U 170middot200 wIl5 M~i~lI

SAFTY SWITCH lIUI1lniln1EiUpoundlnfl1Jii1UW MAIN INCOMING SWITCH

mil ~A ~ v ~J12 Iflltlll FUSE lU(Itll1lt11Uftl (TIME DElAYl lll~ffl1)1~13l11CUn1tfli1lll1

(INTERRUPTING CAPACITYll(11)1J6tJnh 10000 AMPERES SYMMETRICAL

UHz~tH~ AMPERE RATING lI1FI FUSE ~HYjnnnrrWLiitllIU11l AMPEREi

C LFI~~itl t l I iJ X ~I 113 Vl1nOlflVl~LnIJm1 1 OWITlJn 1 l-ll~Il~~Hillilfl-l l~rlJjHhtlfll JIl~1J1J

SAFTY SWITCH ~ FUSE ilEh~ct~ftil-lt~ LilUPllIj3i L~~lgtlpoundllltl1Pl AMPERE RATING ~tlj FUSE 11~J1~Jn1J LOAD lJ~WNlt9tltnlI1

rh~tJllN ~R1llliltlnUlyenl~l fJM nf1J 1ll7jIl~gt2olIli1~1nl1mfl1~iifi shy

1IIh1~til111unm1~nu~~Lfl1fltl1~tlUUlYhLill DISTRiBUTION BOARD klf- - shy

~fl~~~4tJP1l1lJ -u~~tl~~~~~~~ditl~fi~~~~~~Vi-~ci4~m1 ntl1~IINtJUU L~fJiJ~1~~Ii~1~tl~1L~~lnUn~~

shy shy

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22

14 n1~1Jal11il1nlIl~l~WIll~~Pl1tl~-rV ~~ MAl N INCOMING SWITCH Uflt

1Iiiltl~J SAFTY SWITCH Ji~flFU$E 1lil-ll~ lniflfludlaltftl1 ~lIn(llll1l-ln)f

tvh~iuIAflljUUtJ C 1oIi1lllU1l UNDERGROUND CABLE NY( 1~lIil~ ~W

tilfJNfl)Jllii~vhLVtJ~nuwhj1 till uil 1I1111ll ~W~1oIuwiillYiUIvtfJ ~lru mmiddotuiWrht~whllU1lil AMPERE lI1ljI1-k~-rV tilMffllW~1nh 4 [1111-1

ij~fl3l1ll1 laquo~~ ttlUntl1l11~9I111-t1lW11ilti11i~1~1iH~UWiilmfJfl1Jtwh ()l1 4 iIflmiddotm11~Jgj1poundJn11lyj-Ml1M1oIell1 ~~jll1rltl LLflrlJdlflflllUvIl

ftltJft11111l1U(IlLflM1l1lJKIna (RIGID STEEL CONDUm ~flilfl~n1J01 n ~IltJn1LtllOLLftliltJ1fllhJ11(1)1 tTtJiI1Y1ltJ~1n m fl1l~ uft~l4Pia

ilfl19ri1lt~fUliltll1~~)e11U~I1~J~ln~l1li1iIl-l CLEVIS ~fll SECONDARY RACK 1l1JlltU 30 - 60 n~Wll1 tillJ~lfie-tmf1illlll1Eltlla

1~1l2Jl~ 150 WIIll Uflfl~~t1I11t1ilf1nfJ~ltf SERVICE ENTRANCE CAP -~- ______-- _-_ -- ~ - _ ~tl3Jflhl

15 f1l1L~U~1al1n SWITCH BOARD bJul LOAD 11ni11~~hJi~l~1ffl1tJ

lilfl~f~lWtl 14 rllU~fllVl1Jlt1WtJl~il~~fl ~1WviilreflftlfJrI-M1lOil

tfltlllJ~m~~~lJlUu 14 ~e llllt1l~ltJIlu~f)muJ1fl3Jnu (fll3J11a~~tIla~~n~l~~I~fl~~~t1lln)ri~W~ll~1~~u~UJ3JiI1~1~ fflJYifnlluWIlnW ~1tllf~WiiiutJ1l1jhiSnl1n~l~u~lJllillln~1 60

LoDWjUJ tL1llilsLAB llatJn1m14~fl~nut~ml1ltiI1~UII1ltDi f1 Jlflfilll lI1Il1l

Jl1ljfl1fJIt 1Iil~ II1~3Jn1J LOAD 1ll1l011114DW1Il1i11 f1~1ii 1I~fl 14

16 m~tJfl1t1111t1tlL~l1ftJhJ t1~91Ht~IJJitH1itl1fJlIibr STREET LIGHTbull

WIRE (TYPE RHI ~1tltfl1UililVl~~1ll~middothltiifJ 141il1f ~-1n1W 2 mru IKfln

Il1J1 fI~~Illftl lI1l-l illhMrilIlil-l ILIl14hi~ ~ n+1 2 11I111-1tiflibll LIl1

17 lfIl4ill3J1lIiriilI)~JIl~il CARTfliDGE FUSE lltl4rluintfiPil~I1~t1

l

23

1S mJilILtJnIll~~lolJl(aJuVl11lINmliJ tJl1 l1~L~um1r4fllUliil UVlU~~eriI~ lli~u~u dtl~n mtlutiltiiJU~ziht~Jr~1l1 ril ln11I11fl ((Jnf11IIJl fIu~~1 ttlVll til ~Wflittill1-laquoriIIVltfltitl m~tYI (11)lilU1lJ1lEJBinIl1lri-mUf011fJ Lt~i

lmfliflILlJn(q1flffltl WIRE JOINT l11fluJ1tl~tJltlf1t1i1ilvnIl1tllhJuuuliw ill~~ilflnfl LltllfuiftJliltlig~~Lt1u~1n1rolufl1Y1flJ~~t1t1 (INSULATING SEALING COMPOUND) tll~U1lJ~lJ TAPE lilll~mftJrrU

111Jv4jh~mflI1Vjn 1mh

19 1mtll-4JrhltJlJ O1JlPiflfl1 poundIfl~~JWl fJiI1iJ~CPifl fl1 E1YIl iiiuLlhntJ LtlftllOltl mtth

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192 GROUND ROD Iifl~tJuJil~IlllLL~-31ill1fllLLtl-ljlJih (COPPER bull w

CLAD) i~lrIiWlilU1J~)~Jdnfll~jUlfJn15S ih UOJ1lWUtm

n~16 t1 rell1lhUII~1~lflIL~~t~ntlllJK~na (HOT-DIP

GALVANIZED STEEL) ril~ LLI1i1litHilLlAUeh~lilmn1t3Jufllni1 51B

ih fjJ1lWUIlJn11 B ~1i1

193 n1111itlmmL~fllJiI1mNiiiuolJ GROUND ROD ffl~il1Ji71

GROUND ROD CLAMP 1111~Ilt1mru~1flnm1 tj~il1JPiutlflm~lN1 J 1t~ ~ 4~t ~

194 n111J1 ~IJ11t1JMill1111 ~I~lEH ~~~Pl fl JJ Ilfl~11111 III IIJ~1lYI 1ZflIhllJ~

~il~tlfl1t1t1til6-l GROUND ROD lINl11iiiJfln1mrUil~J SO bull J

bull ~~UtitlJI1 IYlllt~tlfll1~rJIl~lifltJ1nnlQntlnn~

196 mIIit)M~Ul1nH1t1J1Jt1rJ9iU1lIJOU iIltJ~UhJJI~tl~ ~If1~~WhJ

UtlEln+1 2 ~c)

110 lfflllllllnUtl1JLurfIHi11~il VOLTAGE DROP 1~1~ MAIN INCOMING

SWITCH BOARD nlJ-iJllM 1LUN41thhriu 2u1flLiIIl~rltlnlN

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I 1 ~I~111 nnlYl1~~fll~l~)1lf)~~fj1Jtt1JULtfi~~tlt llULlnml llmLifl m111

iIlSgth ~~lgt)J q] till poundI ~ iLlJ1Jl(~11 Ufl L~ J VI Iiil (1)gtl flfilruCItU LmI1hgtl 1

11101UftlIU1Vllll-lLft 1Vll4 LfllJ ~ 1 flhNh vh6 1J11 gt11 mH~1I iIYl~llEt

~11t11 flil Vl~tln11LLlj-lrJ~l111t1ft L ~Elf Il1l~lAJJ1~Yh LLl 1jUMnf LII~

SINGLE LINE DIAGRAM 1~m111Yl1Ufl11-1ftl11i11rJltt1tmW1l14ritJdln11 ~

lIill~n171yHh W1l T~Ill ~111 Sllii1ltJ n1J~11lvi4QUmrutLa m1llJn1til1Yiw 1

112 mtlHh~1l1VlflH l~~1~OUn11t111lln11~Vl~~~Unlnrlf11tJ1vjfh~mJ Vl1I-IftlgtlJh Lihm11liHrillWtJlln LLIl1vI~1 n~1~491n01111I-M 1UII~ ~ fl l-l ~rll L~ufhlii III ~Hi~11 ~1iI1 ri 1111 Tlllll1llJ1 ir1l fl1H roh u~U 1 tlgj

ViNtflJ~lflthgtl H1llf1iiJl~~fl~ii 8AlLASn JIill1lll 1 Vll-l 1n

nT)J vn~j~fJgtlUlaquofJlvi1 L jjU nlfYI Iilil Ill vi~d 1121 11 VI iiil1J-liPIphrh laquo~tl4~~h POWER FACTOR flfJllJ t1i1tlVllUJIIllflUlll

bull

~)J i11EltU~lltflll 11111 Lt~~ IIN IiflPl 1n1In1itit~ fn1Yl laquon~ru

na~tI-1nU4llrJLlUlJ~ltlL1hJ1l1ltJ1WlllgtlLtiI)J LUlfim~ru nli ~

ni~ EJlhIiq bfllIfLJJtI~gtl

i1 i1lllbf)~ l iJ gtJ r11111 i1liIM1rJlIRtJ L~e-rli1

nlilliljllllJlnuflnVllltNihfl~lvjYlV11wm11~mjtJ POWER bull

FACTOR hi~m~1 09 LAG Will i1l1~J1hjjll1li1l~1ljjlU~lJfllflll

fIHlbrmW~1 nrl1 05 MEGoHM

112 2 Vli1lfliJll1i11llllJlhW1l1ul1J~fIlJlll1ill~J~lt 1Mr)~~11JLl 2l1lt1

tlHhlLlIlfiZ i~UnlJ~l ~MiJlh~1n~l 05 MEG OHM

U23 I1Q1f1il1l1ll GROUND RESTSTANCE lI1l~nl~Ill1lfllPU Llviil~Iltli1li

iiIl10~1U11jLii 25 OHM

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2 tThftEl~ft141iiflltlUUflW1U yenl~1P1n~1llihLfl-lfl~1~lI1ti11ru~PiIl~J1j (hrutifNI~11jUUflniu1ti Jum liell11Y11lJIlWLPiUL~)YJnlll~ il4fll itutll~-3d

21 MAIN INCOMING SWITCH BOARD xlllulbJ~)lJ1lf1f1L1iWI~1llJnU 11 ~ J ~ lV I~ bull J ~ lJt 11 1-11flvnnl~~~YlIWlflVIlUIi m1lj lU~1LLU~I1I1j1lm IUnl1I1lfll

IttJLlntlI1ht-11nlfi

22 I1ftl-1H FUSE ~1lJ11VilafifJll~i~1u1l t2middot

ll ~tl J ~l 11oj23 lt10flllllUl-1lnUn11 1 NlT JHuU ~1lJ11JIllflEl(i)Yl1Z1lIHUlIil 13

j

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24 mni1lUtl1t111n0IillI1lDlUJlLllffWJIil1 tH MAIN INCOMING SWITCH llfl

ilitlttJal SAFTY SWITCH 1tl FUSE lItl4HI1VflJ 1mUUfi1f1i~iliu ~flJ

Lutn1tnutl7-lllhnlVl1u i~dju1tlvn lJ t1tlitfl poundIf1~ltlJ1ntllftl 4

WliVl1 ndluIl1a~~ultllUll n111ll NrnIlU1ln il 1Ii1UI~tN1JtlJIilllJtll

~ bullbull I ~ t J Ii I inll1nll1Ull~fl) UUU A MnJllUUl TW VlUI1~lJ1[1I11IWajllflllllJnlbil

lrlh1Ifth~U~1l AMPERE jJfl~ilifl4rill1 ~-l~ ~lJ~1iIUIlii1l~fl~WUllf)n-i1 ~ ~ t - Il1 I - ~ Jv 4 fIl1l-l~ flflUJIll1 ulI~I~lil-lLIIIlJfl1 fJ lJ Lm I1Utl1YllfI1l1llllB-4l~ 1 lI~I t

Iifl~lillJL~1jJWlV112 ~W1I110 ~Jil185 UJIlI1 1-11El 6 LJJfl1~li1rl ~U~Pl~l~

I CLEVIS tlUhlllkl-ll1~1n~1 SECONDARY RACK jJ1l4m1~YlrhlIm~N

30middot 60 loitlelUJlIl1 llilpoundlltiltffregmiddotwiltluf11t1fl1atoyenU1tJ1N 160 UJ911 rilLInll

I~Utl1t1~ll~l ~1l1atUlVlTWI ~tNt-nfllllllil1l iIil-l n 1~Hh LI1I1V1ftNltUtJ

l) - ~ ~_UI yC M1flllUlltlU~1jJNiUJUPllvnllujJnu L(1jU IUVlfl1fl2Jtl1 tI nnf1lt1l111 fl1iI1)1U I

fl~n~ IRIGID STEEL CONDUIT) tlI1U~1l1i1U1l~ll1fJItlnilWllJPI~YII

rMfuA1t1~tIlJil1ml1~l~fl)IJJ(lti ENtRANCE CAP

26 mfL~lJl1tll1n SWITCH BOARD tueT-l LOAD I~eiluhJIJ11jJrlfj ~ 11 Ji I ~ l

rZlalflll bUlIil 15 Yl4U MlJrImiddota1lEJIlUIUlJUfJltliIlU~IlEJ

2~ mnitl1un1fJ1Ulfl1~ultJu41ilHLfl~~~lil~mftlgtlLLI1~IOll1tlm)J1tJ fltL~~fIlUfa 16

26

27 M~~raquo~jt1l~minmltllllliiP1llliJifl~3j CARTRIDG E FUSE Llh~middothllnlJ 8 17 ehutfl~~~ll111 rnlllJ 1~1~~FllIiWItifltlUPIJ1~Jfl2ltJ1U1n Wlnu 10 ~bull~ ~1 1 I~~ tvlJil CARTRIDGE FUSE l-t1e CIRCUIT BREAKER

111)1) ~ lJl-lluvi1Utl-l~~Ejnu 28 n111ia LltlmlJtJ~tHi1IJJlJ ~fBN111flJt~tlnw1liUlt f) rlU~ 18 AlU

lU1lt~tl~lHUfl ~J I-l1~~Ln1tJrll-ltfrNf~Wlll~Yi1U Ilill~lIitltUOfllN ~ ~

tflfl1lJlf~nfl (CONNECTION BOX) lIill1lilllnWu1L~h~lilthuu LI1l2ltrt bull J 4 11 ~ 1 I_

fltllUl n~11l11 111 WIRE JOINT SIllfjJfl~VIl ~1lllUPljJU l-t7poundluUUuUmI

L1tHililn~ LLft)UliUliltliI~~tih~1 ~tlrnfJU~1lfuli~H11 tI

(INSULATING SEALING COMPOUND) ILfl~Uyjlllill TAPE IIiWtlhl1nnfu

fIltllri~1ttMIIl1lln 1 Ull~ ~ft)+tJrl tlil11ilyjlhDll~ntilllnlJt~flh~ llfl~Il)nUlvrfJI~lJVPl~laRIGID CLAMP llll RIGID CLAMP BACK middotflfI

vlllnuillNfiTl-Ul ll1ulllUYjntRl- (EXANSION Bom dll-lfUfltYllIJ

fl~m11il1~tor BOLT AND NUT yfiJ)IltW)1Jnjflfll2lhfufI~I1IJ~n

tg)tJM~ua tIllwfflz4J1liha)h~ flUWlnunltj1 50 L4u~ rtI Pl1

29 lIlllM91lht~lJlJmtriflfllJIN~umiddothllilu1t1~1lJ11~flLliltJ~r1l171uffj 19191192193 194l11 196

210 VOLTAGE DROP ~11u1tlIll1lJ1lJilI~ltIl~1~lnuftl 110

211 011JI1ln1ll~I~1ill4Jil1Juuulw~rl1UtllflUMlflLI11P1lllilf111l11uoffEJ

111 t~nulvHh1JPrnfll~lrt1tnillJnlfMllltllJ~)l

112 n1r lYlihlll nllll~I phlilUn11jllj~J~ftflUIlI1ll11tJfilfIilflvltL1rhfie

11211211122 Ul 1123

3 rilll1Y1wmJM~1lllnJl11lJ Uft1I1IildhfJ I-1SJltJOIt 1ruUlrl-MlUtil

fij1~Pl~~~1~1Hill~llJ 1~I1Jmjm1Jfjm1 ~11MIiltJ1Iltufli11t 1 6l1ll11 l~1llJ IIHUtml-t1ilL~flllUft1JlJ1nll~~~euroWl11Eltl1lnmN~middotu(~1Jhit1wliflfl~Oljuln-n1 l1iH

tt~l~fi1MfteINihfJUflmlaquoutl1-lvh-l 1 iJ~lLLUh~d

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31 MAIN INCOMNG SWiTCH BOARD li-YLUWttJ~ll1r1JIlIL~Eli1l~1lJ1U~~ 11 r-

~

) 32 n1Tloft fUSE ~dj1amphJIn1wmJlL~ICl~rlJ1llolrl 12 i

1 ~ i- ~ 0J

) 33 1A1fllJli1lI1l)lnUm1 1 ~I mthHtl~nm1tlilltlfJt1lmlJlnuiitl 13 ~ J_

34 n11LMU~lallnj1)Ill(Il1lPllLIl1lJVl1 01 MAININCOMING SWITCH ttlZ

IiitlhJ~~ SAFTY SWITCH 11l FUSE ll1l~NI1rlfla~1i~lJ 1 Vjn111l x~ilUhj lJI

P113-11UlflLJ tl6iYl1tJ tUlJ1l 24

36 n11i~USlfl9ln MAiN INCOMiNG SWITCH BOARD 1tltT~ LOAD 1A1nerlilf

~UllaquoliluhJumn1pound1Ii1aj1)~-llmW1ill 15bull

36 n11L~Uf11JlmJhlt~1tll~~~ LUWtflgt11~lil1J1tl111w11a111ilrt~ 1~tMlu ~il 16

)-llriillllllfl+JLlrm PHASE JJMn1In91LtllflJ~11i1iili CARTRIDGE

FUSE ilfl~nU n1ffil~~JU

nmll~1auemrlll lLl-Iull1flNl1tilla11Xt1J-u 111 1 -I 11tml1i1a~~lJHhdftl

18 v -I ~_I oj J ~I

lltJ 1llVlYl1ftlltn11f1tl N VlUlutHujFJ1-J nUfttLIJ EJj1)Y1 11j bhUlJfl 19 191

192 193 194 LIS 195

310 VOLTAGE DROP dJ1j1um~11tJlILfl[Ji11~j1jlul1l 110

311 nilJm~Vlfll-l~tir1l ~)jtltJllUU1W~IJ 1Jlnm1 ~~11l1ilmriruullYlriEl

hl t~Ji1ntll1l~tJtlrn~~rliltdfil 111 ~n11hl~1JllmflJHtlnntlu mi3I)9DUffl1lEJ

312 rntIYl1UflnlilW~tlhiilWn1lIij1ll~fl1l1il1)J rJfJlliiiaVl~jtjnUfil 112

11211122 LUI 1123

28

IlU1Jl~lilol~iVl n1mfl~Il~1Il~1lfuf1fJ~IJL~Ulu nlLfiQ~qflri~IIIfufl1~Liu1u

lln1I1U~Uln~1fl11 (Free air) vi~i1lmJUi)1m7

LlfI~Utlf~ttUJuufII~ 05 3-

10 10 6bull 16 813 I

1225 18 bull 4 27 16

6 36 22

10 60 30

bullbull 16 6076 i

ij25 96 64 d

36 119 79 ~ ~ 16060 102 ~ Iii

70 188 121 l

~ i 96 231 160 i

I 170 ~268120

dbull

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29

bull Na 86W 108 Watt

135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

bull 1OOOW 1043 Watt

9 fIl 1W-7tJNIIIJfiltJltilltllli~ 1iifl~1tnlfHtltll fI

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1O~ Al)JfU~IIlffUJIil~tifu~1~lUlh~Tliith~fnU1 (~Yi)J~PitJltJiil 14)

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Ol mnJrri1A nlUnnJ+ItfleHllvlrh Ll~~ellIJamplPl~~~ ow ) Lg1lIJ I)ru111Vlfl~ ~MM~ ~-lUitJUJfnJUll~l~L1t1U~fJiIIU~M11t~))l1t11t1Ll11 24 tlbJ~UUiollLLP)L)fl1~JuU(

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Page 23: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

18

i

At tha end of this test there shall be to damage to the lamp or enclosure

and no visible evidence of water having aocumulated it the fitting

04 rnm dlo hDln

Fig Apparatus for rainprooftest

On the completion of testing the contractor shall supply to the engineer

three copies of as buill plans and circuitdiagrams whicn shall clearly indicated any

modifications which have been made to the original design

4 Measurement

41 Unless a Bill of quantities is provided thjs item will not be measured and payment

shall be made one lumpsum basic

42 When a Bill Of Quantities is provided measurements shall made on the items detailed

In the Sill of quantities completed accepted and neesured in place The unit of

measurement for each item shall be the unit of measurement shown in the Bill of

Ouentitias

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19

bull

5 Payment

51 The lump sum payment for the street lighting installation shall be full compensation

for furnishing ell materials labour equipment tools supervisiorl testing and incidentals

neossary to complete the work inoluding any necessary backfill foundations restoration

of footwalk roadway curbing and appurtenances damaged or destroyed during

construction The payment shall also cover the cost of design where this Is called for

The ILlmp sum paymEmt shall be deemed to include full compensation for

all additional materials and work not shown on Ihe Drawings or specified which are

nesessary to complete the installation

62 The work measured as provided in 42 shall be paid at Ihe contraot unit price for eacl1

item such price and payment constituting flln compensation for aU materials labour

equipment tools and incidentals nseded to complete the work All materials Bnd work

necessaJY for satisfactory completion of the installation which are not specifically

mentioned in the Bilt of quantities shall be deemed to be included in the items shown

corw~ors 6 Information to be supplied by bidtfelS

61 catalogs at electrioal components lanterns ballast etc

62 Plans and circuit diagrams ground rod connection diagram

S3 Photometric data

631 Utilisation Curve

632 Isoc8ndala diagram bull

633 Horizon~81 isofootcandle diagram

634 Polar light distribution curvs

64 Cataisl of columns BraCKets Base Plates concrete foundations

20

7 Other details of steel columms not mentioned above should comply with British

Standard 1840 1960 The decision shall be made by the Department

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bull

e iilIlUt111i1017jjJlt~il1jnnJW1LLMIIi1gtl111f1itu 4tf)lJtIl1drlihj~~1fim nL~PJtu ~Utj~lltl-3lt5~l~1lmIIllJtun1t~lIl~ll1Jhj~ 1

IJftl tIhl1JUII1lf1j~ILfl CltlUlIi1-l 1 ~Yl1UYjI11lilll Ift1YlnqJ qJ1 ru~11 LLftYltlfl~ih JJIlbullI 1 ~ IIfVlllJUfllUlJJmfltJJfl4fr1llMIM LI~CltlJmiddotMil~1J tliI-l71fJ~if)JVlIlll Lull

WUt1I4 tfhUJUII14 VlflHU iltll~ l-ll1 Inlltlvhllfhl~~1ltl1f11m1~ii~~ltl ~iJ J bull v~LuI1Mru rtll-lM1~i11Yl1~VIilN IIlltlUWYlbull11DtllIlJll fl UU1J161-ltl 1 II

11 MAIN INCOMING SWITCH BOARD 1~MIULft1YHh~L~rl1ifl1U1111 1210 B5l-l1l 6 UJl9lf 11111111 t9lJiI(fl-lfiIl1li4lJ~emllW1tnhlbJLiiU

lIl1lJnmiddothlllfl-lmJ1L~1 1lJ1lJill1lJLnIJ 10 L~WiiuJ11l7 ~Jl1)JUtjUN

l1fllltllilluflilslntlll1l4hlPi1l1fJlifl~Ui9l1li-tHl1t14f1~ L~1 iitl-lUltamphJVI~ ~ ~ ~tl ~ Vl1~I~fJlnUfll-l~~I1ntlltlWUi1ltl T3I1U 170middot200 wIl5 M~i~lI

SAFTY SWITCH lIUI1lniln1EiUpoundlnfl1Jii1UW MAIN INCOMING SWITCH

mil ~A ~ v ~J12 Iflltlll FUSE lU(Itll1lt11Uftl (TIME DElAYl lll~ffl1)1~13l11CUn1tfli1lll1

(INTERRUPTING CAPACITYll(11)1J6tJnh 10000 AMPERES SYMMETRICAL

UHz~tH~ AMPERE RATING lI1FI FUSE ~HYjnnnrrWLiitllIU11l AMPEREi

C LFI~~itl t l I iJ X ~I 113 Vl1nOlflVl~LnIJm1 1 OWITlJn 1 l-ll~Il~~Hillilfl-l l~rlJjHhtlfll JIl~1J1J

SAFTY SWITCH ~ FUSE ilEh~ct~ftil-lt~ LilUPllIj3i L~~lgtlpoundllltl1Pl AMPERE RATING ~tlj FUSE 11~J1~Jn1J LOAD lJ~WNlt9tltnlI1

rh~tJllN ~R1llliltlnUlyenl~l fJM nf1J 1ll7jIl~gt2olIli1~1nl1mfl1~iifi shy

1IIh1~til111unm1~nu~~Lfl1fltl1~tlUUlYhLill DISTRiBUTION BOARD klf- - shy

~fl~~~4tJP1l1lJ -u~~tl~~~~~~~ditl~fi~~~~~~Vi-~ci4~m1 ntl1~IINtJUU L~fJiJ~1~~Ii~1~tl~1L~~lnUn~~

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14 n1~1Jal11il1nlIl~l~WIll~~Pl1tl~-rV ~~ MAl N INCOMING SWITCH Uflt

1Iiiltl~J SAFTY SWITCH Ji~flFU$E 1lil-ll~ lniflfludlaltftl1 ~lIn(llll1l-ln)f

tvh~iuIAflljUUtJ C 1oIi1lllU1l UNDERGROUND CABLE NY( 1~lIil~ ~W

tilfJNfl)Jllii~vhLVtJ~nuwhj1 till uil 1I1111ll ~W~1oIuwiillYiUIvtfJ ~lru mmiddotuiWrht~whllU1lil AMPERE lI1ljI1-k~-rV tilMffllW~1nh 4 [1111-1

ij~fl3l1ll1 laquo~~ ttlUntl1l11~9I111-t1lW11ilti11i~1~1iH~UWiilmfJfl1Jtwh ()l1 4 iIflmiddotm11~Jgj1poundJn11lyj-Ml1M1oIell1 ~~jll1rltl LLflrlJdlflflllUvIl

ftltJft11111l1U(IlLflM1l1lJKIna (RIGID STEEL CONDUm ~flilfl~n1J01 n ~IltJn1LtllOLLftliltJ1fllhJ11(1)1 tTtJiI1Y1ltJ~1n m fl1l~ uft~l4Pia

ilfl19ri1lt~fUliltll1~~)e11U~I1~J~ln~l1li1iIl-l CLEVIS ~fll SECONDARY RACK 1l1JlltU 30 - 60 n~Wll1 tillJ~lfie-tmf1illlll1Eltlla

1~1l2Jl~ 150 WIIll Uflfl~~t1I11t1ilf1nfJ~ltf SERVICE ENTRANCE CAP -~- ______-- _-_ -- ~ - _ ~tl3Jflhl

15 f1l1L~U~1al1n SWITCH BOARD bJul LOAD 11ni11~~hJi~l~1ffl1tJ

lilfl~f~lWtl 14 rllU~fllVl1Jlt1WtJl~il~~fl ~1WviilreflftlfJrI-M1lOil

tfltlllJ~m~~~lJlUu 14 ~e llllt1l~ltJIlu~f)muJ1fl3Jnu (fll3J11a~~tIla~~n~l~~I~fl~~~t1lln)ri~W~ll~1~~u~UJ3JiI1~1~ fflJYifnlluWIlnW ~1tllf~WiiiutJ1l1jhiSnl1n~l~u~lJllillln~1 60

LoDWjUJ tL1llilsLAB llatJn1m14~fl~nut~ml1ltiI1~UII1ltDi f1 Jlflfilll lI1Il1l

Jl1ljfl1fJIt 1Iil~ II1~3Jn1J LOAD 1ll1l011114DW1Il1i11 f1~1ii 1I~fl 14

16 m~tJfl1t1111t1tlL~l1ftJhJ t1~91Ht~IJJitH1itl1fJlIibr STREET LIGHTbull

WIRE (TYPE RHI ~1tltfl1UililVl~~1ll~middothltiifJ 141il1f ~-1n1W 2 mru IKfln

Il1J1 fI~~Illftl lI1l-l illhMrilIlil-l ILIl14hi~ ~ n+1 2 11I111-1tiflibll LIl1

17 lfIl4ill3J1lIiriilI)~JIl~il CARTfliDGE FUSE lltl4rluintfiPil~I1~t1

l

23

1S mJilILtJnIll~~lolJl(aJuVl11lINmliJ tJl1 l1~L~um1r4fllUliil UVlU~~eriI~ lli~u~u dtl~n mtlutiltiiJU~ziht~Jr~1l1 ril ln11I11fl ((Jnf11IIJl fIu~~1 ttlVll til ~Wflittill1-laquoriIIVltfltitl m~tYI (11)lilU1lJ1lEJBinIl1lri-mUf011fJ Lt~i

lmfliflILlJn(q1flffltl WIRE JOINT l11fluJ1tl~tJltlf1t1i1ilvnIl1tllhJuuuliw ill~~ilflnfl LltllfuiftJliltlig~~Lt1u~1n1rolufl1Y1flJ~~t1t1 (INSULATING SEALING COMPOUND) tll~U1lJ~lJ TAPE lilll~mftJrrU

111Jv4jh~mflI1Vjn 1mh

19 1mtll-4JrhltJlJ O1JlPiflfl1 poundIfl~~JWl fJiI1iJ~CPifl fl1 E1YIl iiiuLlhntJ LtlftllOltl mtth

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192 GROUND ROD Iifl~tJuJil~IlllLL~-31ill1fllLLtl-ljlJih (COPPER bull w

CLAD) i~lrIiWlilU1J~)~Jdnfll~jUlfJn15S ih UOJ1lWUtm

n~16 t1 rell1lhUII~1~lflIL~~t~ntlllJK~na (HOT-DIP

GALVANIZED STEEL) ril~ LLI1i1litHilLlAUeh~lilmn1t3Jufllni1 51B

ih fjJ1lWUIlJn11 B ~1i1

193 n1111itlmmL~fllJiI1mNiiiuolJ GROUND ROD ffl~il1Ji71

GROUND ROD CLAMP 1111~Ilt1mru~1flnm1 tj~il1JPiutlflm~lN1 J 1t~ ~ 4~t ~

194 n111J1 ~IJ11t1JMill1111 ~I~lEH ~~~Pl fl JJ Ilfl~11111 III IIJ~1lYI 1ZflIhllJ~

~il~tlfl1t1t1til6-l GROUND ROD lINl11iiiJfln1mrUil~J SO bull J

bull ~~UtitlJI1 IYlllt~tlfll1~rJIl~lifltJ1nnlQntlnn~

196 mIIit)M~Ul1nH1t1J1Jt1rJ9iU1lIJOU iIltJ~UhJJI~tl~ ~If1~~WhJ

UtlEln+1 2 ~c)

110 lfflllllllnUtl1JLurfIHi11~il VOLTAGE DROP 1~1~ MAIN INCOMING

SWITCH BOARD nlJ-iJllM 1LUN41thhriu 2u1flLiIIl~rltlnlN

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I 1 ~I~111 nnlYl1~~fll~l~)1lf)~~fj1Jtt1JULtfi~~tlt llULlnml llmLifl m111

iIlSgth ~~lgt)J q] till poundI ~ iLlJ1Jl(~11 Ufl L~ J VI Iiil (1)gtl flfilruCItU LmI1hgtl 1

11101UftlIU1Vllll-lLft 1Vll4 LfllJ ~ 1 flhNh vh6 1J11 gt11 mH~1I iIYl~llEt

~11t11 flil Vl~tln11LLlj-lrJ~l111t1ft L ~Elf Il1l~lAJJ1~Yh LLl 1jUMnf LII~

SINGLE LINE DIAGRAM 1~m111Yl1Ufl11-1ftl11i11rJltt1tmW1l14ritJdln11 ~

lIill~n171yHh W1l T~Ill ~111 Sllii1ltJ n1J~11lvi4QUmrutLa m1llJn1til1Yiw 1

112 mtlHh~1l1VlflH l~~1~OUn11t111lln11~Vl~~~Unlnrlf11tJ1vjfh~mJ Vl1I-IftlgtlJh Lihm11liHrillWtJlln LLIl1vI~1 n~1~491n01111I-M 1UII~ ~ fl l-l ~rll L~ufhlii III ~Hi~11 ~1iI1 ri 1111 Tlllll1llJ1 ir1l fl1H roh u~U 1 tlgj

ViNtflJ~lflthgtl H1llf1iiJl~~fl~ii 8AlLASn JIill1lll 1 Vll-l 1n

nT)J vn~j~fJgtlUlaquofJlvi1 L jjU nlfYI Iilil Ill vi~d 1121 11 VI iiil1J-liPIphrh laquo~tl4~~h POWER FACTOR flfJllJ t1i1tlVllUJIIllflUlll

bull

~)J i11EltU~lltflll 11111 Lt~~ IIN IiflPl 1n1In1itit~ fn1Yl laquon~ru

na~tI-1nU4llrJLlUlJ~ltlL1hJ1l1ltJ1WlllgtlLtiI)J LUlfim~ru nli ~

ni~ EJlhIiq bfllIfLJJtI~gtl

i1 i1lllbf)~ l iJ gtJ r11111 i1liIM1rJlIRtJ L~e-rli1

nlilliljllllJlnuflnVllltNihfl~lvjYlV11wm11~mjtJ POWER bull

FACTOR hi~m~1 09 LAG Will i1l1~J1hjjll1li1l~1ljjlU~lJfllflll

fIHlbrmW~1 nrl1 05 MEGoHM

112 2 Vli1lfliJll1i11llllJlhW1l1ul1J~fIlJlll1ill~J~lt 1Mr)~~11JLl 2l1lt1

tlHhlLlIlfiZ i~UnlJ~l ~MiJlh~1n~l 05 MEG OHM

U23 I1Q1f1il1l1ll GROUND RESTSTANCE lI1l~nl~Ill1lfllPU Llviil~Iltli1li

iiIl10~1U11jLii 25 OHM

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2 tThftEl~ft141iiflltlUUflW1U yenl~1P1n~1llihLfl-lfl~1~lI1ti11ru~PiIl~J1j (hrutifNI~11jUUflniu1ti Jum liell11Y11lJIlWLPiUL~)YJnlll~ il4fll itutll~-3d

21 MAIN INCOMING SWITCH BOARD xlllulbJ~)lJ1lf1f1L1iWI~1llJnU 11 ~ J ~ lV I~ bull J ~ lJt 11 1-11flvnnl~~~YlIWlflVIlUIi m1lj lU~1LLU~I1I1j1lm IUnl1I1lfll

IttJLlntlI1ht-11nlfi

22 I1ftl-1H FUSE ~1lJ11VilafifJll~i~1u1l t2middot

ll ~tl J ~l 11oj23 lt10flllllUl-1lnUn11 1 NlT JHuU ~1lJ11JIllflEl(i)Yl1Z1lIHUlIil 13

j

ct ~ d

24 mni1lUtl1t111n0IillI1lDlUJlLllffWJIil1 tH MAIN INCOMING SWITCH llfl

ilitlttJal SAFTY SWITCH 1tl FUSE lItl4HI1VflJ 1mUUfi1f1i~iliu ~flJ

Lutn1tnutl7-lllhnlVl1u i~dju1tlvn lJ t1tlitfl poundIf1~ltlJ1ntllftl 4

WliVl1 ndluIl1a~~ultllUll n111ll NrnIlU1ln il 1Ii1UI~tN1JtlJIilllJtll

~ bullbull I ~ t J Ii I inll1nll1Ull~fl) UUU A MnJllUUl TW VlUI1~lJ1[1I11IWajllflllllJnlbil

lrlh1Ifth~U~1l AMPERE jJfl~ilifl4rill1 ~-l~ ~lJ~1iIUIlii1l~fl~WUllf)n-i1 ~ ~ t - Il1 I - ~ Jv 4 fIl1l-l~ flflUJIll1 ulI~I~lil-lLIIIlJfl1 fJ lJ Lm I1Utl1YllfI1l1llllB-4l~ 1 lI~I t

Iifl~lillJL~1jJWlV112 ~W1I110 ~Jil185 UJIlI1 1-11El 6 LJJfl1~li1rl ~U~Pl~l~

I CLEVIS tlUhlllkl-ll1~1n~1 SECONDARY RACK jJ1l4m1~YlrhlIm~N

30middot 60 loitlelUJlIl1 llilpoundlltiltffregmiddotwiltluf11t1fl1atoyenU1tJ1N 160 UJ911 rilLInll

I~Utl1t1~ll~l ~1l1atUlVlTWI ~tNt-nfllllllil1l iIil-l n 1~Hh LI1I1V1ftNltUtJ

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fl~n~ IRIGID STEEL CONDUIT) tlI1U~1l1i1U1l~ll1fJItlnilWllJPI~YII

rMfuA1t1~tIlJil1ml1~l~fl)IJJ(lti ENtRANCE CAP

26 mfL~lJl1tll1n SWITCH BOARD tueT-l LOAD I~eiluhJIJ11jJrlfj ~ 11 Ji I ~ l

rZlalflll bUlIil 15 Yl4U MlJrImiddota1lEJIlUIUlJUfJltliIlU~IlEJ

2~ mnitl1un1fJ1Ulfl1~ultJu41ilHLfl~~~lil~mftlgtlLLI1~IOll1tlm)J1tJ fltL~~fIlUfa 16

26

27 M~~raquo~jt1l~minmltllllliiP1llliJifl~3j CARTRIDG E FUSE Llh~middothllnlJ 8 17 ehutfl~~~ll111 rnlllJ 1~1~~FllIiWItifltlUPIJ1~Jfl2ltJ1U1n Wlnu 10 ~bull~ ~1 1 I~~ tvlJil CARTRIDGE FUSE l-t1e CIRCUIT BREAKER

111)1) ~ lJl-lluvi1Utl-l~~Ejnu 28 n111ia LltlmlJtJ~tHi1IJJlJ ~fBN111flJt~tlnw1liUlt f) rlU~ 18 AlU

lU1lt~tl~lHUfl ~J I-l1~~Ln1tJrll-ltfrNf~Wlll~Yi1U Ilill~lIitltUOfllN ~ ~

tflfl1lJlf~nfl (CONNECTION BOX) lIill1lilllnWu1L~h~lilthuu LI1l2ltrt bull J 4 11 ~ 1 I_

fltllUl n~11l11 111 WIRE JOINT SIllfjJfl~VIl ~1lllUPljJU l-t7poundluUUuUmI

L1tHililn~ LLft)UliUliltliI~~tih~1 ~tlrnfJU~1lfuli~H11 tI

(INSULATING SEALING COMPOUND) ILfl~Uyjlllill TAPE IIiWtlhl1nnfu

fIltllri~1ttMIIl1lln 1 Ull~ ~ft)+tJrl tlil11ilyjlhDll~ntilllnlJt~flh~ llfl~Il)nUlvrfJI~lJVPl~laRIGID CLAMP llll RIGID CLAMP BACK middotflfI

vlllnuillNfiTl-Ul ll1ulllUYjntRl- (EXANSION Bom dll-lfUfltYllIJ

fl~m11il1~tor BOLT AND NUT yfiJ)IltW)1Jnjflfll2lhfufI~I1IJ~n

tg)tJM~ua tIllwfflz4J1liha)h~ flUWlnunltj1 50 L4u~ rtI Pl1

29 lIlllM91lht~lJlJmtriflfllJIN~umiddothllilu1t1~1lJ11~flLliltJ~r1l171uffj 19191192193 194l11 196

210 VOLTAGE DROP ~11u1tlIll1lJ1lJilI~ltIl~1~lnuftl 110

211 011JI1ln1ll~I~1ill4Jil1Juuulw~rl1UtllflUMlflLI11P1lllilf111l11uoffEJ

111 t~nulvHh1JPrnfll~lrt1tnillJnlfMllltllJ~)l

112 n1r lYlihlll nllll~I phlilUn11jllj~J~ftflUIlI1ll11tJfilfIilflvltL1rhfie

11211211122 Ul 1123

3 rilll1Y1wmJM~1lllnJl11lJ Uft1I1IildhfJ I-1SJltJOIt 1ruUlrl-MlUtil

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tt~l~fi1MfteINihfJUflmlaquoutl1-lvh-l 1 iJ~lLLUh~d

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31 MAIN INCOMNG SWiTCH BOARD li-YLUWttJ~ll1r1JIlIL~Eli1l~1lJ1U~~ 11 r-

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) 32 n1Tloft fUSE ~dj1amphJIn1wmJlL~ICl~rlJ1llolrl 12 i

1 ~ i- ~ 0J

) 33 1A1fllJli1lI1l)lnUm1 1 ~I mthHtl~nm1tlilltlfJt1lmlJlnuiitl 13 ~ J_

34 n11LMU~lallnj1)Ill(Il1lPllLIl1lJVl1 01 MAININCOMING SWITCH ttlZ

IiitlhJ~~ SAFTY SWITCH 11l FUSE ll1l~NI1rlfla~1i~lJ 1 Vjn111l x~ilUhj lJI

P113-11UlflLJ tl6iYl1tJ tUlJ1l 24

36 n11i~USlfl9ln MAiN INCOMiNG SWITCH BOARD 1tltT~ LOAD 1A1nerlilf

~UllaquoliluhJumn1pound1Ii1aj1)~-llmW1ill 15bull

36 n11L~Uf11JlmJhlt~1tll~~~ LUWtflgt11~lil1J1tl111w11a111ilrt~ 1~tMlu ~il 16

)-llriillllllfl+JLlrm PHASE JJMn1In91LtllflJ~11i1iili CARTRIDGE

FUSE ilfl~nU n1ffil~~JU

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lltJ 1llVlYl1ftlltn11f1tl N VlUlutHujFJ1-J nUfttLIJ EJj1)Y1 11j bhUlJfl 19 191

192 193 194 LIS 195

310 VOLTAGE DROP dJ1j1um~11tJlILfl[Ji11~j1jlul1l 110

311 nilJm~Vlfll-l~tir1l ~)jtltJllUU1W~IJ 1Jlnm1 ~~11l1ilmriruullYlriEl

hl t~Ji1ntll1l~tJtlrn~~rliltdfil 111 ~n11hl~1JllmflJHtlnntlu mi3I)9DUffl1lEJ

312 rntIYl1UflnlilW~tlhiilWn1lIij1ll~fl1l1il1)J rJfJlliiiaVl~jtjnUfil 112

11211122 LUI 1123

28

IlU1Jl~lilol~iVl n1mfl~Il~1Il~1lfuf1fJ~IJL~Ulu nlLfiQ~qflri~IIIfufl1~Liu1u

lln1I1U~Uln~1fl11 (Free air) vi~i1lmJUi)1m7

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1225 18 bull 4 27 16

6 36 22

10 60 30

bullbull 16 6076 i

ij25 96 64 d

36 119 79 ~ ~ 16060 102 ~ Iii

70 188 121 l

~ i 96 231 160 i

I 170 ~268120

dbull

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bull Na 86W 108 Watt

135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

bull 1OOOW 1043 Watt

9 fIl 1W-7tJNIIIJfiltJltilltllli~ 1iifl~1tnlfHtltll fI

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Page 24: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

19

bull

5 Payment

51 The lump sum payment for the street lighting installation shall be full compensation

for furnishing ell materials labour equipment tools supervisiorl testing and incidentals

neossary to complete the work inoluding any necessary backfill foundations restoration

of footwalk roadway curbing and appurtenances damaged or destroyed during

construction The payment shall also cover the cost of design where this Is called for

The ILlmp sum paymEmt shall be deemed to include full compensation for

all additional materials and work not shown on Ihe Drawings or specified which are

nesessary to complete the installation

62 The work measured as provided in 42 shall be paid at Ihe contraot unit price for eacl1

item such price and payment constituting flln compensation for aU materials labour

equipment tools and incidentals nseded to complete the work All materials Bnd work

necessaJY for satisfactory completion of the installation which are not specifically

mentioned in the Bilt of quantities shall be deemed to be included in the items shown

corw~ors 6 Information to be supplied by bidtfelS

61 catalogs at electrioal components lanterns ballast etc

62 Plans and circuit diagrams ground rod connection diagram

S3 Photometric data

631 Utilisation Curve

632 Isoc8ndala diagram bull

633 Horizon~81 isofootcandle diagram

634 Polar light distribution curvs

64 Cataisl of columns BraCKets Base Plates concrete foundations

20

7 Other details of steel columms not mentioned above should comply with British

Standard 1840 1960 The decision shall be made by the Department

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IJftl tIhl1JUII1lf1j~ILfl CltlUlIi1-l 1 ~Yl1UYjI11lilll Ift1YlnqJ qJ1 ru~11 LLftYltlfl~ih JJIlbullI 1 ~ IIfVlllJUfllUlJJmfltJJfl4fr1llMIM LI~CltlJmiddotMil~1J tliI-l71fJ~if)JVlIlll Lull

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11 MAIN INCOMING SWITCH BOARD 1~MIULft1YHh~L~rl1ifl1U1111 1210 B5l-l1l 6 UJl9lf 11111111 t9lJiI(fl-lfiIl1li4lJ~emllW1tnhlbJLiiU

lIl1lJnmiddothlllfl-lmJ1L~1 1lJ1lJill1lJLnIJ 10 L~WiiuJ11l7 ~Jl1)JUtjUN

l1fllltllilluflilslntlll1l4hlPi1l1fJlifl~Ui9l1li-tHl1t14f1~ L~1 iitl-lUltamphJVI~ ~ ~ ~tl ~ Vl1~I~fJlnUfll-l~~I1ntlltlWUi1ltl T3I1U 170middot200 wIl5 M~i~lI

SAFTY SWITCH lIUI1lniln1EiUpoundlnfl1Jii1UW MAIN INCOMING SWITCH

mil ~A ~ v ~J12 Iflltlll FUSE lU(Itll1lt11Uftl (TIME DElAYl lll~ffl1)1~13l11CUn1tfli1lll1

(INTERRUPTING CAPACITYll(11)1J6tJnh 10000 AMPERES SYMMETRICAL

UHz~tH~ AMPERE RATING lI1FI FUSE ~HYjnnnrrWLiitllIU11l AMPEREi

C LFI~~itl t l I iJ X ~I 113 Vl1nOlflVl~LnIJm1 1 OWITlJn 1 l-ll~Il~~Hillilfl-l l~rlJjHhtlfll JIl~1J1J

SAFTY SWITCH ~ FUSE ilEh~ct~ftil-lt~ LilUPllIj3i L~~lgtlpoundllltl1Pl AMPERE RATING ~tlj FUSE 11~J1~Jn1J LOAD lJ~WNlt9tltnlI1

rh~tJllN ~R1llliltlnUlyenl~l fJM nf1J 1ll7jIl~gt2olIli1~1nl1mfl1~iifi shy

1IIh1~til111unm1~nu~~Lfl1fltl1~tlUUlYhLill DISTRiBUTION BOARD klf- - shy

~fl~~~4tJP1l1lJ -u~~tl~~~~~~~ditl~fi~~~~~~Vi-~ci4~m1 ntl1~IINtJUU L~fJiJ~1~~Ii~1~tl~1L~~lnUn~~

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1Iiiltl~J SAFTY SWITCH Ji~flFU$E 1lil-ll~ lniflfludlaltftl1 ~lIn(llll1l-ln)f

tvh~iuIAflljUUtJ C 1oIi1lllU1l UNDERGROUND CABLE NY( 1~lIil~ ~W

tilfJNfl)Jllii~vhLVtJ~nuwhj1 till uil 1I1111ll ~W~1oIuwiillYiUIvtfJ ~lru mmiddotuiWrht~whllU1lil AMPERE lI1ljI1-k~-rV tilMffllW~1nh 4 [1111-1

ij~fl3l1ll1 laquo~~ ttlUntl1l11~9I111-t1lW11ilti11i~1~1iH~UWiilmfJfl1Jtwh ()l1 4 iIflmiddotm11~Jgj1poundJn11lyj-Ml1M1oIell1 ~~jll1rltl LLflrlJdlflflllUvIl

ftltJft11111l1U(IlLflM1l1lJKIna (RIGID STEEL CONDUm ~flilfl~n1J01 n ~IltJn1LtllOLLftliltJ1fllhJ11(1)1 tTtJiI1Y1ltJ~1n m fl1l~ uft~l4Pia

ilfl19ri1lt~fUliltll1~~)e11U~I1~J~ln~l1li1iIl-l CLEVIS ~fll SECONDARY RACK 1l1JlltU 30 - 60 n~Wll1 tillJ~lfie-tmf1illlll1Eltlla

1~1l2Jl~ 150 WIIll Uflfl~~t1I11t1ilf1nfJ~ltf SERVICE ENTRANCE CAP -~- ______-- _-_ -- ~ - _ ~tl3Jflhl

15 f1l1L~U~1al1n SWITCH BOARD bJul LOAD 11ni11~~hJi~l~1ffl1tJ

lilfl~f~lWtl 14 rllU~fllVl1Jlt1WtJl~il~~fl ~1WviilreflftlfJrI-M1lOil

tfltlllJ~m~~~lJlUu 14 ~e llllt1l~ltJIlu~f)muJ1fl3Jnu (fll3J11a~~tIla~~n~l~~I~fl~~~t1lln)ri~W~ll~1~~u~UJ3JiI1~1~ fflJYifnlluWIlnW ~1tllf~WiiiutJ1l1jhiSnl1n~l~u~lJllillln~1 60

LoDWjUJ tL1llilsLAB llatJn1m14~fl~nut~ml1ltiI1~UII1ltDi f1 Jlflfilll lI1Il1l

Jl1ljfl1fJIt 1Iil~ II1~3Jn1J LOAD 1ll1l011114DW1Il1i11 f1~1ii 1I~fl 14

16 m~tJfl1t1111t1tlL~l1ftJhJ t1~91Ht~IJJitH1itl1fJlIibr STREET LIGHTbull

WIRE (TYPE RHI ~1tltfl1UililVl~~1ll~middothltiifJ 141il1f ~-1n1W 2 mru IKfln

Il1J1 fI~~Illftl lI1l-l illhMrilIlil-l ILIl14hi~ ~ n+1 2 11I111-1tiflibll LIl1

17 lfIl4ill3J1lIiriilI)~JIl~il CARTfliDGE FUSE lltl4rluintfiPil~I1~t1

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23

1S mJilILtJnIll~~lolJl(aJuVl11lINmliJ tJl1 l1~L~um1r4fllUliil UVlU~~eriI~ lli~u~u dtl~n mtlutiltiiJU~ziht~Jr~1l1 ril ln11I11fl ((Jnf11IIJl fIu~~1 ttlVll til ~Wflittill1-laquoriIIVltfltitl m~tYI (11)lilU1lJ1lEJBinIl1lri-mUf011fJ Lt~i

lmfliflILlJn(q1flffltl WIRE JOINT l11fluJ1tl~tJltlf1t1i1ilvnIl1tllhJuuuliw ill~~ilflnfl LltllfuiftJliltlig~~Lt1u~1n1rolufl1Y1flJ~~t1t1 (INSULATING SEALING COMPOUND) tll~U1lJ~lJ TAPE lilll~mftJrrU

111Jv4jh~mflI1Vjn 1mh

19 1mtll-4JrhltJlJ O1JlPiflfl1 poundIfl~~JWl fJiI1iJ~CPifl fl1 E1YIl iiiuLlhntJ LtlftllOltl mtth

fltln1nnwh~~1~llltil~~nllQtl (111 lil1nJfi1fl1v1 ~lll~~~~UAU ~ nelll~tll ~n~iiiil~u~-3111Yl[ ei1 LLfI~ltJtfl1l 1 fl 1 ~4il11Jft~l~tJpoundIlPi1ltlld 191 rl~1U~Ullifl411hfl1JVlMIIPl~il~J~1ihrIi111~1nh 16 ITI UU

192 GROUND ROD Iifl~tJuJil~IlllLL~-31ill1fllLLtl-ljlJih (COPPER bull w

CLAD) i~lrIiWlilU1J~)~Jdnfll~jUlfJn15S ih UOJ1lWUtm

n~16 t1 rell1lhUII~1~lflIL~~t~ntlllJK~na (HOT-DIP

GALVANIZED STEEL) ril~ LLI1i1litHilLlAUeh~lilmn1t3Jufllni1 51B

ih fjJ1lWUIlJn11 B ~1i1

193 n1111itlmmL~fllJiI1mNiiiuolJ GROUND ROD ffl~il1Ji71

GROUND ROD CLAMP 1111~Ilt1mru~1flnm1 tj~il1JPiutlflm~lN1 J 1t~ ~ 4~t ~

194 n111J1 ~IJ11t1JMill1111 ~I~lEH ~~~Pl fl JJ Ilfl~11111 III IIJ~1lYI 1ZflIhllJ~

~il~tlfl1t1t1til6-l GROUND ROD lINl11iiiJfln1mrUil~J SO bull J

bull ~~UtitlJI1 IYlllt~tlfll1~rJIl~lifltJ1nnlQntlnn~

196 mIIit)M~Ul1nH1t1J1Jt1rJ9iU1lIJOU iIltJ~UhJJI~tl~ ~If1~~WhJ

UtlEln+1 2 ~c)

110 lfflllllllnUtl1JLurfIHi11~il VOLTAGE DROP 1~1~ MAIN INCOMING

SWITCH BOARD nlJ-iJllM 1LUN41thhriu 2u1flLiIIl~rltlnlN

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11101UftlIU1Vllll-lLft 1Vll4 LfllJ ~ 1 flhNh vh6 1J11 gt11 mH~1I iIYl~llEt

~11t11 flil Vl~tln11LLlj-lrJ~l111t1ft L ~Elf Il1l~lAJJ1~Yh LLl 1jUMnf LII~

SINGLE LINE DIAGRAM 1~m111Yl1Ufl11-1ftl11i11rJltt1tmW1l14ritJdln11 ~

lIill~n171yHh W1l T~Ill ~111 Sllii1ltJ n1J~11lvi4QUmrutLa m1llJn1til1Yiw 1

112 mtlHh~1l1VlflH l~~1~OUn11t111lln11~Vl~~~Unlnrlf11tJ1vjfh~mJ Vl1I-IftlgtlJh Lihm11liHrillWtJlln LLIl1vI~1 n~1~491n01111I-M 1UII~ ~ fl l-l ~rll L~ufhlii III ~Hi~11 ~1iI1 ri 1111 Tlllll1llJ1 ir1l fl1H roh u~U 1 tlgj

ViNtflJ~lflthgtl H1llf1iiJl~~fl~ii 8AlLASn JIill1lll 1 Vll-l 1n

nT)J vn~j~fJgtlUlaquofJlvi1 L jjU nlfYI Iilil Ill vi~d 1121 11 VI iiil1J-liPIphrh laquo~tl4~~h POWER FACTOR flfJllJ t1i1tlVllUJIIllflUlll

bull

~)J i11EltU~lltflll 11111 Lt~~ IIN IiflPl 1n1In1itit~ fn1Yl laquon~ru

na~tI-1nU4llrJLlUlJ~ltlL1hJ1l1ltJ1WlllgtlLtiI)J LUlfim~ru nli ~

ni~ EJlhIiq bfllIfLJJtI~gtl

i1 i1lllbf)~ l iJ gtJ r11111 i1liIM1rJlIRtJ L~e-rli1

nlilliljllllJlnuflnVllltNihfl~lvjYlV11wm11~mjtJ POWER bull

FACTOR hi~m~1 09 LAG Will i1l1~J1hjjll1li1l~1ljjlU~lJfllflll

fIHlbrmW~1 nrl1 05 MEGoHM

112 2 Vli1lfliJll1i11llllJlhW1l1ul1J~fIlJlll1ill~J~lt 1Mr)~~11JLl 2l1lt1

tlHhlLlIlfiZ i~UnlJ~l ~MiJlh~1n~l 05 MEG OHM

U23 I1Q1f1il1l1ll GROUND RESTSTANCE lI1l~nl~Ill1lfllPU Llviil~Iltli1li

iiIl10~1U11jLii 25 OHM

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21 MAIN INCOMING SWITCH BOARD xlllulbJ~)lJ1lf1f1L1iWI~1llJnU 11 ~ J ~ lV I~ bull J ~ lJt 11 1-11flvnnl~~~YlIWlflVIlUIi m1lj lU~1LLU~I1I1j1lm IUnl1I1lfll

IttJLlntlI1ht-11nlfi

22 I1ftl-1H FUSE ~1lJ11VilafifJll~i~1u1l t2middot

ll ~tl J ~l 11oj23 lt10flllllUl-1lnUn11 1 NlT JHuU ~1lJ11JIllflEl(i)Yl1Z1lIHUlIil 13

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24 mni1lUtl1t111n0IillI1lDlUJlLllffWJIil1 tH MAIN INCOMING SWITCH llfl

ilitlttJal SAFTY SWITCH 1tl FUSE lItl4HI1VflJ 1mUUfi1f1i~iliu ~flJ

Lutn1tnutl7-lllhnlVl1u i~dju1tlvn lJ t1tlitfl poundIf1~ltlJ1ntllftl 4

WliVl1 ndluIl1a~~ultllUll n111ll NrnIlU1ln il 1Ii1UI~tN1JtlJIilllJtll

~ bullbull I ~ t J Ii I inll1nll1Ull~fl) UUU A MnJllUUl TW VlUI1~lJ1[1I11IWajllflllllJnlbil

lrlh1Ifth~U~1l AMPERE jJfl~ilifl4rill1 ~-l~ ~lJ~1iIUIlii1l~fl~WUllf)n-i1 ~ ~ t - Il1 I - ~ Jv 4 fIl1l-l~ flflUJIll1 ulI~I~lil-lLIIIlJfl1 fJ lJ Lm I1Utl1YllfI1l1llllB-4l~ 1 lI~I t

Iifl~lillJL~1jJWlV112 ~W1I110 ~Jil185 UJIlI1 1-11El 6 LJJfl1~li1rl ~U~Pl~l~

I CLEVIS tlUhlllkl-ll1~1n~1 SECONDARY RACK jJ1l4m1~YlrhlIm~N

30middot 60 loitlelUJlIl1 llilpoundlltiltffregmiddotwiltluf11t1fl1atoyenU1tJ1N 160 UJ911 rilLInll

I~Utl1t1~ll~l ~1l1atUlVlTWI ~tNt-nfllllllil1l iIil-l n 1~Hh LI1I1V1ftNltUtJ

l) - ~ ~_UI yC M1flllUlltlU~1jJNiUJUPllvnllujJnu L(1jU IUVlfl1fl2Jtl1 tI nnf1lt1l111 fl1iI1)1U I

fl~n~ IRIGID STEEL CONDUIT) tlI1U~1l1i1U1l~ll1fJItlnilWllJPI~YII

rMfuA1t1~tIlJil1ml1~l~fl)IJJ(lti ENtRANCE CAP

26 mfL~lJl1tll1n SWITCH BOARD tueT-l LOAD I~eiluhJIJ11jJrlfj ~ 11 Ji I ~ l

rZlalflll bUlIil 15 Yl4U MlJrImiddota1lEJIlUIUlJUfJltliIlU~IlEJ

2~ mnitl1un1fJ1Ulfl1~ultJu41ilHLfl~~~lil~mftlgtlLLI1~IOll1tlm)J1tJ fltL~~fIlUfa 16

26

27 M~~raquo~jt1l~minmltllllliiP1llliJifl~3j CARTRIDG E FUSE Llh~middothllnlJ 8 17 ehutfl~~~ll111 rnlllJ 1~1~~FllIiWItifltlUPIJ1~Jfl2ltJ1U1n Wlnu 10 ~bull~ ~1 1 I~~ tvlJil CARTRIDGE FUSE l-t1e CIRCUIT BREAKER

111)1) ~ lJl-lluvi1Utl-l~~Ejnu 28 n111ia LltlmlJtJ~tHi1IJJlJ ~fBN111flJt~tlnw1liUlt f) rlU~ 18 AlU

lU1lt~tl~lHUfl ~J I-l1~~Ln1tJrll-ltfrNf~Wlll~Yi1U Ilill~lIitltUOfllN ~ ~

tflfl1lJlf~nfl (CONNECTION BOX) lIill1lilllnWu1L~h~lilthuu LI1l2ltrt bull J 4 11 ~ 1 I_

fltllUl n~11l11 111 WIRE JOINT SIllfjJfl~VIl ~1lllUPljJU l-t7poundluUUuUmI

L1tHililn~ LLft)UliUliltliI~~tih~1 ~tlrnfJU~1lfuli~H11 tI

(INSULATING SEALING COMPOUND) ILfl~Uyjlllill TAPE IIiWtlhl1nnfu

fIltllri~1ttMIIl1lln 1 Ull~ ~ft)+tJrl tlil11ilyjlhDll~ntilllnlJt~flh~ llfl~Il)nUlvrfJI~lJVPl~laRIGID CLAMP llll RIGID CLAMP BACK middotflfI

vlllnuillNfiTl-Ul ll1ulllUYjntRl- (EXANSION Bom dll-lfUfltYllIJ

fl~m11il1~tor BOLT AND NUT yfiJ)IltW)1Jnjflfll2lhfufI~I1IJ~n

tg)tJM~ua tIllwfflz4J1liha)h~ flUWlnunltj1 50 L4u~ rtI Pl1

29 lIlllM91lht~lJlJmtriflfllJIN~umiddothllilu1t1~1lJ11~flLliltJ~r1l171uffj 19191192193 194l11 196

210 VOLTAGE DROP ~11u1tlIll1lJ1lJilI~ltIl~1~lnuftl 110

211 011JI1ln1ll~I~1ill4Jil1Juuulw~rl1UtllflUMlflLI11P1lllilf111l11uoffEJ

111 t~nulvHh1JPrnfll~lrt1tnillJnlfMllltllJ~)l

112 n1r lYlihlll nllll~I phlilUn11jllj~J~ftflUIlI1ll11tJfilfIilflvltL1rhfie

11211211122 Ul 1123

3 rilll1Y1wmJM~1lllnJl11lJ Uft1I1IildhfJ I-1SJltJOIt 1ruUlrl-MlUtil

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tt~l~fi1MfteINihfJUflmlaquoutl1-lvh-l 1 iJ~lLLUh~d

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31 MAIN INCOMNG SWiTCH BOARD li-YLUWttJ~ll1r1JIlIL~Eli1l~1lJ1U~~ 11 r-

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) 32 n1Tloft fUSE ~dj1amphJIn1wmJlL~ICl~rlJ1llolrl 12 i

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) 33 1A1fllJli1lI1l)lnUm1 1 ~I mthHtl~nm1tlilltlfJt1lmlJlnuiitl 13 ~ J_

34 n11LMU~lallnj1)Ill(Il1lPllLIl1lJVl1 01 MAININCOMING SWITCH ttlZ

IiitlhJ~~ SAFTY SWITCH 11l FUSE ll1l~NI1rlfla~1i~lJ 1 Vjn111l x~ilUhj lJI

P113-11UlflLJ tl6iYl1tJ tUlJ1l 24

36 n11i~USlfl9ln MAiN INCOMiNG SWITCH BOARD 1tltT~ LOAD 1A1nerlilf

~UllaquoliluhJumn1pound1Ii1aj1)~-llmW1ill 15bull

36 n11L~Uf11JlmJhlt~1tll~~~ LUWtflgt11~lil1J1tl111w11a111ilrt~ 1~tMlu ~il 16

)-llriillllllfl+JLlrm PHASE JJMn1In91LtllflJ~11i1iili CARTRIDGE

FUSE ilfl~nU n1ffil~~JU

nmll~1auemrlll lLl-Iull1flNl1tilla11Xt1J-u 111 1 -I 11tml1i1a~~lJHhdftl

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lltJ 1llVlYl1ftlltn11f1tl N VlUlutHujFJ1-J nUfttLIJ EJj1)Y1 11j bhUlJfl 19 191

192 193 194 LIS 195

310 VOLTAGE DROP dJ1j1um~11tJlILfl[Ji11~j1jlul1l 110

311 nilJm~Vlfll-l~tir1l ~)jtltJllUU1W~IJ 1Jlnm1 ~~11l1ilmriruullYlriEl

hl t~Ji1ntll1l~tJtlrn~~rliltdfil 111 ~n11hl~1JllmflJHtlnntlu mi3I)9DUffl1lEJ

312 rntIYl1UflnlilW~tlhiilWn1lIij1ll~fl1l1il1)J rJfJlliiiaVl~jtjnUfil 112

11211122 LUI 1123

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IlU1Jl~lilol~iVl n1mfl~Il~1Il~1lfuf1fJ~IJL~Ulu nlLfiQ~qflri~IIIfufl1~Liu1u

lln1I1U~Uln~1fl11 (Free air) vi~i1lmJUi)1m7

LlfI~Utlf~ttUJuufII~ 05 3-

10 10 6bull 16 813 I

1225 18 bull 4 27 16

6 36 22

10 60 30

bullbull 16 6076 i

ij25 96 64 d

36 119 79 ~ ~ 16060 102 ~ Iii

70 188 121 l

~ i 96 231 160 i

I 170 ~268120

dbull

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bull Na 86W 108 Watt

135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

bull 1OOOW 1043 Watt

9 fIl 1W-7tJNIIIJfiltJltilltllli~ 1iifl~1tnlfHtltll fI

I ~ Ili~n1 tn1l flh~uA)llf-lfllJlru~ImiiIiiIillll 1l-lI~ fJI-I1tJ 1iflYl1ll1Jln1r ~f1J

l J JIJ J 11_ Z ll~IHfl1MWflI1nl Vl1 n11na114WlllfJ~ft LOt InlJ~ l1l1tIAu IJ 1flP11 ~ 1 IJfll~Ifl~ rua~1Il1l1um)JL~tJ~1JlIf11 ~il111lnlll~Iml~~fl1ll11~t1U1f1VllhrlA LlflahJ11nn bull Ioi K_ It 1I j ~

It l1o1l1~ft1f11lfdLJJlfl~1-l 1 ni1l~l1 mlnltll1J VI1JUUU1VJjJ1ll~ru~1-lVll(Il1~UUm(iVl

I PltllTulnll N1Uoil-l 1 ~1l n1~~t1tlUbfl~~U~1 CJ tLf1limmil0Igtl11l rfn fI11lt11~nn1J~~mll

L t~J hIfgtlj1JtUn11ph Lilm1~ltlVlIJ IIlLUUIN~fUJf1- ltlllWUltl~~tJ)

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llU~~Upjt)u~~rumnsnl1~llnH1tlttillliltvl-M1tlell el~1jjl 11111 IflfJLiIyeni11f1l

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QtInmJfI LlIIUn1tVll1lvl-l1lU l11~1-lIJUlYltllftl~mkPl J6 ItlflW uan1J UfJllfllUVloII

Ol mnJrri1A nlUnnJ+ItfleHllvlrh Ll~~ellIJamplPl~~~ ow ) Lg1lIJ I)ru111Vlfl~ ~MM~ ~-lUitJUJfnJUll~l~L1t1U~fJiIIU~M11t~))l1t11t1Ll11 24 tlbJ~UUiollLLP)L)fl1~JuU(

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Page 25: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

20

7 Other details of steel columms not mentioned above should comply with British

Standard 1840 1960 The decision shall be made by the Department

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bull

e iilIlUt111i1017jjJlt~il1jnnJW1LLMIIi1gtl111f1itu 4tf)lJtIl1drlihj~~1fim nL~PJtu ~Utj~lltl-3lt5~l~1lmIIllJtun1t~lIl~ll1Jhj~ 1

IJftl tIhl1JUII1lf1j~ILfl CltlUlIi1-l 1 ~Yl1UYjI11lilll Ift1YlnqJ qJ1 ru~11 LLftYltlfl~ih JJIlbullI 1 ~ IIfVlllJUfllUlJJmfltJJfl4fr1llMIM LI~CltlJmiddotMil~1J tliI-l71fJ~if)JVlIlll Lull

WUt1I4 tfhUJUII14 VlflHU iltll~ l-ll1 Inlltlvhllfhl~~1ltl1f11m1~ii~~ltl ~iJ J bull v~LuI1Mru rtll-lM1~i11Yl1~VIilN IIlltlUWYlbull11DtllIlJll fl UU1J161-ltl 1 II

11 MAIN INCOMING SWITCH BOARD 1~MIULft1YHh~L~rl1ifl1U1111 1210 B5l-l1l 6 UJl9lf 11111111 t9lJiI(fl-lfiIl1li4lJ~emllW1tnhlbJLiiU

lIl1lJnmiddothlllfl-lmJ1L~1 1lJ1lJill1lJLnIJ 10 L~WiiuJ11l7 ~Jl1)JUtjUN

l1fllltllilluflilslntlll1l4hlPi1l1fJlifl~Ui9l1li-tHl1t14f1~ L~1 iitl-lUltamphJVI~ ~ ~ ~tl ~ Vl1~I~fJlnUfll-l~~I1ntlltlWUi1ltl T3I1U 170middot200 wIl5 M~i~lI

SAFTY SWITCH lIUI1lniln1EiUpoundlnfl1Jii1UW MAIN INCOMING SWITCH

mil ~A ~ v ~J12 Iflltlll FUSE lU(Itll1lt11Uftl (TIME DElAYl lll~ffl1)1~13l11CUn1tfli1lll1

(INTERRUPTING CAPACITYll(11)1J6tJnh 10000 AMPERES SYMMETRICAL

UHz~tH~ AMPERE RATING lI1FI FUSE ~HYjnnnrrWLiitllIU11l AMPEREi

C LFI~~itl t l I iJ X ~I 113 Vl1nOlflVl~LnIJm1 1 OWITlJn 1 l-ll~Il~~Hillilfl-l l~rlJjHhtlfll JIl~1J1J

SAFTY SWITCH ~ FUSE ilEh~ct~ftil-lt~ LilUPllIj3i L~~lgtlpoundllltl1Pl AMPERE RATING ~tlj FUSE 11~J1~Jn1J LOAD lJ~WNlt9tltnlI1

rh~tJllN ~R1llliltlnUlyenl~l fJM nf1J 1ll7jIl~gt2olIli1~1nl1mfl1~iifi shy

1IIh1~til111unm1~nu~~Lfl1fltl1~tlUUlYhLill DISTRiBUTION BOARD klf- - shy

~fl~~~4tJP1l1lJ -u~~tl~~~~~~~ditl~fi~~~~~~Vi-~ci4~m1 ntl1~IINtJUU L~fJiJ~1~~Ii~1~tl~1L~~lnUn~~

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14 n1~1Jal11il1nlIl~l~WIll~~Pl1tl~-rV ~~ MAl N INCOMING SWITCH Uflt

1Iiiltl~J SAFTY SWITCH Ji~flFU$E 1lil-ll~ lniflfludlaltftl1 ~lIn(llll1l-ln)f

tvh~iuIAflljUUtJ C 1oIi1lllU1l UNDERGROUND CABLE NY( 1~lIil~ ~W

tilfJNfl)Jllii~vhLVtJ~nuwhj1 till uil 1I1111ll ~W~1oIuwiillYiUIvtfJ ~lru mmiddotuiWrht~whllU1lil AMPERE lI1ljI1-k~-rV tilMffllW~1nh 4 [1111-1

ij~fl3l1ll1 laquo~~ ttlUntl1l11~9I111-t1lW11ilti11i~1~1iH~UWiilmfJfl1Jtwh ()l1 4 iIflmiddotm11~Jgj1poundJn11lyj-Ml1M1oIell1 ~~jll1rltl LLflrlJdlflflllUvIl

ftltJft11111l1U(IlLflM1l1lJKIna (RIGID STEEL CONDUm ~flilfl~n1J01 n ~IltJn1LtllOLLftliltJ1fllhJ11(1)1 tTtJiI1Y1ltJ~1n m fl1l~ uft~l4Pia

ilfl19ri1lt~fUliltll1~~)e11U~I1~J~ln~l1li1iIl-l CLEVIS ~fll SECONDARY RACK 1l1JlltU 30 - 60 n~Wll1 tillJ~lfie-tmf1illlll1Eltlla

1~1l2Jl~ 150 WIIll Uflfl~~t1I11t1ilf1nfJ~ltf SERVICE ENTRANCE CAP -~- ______-- _-_ -- ~ - _ ~tl3Jflhl

15 f1l1L~U~1al1n SWITCH BOARD bJul LOAD 11ni11~~hJi~l~1ffl1tJ

lilfl~f~lWtl 14 rllU~fllVl1Jlt1WtJl~il~~fl ~1WviilreflftlfJrI-M1lOil

tfltlllJ~m~~~lJlUu 14 ~e llllt1l~ltJIlu~f)muJ1fl3Jnu (fll3J11a~~tIla~~n~l~~I~fl~~~t1lln)ri~W~ll~1~~u~UJ3JiI1~1~ fflJYifnlluWIlnW ~1tllf~WiiiutJ1l1jhiSnl1n~l~u~lJllillln~1 60

LoDWjUJ tL1llilsLAB llatJn1m14~fl~nut~ml1ltiI1~UII1ltDi f1 Jlflfilll lI1Il1l

Jl1ljfl1fJIt 1Iil~ II1~3Jn1J LOAD 1ll1l011114DW1Il1i11 f1~1ii 1I~fl 14

16 m~tJfl1t1111t1tlL~l1ftJhJ t1~91Ht~IJJitH1itl1fJlIibr STREET LIGHTbull

WIRE (TYPE RHI ~1tltfl1UililVl~~1ll~middothltiifJ 141il1f ~-1n1W 2 mru IKfln

Il1J1 fI~~Illftl lI1l-l illhMrilIlil-l ILIl14hi~ ~ n+1 2 11I111-1tiflibll LIl1

17 lfIl4ill3J1lIiriilI)~JIl~il CARTfliDGE FUSE lltl4rluintfiPil~I1~t1

l

23

1S mJilILtJnIll~~lolJl(aJuVl11lINmliJ tJl1 l1~L~um1r4fllUliil UVlU~~eriI~ lli~u~u dtl~n mtlutiltiiJU~ziht~Jr~1l1 ril ln11I11fl ((Jnf11IIJl fIu~~1 ttlVll til ~Wflittill1-laquoriIIVltfltitl m~tYI (11)lilU1lJ1lEJBinIl1lri-mUf011fJ Lt~i

lmfliflILlJn(q1flffltl WIRE JOINT l11fluJ1tl~tJltlf1t1i1ilvnIl1tllhJuuuliw ill~~ilflnfl LltllfuiftJliltlig~~Lt1u~1n1rolufl1Y1flJ~~t1t1 (INSULATING SEALING COMPOUND) tll~U1lJ~lJ TAPE lilll~mftJrrU

111Jv4jh~mflI1Vjn 1mh

19 1mtll-4JrhltJlJ O1JlPiflfl1 poundIfl~~JWl fJiI1iJ~CPifl fl1 E1YIl iiiuLlhntJ LtlftllOltl mtth

fltln1nnwh~~1~llltil~~nllQtl (111 lil1nJfi1fl1v1 ~lll~~~~UAU ~ nelll~tll ~n~iiiil~u~-3111Yl[ ei1 LLfI~ltJtfl1l 1 fl 1 ~4il11Jft~l~tJpoundIlPi1ltlld 191 rl~1U~Ullifl411hfl1JVlMIIPl~il~J~1ihrIi111~1nh 16 ITI UU

192 GROUND ROD Iifl~tJuJil~IlllLL~-31ill1fllLLtl-ljlJih (COPPER bull w

CLAD) i~lrIiWlilU1J~)~Jdnfll~jUlfJn15S ih UOJ1lWUtm

n~16 t1 rell1lhUII~1~lflIL~~t~ntlllJK~na (HOT-DIP

GALVANIZED STEEL) ril~ LLI1i1litHilLlAUeh~lilmn1t3Jufllni1 51B

ih fjJ1lWUIlJn11 B ~1i1

193 n1111itlmmL~fllJiI1mNiiiuolJ GROUND ROD ffl~il1Ji71

GROUND ROD CLAMP 1111~Ilt1mru~1flnm1 tj~il1JPiutlflm~lN1 J 1t~ ~ 4~t ~

194 n111J1 ~IJ11t1JMill1111 ~I~lEH ~~~Pl fl JJ Ilfl~11111 III IIJ~1lYI 1ZflIhllJ~

~il~tlfl1t1t1til6-l GROUND ROD lINl11iiiJfln1mrUil~J SO bull J

bull ~~UtitlJI1 IYlllt~tlfll1~rJIl~lifltJ1nnlQntlnn~

196 mIIit)M~Ul1nH1t1J1Jt1rJ9iU1lIJOU iIltJ~UhJJI~tl~ ~If1~~WhJ

UtlEln+1 2 ~c)

110 lfflllllllnUtl1JLurfIHi11~il VOLTAGE DROP 1~1~ MAIN INCOMING

SWITCH BOARD nlJ-iJllM 1LUN41thhriu 2u1flLiIIl~rltlnlN

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I 1 ~I~111 nnlYl1~~fll~l~)1lf)~~fj1Jtt1JULtfi~~tlt llULlnml llmLifl m111

iIlSgth ~~lgt)J q] till poundI ~ iLlJ1Jl(~11 Ufl L~ J VI Iiil (1)gtl flfilruCItU LmI1hgtl 1

11101UftlIU1Vllll-lLft 1Vll4 LfllJ ~ 1 flhNh vh6 1J11 gt11 mH~1I iIYl~llEt

~11t11 flil Vl~tln11LLlj-lrJ~l111t1ft L ~Elf Il1l~lAJJ1~Yh LLl 1jUMnf LII~

SINGLE LINE DIAGRAM 1~m111Yl1Ufl11-1ftl11i11rJltt1tmW1l14ritJdln11 ~

lIill~n171yHh W1l T~Ill ~111 Sllii1ltJ n1J~11lvi4QUmrutLa m1llJn1til1Yiw 1

112 mtlHh~1l1VlflH l~~1~OUn11t111lln11~Vl~~~Unlnrlf11tJ1vjfh~mJ Vl1I-IftlgtlJh Lihm11liHrillWtJlln LLIl1vI~1 n~1~491n01111I-M 1UII~ ~ fl l-l ~rll L~ufhlii III ~Hi~11 ~1iI1 ri 1111 Tlllll1llJ1 ir1l fl1H roh u~U 1 tlgj

ViNtflJ~lflthgtl H1llf1iiJl~~fl~ii 8AlLASn JIill1lll 1 Vll-l 1n

nT)J vn~j~fJgtlUlaquofJlvi1 L jjU nlfYI Iilil Ill vi~d 1121 11 VI iiil1J-liPIphrh laquo~tl4~~h POWER FACTOR flfJllJ t1i1tlVllUJIIllflUlll

bull

~)J i11EltU~lltflll 11111 Lt~~ IIN IiflPl 1n1In1itit~ fn1Yl laquon~ru

na~tI-1nU4llrJLlUlJ~ltlL1hJ1l1ltJ1WlllgtlLtiI)J LUlfim~ru nli ~

ni~ EJlhIiq bfllIfLJJtI~gtl

i1 i1lllbf)~ l iJ gtJ r11111 i1liIM1rJlIRtJ L~e-rli1

nlilliljllllJlnuflnVllltNihfl~lvjYlV11wm11~mjtJ POWER bull

FACTOR hi~m~1 09 LAG Will i1l1~J1hjjll1li1l~1ljjlU~lJfllflll

fIHlbrmW~1 nrl1 05 MEGoHM

112 2 Vli1lfliJll1i11llllJlhW1l1ul1J~fIlJlll1ill~J~lt 1Mr)~~11JLl 2l1lt1

tlHhlLlIlfiZ i~UnlJ~l ~MiJlh~1n~l 05 MEG OHM

U23 I1Q1f1il1l1ll GROUND RESTSTANCE lI1l~nl~Ill1lfllPU Llviil~Iltli1li

iiIl10~1U11jLii 25 OHM

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2 tThftEl~ft141iiflltlUUflW1U yenl~1P1n~1llihLfl-lfl~1~lI1ti11ru~PiIl~J1j (hrutifNI~11jUUflniu1ti Jum liell11Y11lJIlWLPiUL~)YJnlll~ il4fll itutll~-3d

21 MAIN INCOMING SWITCH BOARD xlllulbJ~)lJ1lf1f1L1iWI~1llJnU 11 ~ J ~ lV I~ bull J ~ lJt 11 1-11flvnnl~~~YlIWlflVIlUIi m1lj lU~1LLU~I1I1j1lm IUnl1I1lfll

IttJLlntlI1ht-11nlfi

22 I1ftl-1H FUSE ~1lJ11VilafifJll~i~1u1l t2middot

ll ~tl J ~l 11oj23 lt10flllllUl-1lnUn11 1 NlT JHuU ~1lJ11JIllflEl(i)Yl1Z1lIHUlIil 13

j

ct ~ d

24 mni1lUtl1t111n0IillI1lDlUJlLllffWJIil1 tH MAIN INCOMING SWITCH llfl

ilitlttJal SAFTY SWITCH 1tl FUSE lItl4HI1VflJ 1mUUfi1f1i~iliu ~flJ

Lutn1tnutl7-lllhnlVl1u i~dju1tlvn lJ t1tlitfl poundIf1~ltlJ1ntllftl 4

WliVl1 ndluIl1a~~ultllUll n111ll NrnIlU1ln il 1Ii1UI~tN1JtlJIilllJtll

~ bullbull I ~ t J Ii I inll1nll1Ull~fl) UUU A MnJllUUl TW VlUI1~lJ1[1I11IWajllflllllJnlbil

lrlh1Ifth~U~1l AMPERE jJfl~ilifl4rill1 ~-l~ ~lJ~1iIUIlii1l~fl~WUllf)n-i1 ~ ~ t - Il1 I - ~ Jv 4 fIl1l-l~ flflUJIll1 ulI~I~lil-lLIIIlJfl1 fJ lJ Lm I1Utl1YllfI1l1llllB-4l~ 1 lI~I t

Iifl~lillJL~1jJWlV112 ~W1I110 ~Jil185 UJIlI1 1-11El 6 LJJfl1~li1rl ~U~Pl~l~

I CLEVIS tlUhlllkl-ll1~1n~1 SECONDARY RACK jJ1l4m1~YlrhlIm~N

30middot 60 loitlelUJlIl1 llilpoundlltiltffregmiddotwiltluf11t1fl1atoyenU1tJ1N 160 UJ911 rilLInll

I~Utl1t1~ll~l ~1l1atUlVlTWI ~tNt-nfllllllil1l iIil-l n 1~Hh LI1I1V1ftNltUtJ

l) - ~ ~_UI yC M1flllUlltlU~1jJNiUJUPllvnllujJnu L(1jU IUVlfl1fl2Jtl1 tI nnf1lt1l111 fl1iI1)1U I

fl~n~ IRIGID STEEL CONDUIT) tlI1U~1l1i1U1l~ll1fJItlnilWllJPI~YII

rMfuA1t1~tIlJil1ml1~l~fl)IJJ(lti ENtRANCE CAP

26 mfL~lJl1tll1n SWITCH BOARD tueT-l LOAD I~eiluhJIJ11jJrlfj ~ 11 Ji I ~ l

rZlalflll bUlIil 15 Yl4U MlJrImiddota1lEJIlUIUlJUfJltliIlU~IlEJ

2~ mnitl1un1fJ1Ulfl1~ultJu41ilHLfl~~~lil~mftlgtlLLI1~IOll1tlm)J1tJ fltL~~fIlUfa 16

26

27 M~~raquo~jt1l~minmltllllliiP1llliJifl~3j CARTRIDG E FUSE Llh~middothllnlJ 8 17 ehutfl~~~ll111 rnlllJ 1~1~~FllIiWItifltlUPIJ1~Jfl2ltJ1U1n Wlnu 10 ~bull~ ~1 1 I~~ tvlJil CARTRIDGE FUSE l-t1e CIRCUIT BREAKER

111)1) ~ lJl-lluvi1Utl-l~~Ejnu 28 n111ia LltlmlJtJ~tHi1IJJlJ ~fBN111flJt~tlnw1liUlt f) rlU~ 18 AlU

lU1lt~tl~lHUfl ~J I-l1~~Ln1tJrll-ltfrNf~Wlll~Yi1U Ilill~lIitltUOfllN ~ ~

tflfl1lJlf~nfl (CONNECTION BOX) lIill1lilllnWu1L~h~lilthuu LI1l2ltrt bull J 4 11 ~ 1 I_

fltllUl n~11l11 111 WIRE JOINT SIllfjJfl~VIl ~1lllUPljJU l-t7poundluUUuUmI

L1tHililn~ LLft)UliUliltliI~~tih~1 ~tlrnfJU~1lfuli~H11 tI

(INSULATING SEALING COMPOUND) ILfl~Uyjlllill TAPE IIiWtlhl1nnfu

fIltllri~1ttMIIl1lln 1 Ull~ ~ft)+tJrl tlil11ilyjlhDll~ntilllnlJt~flh~ llfl~Il)nUlvrfJI~lJVPl~laRIGID CLAMP llll RIGID CLAMP BACK middotflfI

vlllnuillNfiTl-Ul ll1ulllUYjntRl- (EXANSION Bom dll-lfUfltYllIJ

fl~m11il1~tor BOLT AND NUT yfiJ)IltW)1Jnjflfll2lhfufI~I1IJ~n

tg)tJM~ua tIllwfflz4J1liha)h~ flUWlnunltj1 50 L4u~ rtI Pl1

29 lIlllM91lht~lJlJmtriflfllJIN~umiddothllilu1t1~1lJ11~flLliltJ~r1l171uffj 19191192193 194l11 196

210 VOLTAGE DROP ~11u1tlIll1lJ1lJilI~ltIl~1~lnuftl 110

211 011JI1ln1ll~I~1ill4Jil1Juuulw~rl1UtllflUMlflLI11P1lllilf111l11uoffEJ

111 t~nulvHh1JPrnfll~lrt1tnillJnlfMllltllJ~)l

112 n1r lYlihlll nllll~I phlilUn11jllj~J~ftflUIlI1ll11tJfilfIilflvltL1rhfie

11211211122 Ul 1123

3 rilll1Y1wmJM~1lllnJl11lJ Uft1I1IildhfJ I-1SJltJOIt 1ruUlrl-MlUtil

fij1~Pl~~~1~1Hill~llJ 1~I1Jmjm1Jfjm1 ~11MIiltJ1Iltufli11t 1 6l1ll11 l~1llJ IIHUtml-t1ilL~flllUft1JlJ1nll~~~euroWl11Eltl1lnmN~middotu(~1Jhit1wliflfl~Oljuln-n1 l1iH

tt~l~fi1MfteINihfJUflmlaquoutl1-lvh-l 1 iJ~lLLUh~d

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31 MAIN INCOMNG SWiTCH BOARD li-YLUWttJ~ll1r1JIlIL~Eli1l~1lJ1U~~ 11 r-

~

) 32 n1Tloft fUSE ~dj1amphJIn1wmJlL~ICl~rlJ1llolrl 12 i

1 ~ i- ~ 0J

) 33 1A1fllJli1lI1l)lnUm1 1 ~I mthHtl~nm1tlilltlfJt1lmlJlnuiitl 13 ~ J_

34 n11LMU~lallnj1)Ill(Il1lPllLIl1lJVl1 01 MAININCOMING SWITCH ttlZ

IiitlhJ~~ SAFTY SWITCH 11l FUSE ll1l~NI1rlfla~1i~lJ 1 Vjn111l x~ilUhj lJI

P113-11UlflLJ tl6iYl1tJ tUlJ1l 24

36 n11i~USlfl9ln MAiN INCOMiNG SWITCH BOARD 1tltT~ LOAD 1A1nerlilf

~UllaquoliluhJumn1pound1Ii1aj1)~-llmW1ill 15bull

36 n11L~Uf11JlmJhlt~1tll~~~ LUWtflgt11~lil1J1tl111w11a111ilrt~ 1~tMlu ~il 16

)-llriillllllfl+JLlrm PHASE JJMn1In91LtllflJ~11i1iili CARTRIDGE

FUSE ilfl~nU n1ffil~~JU

nmll~1auemrlll lLl-Iull1flNl1tilla11Xt1J-u 111 1 -I 11tml1i1a~~lJHhdftl

18 v -I ~_I oj J ~I

lltJ 1llVlYl1ftlltn11f1tl N VlUlutHujFJ1-J nUfttLIJ EJj1)Y1 11j bhUlJfl 19 191

192 193 194 LIS 195

310 VOLTAGE DROP dJ1j1um~11tJlILfl[Ji11~j1jlul1l 110

311 nilJm~Vlfll-l~tir1l ~)jtltJllUU1W~IJ 1Jlnm1 ~~11l1ilmriruullYlriEl

hl t~Ji1ntll1l~tJtlrn~~rliltdfil 111 ~n11hl~1JllmflJHtlnntlu mi3I)9DUffl1lEJ

312 rntIYl1UflnlilW~tlhiilWn1lIij1ll~fl1l1il1)J rJfJlliiiaVl~jtjnUfil 112

11211122 LUI 1123

28

IlU1Jl~lilol~iVl n1mfl~Il~1Il~1lfuf1fJ~IJL~Ulu nlLfiQ~qflri~IIIfufl1~Liu1u

lln1I1U~Uln~1fl11 (Free air) vi~i1lmJUi)1m7

LlfI~Utlf~ttUJuufII~ 05 3-

10 10 6bull 16 813 I

1225 18 bull 4 27 16

6 36 22

10 60 30

bullbull 16 6076 i

ij25 96 64 d

36 119 79 ~ ~ 16060 102 ~ Iii

70 188 121 l

~ i 96 231 160 i

I 170 ~268120

dbull

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bull Na 86W 108 Watt

135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

bull 1OOOW 1043 Watt

9 fIl 1W-7tJNIIIJfiltJltilltllli~ 1iifl~1tnlfHtltll fI

I ~ Ili~n1 tn1l flh~uA)llf-lfllJlru~ImiiIiiIillll 1l-lI~ fJI-I1tJ 1iflYl1ll1Jln1r ~f1J

l J JIJ J 11_ Z ll~IHfl1MWflI1nl Vl1 n11na114WlllfJ~ft LOt InlJ~ l1l1tIAu IJ 1flP11 ~ 1 IJfll~Ifl~ rua~1Il1l1um)JL~tJ~1JlIf11 ~il111lnlll~Iml~~fl1ll11~t1U1f1VllhrlA LlflahJ11nn bull Ioi K_ It 1I j ~

It l1o1l1~ft1f11lfdLJJlfl~1-l 1 ni1l~l1 mlnltll1J VI1JUUU1VJjJ1ll~ru~1-lVll(Il1~UUm(iVl

I PltllTulnll N1Uoil-l 1 ~1l n1~~t1tlUbfl~~U~1 CJ tLf1limmil0Igtl11l rfn fI11lt11~nn1J~~mll

L t~J hIfgtlj1JtUn11ph Lilm1~ltlVlIJ IIlLUUIN~fUJf1- ltlllWUltl~~tJ)

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llU~~Upjt)u~~rumnsnl1~llnH1tlttillliltvl-M1tlell el~1jjl 11111 IflfJLiIyeni11f1l

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Page 26: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

21

bull

e iilIlUt111i1017jjJlt~il1jnnJW1LLMIIi1gtl111f1itu 4tf)lJtIl1drlihj~~1fim nL~PJtu ~Utj~lltl-3lt5~l~1lmIIllJtun1t~lIl~ll1Jhj~ 1

IJftl tIhl1JUII1lf1j~ILfl CltlUlIi1-l 1 ~Yl1UYjI11lilll Ift1YlnqJ qJ1 ru~11 LLftYltlfl~ih JJIlbullI 1 ~ IIfVlllJUfllUlJJmfltJJfl4fr1llMIM LI~CltlJmiddotMil~1J tliI-l71fJ~if)JVlIlll Lull

WUt1I4 tfhUJUII14 VlflHU iltll~ l-ll1 Inlltlvhllfhl~~1ltl1f11m1~ii~~ltl ~iJ J bull v~LuI1Mru rtll-lM1~i11Yl1~VIilN IIlltlUWYlbull11DtllIlJll fl UU1J161-ltl 1 II

11 MAIN INCOMING SWITCH BOARD 1~MIULft1YHh~L~rl1ifl1U1111 1210 B5l-l1l 6 UJl9lf 11111111 t9lJiI(fl-lfiIl1li4lJ~emllW1tnhlbJLiiU

lIl1lJnmiddothlllfl-lmJ1L~1 1lJ1lJill1lJLnIJ 10 L~WiiuJ11l7 ~Jl1)JUtjUN

l1fllltllilluflilslntlll1l4hlPi1l1fJlifl~Ui9l1li-tHl1t14f1~ L~1 iitl-lUltamphJVI~ ~ ~ ~tl ~ Vl1~I~fJlnUfll-l~~I1ntlltlWUi1ltl T3I1U 170middot200 wIl5 M~i~lI

SAFTY SWITCH lIUI1lniln1EiUpoundlnfl1Jii1UW MAIN INCOMING SWITCH

mil ~A ~ v ~J12 Iflltlll FUSE lU(Itll1lt11Uftl (TIME DElAYl lll~ffl1)1~13l11CUn1tfli1lll1

(INTERRUPTING CAPACITYll(11)1J6tJnh 10000 AMPERES SYMMETRICAL

UHz~tH~ AMPERE RATING lI1FI FUSE ~HYjnnnrrWLiitllIU11l AMPEREi

C LFI~~itl t l I iJ X ~I 113 Vl1nOlflVl~LnIJm1 1 OWITlJn 1 l-ll~Il~~Hillilfl-l l~rlJjHhtlfll JIl~1J1J

SAFTY SWITCH ~ FUSE ilEh~ct~ftil-lt~ LilUPllIj3i L~~lgtlpoundllltl1Pl AMPERE RATING ~tlj FUSE 11~J1~Jn1J LOAD lJ~WNlt9tltnlI1

rh~tJllN ~R1llliltlnUlyenl~l fJM nf1J 1ll7jIl~gt2olIli1~1nl1mfl1~iifi shy

1IIh1~til111unm1~nu~~Lfl1fltl1~tlUUlYhLill DISTRiBUTION BOARD klf- - shy

~fl~~~4tJP1l1lJ -u~~tl~~~~~~~ditl~fi~~~~~~Vi-~ci4~m1 ntl1~IINtJUU L~fJiJ~1~~Ii~1~tl~1L~~lnUn~~

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14 n1~1Jal11il1nlIl~l~WIll~~Pl1tl~-rV ~~ MAl N INCOMING SWITCH Uflt

1Iiiltl~J SAFTY SWITCH Ji~flFU$E 1lil-ll~ lniflfludlaltftl1 ~lIn(llll1l-ln)f

tvh~iuIAflljUUtJ C 1oIi1lllU1l UNDERGROUND CABLE NY( 1~lIil~ ~W

tilfJNfl)Jllii~vhLVtJ~nuwhj1 till uil 1I1111ll ~W~1oIuwiillYiUIvtfJ ~lru mmiddotuiWrht~whllU1lil AMPERE lI1ljI1-k~-rV tilMffllW~1nh 4 [1111-1

ij~fl3l1ll1 laquo~~ ttlUntl1l11~9I111-t1lW11ilti11i~1~1iH~UWiilmfJfl1Jtwh ()l1 4 iIflmiddotm11~Jgj1poundJn11lyj-Ml1M1oIell1 ~~jll1rltl LLflrlJdlflflllUvIl

ftltJft11111l1U(IlLflM1l1lJKIna (RIGID STEEL CONDUm ~flilfl~n1J01 n ~IltJn1LtllOLLftliltJ1fllhJ11(1)1 tTtJiI1Y1ltJ~1n m fl1l~ uft~l4Pia

ilfl19ri1lt~fUliltll1~~)e11U~I1~J~ln~l1li1iIl-l CLEVIS ~fll SECONDARY RACK 1l1JlltU 30 - 60 n~Wll1 tillJ~lfie-tmf1illlll1Eltlla

1~1l2Jl~ 150 WIIll Uflfl~~t1I11t1ilf1nfJ~ltf SERVICE ENTRANCE CAP -~- ______-- _-_ -- ~ - _ ~tl3Jflhl

15 f1l1L~U~1al1n SWITCH BOARD bJul LOAD 11ni11~~hJi~l~1ffl1tJ

lilfl~f~lWtl 14 rllU~fllVl1Jlt1WtJl~il~~fl ~1WviilreflftlfJrI-M1lOil

tfltlllJ~m~~~lJlUu 14 ~e llllt1l~ltJIlu~f)muJ1fl3Jnu (fll3J11a~~tIla~~n~l~~I~fl~~~t1lln)ri~W~ll~1~~u~UJ3JiI1~1~ fflJYifnlluWIlnW ~1tllf~WiiiutJ1l1jhiSnl1n~l~u~lJllillln~1 60

LoDWjUJ tL1llilsLAB llatJn1m14~fl~nut~ml1ltiI1~UII1ltDi f1 Jlflfilll lI1Il1l

Jl1ljfl1fJIt 1Iil~ II1~3Jn1J LOAD 1ll1l011114DW1Il1i11 f1~1ii 1I~fl 14

16 m~tJfl1t1111t1tlL~l1ftJhJ t1~91Ht~IJJitH1itl1fJlIibr STREET LIGHTbull

WIRE (TYPE RHI ~1tltfl1UililVl~~1ll~middothltiifJ 141il1f ~-1n1W 2 mru IKfln

Il1J1 fI~~Illftl lI1l-l illhMrilIlil-l ILIl14hi~ ~ n+1 2 11I111-1tiflibll LIl1

17 lfIl4ill3J1lIiriilI)~JIl~il CARTfliDGE FUSE lltl4rluintfiPil~I1~t1

l

23

1S mJilILtJnIll~~lolJl(aJuVl11lINmliJ tJl1 l1~L~um1r4fllUliil UVlU~~eriI~ lli~u~u dtl~n mtlutiltiiJU~ziht~Jr~1l1 ril ln11I11fl ((Jnf11IIJl fIu~~1 ttlVll til ~Wflittill1-laquoriIIVltfltitl m~tYI (11)lilU1lJ1lEJBinIl1lri-mUf011fJ Lt~i

lmfliflILlJn(q1flffltl WIRE JOINT l11fluJ1tl~tJltlf1t1i1ilvnIl1tllhJuuuliw ill~~ilflnfl LltllfuiftJliltlig~~Lt1u~1n1rolufl1Y1flJ~~t1t1 (INSULATING SEALING COMPOUND) tll~U1lJ~lJ TAPE lilll~mftJrrU

111Jv4jh~mflI1Vjn 1mh

19 1mtll-4JrhltJlJ O1JlPiflfl1 poundIfl~~JWl fJiI1iJ~CPifl fl1 E1YIl iiiuLlhntJ LtlftllOltl mtth

fltln1nnwh~~1~llltil~~nllQtl (111 lil1nJfi1fl1v1 ~lll~~~~UAU ~ nelll~tll ~n~iiiil~u~-3111Yl[ ei1 LLfI~ltJtfl1l 1 fl 1 ~4il11Jft~l~tJpoundIlPi1ltlld 191 rl~1U~Ullifl411hfl1JVlMIIPl~il~J~1ihrIi111~1nh 16 ITI UU

192 GROUND ROD Iifl~tJuJil~IlllLL~-31ill1fllLLtl-ljlJih (COPPER bull w

CLAD) i~lrIiWlilU1J~)~Jdnfll~jUlfJn15S ih UOJ1lWUtm

n~16 t1 rell1lhUII~1~lflIL~~t~ntlllJK~na (HOT-DIP

GALVANIZED STEEL) ril~ LLI1i1litHilLlAUeh~lilmn1t3Jufllni1 51B

ih fjJ1lWUIlJn11 B ~1i1

193 n1111itlmmL~fllJiI1mNiiiuolJ GROUND ROD ffl~il1Ji71

GROUND ROD CLAMP 1111~Ilt1mru~1flnm1 tj~il1JPiutlflm~lN1 J 1t~ ~ 4~t ~

194 n111J1 ~IJ11t1JMill1111 ~I~lEH ~~~Pl fl JJ Ilfl~11111 III IIJ~1lYI 1ZflIhllJ~

~il~tlfl1t1t1til6-l GROUND ROD lINl11iiiJfln1mrUil~J SO bull J

bull ~~UtitlJI1 IYlllt~tlfll1~rJIl~lifltJ1nnlQntlnn~

196 mIIit)M~Ul1nH1t1J1Jt1rJ9iU1lIJOU iIltJ~UhJJI~tl~ ~If1~~WhJ

UtlEln+1 2 ~c)

110 lfflllllllnUtl1JLurfIHi11~il VOLTAGE DROP 1~1~ MAIN INCOMING

SWITCH BOARD nlJ-iJllM 1LUN41thhriu 2u1flLiIIl~rltlnlN

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I 1 ~I~111 nnlYl1~~fll~l~)1lf)~~fj1Jtt1JULtfi~~tlt llULlnml llmLifl m111

iIlSgth ~~lgt)J q] till poundI ~ iLlJ1Jl(~11 Ufl L~ J VI Iiil (1)gtl flfilruCItU LmI1hgtl 1

11101UftlIU1Vllll-lLft 1Vll4 LfllJ ~ 1 flhNh vh6 1J11 gt11 mH~1I iIYl~llEt

~11t11 flil Vl~tln11LLlj-lrJ~l111t1ft L ~Elf Il1l~lAJJ1~Yh LLl 1jUMnf LII~

SINGLE LINE DIAGRAM 1~m111Yl1Ufl11-1ftl11i11rJltt1tmW1l14ritJdln11 ~

lIill~n171yHh W1l T~Ill ~111 Sllii1ltJ n1J~11lvi4QUmrutLa m1llJn1til1Yiw 1

112 mtlHh~1l1VlflH l~~1~OUn11t111lln11~Vl~~~Unlnrlf11tJ1vjfh~mJ Vl1I-IftlgtlJh Lihm11liHrillWtJlln LLIl1vI~1 n~1~491n01111I-M 1UII~ ~ fl l-l ~rll L~ufhlii III ~Hi~11 ~1iI1 ri 1111 Tlllll1llJ1 ir1l fl1H roh u~U 1 tlgj

ViNtflJ~lflthgtl H1llf1iiJl~~fl~ii 8AlLASn JIill1lll 1 Vll-l 1n

nT)J vn~j~fJgtlUlaquofJlvi1 L jjU nlfYI Iilil Ill vi~d 1121 11 VI iiil1J-liPIphrh laquo~tl4~~h POWER FACTOR flfJllJ t1i1tlVllUJIIllflUlll

bull

~)J i11EltU~lltflll 11111 Lt~~ IIN IiflPl 1n1In1itit~ fn1Yl laquon~ru

na~tI-1nU4llrJLlUlJ~ltlL1hJ1l1ltJ1WlllgtlLtiI)J LUlfim~ru nli ~

ni~ EJlhIiq bfllIfLJJtI~gtl

i1 i1lllbf)~ l iJ gtJ r11111 i1liIM1rJlIRtJ L~e-rli1

nlilliljllllJlnuflnVllltNihfl~lvjYlV11wm11~mjtJ POWER bull

FACTOR hi~m~1 09 LAG Will i1l1~J1hjjll1li1l~1ljjlU~lJfllflll

fIHlbrmW~1 nrl1 05 MEGoHM

112 2 Vli1lfliJll1i11llllJlhW1l1ul1J~fIlJlll1ill~J~lt 1Mr)~~11JLl 2l1lt1

tlHhlLlIlfiZ i~UnlJ~l ~MiJlh~1n~l 05 MEG OHM

U23 I1Q1f1il1l1ll GROUND RESTSTANCE lI1l~nl~Ill1lfllPU Llviil~Iltli1li

iiIl10~1U11jLii 25 OHM

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2 tThftEl~ft141iiflltlUUflW1U yenl~1P1n~1llihLfl-lfl~1~lI1ti11ru~PiIl~J1j (hrutifNI~11jUUflniu1ti Jum liell11Y11lJIlWLPiUL~)YJnlll~ il4fll itutll~-3d

21 MAIN INCOMING SWITCH BOARD xlllulbJ~)lJ1lf1f1L1iWI~1llJnU 11 ~ J ~ lV I~ bull J ~ lJt 11 1-11flvnnl~~~YlIWlflVIlUIi m1lj lU~1LLU~I1I1j1lm IUnl1I1lfll

IttJLlntlI1ht-11nlfi

22 I1ftl-1H FUSE ~1lJ11VilafifJll~i~1u1l t2middot

ll ~tl J ~l 11oj23 lt10flllllUl-1lnUn11 1 NlT JHuU ~1lJ11JIllflEl(i)Yl1Z1lIHUlIil 13

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24 mni1lUtl1t111n0IillI1lDlUJlLllffWJIil1 tH MAIN INCOMING SWITCH llfl

ilitlttJal SAFTY SWITCH 1tl FUSE lItl4HI1VflJ 1mUUfi1f1i~iliu ~flJ

Lutn1tnutl7-lllhnlVl1u i~dju1tlvn lJ t1tlitfl poundIf1~ltlJ1ntllftl 4

WliVl1 ndluIl1a~~ultllUll n111ll NrnIlU1ln il 1Ii1UI~tN1JtlJIilllJtll

~ bullbull I ~ t J Ii I inll1nll1Ull~fl) UUU A MnJllUUl TW VlUI1~lJ1[1I11IWajllflllllJnlbil

lrlh1Ifth~U~1l AMPERE jJfl~ilifl4rill1 ~-l~ ~lJ~1iIUIlii1l~fl~WUllf)n-i1 ~ ~ t - Il1 I - ~ Jv 4 fIl1l-l~ flflUJIll1 ulI~I~lil-lLIIIlJfl1 fJ lJ Lm I1Utl1YllfI1l1llllB-4l~ 1 lI~I t

Iifl~lillJL~1jJWlV112 ~W1I110 ~Jil185 UJIlI1 1-11El 6 LJJfl1~li1rl ~U~Pl~l~

I CLEVIS tlUhlllkl-ll1~1n~1 SECONDARY RACK jJ1l4m1~YlrhlIm~N

30middot 60 loitlelUJlIl1 llilpoundlltiltffregmiddotwiltluf11t1fl1atoyenU1tJ1N 160 UJ911 rilLInll

I~Utl1t1~ll~l ~1l1atUlVlTWI ~tNt-nfllllllil1l iIil-l n 1~Hh LI1I1V1ftNltUtJ

l) - ~ ~_UI yC M1flllUlltlU~1jJNiUJUPllvnllujJnu L(1jU IUVlfl1fl2Jtl1 tI nnf1lt1l111 fl1iI1)1U I

fl~n~ IRIGID STEEL CONDUIT) tlI1U~1l1i1U1l~ll1fJItlnilWllJPI~YII

rMfuA1t1~tIlJil1ml1~l~fl)IJJ(lti ENtRANCE CAP

26 mfL~lJl1tll1n SWITCH BOARD tueT-l LOAD I~eiluhJIJ11jJrlfj ~ 11 Ji I ~ l

rZlalflll bUlIil 15 Yl4U MlJrImiddota1lEJIlUIUlJUfJltliIlU~IlEJ

2~ mnitl1un1fJ1Ulfl1~ultJu41ilHLfl~~~lil~mftlgtlLLI1~IOll1tlm)J1tJ fltL~~fIlUfa 16

26

27 M~~raquo~jt1l~minmltllllliiP1llliJifl~3j CARTRIDG E FUSE Llh~middothllnlJ 8 17 ehutfl~~~ll111 rnlllJ 1~1~~FllIiWItifltlUPIJ1~Jfl2ltJ1U1n Wlnu 10 ~bull~ ~1 1 I~~ tvlJil CARTRIDGE FUSE l-t1e CIRCUIT BREAKER

111)1) ~ lJl-lluvi1Utl-l~~Ejnu 28 n111ia LltlmlJtJ~tHi1IJJlJ ~fBN111flJt~tlnw1liUlt f) rlU~ 18 AlU

lU1lt~tl~lHUfl ~J I-l1~~Ln1tJrll-ltfrNf~Wlll~Yi1U Ilill~lIitltUOfllN ~ ~

tflfl1lJlf~nfl (CONNECTION BOX) lIill1lilllnWu1L~h~lilthuu LI1l2ltrt bull J 4 11 ~ 1 I_

fltllUl n~11l11 111 WIRE JOINT SIllfjJfl~VIl ~1lllUPljJU l-t7poundluUUuUmI

L1tHililn~ LLft)UliUliltliI~~tih~1 ~tlrnfJU~1lfuli~H11 tI

(INSULATING SEALING COMPOUND) ILfl~Uyjlllill TAPE IIiWtlhl1nnfu

fIltllri~1ttMIIl1lln 1 Ull~ ~ft)+tJrl tlil11ilyjlhDll~ntilllnlJt~flh~ llfl~Il)nUlvrfJI~lJVPl~laRIGID CLAMP llll RIGID CLAMP BACK middotflfI

vlllnuillNfiTl-Ul ll1ulllUYjntRl- (EXANSION Bom dll-lfUfltYllIJ

fl~m11il1~tor BOLT AND NUT yfiJ)IltW)1Jnjflfll2lhfufI~I1IJ~n

tg)tJM~ua tIllwfflz4J1liha)h~ flUWlnunltj1 50 L4u~ rtI Pl1

29 lIlllM91lht~lJlJmtriflfllJIN~umiddothllilu1t1~1lJ11~flLliltJ~r1l171uffj 19191192193 194l11 196

210 VOLTAGE DROP ~11u1tlIll1lJ1lJilI~ltIl~1~lnuftl 110

211 011JI1ln1ll~I~1ill4Jil1Juuulw~rl1UtllflUMlflLI11P1lllilf111l11uoffEJ

111 t~nulvHh1JPrnfll~lrt1tnillJnlfMllltllJ~)l

112 n1r lYlihlll nllll~I phlilUn11jllj~J~ftflUIlI1ll11tJfilfIilflvltL1rhfie

11211211122 Ul 1123

3 rilll1Y1wmJM~1lllnJl11lJ Uft1I1IildhfJ I-1SJltJOIt 1ruUlrl-MlUtil

fij1~Pl~~~1~1Hill~llJ 1~I1Jmjm1Jfjm1 ~11MIiltJ1Iltufli11t 1 6l1ll11 l~1llJ IIHUtml-t1ilL~flllUft1JlJ1nll~~~euroWl11Eltl1lnmN~middotu(~1Jhit1wliflfl~Oljuln-n1 l1iH

tt~l~fi1MfteINihfJUflmlaquoutl1-lvh-l 1 iJ~lLLUh~d

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31 MAIN INCOMNG SWiTCH BOARD li-YLUWttJ~ll1r1JIlIL~Eli1l~1lJ1U~~ 11 r-

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) 32 n1Tloft fUSE ~dj1amphJIn1wmJlL~ICl~rlJ1llolrl 12 i

1 ~ i- ~ 0J

) 33 1A1fllJli1lI1l)lnUm1 1 ~I mthHtl~nm1tlilltlfJt1lmlJlnuiitl 13 ~ J_

34 n11LMU~lallnj1)Ill(Il1lPllLIl1lJVl1 01 MAININCOMING SWITCH ttlZ

IiitlhJ~~ SAFTY SWITCH 11l FUSE ll1l~NI1rlfla~1i~lJ 1 Vjn111l x~ilUhj lJI

P113-11UlflLJ tl6iYl1tJ tUlJ1l 24

36 n11i~USlfl9ln MAiN INCOMiNG SWITCH BOARD 1tltT~ LOAD 1A1nerlilf

~UllaquoliluhJumn1pound1Ii1aj1)~-llmW1ill 15bull

36 n11L~Uf11JlmJhlt~1tll~~~ LUWtflgt11~lil1J1tl111w11a111ilrt~ 1~tMlu ~il 16

)-llriillllllfl+JLlrm PHASE JJMn1In91LtllflJ~11i1iili CARTRIDGE

FUSE ilfl~nU n1ffil~~JU

nmll~1auemrlll lLl-Iull1flNl1tilla11Xt1J-u 111 1 -I 11tml1i1a~~lJHhdftl

18 v -I ~_I oj J ~I

lltJ 1llVlYl1ftlltn11f1tl N VlUlutHujFJ1-J nUfttLIJ EJj1)Y1 11j bhUlJfl 19 191

192 193 194 LIS 195

310 VOLTAGE DROP dJ1j1um~11tJlILfl[Ji11~j1jlul1l 110

311 nilJm~Vlfll-l~tir1l ~)jtltJllUU1W~IJ 1Jlnm1 ~~11l1ilmriruullYlriEl

hl t~Ji1ntll1l~tJtlrn~~rliltdfil 111 ~n11hl~1JllmflJHtlnntlu mi3I)9DUffl1lEJ

312 rntIYl1UflnlilW~tlhiilWn1lIij1ll~fl1l1il1)J rJfJlliiiaVl~jtjnUfil 112

11211122 LUI 1123

28

IlU1Jl~lilol~iVl n1mfl~Il~1Il~1lfuf1fJ~IJL~Ulu nlLfiQ~qflri~IIIfufl1~Liu1u

lln1I1U~Uln~1fl11 (Free air) vi~i1lmJUi)1m7

LlfI~Utlf~ttUJuufII~ 05 3-

10 10 6bull 16 813 I

1225 18 bull 4 27 16

6 36 22

10 60 30

bullbull 16 6076 i

ij25 96 64 d

36 119 79 ~ ~ 16060 102 ~ Iii

70 188 121 l

~ i 96 231 160 i

I 170 ~268120

dbull

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bull Na 86W 108 Watt

135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

bull 1OOOW 1043 Watt

9 fIl 1W-7tJNIIIJfiltJltilltllli~ 1iifl~1tnlfHtltll fI

I ~ Ili~n1 tn1l flh~uA)llf-lfllJlru~ImiiIiiIillll 1l-lI~ fJI-I1tJ 1iflYl1ll1Jln1r ~f1J

l J JIJ J 11_ Z ll~IHfl1MWflI1nl Vl1 n11na114WlllfJ~ft LOt InlJ~ l1l1tIAu IJ 1flP11 ~ 1 IJfll~Ifl~ rua~1Il1l1um)JL~tJ~1JlIf11 ~il111lnlll~Iml~~fl1ll11~t1U1f1VllhrlA LlflahJ11nn bull Ioi K_ It 1I j ~

It l1o1l1~ft1f11lfdLJJlfl~1-l 1 ni1l~l1 mlnltll1J VI1JUUU1VJjJ1ll~ru~1-lVll(Il1~UUm(iVl

I PltllTulnll N1Uoil-l 1 ~1l n1~~t1tlUbfl~~U~1 CJ tLf1limmil0Igtl11l rfn fI11lt11~nn1J~~mll

L t~J hIfgtlj1JtUn11ph Lilm1~ltlVlIJ IIlLUUIN~fUJf1- ltlllWUltl~~tJ)

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Page 27: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

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14 n1~1Jal11il1nlIl~l~WIll~~Pl1tl~-rV ~~ MAl N INCOMING SWITCH Uflt

1Iiiltl~J SAFTY SWITCH Ji~flFU$E 1lil-ll~ lniflfludlaltftl1 ~lIn(llll1l-ln)f

tvh~iuIAflljUUtJ C 1oIi1lllU1l UNDERGROUND CABLE NY( 1~lIil~ ~W

tilfJNfl)Jllii~vhLVtJ~nuwhj1 till uil 1I1111ll ~W~1oIuwiillYiUIvtfJ ~lru mmiddotuiWrht~whllU1lil AMPERE lI1ljI1-k~-rV tilMffllW~1nh 4 [1111-1

ij~fl3l1ll1 laquo~~ ttlUntl1l11~9I111-t1lW11ilti11i~1~1iH~UWiilmfJfl1Jtwh ()l1 4 iIflmiddotm11~Jgj1poundJn11lyj-Ml1M1oIell1 ~~jll1rltl LLflrlJdlflflllUvIl

ftltJft11111l1U(IlLflM1l1lJKIna (RIGID STEEL CONDUm ~flilfl~n1J01 n ~IltJn1LtllOLLftliltJ1fllhJ11(1)1 tTtJiI1Y1ltJ~1n m fl1l~ uft~l4Pia

ilfl19ri1lt~fUliltll1~~)e11U~I1~J~ln~l1li1iIl-l CLEVIS ~fll SECONDARY RACK 1l1JlltU 30 - 60 n~Wll1 tillJ~lfie-tmf1illlll1Eltlla

1~1l2Jl~ 150 WIIll Uflfl~~t1I11t1ilf1nfJ~ltf SERVICE ENTRANCE CAP -~- ______-- _-_ -- ~ - _ ~tl3Jflhl

15 f1l1L~U~1al1n SWITCH BOARD bJul LOAD 11ni11~~hJi~l~1ffl1tJ

lilfl~f~lWtl 14 rllU~fllVl1Jlt1WtJl~il~~fl ~1WviilreflftlfJrI-M1lOil

tfltlllJ~m~~~lJlUu 14 ~e llllt1l~ltJIlu~f)muJ1fl3Jnu (fll3J11a~~tIla~~n~l~~I~fl~~~t1lln)ri~W~ll~1~~u~UJ3JiI1~1~ fflJYifnlluWIlnW ~1tllf~WiiiutJ1l1jhiSnl1n~l~u~lJllillln~1 60

LoDWjUJ tL1llilsLAB llatJn1m14~fl~nut~ml1ltiI1~UII1ltDi f1 Jlflfilll lI1Il1l

Jl1ljfl1fJIt 1Iil~ II1~3Jn1J LOAD 1ll1l011114DW1Il1i11 f1~1ii 1I~fl 14

16 m~tJfl1t1111t1tlL~l1ftJhJ t1~91Ht~IJJitH1itl1fJlIibr STREET LIGHTbull

WIRE (TYPE RHI ~1tltfl1UililVl~~1ll~middothltiifJ 141il1f ~-1n1W 2 mru IKfln

Il1J1 fI~~Illftl lI1l-l illhMrilIlil-l ILIl14hi~ ~ n+1 2 11I111-1tiflibll LIl1

17 lfIl4ill3J1lIiriilI)~JIl~il CARTfliDGE FUSE lltl4rluintfiPil~I1~t1

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23

1S mJilILtJnIll~~lolJl(aJuVl11lINmliJ tJl1 l1~L~um1r4fllUliil UVlU~~eriI~ lli~u~u dtl~n mtlutiltiiJU~ziht~Jr~1l1 ril ln11I11fl ((Jnf11IIJl fIu~~1 ttlVll til ~Wflittill1-laquoriIIVltfltitl m~tYI (11)lilU1lJ1lEJBinIl1lri-mUf011fJ Lt~i

lmfliflILlJn(q1flffltl WIRE JOINT l11fluJ1tl~tJltlf1t1i1ilvnIl1tllhJuuuliw ill~~ilflnfl LltllfuiftJliltlig~~Lt1u~1n1rolufl1Y1flJ~~t1t1 (INSULATING SEALING COMPOUND) tll~U1lJ~lJ TAPE lilll~mftJrrU

111Jv4jh~mflI1Vjn 1mh

19 1mtll-4JrhltJlJ O1JlPiflfl1 poundIfl~~JWl fJiI1iJ~CPifl fl1 E1YIl iiiuLlhntJ LtlftllOltl mtth

fltln1nnwh~~1~llltil~~nllQtl (111 lil1nJfi1fl1v1 ~lll~~~~UAU ~ nelll~tll ~n~iiiil~u~-3111Yl[ ei1 LLfI~ltJtfl1l 1 fl 1 ~4il11Jft~l~tJpoundIlPi1ltlld 191 rl~1U~Ullifl411hfl1JVlMIIPl~il~J~1ihrIi111~1nh 16 ITI UU

192 GROUND ROD Iifl~tJuJil~IlllLL~-31ill1fllLLtl-ljlJih (COPPER bull w

CLAD) i~lrIiWlilU1J~)~Jdnfll~jUlfJn15S ih UOJ1lWUtm

n~16 t1 rell1lhUII~1~lflIL~~t~ntlllJK~na (HOT-DIP

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ih fjJ1lWUIlJn11 B ~1i1

193 n1111itlmmL~fllJiI1mNiiiuolJ GROUND ROD ffl~il1Ji71

GROUND ROD CLAMP 1111~Ilt1mru~1flnm1 tj~il1JPiutlflm~lN1 J 1t~ ~ 4~t ~

194 n111J1 ~IJ11t1JMill1111 ~I~lEH ~~~Pl fl JJ Ilfl~11111 III IIJ~1lYI 1ZflIhllJ~

~il~tlfl1t1t1til6-l GROUND ROD lINl11iiiJfln1mrUil~J SO bull J

bull ~~UtitlJI1 IYlllt~tlfll1~rJIl~lifltJ1nnlQntlnn~

196 mIIit)M~Ul1nH1t1J1Jt1rJ9iU1lIJOU iIltJ~UhJJI~tl~ ~If1~~WhJ

UtlEln+1 2 ~c)

110 lfflllllllnUtl1JLurfIHi11~il VOLTAGE DROP 1~1~ MAIN INCOMING

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SINGLE LINE DIAGRAM 1~m111Yl1Ufl11-1ftl11i11rJltt1tmW1l14ritJdln11 ~

lIill~n171yHh W1l T~Ill ~111 Sllii1ltJ n1J~11lvi4QUmrutLa m1llJn1til1Yiw 1

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nT)J vn~j~fJgtlUlaquofJlvi1 L jjU nlfYI Iilil Ill vi~d 1121 11 VI iiil1J-liPIphrh laquo~tl4~~h POWER FACTOR flfJllJ t1i1tlVllUJIIllflUlll

bull

~)J i11EltU~lltflll 11111 Lt~~ IIN IiflPl 1n1In1itit~ fn1Yl laquon~ru

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ni~ EJlhIiq bfllIfLJJtI~gtl

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nlilliljllllJlnuflnVllltNihfl~lvjYlV11wm11~mjtJ POWER bull

FACTOR hi~m~1 09 LAG Will i1l1~J1hjjll1li1l~1ljjlU~lJfllflll

fIHlbrmW~1 nrl1 05 MEGoHM

112 2 Vli1lfliJll1i11llllJlhW1l1ul1J~fIlJlll1ill~J~lt 1Mr)~~11JLl 2l1lt1

tlHhlLlIlfiZ i~UnlJ~l ~MiJlh~1n~l 05 MEG OHM

U23 I1Q1f1il1l1ll GROUND RESTSTANCE lI1l~nl~Ill1lfllPU Llviil~Iltli1li

iiIl10~1U11jLii 25 OHM

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2 tThftEl~ft141iiflltlUUflW1U yenl~1P1n~1llihLfl-lfl~1~lI1ti11ru~PiIl~J1j (hrutifNI~11jUUflniu1ti Jum liell11Y11lJIlWLPiUL~)YJnlll~ il4fll itutll~-3d

21 MAIN INCOMING SWITCH BOARD xlllulbJ~)lJ1lf1f1L1iWI~1llJnU 11 ~ J ~ lV I~ bull J ~ lJt 11 1-11flvnnl~~~YlIWlflVIlUIi m1lj lU~1LLU~I1I1j1lm IUnl1I1lfll

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22 I1ftl-1H FUSE ~1lJ11VilafifJll~i~1u1l t2middot

ll ~tl J ~l 11oj23 lt10flllllUl-1lnUn11 1 NlT JHuU ~1lJ11JIllflEl(i)Yl1Z1lIHUlIil 13

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24 mni1lUtl1t111n0IillI1lDlUJlLllffWJIil1 tH MAIN INCOMING SWITCH llfl

ilitlttJal SAFTY SWITCH 1tl FUSE lItl4HI1VflJ 1mUUfi1f1i~iliu ~flJ

Lutn1tnutl7-lllhnlVl1u i~dju1tlvn lJ t1tlitfl poundIf1~ltlJ1ntllftl 4

WliVl1 ndluIl1a~~ultllUll n111ll NrnIlU1ln il 1Ii1UI~tN1JtlJIilllJtll

~ bullbull I ~ t J Ii I inll1nll1Ull~fl) UUU A MnJllUUl TW VlUI1~lJ1[1I11IWajllflllllJnlbil

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Iifl~lillJL~1jJWlV112 ~W1I110 ~Jil185 UJIlI1 1-11El 6 LJJfl1~li1rl ~U~Pl~l~

I CLEVIS tlUhlllkl-ll1~1n~1 SECONDARY RACK jJ1l4m1~YlrhlIm~N

30middot 60 loitlelUJlIl1 llilpoundlltiltffregmiddotwiltluf11t1fl1atoyenU1tJ1N 160 UJ911 rilLInll

I~Utl1t1~ll~l ~1l1atUlVlTWI ~tNt-nfllllllil1l iIil-l n 1~Hh LI1I1V1ftNltUtJ

l) - ~ ~_UI yC M1flllUlltlU~1jJNiUJUPllvnllujJnu L(1jU IUVlfl1fl2Jtl1 tI nnf1lt1l111 fl1iI1)1U I

fl~n~ IRIGID STEEL CONDUIT) tlI1U~1l1i1U1l~ll1fJItlnilWllJPI~YII

rMfuA1t1~tIlJil1ml1~l~fl)IJJ(lti ENtRANCE CAP

26 mfL~lJl1tll1n SWITCH BOARD tueT-l LOAD I~eiluhJIJ11jJrlfj ~ 11 Ji I ~ l

rZlalflll bUlIil 15 Yl4U MlJrImiddota1lEJIlUIUlJUfJltliIlU~IlEJ

2~ mnitl1un1fJ1Ulfl1~ultJu41ilHLfl~~~lil~mftlgtlLLI1~IOll1tlm)J1tJ fltL~~fIlUfa 16

26

27 M~~raquo~jt1l~minmltllllliiP1llliJifl~3j CARTRIDG E FUSE Llh~middothllnlJ 8 17 ehutfl~~~ll111 rnlllJ 1~1~~FllIiWItifltlUPIJ1~Jfl2ltJ1U1n Wlnu 10 ~bull~ ~1 1 I~~ tvlJil CARTRIDGE FUSE l-t1e CIRCUIT BREAKER

111)1) ~ lJl-lluvi1Utl-l~~Ejnu 28 n111ia LltlmlJtJ~tHi1IJJlJ ~fBN111flJt~tlnw1liUlt f) rlU~ 18 AlU

lU1lt~tl~lHUfl ~J I-l1~~Ln1tJrll-ltfrNf~Wlll~Yi1U Ilill~lIitltUOfllN ~ ~

tflfl1lJlf~nfl (CONNECTION BOX) lIill1lilllnWu1L~h~lilthuu LI1l2ltrt bull J 4 11 ~ 1 I_

fltllUl n~11l11 111 WIRE JOINT SIllfjJfl~VIl ~1lllUPljJU l-t7poundluUUuUmI

L1tHililn~ LLft)UliUliltliI~~tih~1 ~tlrnfJU~1lfuli~H11 tI

(INSULATING SEALING COMPOUND) ILfl~Uyjlllill TAPE IIiWtlhl1nnfu

fIltllri~1ttMIIl1lln 1 Ull~ ~ft)+tJrl tlil11ilyjlhDll~ntilllnlJt~flh~ llfl~Il)nUlvrfJI~lJVPl~laRIGID CLAMP llll RIGID CLAMP BACK middotflfI

vlllnuillNfiTl-Ul ll1ulllUYjntRl- (EXANSION Bom dll-lfUfltYllIJ

fl~m11il1~tor BOLT AND NUT yfiJ)IltW)1Jnjflfll2lhfufI~I1IJ~n

tg)tJM~ua tIllwfflz4J1liha)h~ flUWlnunltj1 50 L4u~ rtI Pl1

29 lIlllM91lht~lJlJmtriflfllJIN~umiddothllilu1t1~1lJ11~flLliltJ~r1l171uffj 19191192193 194l11 196

210 VOLTAGE DROP ~11u1tlIll1lJ1lJilI~ltIl~1~lnuftl 110

211 011JI1ln1ll~I~1ill4Jil1Juuulw~rl1UtllflUMlflLI11P1lllilf111l11uoffEJ

111 t~nulvHh1JPrnfll~lrt1tnillJnlfMllltllJ~)l

112 n1r lYlihlll nllll~I phlilUn11jllj~J~ftflUIlI1ll11tJfilfIilflvltL1rhfie

11211211122 Ul 1123

3 rilll1Y1wmJM~1lllnJl11lJ Uft1I1IildhfJ I-1SJltJOIt 1ruUlrl-MlUtil

fij1~Pl~~~1~1Hill~llJ 1~I1Jmjm1Jfjm1 ~11MIiltJ1Iltufli11t 1 6l1ll11 l~1llJ IIHUtml-t1ilL~flllUft1JlJ1nll~~~euroWl11Eltl1lnmN~middotu(~1Jhit1wliflfl~Oljuln-n1 l1iH

tt~l~fi1MfteINihfJUflmlaquoutl1-lvh-l 1 iJ~lLLUh~d

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31 MAIN INCOMNG SWiTCH BOARD li-YLUWttJ~ll1r1JIlIL~Eli1l~1lJ1U~~ 11 r-

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1 ~ i- ~ 0J

) 33 1A1fllJli1lI1l)lnUm1 1 ~I mthHtl~nm1tlilltlfJt1lmlJlnuiitl 13 ~ J_

34 n11LMU~lallnj1)Ill(Il1lPllLIl1lJVl1 01 MAININCOMING SWITCH ttlZ

IiitlhJ~~ SAFTY SWITCH 11l FUSE ll1l~NI1rlfla~1i~lJ 1 Vjn111l x~ilUhj lJI

P113-11UlflLJ tl6iYl1tJ tUlJ1l 24

36 n11i~USlfl9ln MAiN INCOMiNG SWITCH BOARD 1tltT~ LOAD 1A1nerlilf

~UllaquoliluhJumn1pound1Ii1aj1)~-llmW1ill 15bull

36 n11L~Uf11JlmJhlt~1tll~~~ LUWtflgt11~lil1J1tl111w11a111ilrt~ 1~tMlu ~il 16

)-llriillllllfl+JLlrm PHASE JJMn1In91LtllflJ~11i1iili CARTRIDGE

FUSE ilfl~nU n1ffil~~JU

nmll~1auemrlll lLl-Iull1flNl1tilla11Xt1J-u 111 1 -I 11tml1i1a~~lJHhdftl

18 v -I ~_I oj J ~I

lltJ 1llVlYl1ftlltn11f1tl N VlUlutHujFJ1-J nUfttLIJ EJj1)Y1 11j bhUlJfl 19 191

192 193 194 LIS 195

310 VOLTAGE DROP dJ1j1um~11tJlILfl[Ji11~j1jlul1l 110

311 nilJm~Vlfll-l~tir1l ~)jtltJllUU1W~IJ 1Jlnm1 ~~11l1ilmriruullYlriEl

hl t~Ji1ntll1l~tJtlrn~~rliltdfil 111 ~n11hl~1JllmflJHtlnntlu mi3I)9DUffl1lEJ

312 rntIYl1UflnlilW~tlhiilWn1lIij1ll~fl1l1il1)J rJfJlliiiaVl~jtjnUfil 112

11211122 LUI 1123

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IlU1Jl~lilol~iVl n1mfl~Il~1Il~1lfuf1fJ~IJL~Ulu nlLfiQ~qflri~IIIfufl1~Liu1u

lln1I1U~Uln~1fl11 (Free air) vi~i1lmJUi)1m7

LlfI~Utlf~ttUJuufII~ 05 3-

10 10 6bull 16 813 I

1225 18 bull 4 27 16

6 36 22

10 60 30

bullbull 16 6076 i

ij25 96 64 d

36 119 79 ~ ~ 16060 102 ~ Iii

70 188 121 l

~ i 96 231 160 i

I 170 ~268120

dbull

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29

bull Na 86W 108 Watt

135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

bull 1OOOW 1043 Watt

9 fIl 1W-7tJNIIIJfiltJltilltllli~ 1iifl~1tnlfHtltll fI

I ~ Ili~n1 tn1l flh~uA)llf-lfllJlru~ImiiIiiIillll 1l-lI~ fJI-I1tJ 1iflYl1ll1Jln1r ~f1J

l J JIJ J 11_ Z ll~IHfl1MWflI1nl Vl1 n11na114WlllfJ~ft LOt InlJ~ l1l1tIAu IJ 1flP11 ~ 1 IJfll~Ifl~ rua~1Il1l1um)JL~tJ~1JlIf11 ~il111lnlll~Iml~~fl1ll11~t1U1f1VllhrlA LlflahJ11nn bull Ioi K_ It 1I j ~

It l1o1l1~ft1f11lfdLJJlfl~1-l 1 ni1l~l1 mlnltll1J VI1JUUU1VJjJ1ll~ru~1-lVll(Il1~UUm(iVl

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L t~J hIfgtlj1JtUn11ph Lilm1~ltlVlIJ IIlLUUIN~fUJf1- ltlllWUltl~~tJ)

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1O~ Al)JfU~IIlffUJIil~tifu~1~lUlh~Tliith~fnU1 (~Yi)J~PitJltJiil 14)

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QtInmJfI LlIIUn1tVll1lvl-l1lU l11~1-lIJUlYltllftl~mkPl J6 ItlflW uan1J UfJllfllUVloII

Ol mnJrri1A nlUnnJ+ItfleHllvlrh Ll~~ellIJamplPl~~~ ow ) Lg1lIJ I)ru111Vlfl~ ~MM~ ~-lUitJUJfnJUll~l~L1t1U~fJiIIU~M11t~))l1t11t1Ll11 24 tlbJ~UUiollLLP)L)fl1~JuU(

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Page 28: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

l

23

1S mJilILtJnIll~~lolJl(aJuVl11lINmliJ tJl1 l1~L~um1r4fllUliil UVlU~~eriI~ lli~u~u dtl~n mtlutiltiiJU~ziht~Jr~1l1 ril ln11I11fl ((Jnf11IIJl fIu~~1 ttlVll til ~Wflittill1-laquoriIIVltfltitl m~tYI (11)lilU1lJ1lEJBinIl1lri-mUf011fJ Lt~i

lmfliflILlJn(q1flffltl WIRE JOINT l11fluJ1tl~tJltlf1t1i1ilvnIl1tllhJuuuliw ill~~ilflnfl LltllfuiftJliltlig~~Lt1u~1n1rolufl1Y1flJ~~t1t1 (INSULATING SEALING COMPOUND) tll~U1lJ~lJ TAPE lilll~mftJrrU

111Jv4jh~mflI1Vjn 1mh

19 1mtll-4JrhltJlJ O1JlPiflfl1 poundIfl~~JWl fJiI1iJ~CPifl fl1 E1YIl iiiuLlhntJ LtlftllOltl mtth

fltln1nnwh~~1~llltil~~nllQtl (111 lil1nJfi1fl1v1 ~lll~~~~UAU ~ nelll~tll ~n~iiiil~u~-3111Yl[ ei1 LLfI~ltJtfl1l 1 fl 1 ~4il11Jft~l~tJpoundIlPi1ltlld 191 rl~1U~Ullifl411hfl1JVlMIIPl~il~J~1ihrIi111~1nh 16 ITI UU

192 GROUND ROD Iifl~tJuJil~IlllLL~-31ill1fllLLtl-ljlJih (COPPER bull w

CLAD) i~lrIiWlilU1J~)~Jdnfll~jUlfJn15S ih UOJ1lWUtm

n~16 t1 rell1lhUII~1~lflIL~~t~ntlllJK~na (HOT-DIP

GALVANIZED STEEL) ril~ LLI1i1litHilLlAUeh~lilmn1t3Jufllni1 51B

ih fjJ1lWUIlJn11 B ~1i1

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FACTOR hi~m~1 09 LAG Will i1l1~J1hjjll1li1l~1ljjlU~lJfllflll

fIHlbrmW~1 nrl1 05 MEGoHM

112 2 Vli1lfliJll1i11llllJlhW1l1ul1J~fIlJlll1ill~J~lt 1Mr)~~11JLl 2l1lt1

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U23 I1Q1f1il1l1ll GROUND RESTSTANCE lI1l~nl~Ill1lfllPU Llviil~Iltli1li

iiIl10~1U11jLii 25 OHM

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2 tThftEl~ft141iiflltlUUflW1U yenl~1P1n~1llihLfl-lfl~1~lI1ti11ru~PiIl~J1j (hrutifNI~11jUUflniu1ti Jum liell11Y11lJIlWLPiUL~)YJnlll~ il4fll itutll~-3d

21 MAIN INCOMING SWITCH BOARD xlllulbJ~)lJ1lf1f1L1iWI~1llJnU 11 ~ J ~ lV I~ bull J ~ lJt 11 1-11flvnnl~~~YlIWlflVIlUIi m1lj lU~1LLU~I1I1j1lm IUnl1I1lfll

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ilitlttJal SAFTY SWITCH 1tl FUSE lItl4HI1VflJ 1mUUfi1f1i~iliu ~flJ

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~ bullbull I ~ t J Ii I inll1nll1Ull~fl) UUU A MnJllUUl TW VlUI1~lJ1[1I11IWajllflllllJnlbil

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I CLEVIS tlUhlllkl-ll1~1n~1 SECONDARY RACK jJ1l4m1~YlrhlIm~N

30middot 60 loitlelUJlIl1 llilpoundlltiltffregmiddotwiltluf11t1fl1atoyenU1tJ1N 160 UJ911 rilLInll

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fl~n~ IRIGID STEEL CONDUIT) tlI1U~1l1i1U1l~ll1fJItlnilWllJPI~YII

rMfuA1t1~tIlJil1ml1~l~fl)IJJ(lti ENtRANCE CAP

26 mfL~lJl1tll1n SWITCH BOARD tueT-l LOAD I~eiluhJIJ11jJrlfj ~ 11 Ji I ~ l

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26

27 M~~raquo~jt1l~minmltllllliiP1llliJifl~3j CARTRIDG E FUSE Llh~middothllnlJ 8 17 ehutfl~~~ll111 rnlllJ 1~1~~FllIiWItifltlUPIJ1~Jfl2ltJ1U1n Wlnu 10 ~bull~ ~1 1 I~~ tvlJil CARTRIDGE FUSE l-t1e CIRCUIT BREAKER

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L1tHililn~ LLft)UliUliltliI~~tih~1 ~tlrnfJU~1lfuli~H11 tI

(INSULATING SEALING COMPOUND) ILfl~Uyjlllill TAPE IIiWtlhl1nnfu

fIltllri~1ttMIIl1lln 1 Ull~ ~ft)+tJrl tlil11ilyjlhDll~ntilllnlJt~flh~ llfl~Il)nUlvrfJI~lJVPl~laRIGID CLAMP llll RIGID CLAMP BACK middotflfI

vlllnuillNfiTl-Ul ll1ulllUYjntRl- (EXANSION Bom dll-lfUfltYllIJ

fl~m11il1~tor BOLT AND NUT yfiJ)IltW)1Jnjflfll2lhfufI~I1IJ~n

tg)tJM~ua tIllwfflz4J1liha)h~ flUWlnunltj1 50 L4u~ rtI Pl1

29 lIlllM91lht~lJlJmtriflfllJIN~umiddothllilu1t1~1lJ11~flLliltJ~r1l171uffj 19191192193 194l11 196

210 VOLTAGE DROP ~11u1tlIll1lJ1lJilI~ltIl~1~lnuftl 110

211 011JI1ln1ll~I~1ill4Jil1Juuulw~rl1UtllflUMlflLI11P1lllilf111l11uoffEJ

111 t~nulvHh1JPrnfll~lrt1tnillJnlfMllltllJ~)l

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11211211122 Ul 1123

3 rilll1Y1wmJM~1lllnJl11lJ Uft1I1IildhfJ I-1SJltJOIt 1ruUlrl-MlUtil

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tt~l~fi1MfteINihfJUflmlaquoutl1-lvh-l 1 iJ~lLLUh~d

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31 MAIN INCOMNG SWiTCH BOARD li-YLUWttJ~ll1r1JIlIL~Eli1l~1lJ1U~~ 11 r-

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34 n11LMU~lallnj1)Ill(Il1lPllLIl1lJVl1 01 MAININCOMING SWITCH ttlZ

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P113-11UlflLJ tl6iYl1tJ tUlJ1l 24

36 n11i~USlfl9ln MAiN INCOMiNG SWITCH BOARD 1tltT~ LOAD 1A1nerlilf

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36 n11L~Uf11JlmJhlt~1tll~~~ LUWtflgt11~lil1J1tl111w11a111ilrt~ 1~tMlu ~il 16

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192 193 194 LIS 195

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311 nilJm~Vlfll-l~tir1l ~)jtltJllUU1W~IJ 1Jlnm1 ~~11l1ilmriruullYlriEl

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11211122 LUI 1123

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I 170 ~268120

dbull

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29

bull Na 86W 108 Watt

135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

bull 1OOOW 1043 Watt

9 fIl 1W-7tJNIIIJfiltJltilltllli~ 1iifl~1tnlfHtltll fI

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Page 29: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

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SINGLE LINE DIAGRAM 1~m111Yl1Ufl11-1ftl11i11rJltt1tmW1l14ritJdln11 ~

lIill~n171yHh W1l T~Ill ~111 Sllii1ltJ n1J~11lvi4QUmrutLa m1llJn1til1Yiw 1

112 mtlHh~1l1VlflH l~~1~OUn11t111lln11~Vl~~~Unlnrlf11tJ1vjfh~mJ Vl1I-IftlgtlJh Lihm11liHrillWtJlln LLIl1vI~1 n~1~491n01111I-M 1UII~ ~ fl l-l ~rll L~ufhlii III ~Hi~11 ~1iI1 ri 1111 Tlllll1llJ1 ir1l fl1H roh u~U 1 tlgj

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bull

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ni~ EJlhIiq bfllIfLJJtI~gtl

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fIHlbrmW~1 nrl1 05 MEGoHM

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tlHhlLlIlfiZ i~UnlJ~l ~MiJlh~1n~l 05 MEG OHM

U23 I1Q1f1il1l1ll GROUND RESTSTANCE lI1l~nl~Ill1lfllPU Llviil~Iltli1li

iiIl10~1U11jLii 25 OHM

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21 MAIN INCOMING SWITCH BOARD xlllulbJ~)lJ1lf1f1L1iWI~1llJnU 11 ~ J ~ lV I~ bull J ~ lJt 11 1-11flvnnl~~~YlIWlflVIlUIi m1lj lU~1LLU~I1I1j1lm IUnl1I1lfll

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22 I1ftl-1H FUSE ~1lJ11VilafifJll~i~1u1l t2middot

ll ~tl J ~l 11oj23 lt10flllllUl-1lnUn11 1 NlT JHuU ~1lJ11JIllflEl(i)Yl1Z1lIHUlIil 13

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24 mni1lUtl1t111n0IillI1lDlUJlLllffWJIil1 tH MAIN INCOMING SWITCH llfl

ilitlttJal SAFTY SWITCH 1tl FUSE lItl4HI1VflJ 1mUUfi1f1i~iliu ~flJ

Lutn1tnutl7-lllhnlVl1u i~dju1tlvn lJ t1tlitfl poundIf1~ltlJ1ntllftl 4

WliVl1 ndluIl1a~~ultllUll n111ll NrnIlU1ln il 1Ii1UI~tN1JtlJIilllJtll

~ bullbull I ~ t J Ii I inll1nll1Ull~fl) UUU A MnJllUUl TW VlUI1~lJ1[1I11IWajllflllllJnlbil

lrlh1Ifth~U~1l AMPERE jJfl~ilifl4rill1 ~-l~ ~lJ~1iIUIlii1l~fl~WUllf)n-i1 ~ ~ t - Il1 I - ~ Jv 4 fIl1l-l~ flflUJIll1 ulI~I~lil-lLIIIlJfl1 fJ lJ Lm I1Utl1YllfI1l1llllB-4l~ 1 lI~I t

Iifl~lillJL~1jJWlV112 ~W1I110 ~Jil185 UJIlI1 1-11El 6 LJJfl1~li1rl ~U~Pl~l~

I CLEVIS tlUhlllkl-ll1~1n~1 SECONDARY RACK jJ1l4m1~YlrhlIm~N

30middot 60 loitlelUJlIl1 llilpoundlltiltffregmiddotwiltluf11t1fl1atoyenU1tJ1N 160 UJ911 rilLInll

I~Utl1t1~ll~l ~1l1atUlVlTWI ~tNt-nfllllllil1l iIil-l n 1~Hh LI1I1V1ftNltUtJ

l) - ~ ~_UI yC M1flllUlltlU~1jJNiUJUPllvnllujJnu L(1jU IUVlfl1fl2Jtl1 tI nnf1lt1l111 fl1iI1)1U I

fl~n~ IRIGID STEEL CONDUIT) tlI1U~1l1i1U1l~ll1fJItlnilWllJPI~YII

rMfuA1t1~tIlJil1ml1~l~fl)IJJ(lti ENtRANCE CAP

26 mfL~lJl1tll1n SWITCH BOARD tueT-l LOAD I~eiluhJIJ11jJrlfj ~ 11 Ji I ~ l

rZlalflll bUlIil 15 Yl4U MlJrImiddota1lEJIlUIUlJUfJltliIlU~IlEJ

2~ mnitl1un1fJ1Ulfl1~ultJu41ilHLfl~~~lil~mftlgtlLLI1~IOll1tlm)J1tJ fltL~~fIlUfa 16

26

27 M~~raquo~jt1l~minmltllllliiP1llliJifl~3j CARTRIDG E FUSE Llh~middothllnlJ 8 17 ehutfl~~~ll111 rnlllJ 1~1~~FllIiWItifltlUPIJ1~Jfl2ltJ1U1n Wlnu 10 ~bull~ ~1 1 I~~ tvlJil CARTRIDGE FUSE l-t1e CIRCUIT BREAKER

111)1) ~ lJl-lluvi1Utl-l~~Ejnu 28 n111ia LltlmlJtJ~tHi1IJJlJ ~fBN111flJt~tlnw1liUlt f) rlU~ 18 AlU

lU1lt~tl~lHUfl ~J I-l1~~Ln1tJrll-ltfrNf~Wlll~Yi1U Ilill~lIitltUOfllN ~ ~

tflfl1lJlf~nfl (CONNECTION BOX) lIill1lilllnWu1L~h~lilthuu LI1l2ltrt bull J 4 11 ~ 1 I_

fltllUl n~11l11 111 WIRE JOINT SIllfjJfl~VIl ~1lllUPljJU l-t7poundluUUuUmI

L1tHililn~ LLft)UliUliltliI~~tih~1 ~tlrnfJU~1lfuli~H11 tI

(INSULATING SEALING COMPOUND) ILfl~Uyjlllill TAPE IIiWtlhl1nnfu

fIltllri~1ttMIIl1lln 1 Ull~ ~ft)+tJrl tlil11ilyjlhDll~ntilllnlJt~flh~ llfl~Il)nUlvrfJI~lJVPl~laRIGID CLAMP llll RIGID CLAMP BACK middotflfI

vlllnuillNfiTl-Ul ll1ulllUYjntRl- (EXANSION Bom dll-lfUfltYllIJ

fl~m11il1~tor BOLT AND NUT yfiJ)IltW)1Jnjflfll2lhfufI~I1IJ~n

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29 lIlllM91lht~lJlJmtriflfllJIN~umiddothllilu1t1~1lJ11~flLliltJ~r1l171uffj 19191192193 194l11 196

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135 W 175 Watt

140 W 172 Watt

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bull Fl 32 W 46 Watt

40W 48 Wan

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250W 266 Watt

bull 400W bull 422 Watt

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25

2 tThftEl~ft141iiflltlUUflW1U yenl~1P1n~1llihLfl-lfl~1~lI1ti11ru~PiIl~J1j (hrutifNI~11jUUflniu1ti Jum liell11Y11lJIlWLPiUL~)YJnlll~ il4fll itutll~-3d

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29 lIlllM91lht~lJlJmtriflfllJIN~umiddothllilu1t1~1lJ11~flLliltJ~r1l171uffj 19191192193 194l11 196

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192 193 194 LIS 195

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28

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36 119 79 ~ ~ 16060 102 ~ Iii

70 188 121 l

~ i 96 231 160 i

I 170 ~268120

dbull

r -

29

bull Na 86W 108 Watt

135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

bull 1OOOW 1043 Watt

9 fIl 1W-7tJNIIIJfiltJltilltllli~ 1iifl~1tnlfHtltll fI

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Page 31: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

26

27 M~~raquo~jt1l~minmltllllliiP1llliJifl~3j CARTRIDG E FUSE Llh~middothllnlJ 8 17 ehutfl~~~ll111 rnlllJ 1~1~~FllIiWItifltlUPIJ1~Jfl2ltJ1U1n Wlnu 10 ~bull~ ~1 1 I~~ tvlJil CARTRIDGE FUSE l-t1e CIRCUIT BREAKER

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28

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6 36 22

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36 119 79 ~ ~ 16060 102 ~ Iii

70 188 121 l

~ i 96 231 160 i

I 170 ~268120

dbull

r -

29

bull Na 86W 108 Watt

135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

bull 1OOOW 1043 Watt

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28

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6 36 22

10 60 30

bullbull 16 6076 i

ij25 96 64 d

36 119 79 ~ ~ 16060 102 ~ Iii

70 188 121 l

~ i 96 231 160 i

I 170 ~268120

dbull

r -

29

bull Na 86W 108 Watt

135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

bull 1OOOW 1043 Watt

9 fIl 1W-7tJNIIIJfiltJltilltllli~ 1iifl~1tnlfHtltll fI

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Page 33: ,~ o . i?it:-~.::;;~ 1 · 2019. 2. 28. · 1 ~ r - I '. c . c . i . i . I GENERAL SPECIFICATION FOR STREET LIGHTING . I . I . i . 1. General . 1.1 Description . This work shall consist

28

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1225 18 bull 4 27 16

6 36 22

10 60 30

bullbull 16 6076 i

ij25 96 64 d

36 119 79 ~ ~ 16060 102 ~ Iii

70 188 121 l

~ i 96 231 160 i

I 170 ~268120

dbull

r -

29

bull Na 86W 108 Watt

135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

bull 1OOOW 1043 Watt

9 fIl 1W-7tJNIIIJfiltJltilltllli~ 1iifl~1tnlfHtltll fI

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29

bull Na 86W 108 Watt

135 W 175 Watt

140 W 172 Watt

HO W 220 Watt

bull NPNa 250 W 288 Watt bull 400W 486 Watt

bull Fl 32 W 46 Watt

40W 48 Wan

S5W 80 Watt bull

bull Hg 80 W 90 Watt

125W 130 Watt

250W 266 Watt

bull 400W bull 422 Watt

bull 1OOOW 1043 Watt

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