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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
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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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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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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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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
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~fl~~~4tJP1l1lJ -u~~tl~~~~~~~ditl~fi~~~~~~Vi-~ci4~m1 ntl1~IINtJUU L~fJiJ~1~~Ii~1~tl~1L~~lnUn~~
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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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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
WIRE (TYPE RHI ~1tltfl1UililVl~~1ll~middothltiifJ 141il1f ~-1n1W 2 mru IKfln
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17 lfIl4ill3J1lIiriilI)~JIl~il CARTfliDGE FUSE lltl4rluintfiPil~I1~t1
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23
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111Jv4jh~mflI1Vjn 1mh
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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
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194 n111J1 ~IJ11t1JMill1111 ~I~lEH ~~~Pl fl JJ Ilfl~11111 III IIJ~1lYI 1ZflIhllJ~
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bull ~~UtitlJI1 IYlllt~tlfll1~rJIl~lifltJ1nnlQntlnn~
196 mIIit)M~Ul1nH1t1J1Jt1rJ9iU1lIJOU iIltJ~UhJJI~tl~ ~If1~~WhJ
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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
ViNtflJ~lflthgtl H1llf1iiJl~~fl~ii 8AlLASn JIill1lll 1 Vll-l 1n
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bull
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na~tI-1nU4llrJLlUlJ~ltlL1hJ1l1ltJ1WlllgtlLtiI)J LUlfim~ru nli ~
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
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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
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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
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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
111)1) ~ lJl-lluvi1Utl-l~~Ejnu 28 n111ia LltlmlJtJ~tHi1IJJlJ ~fBN111flJt~tlnw1liUlt f) rlU~ 18 AlU
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fltllUl n~11l11 111 WIRE JOINT SIllfjJfl~VIl ~1lllUPljJU l-t7poundluUUuUmI
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fIltllri~1ttMIIl1lln 1 Ull~ ~ft)+tJrl tlil11ilyjlhDll~ntilllnlJt~flh~ llfl~Il)nUlvrfJI~lJVPl~laRIGID CLAMP llll RIGID CLAMP BACK middotflfI
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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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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
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
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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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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
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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
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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
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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
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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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
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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
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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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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
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250W 266 Watt
bull 400W bull 422 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](https://reader035.vdocuments.us/reader035/viewer/2022062606/5fe2f9261bfe957821055b42/html5/thumbnails/4.jpg)
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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
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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
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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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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
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
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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
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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tvh~iuIAflljUUtJ C 1oIi1lllU1l UNDERGROUND CABLE NY( 1~lIil~ ~W
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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
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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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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
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
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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
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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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
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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
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
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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 ~
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
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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
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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
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fIltllri~1ttMIIl1lln 1 Ull~ ~ft)+tJrl tlil11ilyjlhDll~ntilllnlJt~flh~ llfl~Il)nUlvrfJI~lJVPl~laRIGID CLAMP llll RIGID CLAMP BACK middotflfI
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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
112 n1r lYlihlll nllll~I phlilUn11jllj~J~ftflUIlI1ll11tJfilfIilflvltL1rhfie
11211211122 Ul 1123
3 rilll1Y1wmJM~1lllnJl11lJ Uft1I1IildhfJ I-1SJltJOIt 1ruUlrl-MlUtil
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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
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
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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
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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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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
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
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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
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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
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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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
-
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
shy
~
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24
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
shy
25
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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) 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
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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
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6 36 22
10 60 30
bullbull 16 6076 i
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36 119 79 ~ ~ 16060 102 ~ Iii
70 188 121 l
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I 170 ~268120
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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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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
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 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](https://reader035.vdocuments.us/reader035/viewer/2022062606/5fe2f9261bfe957821055b42/html5/thumbnails/9.jpg)
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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
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
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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 ~
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
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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
shy
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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
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](https://reader035.vdocuments.us/reader035/viewer/2022062606/5fe2f9261bfe957821055b42/html5/thumbnails/10.jpg)
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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
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
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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
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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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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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![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](https://reader035.vdocuments.us/reader035/viewer/2022062606/5fe2f9261bfe957821055b42/html5/thumbnails/11.jpg)
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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
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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
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
shy
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~~
shy shy
-
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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24
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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25
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
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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
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
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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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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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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
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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30middot 60 loitlelUJlIl1 llilpoundlltiltffregmiddotwiltluf11t1fl1atoyenU1tJ1N 160 UJ911 rilLInll
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fltllUl n~11l11 111 WIRE JOINT SIllfjJfl~VIl ~1lllUPljJU l-t7poundluUUuUmI
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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
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31 MAIN INCOMNG SWiTCH BOARD li-YLUWttJ~ll1r1JIlIL~Eli1l~1lJ1U~~ 11 r-
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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 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](https://reader035.vdocuments.us/reader035/viewer/2022062606/5fe2f9261bfe957821055b42/html5/thumbnails/13.jpg)
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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
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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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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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
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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
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
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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
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
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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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 400W bull 422 Watt
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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](https://reader035.vdocuments.us/reader035/viewer/2022062606/5fe2f9261bfe957821055b42/html5/thumbnails/15.jpg)
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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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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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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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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
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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
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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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 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](https://reader035.vdocuments.us/reader035/viewer/2022062606/5fe2f9261bfe957821055b42/html5/thumbnails/17.jpg)
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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
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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
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
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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
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~~
shy shy
-
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
shy
~
~
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~
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24
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
shy
25
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
shy
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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
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
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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30
1O~ Al)JfU~IIlffUJIil~tifu~1~lUlh~Tliith~fnU1 (~Yi)J~PitJltJiil 14)
llU~~Upjt)u~~rumnsnl1~llnH1tlttillliltvl-M1tlell el~1jjl 11111 IflfJLiIyeni11f1l
JtJfJlIlaquolLfJulh~tI irult1-l~t1~1J1hntllrull1i1lfl~~fltlVl1Ylvhi1nmuill 24 I~til Ufl~ IoAll ~ oJ i l I
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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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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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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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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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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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](https://reader035.vdocuments.us/reader035/viewer/2022062606/5fe2f9261bfe957821055b42/html5/thumbnails/20.jpg)
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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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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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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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
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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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lIill~n171yHh W1l T~Ill ~111 Sllii1ltJ n1J~11lvi4QUmrutLa m1llJn1til1Yiw 1
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bull
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ni~ EJlhIiq bfllIfLJJtI~gtl
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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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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
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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
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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
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
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
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1225 18 bull 4 27 16
6 36 22
10 60 30
bullbull 16 6076 i
ij25 96 64 d
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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
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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](https://reader035.vdocuments.us/reader035/viewer/2022062606/5fe2f9261bfe957821055b42/html5/thumbnails/21.jpg)
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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
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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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~~
shy shy
-
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
shy
~
~
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~
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24
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
shy
25
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
shy
c
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
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
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
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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1O~ Al)JfU~IIlffUJIil~tifu~1~lUlh~Tliith~fnU1 (~Yi)J~PitJltJiil 14)
llU~~Upjt)u~~rumnsnl1~llnH1tlttillliltvl-M1tlell el~1jjl 11111 IflfJLiIyeni11f1l
JtJfJlIlaquolLfJulh~tI irult1-l~t1~1J1hntllrull1i1lfl~~fltlVl1Ylvhi1nmuill 24 I~til Ufl~ IoAll ~ oJ i l I
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 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](https://reader035.vdocuments.us/reader035/viewer/2022062606/5fe2f9261bfe957821055b42/html5/thumbnails/22.jpg)
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
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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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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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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
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~fl~~~4tJP1l1lJ -u~~tl~~~~~~~ditl~fi~~~~~~Vi-~ci4~m1 ntl1~IINtJUU L~fJiJ~1~~Ii~1~tl~1L~~lnUn~~
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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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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
WIRE (TYPE RHI ~1tltfl1UililVl~~1ll~middothltiifJ 141il1f ~-1n1W 2 mru IKfln
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17 lfIl4ill3J1lIiriilI)~JIl~il CARTfliDGE FUSE lltl4rluintfiPil~I1~t1
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23
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111Jv4jh~mflI1Vjn 1mh
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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
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194 n111J1 ~IJ11t1JMill1111 ~I~lEH ~~~Pl fl JJ Ilfl~11111 III IIJ~1lYI 1ZflIhllJ~
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bull ~~UtitlJI1 IYlllt~tlfll1~rJIl~lifltJ1nnlQntlnn~
196 mIIit)M~Ul1nH1t1J1Jt1rJ9iU1lIJOU iIltJ~UhJJI~tl~ ~If1~~WhJ
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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
ViNtflJ~lflthgtl H1llf1iiJl~~fl~ii 8AlLASn JIill1lll 1 Vll-l 1n
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bull
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na~tI-1nU4llrJLlUlJ~ltlL1hJ1l1ltJ1WlllgtlLtiI)J LUlfim~ru nli ~
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
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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
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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
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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
111)1) ~ lJl-lluvi1Utl-l~~Ejnu 28 n111ia LltlmlJtJ~tHi1IJJlJ ~fBN111flJt~tlnw1liUlt f) rlU~ 18 AlU
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fltllUl n~11l11 111 WIRE JOINT SIllfjJfl~VIl ~1lllUPljJU l-t7poundluUUuUmI
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fIltllri~1ttMIIl1lln 1 Ull~ ~ft)+tJrl tlil11ilyjlhDll~ntilllnlJt~flh~ llfl~Il)nUlvrfJI~lJVPl~laRIGID CLAMP llll RIGID CLAMP BACK middotflfI
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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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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
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
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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 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](https://reader035.vdocuments.us/reader035/viewer/2022062606/5fe2f9261bfe957821055b42/html5/thumbnails/23.jpg)
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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192 193 194 LIS 195
310 VOLTAGE DROP dJ1j1um~11tJlILfl[Ji11~j1jlul1l 110
311 nilJm~Vlfll-l~tir1l ~)jtltJllUU1W~IJ 1Jlnm1 ~~11l1ilmriruullYlriEl
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312 rntIYl1UflnlilW~tlhiilWn1lIij1ll~fl1l1il1)J rJfJlliiiaVl~jtjnUfil 112
11211122 LUI 1123
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6 36 22
10 60 30
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70 188 121 l
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I 170 ~268120
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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 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](https://reader035.vdocuments.us/reader035/viewer/2022062606/5fe2f9261bfe957821055b42/html5/thumbnails/24.jpg)
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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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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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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ih fjJ1lWUIlJn11 B ~1i1
193 n1111itlmmL~fllJiI1mNiiiuolJ GROUND ROD ffl~il1Ji71
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FACTOR hi~m~1 09 LAG Will i1l1~J1hjjll1li1l~1ljjlU~lJfllflll
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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
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
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
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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30
1O~ Al)JfU~IIlffUJIil~tifu~1~lUlh~Tliith~fnU1 (~Yi)J~PitJltJiil 14)
llU~~Upjt)u~~rumnsnl1~llnH1tlttillliltvl-M1tlell el~1jjl 11111 IflfJLiIyeni11f1l
JtJfJlIlaquolLfJulh~tI irult1-l~t1~1J1hntllrull1i1lfl~~fltlVl1Ylvhi1nmuill 24 I~til Ufl~ IoAll ~ oJ i l I
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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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
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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~~
shy shy
-
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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24
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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25
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
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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
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
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
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)
- shy
30
1O~ Al)JfU~IIlffUJIil~tifu~1~lUlh~Tliith~fnU1 (~Yi)J~PitJltJiil 14)
llU~~Upjt)u~~rumnsnl1~llnH1tlttillliltvl-M1tlell el~1jjl 11111 IflfJLiIyeni11f1l
JtJfJlIlaquolLfJulh~tI irult1-l~t1~1J1hntllrull1i1lfl~~fltlVl1Ylvhi1nmuill 24 I~til Ufl~ IoAll ~ oJ i l I
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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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~~
shy shy
-
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
shy
~
~
~
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~
~
24
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
shy
25
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-
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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
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)
- shy
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1O~ Al)JfU~IIlffUJIil~tifu~1~lUlh~Tliith~fnU1 (~Yi)J~PitJltJiil 14)
llU~~Upjt)u~~rumnsnl1~llnH1tlttillliltvl-M1tlell el~1jjl 11111 IflfJLiIyeni11f1l
JtJfJlIlaquolLfJulh~tI irult1-l~t1~1J1hntllrull1i1lfl~~fltlVl1Ylvhi1nmuill 24 I~til Ufl~ IoAll ~ oJ i l I
QtInmJfI LlIIUn1tVll1lvl-l1lU l11~1-lIJUlYltllftl~mkPl J6 ItlflW uan1J UfJllfllUVloII
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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
shy
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24
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
shy
25
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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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-
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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
r -
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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
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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
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194 n111J1 ~IJ11t1JMill1111 ~I~lEH ~~~Pl fl JJ Ilfl~11111 III IIJ~1lYI 1ZflIhllJ~
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FACTOR hi~m~1 09 LAG Will i1l1~J1hjjll1li1l~1ljjlU~lJfllflll
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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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30middot 60 loitlelUJlIl1 llilpoundlltiltffregmiddotwiltluf11t1fl1atoyenU1tJ1N 160 UJ911 rilLInll
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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
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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
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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
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(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
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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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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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6 36 22
10 60 30
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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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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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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
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
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
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)
- shy
30
1O~ Al)JfU~IIlffUJIil~tifu~1~lUlh~Tliith~fnU1 (~Yi)J~PitJltJiil 14)
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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25
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-
~
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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
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
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
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)
- shy
30
1O~ Al)JfU~IIlffUJIil~tifu~1~lUlh~Tliith~fnU1 (~Yi)J~PitJltJiil 14)
llU~~Upjt)u~~rumnsnl1~llnH1tlttillliltvl-M1tlell el~1jjl 11111 IflfJLiIyeni11f1l
JtJfJlIlaquolLfJulh~tI irult1-l~t1~1J1hntllrull1i1lfl~~fltlVl1Ylvhi1nmuill 24 I~til Ufl~ IoAll ~ oJ i l I
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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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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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
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(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
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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
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
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
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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
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
I ~ Ili~n1 tn1l flh~uA)llf-lfllJlru~ImiiIiiIillll 1l-lI~ fJI-I1tJ 1iflYl1ll1Jln1r ~f1J
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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
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- shy
30
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QtInmJfI LlIIUn1tVll1lvl-l1lU l11~1-lIJUlYltllftl~mkPl J6 ItlflW uan1J UfJllfllUVloII
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31 MAIN INCOMNG SWiTCH BOARD li-YLUWttJ~ll1r1JIlIL~Eli1l~1lJ1U~~ 11 r-
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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
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
I ~ Ili~n1 tn1l flh~uA)llf-lfllJlru~ImiiIiiIillll 1l-lI~ fJI-I1tJ 1iflYl1ll1Jln1r ~f1J
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It l1o1l1~ft1f11lfdLJJlfl~1-l 1 ni1l~l1 mlnltll1J VI1JUUU1VJjJ1ll~ru~1-lVll(Il1~UUm(iVl
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- shy
30
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28
IlU1Jl~lilol~iVl n1mfl~Il~1Il~1lfuf1fJ~IJL~Ulu nlLfiQ~qflri~IIIfufl1~Liu1u
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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
I ~ Ili~n1 tn1l flh~uA)llf-lfllJlru~ImiiIiiIillll 1l-lI~ fJI-I1tJ 1iflYl1ll1Jln1r ~f1J
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- shy
30
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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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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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- shy
30
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