STREET LIGHTING SPECIFICATION March 2016

Milton Keynes Council Civic Offices 1 Saxon Gate East Central Milton Keynes MK9 3HQ T+44 (0) 1908 691691 www.miltonkeynes.gov.uk

1 PREAMBLE ................................................................................................................................................ 1

2 DESIGN APPROACH ................................................................................................................................. 1

3 LUMINAIRES AND CONTROLS ................................................................................................................ 2

4 COLUMNS AND BRACKETS .................................................................................................................... 5

5 HINGED COLUMNS ................................................................................................................................... 7

6 PASSIVELY SAFE COLUMNS .................................................................................................................. 8

7 SITING OF STREET LIGHTING COLUMN ................................................................................................ 8

8 PROTECTIVE SYSTEMS – FOR COLUMN AND BRACKETS AND ON SITE PAINTING. .................................................................................................................................................. 8

9 FEEDER PILLARS.................................................................................................................................... 11

10 ISOLATION ............................................................................................................................................... 12

11 ISOLATOR ENCLOSURES ...................................................................................................................... 13

12 SWITCH DISCONNECTORS .................................................................................................................... 13

13 ROTARY FUSE CARRIER ....................................................................................................................... 14

14 FUSES ....................................................................................................................................................... 14

15 CABLES .................................................................................................................................................... 14

16 INSTALLTION AND ERECTION OF EQUIPMENT .................................................................................. 15

17 LUMINAIRE TO ISOLATOR ..................................................................................................................... 15

18 CABLE AND EARTHING ......................................................................................................................... 15

19 FASTENINGS ........................................................................................................................................... 16

20 NUMBERING OF COLUMNS ................................................................................................................... 16

21 CABLE AND DUCT LAYING (Private Supply) ....................................................................................... 17

22 CABLE TERMINATIONS .......................................................................................................................... 18

23 EARTH RODS ........................................................................................................................................... 19

24 ELECTRICAL TEST INSTRUMENTS ...................................................................................................... 19

25 ELECTRICAL INSPECTION & TESTING ................................................................................................ 19

26 WORKING ON DNO NETWORKS ........................................................................................................... 19

27 COMPETENT PERSON’S AUTHORISATION CERTIFICATE FOR WORK ON..................................... 19

Appendix A Columnn/Lantern Matrix

Appendix B Compliance

Appendix C Schedule of preferred materials

Appendix D Outline guidance – Description of inspection and testing

Appendix E DNO requirements – Eng. Recommendation G39

Appendix F SSP4 Indemnity Form

Appendix G and H Milton Keynes Borough Map/Standard detail drawings

1 PREAMBLE

(i) Milton Keynes Council has produced this specification to aid designers for

developers seeking adoption by the Council. For clarification on any areas

prior to submission please contact highwaysadoptions@milton-keynes.gov.uk

(ii) All proposed materials must be supported by a full manufacturers guarantee.

The guarantee must be under-written by an accredited financial institution,

and the contractor must provide the council with written details before any

work commences.

(iii) Notwithstanding the following specification, Milton Keynes Council also has

a purchasing policy formulated to achieve standardisation and best value.

Contractors are free to propose materials of equivalent or better performance,

but they must demonstrate to the council that this will be achieved.

(iv) All materials equipment shall be manufactured such that they are fully

compliant with the appropriate standards and directives, including WEEE and

RHOS Regulations.

(v) All installation works shall be carried out by an accredited Contractors

operative in accordance with the National highway Sector Scheme for Quality

Management in Highway Works section 8, 9a and 10. Operatives should hold

an appropriate CSCS card and the appropriate G39.

2 DESIGN APPROACH

(i) Milton Keynes are currently improving their network by converting existing

asset stock to LED on the Grid Road network, Residential Areas, Industrial

Estates, Town Centres and Redways. We will continue this programme onto

the rest of the existing network in line with its capital programme linked to

“prudential borrowing” investment.

(ii) Specific Lighting designs shall be carried out by a competent designer and in

accordance with BS5489-2012 and BSEN13201 2014. A risk base assessment

is required and this will be outlined within the Lighting report along with any

ecological concerns that may have been highlighted in the ecological impact

report and how those factors have been mitigated if any. The report is to be

submitted with the lighting design. Please refer to Appendix B for the

approved product list or the tables below. Alternatives will be considered but

this product needs to meet the specification outlined in this document and also

requires approval in writing by the Milton Keynes Street Lighting Manager.

(iii) Reality calculations will be required to support the Lighting Report showing

lighting levels on the road and footpaths. Also the dimmed level from

10.30pm to 5.30am Lighting Reality calculations. We also require 0 degree tilt

on the LED luminaire.

(iv) An Isolux drawing overlaid onto an OS map along with any neighbouring

areas that may be affected by the addition of the street lighting such as railway

lines nearby housing and hedgerows.

(v) A Section 38 drawing with the lanterns and columns positioned with

identification for ease of reference is also required.

3 LUMINAIRES AND CONTROLS

(i) Luminaires for new installations shall be as stated in TABLE 1 below. An

alternative will be considered and but is required to comply with the below

requirements , approval for an alternative luminaire will require written

approval from Milton Keynes Council.

(ii) Luminaires for road lighting shall have a minimum degree of protection rating

IP65 to BS EN 60529 1992 for luminaire optics and IP54 to BS EN 60529

1992 for luminaire control gear.

(iii) The Luminaire shall be designed for universal mounting with attitude

adjustment. Tilt angle should be 0 degrees unless otherwise approved.

(iv) Comply with BS EN 60598-2-3 and BS 4533, be compatable with the

columns and brackets specified in section 4.

(v) The cast aluminium parts of the luminaire are to be manufactured from LM6

aluminium housing ((EN AC-44100) (AL.Si12)) (low copper content).

(vi) The gear box and LED engines are to be sealed to IP66.

(vii) The luminaire is expected to have a services life of 100,000 hours and will

achieve 50,000 hours at 85% lumen maintenance (L85B50) at any of the

offered drive currents.

(viii) Luminaire should be suitable for post mounting (60/76mm) and side entry

(34/42/60mm) with the ability to adjust onsite to 0°.

(ix) Colour temperature of LED must be between 4000-4200 degrees kelvin with a

CRI of not less than 70. A maximum SP ratio of 1.5 will be allowed.

(x) All combinations of luminaires, lamps and electronic LED drivers, shall be

included in Elexon’s list of approved equipment and be allocated a valid

Unmetered Supplies (“UMS”) charge code and should be CE marked.

(xi) The luminaire shall be offered with a driver that is DALI enabled and is

capable of connecting to any DALI enabled CMS System. Residential roads

will require a step dim of 30% between 22.30 and 05.30 this is to be pre-

programmed at time by manufacturer when the order is place.

(xii) The luminaire shall be thermally managed such that a predicted driver life is

in excess of 100,000 hours.

(xiii) Warranties shall be offered for the luminaire body, light engines, and driver

life and be a minimum of 10 years plus:

a) The warranty shall clearly state any exclusions and general terms such as

maintenance regimes, records of maintenance, personnel training, etc

which may be required to validate any warranty claim. This information

will be required for the planning application review

b) The manufacturer will clearly indicate the basis of the warranty in terms

of length of warranty, the basis of liability, the amount of the cost of the

repair/replacement which the warranty offers throughout the predicted

life of the luminaire or the maximum period of the warranty.

c) The procedure to be implemented in the case of a dispute regarding any

warranty claim.

d) Whether the warranty is carried by the product itself irrespective of the

purchasing path, such that any claim may be registered by the “owner” of

the product at any point during the warranty, irrespective of who

purchased, installed, or “owned” the product in the past, or whether the

warranty is only held by the “original purchaser”.

(xiv) Luminaire shall be constructed so as to accept a photocell. The Nema socket

will be 7 pins for future conversion to CMS. Photocell specification Selc 8481

series 35/18

(xv) The fitting of all lantern components (e.g. LED panels, drivers, glazing, etc.)

shall allow for easy on-site replacement without compromise of water/dust

ingress seals in the event of component failure or future upgrade.

(xvi) Luminaires may be:

a) Class I where the luminaire has an integral earth terminal linked to all

exposed metalwork. This allows an earth connection to be made to the

b) metalwork of the supporting Structure and to the earth conductor of the

supply cable. Fortuitous earth connection provided by connection to

mechanical fixings shall not be relied upon.

Or c) Class II where there is no earth terminal provided for connection of the

luminaire’s exposed metalwork to the circuit protective conductor;

Area Mounting Height Luminaire Type

Residential - Primary 6m Tubular SE/PT

mounted

Holophane Vmax V1 or

V2

Residential – Non

Primary

5m Tubular Steel Column

SE/PT mounted

Holophane Vmax V1

Link Roads 8m Octagonal Steel

columns

Holophane Vmax V2 or

Urbis Ampera

Grid Roads Dual 12m Octagonal Steel

Column/1m Bracket

Holophane Vmax or Urbis

Ampera

Grid Road Single 10m Octagonal Steel

Column/1m Bracket

Holophane Vmax or Urbis

Ampera

Grid Road Roundabouts 12m Conical Steel

Column/ 1m bracket

Holophane Vmax

Rural 12m Octagonal Steel

Columns/1m Bracket

Holophane Vmax or Urbis

Ampera

Industrial 8m ROSA Steel Columns Holophane Vmax V2

Conservation areas Heritage columns agreed

in writing by MK Street

Lighting Manager. Please

refer to section 5 for when

to use Hinged Columns

Heritage lanterns LED

agreed in writing by MK

Street Lighting Manager

City Centre Please contact the Street

Lighting Manager at

Milton Keynes Council

Please contact the Street

Lighting Manager at

Milton Keynes Council

Redways 5m Tubular SE/PT

mounted, Please see

section 5 for when to use

Hinged Columns

Holophane Factor

Table 1 – Luminaire Selection Chart

(The above table is a guide only and not prescriptive: any special applications should be

discussed with Milton Keynes Council) Appendix A – Column/Lantern Matrix

4 COLUMNS AND BRACKETS

(i) Columns shall generally be painted galvanised steel as specified and meet the

requirements of BS EN 40 and PD 6547: 2004. Please refer to Table one for

the column style information. Root to be protected with 2 pack glass flake,

finished colour to be RAL 7037 – Grey, factory applied PSX.

(ii) The appropriate terrain category for lighting columns shall

a) Category I for all columns

(iii) The Ground Factor shall be taken as Poor (as shown in Table 2 of PD 6547:

2004) unless confirmed otherwise on site.

(iv) Columns of 5m and 6m mounting height shall be designed to support a Road

sign class A (as shown in Table 3 of PD 6547: 2004).

(v) Columns greater than 6m mounting height shall be designed to support a Road

sign class B (as shown in Table 3 of PD 6547: 2004)

(vi) The Rationalised Wind Loading factor shall be taken from PD 6547: 2004

Table A.1 for Buckinghamshire – Light

(vii) The Maximum Altitude shall be taken from PD 6547: 2004 Table A.1 for

Buckinghamshire – 202m

(viii) The mean hourly wind velocity shall be taken from PD 6547: 2004 Table A.1

for Buckinghamshire – 21.0m/sec.

(ix) The luminaire windage area shall be obtained for the proposed scheme

luminaire.

(x) The luminaire weight shall be obtained for the proposed scheme luminaire this

information will be passed to the column manufacturer using XXXX form

(xi) Partial Load Factors shall be taken from Table 1 of EN 40-3-3: 2003 as

recommended by PD 6547: 2004 - 5.2 – Class B.

(xii) Deflection class shall be taken from Table 3 of EN 40-3-3 2003 Class 3 as

recommended by PD 6547: 2004 - 5.3 - Deflection class 3.

(xiii) Fatigue requirements for columns of 8m and above shall comply to the

requirements of BD94/07.

(xiv) Street lighting columns shall be free from irregularities and burrs.

(xv) All columns and brackets must be constructed, and quality records

maintained, to comply with BS EN 40 and BS 729.

(xvi) The securing arrangement of the bracket arm to the column shall ensure that

the arm does not rotate and shall be such that the bracket can be fixed on any

one of the 4 x 90° positions in relation to the column door opening. Bracket

fixing screws shall be of stainless steel.

(xvii) Bracket arms shall be so designed that when assembled with the column shaft

the arm and spigot shall give the required angle of tilt required by the design.

(xviii) Each column shaft shall be suitable for use with the projection required by the

design. Each column shaft shall have a base compartment large enough to

offer easy access to the equipment housed therein. A baseboard of non-

hygroscopic material, minimum thickness 15mm, 90 mm wide shall be

securely fixed in each compartment and shall be of sufficient size to

accommodate the cable terminations and isolator.

(xix) The base compartment shall have weatherproof access doors fitted with

tamperproof and corrosion resistant locks of similar patterns. The door

arrangement shall be such as that it can be only opened by releasing a single

equilateral triangular headed (with 10mm diameter rounded corners) captive

stainless steel bolt screwing into a door locking bar. When the door is secured

the bolt head shall be completely recessed into a 26mm diameter access hole.

Doors shall be interchangeable for similar columns without adaptations.

(xx) An 8mm diameter 30mm long brass earth terminal complete with two brass

washers and 2 brass nuts and locknut shall be provided in the base

compartment, and therefore the requirements of BS EN 40 Part 5 shall apply.

The terminal shall be positioned so as to be readily accessible through the

door opening. The Brass Earthing terminals shall be provided on the column

size M8*30mm long complete with two brass hexagon nuts and two plain

washers. These shall be welded or brazed to the access door and inside walls

of the base compartment and shall be fitted with a distinctly and durable

marked metal label marked - SAFETY ELECTRICAL CONNECTION – DO

NOT REMOVE.

(xxi) Spare Column Door keys shall be provided on the basis of one per 10

columns.

(xxii) Columns shall have door openings arranged so that when the column is in the

erected position an operative facing the door opening will also normally be

facing oncoming traffic.

(xxiii) Columns located in the centre reserve shall have their door openings facing in

a consistent direction.

(xxiv) Columns located on bridge parapets shall have the door openings facing away

from the drop so that operatives working on the column will be facing the

drop.

(xxv) Columns to be mounted on bridge parapets shall be fitted with a door retaining

device to ensure that the door cannot be dropped over the parapet. Any steel

wire or chain used to achieve captivity shall be galvanised or stainless steel.

(xxvi) Columns located at the rear of the footpath with boundary walls and hedges

shall have the door openings facing away from the obstruction so that

operatives working on the columns will have a clear unobstructed working

area.

(xxvii) When mounted on structures or as otherwise indicated on the drawings

columns shall have flange bases.

(xxviii) The cable entry slot shall be positioned directly below the door opening and

have minimum dimensions of 75mm x 150mm and the lower edge of the slot

shall be 500mm below ground level. The slot shall be free from sharp edges

and burrs

5 HINGED COLUMNS

(i) Specification shall be as standard columns with the exception that base hinged

columns shall have no door with access to the electrical compartment only

possible in the lowered position.

(ii) Hinged columns shall be used on all footpaths, redways and other areas

without suitable vehicular access for maintenance vehicles.

6 PASSIVELY SAFE COLUMNS

(i) Where required by the Council passively safe lighting columns shall be

installed subject to a safety audit. These shall be manufactured from

aluminium and be of similar appearance to other ‘non – passive’ lighting

columns in the vicinity.

(ii) In addition to meeting the standards required by BS EN 40 passively safe

columns documentation should identify the passive safety class to EN 12767.

7 SITING OF STREET LIGHTING COLUMN

Please refer to Milton Keynes Code of Practice for Street Lighting Maintenance

2016/2017

8 PROTECTIVE SYSTEMS – FOR COLUMN AND BRACKETS AND ON SITE

PAINTING.

(i) Mild steel columns and brackets that are to be galvanised shall be

manufactured from steel with high silicon content required to afford the

correct finished galvanised coating. New columns must be hot-dip galvanised

internally and externally to BS EN ISO 1461 1999 and in accordance with the

recommendations of the Galvanisers Association.

(ii) Steel columns to be painted shall be ‘T’ washed using a blend of copper

carbonate, phosphoric acid, water and alcohols.

(iii) Painting, where required shall be to HA G2b finished with 2 coats semi gloss

of the required RAL colour.

(iv) The contractor shall provide data sheets to the council to indicate the

following information:

• Location.

• Date of painting.

• Weather conditions.

• Humidity.

• Air temperature.

(v) During application of any paint or associated product all necessary means

shall be taken to ensure that wind blown spray or droplets do not fall or carry

onto persons or property. The application of any paint or associated product

shall only be undertaken following the approval by the council of the

proposed paint system and of the applicable Method Statement. All necessary

precautions should be taken to prevent paint and ancillary materials from

contaminating other surfaces.

(vi) It shall be ensured that all paint or associated products are compatible and

that, as far as possible, all products are from the same manufacturer. All

painting works shall be carried out in accordance with the manufacturer’s

instructions, especially the restrictions on weather conditions, air temperature

and humidity and column temperature.

(vii) Prior to application the batch number and date of manufacture of the paint

material shall be recorded. Any liquid paint materials for which the “Use By

Life” declared by the manufacturer has expired, or which after stirring exhibit

signs of separation of resin, skinning, thickening or lumps before the expiry of

the “Use By Life” shall not be used.

(viii) Each coat of paint in a system shall be applied uniformly and without defects

so that its film thickness falls within the minimum and maximum range

recommended by the manufacturer. Dry film thickness which can be measured

by suitable instruments when the paint is cured will be specified by the

manufacturer. However, wet film thickness, which can be directly related to

dry film thickness, can be simply measured during application using a gauge

such as a steel comb. Account must be taken of any paint thinners used when

calculating the necessary wet film thickness.

(ix) Each coat of paint in the system shall be completed and shall be allowed to

dry in accordance with the manufacturer’s recommendations before the

subsequent coat is applied. Subsequent coats should be of a contrasting colour

to the previous one to clearly show any areas which are missed when over-

coating.

(x) The minimum and maximum intervals between the applications of individual

coats shall be those recommended by the paint manufacturer with due regard

to film thickness, temperature and relative humidity.

(xi) Stripe coats are required to be applied by brush to areas of difficult or

restricted access, corrosion traps, edges of flanges and stiffeners, ends of

sections, weld areas and any other specified areas.

(xii) The following procedures are to be followed for preparing existing damaged

paint surfaces of lighting columns for maintenance painting:

a) Remove any loose and/or flaking paint surrounding damaged areas and

feather back to sound paint work.

b) Abrade all areas of loose paint and corrosion, feathering back to sound

paint work.

c) Thoroughly wash all areas to be coated using proprietary detergent to

remove oil, grease and any other contamination. Lighting columns must

not be just wiped with a solvent soaked cloth as this will only redistribute

and contamination and leave a film that will inhibit adhesion.

d) Rinse/wash all areas to be coated using fresh cleaning water. Rinse water

should be changed frequently to avoid the re-deposition of contamination.

Any stubborn contamination that cannot be removed by washing should

be removed using mechanical means.

e) Allow all areas to be painted to dry.

f) Any areas that have been damaged back to bare steel, or show corrosion

must be: - Manually cleaned to St3 (BS 7079: pt A1: 1989) to ensure the

resulting surface will provide a good key for coating.

g) As soon as possible but within 4 hours patch prime using a proprietary

zinc rich primer applied to achieve the minimum dry film thickness in

accordance with the manufacturer’s instructions. The patch primer must

overlap the sound paint work by a minimum of 50mm all around the

patch.

h) Any areas that have been damaged or eroded back to sound galvanised

steel must be lightly abraded to provide a suitable key taking care not to

damage adjacent galvanised coatings. As soon as possible but within 4

hours patch prime using a proprietary zinc rich primer applied to achieve

the minimum dry film thickness in accordance with the manufacturer’s

instructions. The patch primer should overlap the sound paint work by a

minimum of 50mm all around the patch.

i) Lightly abrade sound paint work to provide a suitable key for subsequent

painting. Abrading must only be carried out locally in the case of a repair,

and overall in the case of a complete repaint.

j) Apply one coat of primer to achieve the minimum dry film thickness in

accordance with the manufacturer’s instructions.

k) Apply one coat of finish to achieve the minimum dry film thickness in

accordance with the manufacturer’s instructions.

l) The application of the primer and finish coats must be carried out locally

in the case of a repair and overall in the case of a complete repaint.

m) All paint coats must be applied such that the edges of the sound paint

work are fully enveloped.

n) Care should be taken to ensure that the correct minimum and maximum

over-coating times (as well as application conditions) are observed. To

short a time and the underlying paint may be dissolved by the new coat,

too long a time and inadequate adhesion may occur without further

surface preparation (e.g. abrading).

(xiii) The application of any paint or associated product shall only be undertaken

following the approval by the Council of the proposed paint system and of the

Method Statement.

9 FEEDER PILLARS

(i) Pillars shall be manufactured in two sections, a cabinet (above ground) and a

root (below ground level) or plinth that is bolted to a concrete foundation

constructed to manufacturers requirements and bolted together.

(ii) Feeder pillars shall be constructed in cast iron or galvanised sheet steel

construction. They shall include a full size back board of varnished marine

plywood at least 15mm thick or other suitable non-hygroscopic material.

Alternatively, a purpose-designed equipment mounting system may be used.

The entry for cables shall be via the root.

(iii) Circuit details and labelling shall be provided in each feeder pillar with

engraved plastic labels to identify which columns, signs, etc. they feed and the

fuse rating. A circuit schematic diagram label showing the outgoing circuits

shall be mounted on the inside of the pillar door. The label to be manufactured

from rigid plastic, pre-printed and adhesive mounted. Lettering to be 3.5mm

high in black on a white backboard. A clear plastic resealable holder shall be

fitted onto the inside of the door of each feeder pillar. An “as constructed”

drawing identifying all the equipment that the feeder pillar supplies shall be

placed in this holder. The manufacturer and the catalogue number shall be

specified for each feeder pillar. Feeder pillars shall be identified by a white

plastic plaque with 40mm high black letters. The plaque must be fixed to the

top half of the pillar door with adhesive. Feeder Pillars shall be identified in

accordance with the schedule provided.

(iv) The main earthing terminal in each feeder pillar shall be connected to the

earth via earth electrodes and shall have a maximum acceptable value of

earth electrode resistance of 20 Ohms. Earth electrodes shall also be

provided as the last item of highway electrical equipment on each circuit.

(v) Access to the enclosure shall be by means of a hinged door(s) opening to a full

180 degrees at the front.

(vi) There shall be facilities to mount electrical equipment by means of a

backboard which shall be manufactured from hardwood which is substantially

non hygroscopic or equivalent.

(vii) The enclosure shall be designed to prevent the ingress of water, snow or

foreign bodies and shall have a minimum ingress protection as specified in

BSEN60529:1992 of IP65 except for, if fitted, a ventilator at the rear of the

enclosure which will have an ingress protection of IP42.

(viii) Third party certification should be provided with or prior to the first delivery.

(ix) The top of the enclosure shall be angled to shed water.

(x) The security of the enclosure shall be ensured by locks with an additional hasp

arrangement which allows the door to be secured to the case with an external

lock.

(xi) The final paint finish shall be site applied and shall be RAL7037 (Grey),

RAL9007 (Silver Grey) or RAL8017 (Brown) as required and guaranteed for

a period of 8 years, subject to normal operating conditions in the environment

of the Buckinghamshire area.

(xii) The main earth terminal size M8* 32mm long shall be provided at a readily

accessible position within the cabinet section of the pillar.

(xiii) The earth terminal shall be brass and supplied complete with one full nut, 2

half nuts and 2 washers all brass.

(xiv) The internal minimum dimensions are as follows: Single Door Standard Width 800mm Height 1194mm Depth 350mm

10 ISOLATION

(i) Lockable double pole isolators which act upon the phase and neutral poles

must be used.

(ii) Circuit protective conductors must achieve continuity at all times.

(iii) The Isolator unit shall contain a modular double pole switch disconnector and

a modular rotary fuse carrier pre wired and assembled in an enclosure. It shall

be suitably designed for Electrical Distribution Control of street lighting

equipment.

(iv) All isolator units and associated functional equipment must comply with the

relevant British standards as stated in BS 7671 (2001): Appendix 1. All units

must be KEMA tested to IEC/EN 60947-3.

(v) All isolator units and their associated functional equipment must be CE

marked in line with the requirements of the low voltage Directive (73/23/EEC,

as amended 93/68/EEC).

(vi) The assembled isolator units must comply with the applicable clauses of

BSEN60439-1: 1999 and BSEN60439-3: 1991.

(vii) The supplier must ensure all isolator units are batch labelled and are fully

traceable.

(viii) All isolators must be of modular construction and accept din-rail mounted

accessories.

(ix) Isolators shall be suitable for 2, 3 and 4 Din rail mounting modules.

11 ISOLATOR ENCLOSURES

(i) The Isolator enclosures shall be constructed to achieve IP43 ingress rating

when the fuse cover is in place and IP2X when the fuse cover is removed, as

per BS EN 60529: 1992. All live terminals must be shrouded to avoid the

danger of shock.

(ii) The isolator enclosure must comply with the material requirements of clause

8.2.12 of BSEN60439-3: 1991. The main body shall be of a colour that easily

allows tracking faults to be seen.

(iii) The enclosure must be fitted with a hinged, lockable transparent safety lid

which requires the use of a tool to gain access to functional equipment.

Electrical components in the enclosure must not be accessible unless the

transparent lid is opened.

(iv) The enclosure shall contain a clearly marked sliding interlock which ensures

the fuse link can only be removed when the main switch disconnector is in the

off position. The interlock must be fully retained (not removable) when the

transparent cover is open.

(v) The IP rating of the enclosure must comply with the requirements of BS EN

60529: 1992.When fully assembled with functional equipment the minimum

acceptable IP rating of the sealed enclosure is IP43. With the covers removed

the minimum acceptable IP rating is IP2X.

(vi) Independent third party certification showing the complete test results must be

produced on request.

(vii) The enclosure must be labelled to the requirements of BS EN 60439-1: 1999

Clause 5. The product must be labelled as stated in BS EN 60947-3: 1999

(including Amendment 1: 2001) Clause 5.

12 SWITCH DISCONNECTORS

(i) The switch disconnector must be manufactured to and comply with the

requirements of BS EN 60947-3: 1999 (including Amendment 1: 2001).

(ii) The switch disconnector must be independently tested to the requirements of

BS EN 60947-3: 1999 (including Amendment 1: 2001) Clause 8.

13 ROTARY FUSE CARRIER

(i) The rotary fuse carrier must be manufactured to and comply with the

requirements of BS EN 60269-1: 1999.

(ii) The rotary fuse carrier must be independently tested to the requirements of BS

EN 60269-1: 1999 Clause 8.

(iii) The rotary fuse carrier must be designed to accept gG Fuse links measuring

12.7mm by 23.0mm complying with the requirements of BS EN 60269-1:

1999.

(iv) The product must be labelled as stated in BS EN 60269-1: 1999 Clause 5.

(v) Independent third party certification showing the complete test results must be

produced on request.

14 FUSES

(i) All fuses shall be of the HRC type and be in accordance with BS 7671:2008

Parts 1 & 5.

(ii) Fused links shall comply with BS 88 and BS EN 60269:1999 Notes 1 & 2 of

Paragraph 5.3 of BS 88-6 shall be taken to be the required current ratings.

(iii) Fuse ratings shall be in suitable for the lamp wattage and type and shall

generally be in accordance with Appendix C Table: C1 – Typical Fuse

Ratings.

(iv) Fuse discrimination must be designed to ensure over-current protection, in

accordance with Regulation 531 of BS 7671:2008

15 CABLES

(i) Cables to be laid underground shall be of armoured construction and have a

minimum conductor size of 6 mm2. Single phase cable shall be three-core

copper XLPE insulated and PVC sheathed copper cable conforming to BS

6004 2000 and BS 6346 1997.

(ii) Installations shall comply with the colour coding as shown in Table 51of BS

7671. For the purposes of voltage rating for street lighting cable, Category A

(Annex ‘A’ of BS 6346 1997) will apply.

(iii) For wall brackets only, the routes and type of any surface cables must be

agreed with the Council prior to their installation.

16 INSTALLTION AND ERECTION OF EQUIPMENT

(i) The holes for the planted root columns shall be excavated to a depth as

recommended by the column manufacturer and to provide the designed

luminaire mounting height. All columns may be erected with bracket attached

only. Luminaires shall only be fitted after the column has been erected for at

least 24 hours All columns shall be placed centrally in the hole in a vertical

position on a pad of concrete and the hole filled with Class ST1 concrete in

150mm layers up to a depth of 150mm below ground level. The excavation

shall be backfilled and evenly rammed. An orange polyethylene 5mm wall

thickness smooth bore duct of 50mm internal diameter shall be installed

through the concrete surround into the column via the cable entry hole to

provide a clear route for the supply cable.

(ii) Flange-plate columns, where required shall be carefully lowered onto the

foundation base prepared for it and shall be set vertically using metal shims

where necessary. The nuts shall be made tight to a torque setting in

accordance with the manufacturers recommendations to secure the column to

the foundation and the nuts and exposed bolts shall be coated with ‘Denso

paste’ and protected with ‘Denso tape’. The space between the flange-plate

and foundation base shall be grouted. The foundation bases shall be purpose

designed and constructed in accordance with the column manufacturer’s

recommendations. Concrete bases must not be loaded until 28 days strength

has been achieved.

(iii) The bracket arms shall be fixed in accordance with the manufacturer’s

instructions to prevent rotation in service. The door locking device shall be

lubricated.

17 LUMINAIRE TO ISOLATOR

(i) The circuit from the luminaire (and photocell) to the isolator shall be wired

with 1.5sq.mm or 2.5sq.mm (depending on load) 300/500V grade single core

XLPE sheathed and PVC served single core copper cables conforming to BS

6004.2000

(ii) A data cable will be run from electronic dimmable driver to base compartment

on residential roads to allow for reprogramming of driver from time to time.

This cable requires to be sleeved to stop ingress of water.

18 CABLE AND EARTHING

(i) The installation must be earthed and labelled in accordance with BS 7430

1998 and BS 7671 and labelled accordingly.

(ii) Armoured cables shall not rely upon the steel wire armour alone for the return

path to earth. The steel armour shall be bonded throughout the cable to a

dedicated core to earth in accordance with Annex B – Compliance and

Paragraph B.5 of BS 6346 1997.

(iii) A separate dedicated earth terminal block shall be fixed to the baseboard of

each column and the earthing terminals of all equipment shall be bonded

separately to this terminal block. Crimped connections are to be used

wherever possible.

(iv) This dedicated earth terminal shall be supplied irrespective of any other earth

terminal, e.g. within the cut-out or on the column.

(v) The terminal block shall be connected to the DNO earth terminal and the main

earthing conductor.

(vi) Any off-cuts or unused cable must be disposed of to scrap by a Contractor

licensed by the Local Authority and in accordance with Environmental

Agency Regulations. Waste Transfer Notes must be obtained and retained for

inspection in respect of all materials transferred for waste. All waste being

carried must be transported by a waste carrier approved by the Environmental

Regulator. Neither cable nor cable drums must be disposed of by burning,

apart from incineration by a licensed waste Contractor.

(vii) All bare earth conductors shall be sleeved with green and yellow PVC

sheathing. All screwed earth connections shall be made between two brass

washers.

(viii) Where the DNO’s service cables are of the Protective Multiple Earth type, the

Contractor shall ensure that the DNO fit the correct Protective Multiple

Earthing label.

(ix) Earth warning labels shall be fitted at every main or supplementary earth

bonding point. Labels shall be in accordance with BS-EN 951 and Regulation

514-13-01 of BS7671:2008

19 FASTENINGS

(i) All Earthing screws, washers and bolts shall be manufactured from brass

20 NUMBERING OF COLUMNS

(i) Columns for Grid roads and link roads shall be numbered by the fixing of

aluminium plates attached with steel band.

(ii) Residential roads and Redways shall be numbered with traditional stick on

numbers, Column numbers to be confirmed by the street lighting manager.

The adhesive number brand and type needs to be approved by the street

lighting manager.

(iii) Each column shall be numbered in accordance with a numbering schedule to

be provided by the council. This will normally be provided after streets have

been named.

(iv) Numbers shall be provided on a consistent side of columns. Columns mounted

on a central reservation shall have a number applied to each side so as it can

be viewed from both sides.

21 CABLE AND DUCT LAYING (Private Supply)

(i) A trench shall be excavated so as to provide a minimum cover to the cable of

450mm to invert except in the case of carriageways where cable shall be laid

at 750mm to invert. The cable shall be laid on a 75mm bed of imported sand,

free from any impurities likely to cause damage to the cable and covered with

a layer of the same material to a depth of 75mm. All unsuitable material shall

be removed and be disposed of to a licensed tip. The trench shall be re-

instated with suitable material only.

(ii) All private cables exceeding a linear length of 3m must be contained in

smooth bore medium density polyethylene duct, colour coded orange of

minimum wall thickness 5mm, and marked ‘STREET LIGHTING’ at

intervals of 900-1000mm. 100mm diameter duct shall be used, except for road

crossings and where particularly specified that 100mm or 150mm diameter

shall be used.

(iii) If the council has notified the contractor that trench inspection is required,

cable trenches shall be left open for inspection the same day that the council

has been notified that the cable is laid and shall not be backfilled without the

council’s permission. Failure to notify the council will result in the trench

being re-opened at the contractor’s expense. Any damage or rectification

works required will also be carried out at the contractor’s expense. Otherwise

all trenches shall be backfilled and re-instated immediately after cable laying.

All open trenches must be barriered and guarded in accordance with Chapter 8

of the Traffic Signs Manual.

(iv) The trench shall be backfilled and reinstated in compliance with the HAUC

specification contained within the New Roads and Street Works Act 1991 and

Chapter 8 of the Traffic Signs Manual.

(v) For private cables a 150mm wide by 0.1mm thick orange PVC tape marked

“Street Lighting Cable” shall be laid along the cable length above the line of

the cable 150mm below finished ground level. Cable tiles must be used where

cable is laid in carriageway.

(vi) No cable joints will be permitted.

(vii) Cables must be laid at an ambient temperature above 0°C.

(viii) The entire length of the duct shall be properly abutted and jointed in

accordance with manufacturers’ instructions to give a smooth bore. The

conduit shall be impact resistant, impervious to water and flexible enough to

follow undulations in the trench bottom and be able to withstand minor earth

movements.

(ix) All ducts shall be provided with a nylon draw rope which shall remain in-situ

upon completion of ducting prior to the installation of the cable. Where

appropriate the draw rope shall be brought to the surface, secured and marked

by a permanent marker. When cables are drawn into a duct an additional draw

rope shall be drawn in parallel with the cable and a 3 metre loop buried at

each duct end.

(x) Duct positions shall be indicated on the kerb line by permanent duct markers.

Unless otherwise directed, all ducts shall project a minimum of 100mm

beyond the edge of the carriageway construction with its draw rope firmly

secured to a crosspiece to prevent accidental withdrawal. All ducts shall be

plugged to prevent ingress of soil or other matter. The contractor shall inform

the council when he intends to install the duct, draw rope, plugs and markings

to enable the council to inspect before backfilling. Where more than two ducts

converge, a suitable inspection chamber shall be fitted.

(xi) On final completion of works the contractor shall furnish the council with as

built drawings indicating the location of all relevant installed ducting and

cable networks.

22 CABLE TERMINATIONS

(i) Every out-going circuit shall be protected by a lockable double pole isolator,

fused to achieve prescribed discrimination. Each isolator shall be fitted with

High Breaking Capacity fuse(s) complying with BS88 and of the appropriate

rating for the circuit load.

(ii) Lockable double pole isolators shall be fitted in the base compartment of each

lighting column or traffic sign into which cables are to be terminated.

(iii) Armoured cables shall be terminated by means of a 3-part compression gland

comprising armour locking ring, locknut, earth terminal and CET.

(iv) The cable armour shall be bonded to the earth terminal block in each column

and continuity achieved throughout the earth loop, including the column.

(v) Where dissimilar metals are in contact, the whole area of each contact surface

shall be cleaned and dried and shall then be coated with jointing paste to avoid

electrolytic action.

23 EARTH RODS Liaise with Milton Keynes Street Lighting department regarding the installation of any / all earth rods / Mats before commissioning of the street lighting equipment.

24 ELECTRICAL TEST INSTRUMENTS

(i) Test instruments shall possess a unique serial number. They shall be correctly

calibrated to National Physical Laboratory Standards and be in accordance

with the manufacturers published specifications, with testing procedures to

comply with BS EN ISO 10012/1.1992.

25 ELECTRICAL INSPECTION & TESTING

(i) The contractor shall undertake all tests prescribed in BS 7671:2008 for all new

circuits or alterations to circuits. Inspection and testing must all be carried out

as prescribed by BS 7671:2008 need to reference to the ILE electrical safety

document and the standard street lighting electrical test record sheets.

(ii) For ease of reference an outline of prescribed inspection and testing is given in

Appendix C – ‘Outline Guidance: Description of Inspection & Testing

required by BS 7671:2008’.

26 WORKING ON DNO NETWORKS

(i) No work shall be undertaken on any DNO plant or apparatus unless specific

personnel are approve to so work by the Regional Electricity Company under

Engineering Recommendation G39/1. Attention is particularly drawn to the

need for the contractor to obtain formal written approval from the DNO before

any authorised work on their plant is carried out. Contractors need to be aware

that authorisation will include indemnifying the DNO against claims and

certifying the competence of their staff to perform prescribed tasks. All

contractors should possess SSD18 accreditation.

(ii) DNO for Milton Keynes is Western Power email address.

27 COMPETENT PERSON’S AUTHORISATION CERTIFICATE FOR WORK ON

ELECTRITY COMPANY’S LIVE EQUIPMENT

(i) The contractor is responsible for notifying the DNO of the names and work

areas and responsibilities of all personnel working on or near the DNO’s plant.

The contractor must have the DNO’s prior written approval before work is

carried out.

(ii) An outline of the local DNO Electric’s training and competency requirements

are given in Appendix D – training For G39/1. However, the requirements

should be confirmed with the DNO prior to the commencement of any work.

All contractors should possess SSD18 accreditation.

APPENDIX B

COMPLIANCE

It is for the private developer to ensure that designs are submitted which provide for compliance with all appropriate legislation and regulations, and the Technical Reports, Codes and Guides produced by the Institution of Lighting Engineers.

The following is given as a brief indicative guide only and must not be regarded as an inclusive or comprehensive list:

Title

Published By

BS5489:2003 Specification and Codes of Practice

British Standards Institute

BS7671:2008 Regulations for Electrical Installations

The Institution of Electrical Engineers

National Joint Utilities Group Guidelines on the Positioning and Colour Coding of Utilities Apparatus

Special Requirements of the Statutory Undertakers

Appropriate Statutory Undertaker

Traffic Signs Regulations and General Directions 2002

The Stationary Office

Traffic Safety Code for Roadworks The Stationary Office

Engineering Recommendation G39/1 Electricity Council

New Roads and Street Works Act 1991(inc. HAUC Specification)

HMSO

Design Manual for Roads and Bridges: Technical Memorandum BD26/99 – Design for Lighting Columns

Department for Transport

Electricity at Work Regulations 1989 Health and Safety Executive

Specification for Highway Works Department for Transport

Waste from Electronic and Electrical Equipment and Recycling Regulations (WEEE)

Restriction Of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment (ROHS)

Appendix C

SCHEDULE OF PREFERRED MATERIALS

The following is a guide only and is not prescriptive: any special applications should be discussed with Milton Keynes Council.

Columns & Bracket Arms, Sign Posts

4m – 8m: Tubular Galvanised factory painted. 10m + 12m Octagonal or Conical Galvanised and painted Steel. Sign Posts : Large Based Tubular, Galvanised and painted. Refer Appendix C standard detail drawings

Hinged Columns Galvanised and painted steel.

Luminaires Refer to table 1 in section 1 or Column/lantern matrix in appendix A

Lamps LED.

Control Gear Philips Electronic Dimmable Ballasts. Philips Dali enabled LED Drivers.

Cut Outs, Isolators Charles Endirect

Photocells Selc 8481 one part photocell 35/18

Feeder Pillars Pudsey Diamond or Lucy. 5mm steel thickness. Vandal Resistant or similar approved.

Belisha Beacons Simmonsigns plus Modupost with Modubel LED’s or similar approved.

External Illumination Units for Signs

Simmonsigns LU Range Signlight or similar approved.

Flashing Amber Signs (For School Crossings)

Simmonsigns Pulsa 4004 LED’s or similar approved.

Enclosures Within Feeder Pillars

Fibox “Ex” Range or similar approved.

Fuse Carriers, MCB’s Charles Endirect, Hagar/MK or similar approved - all suitable for ‘top hat’ DIN rail.

Subway Fittings Designplan Curve

Plate Numbering System

Fabrikat / Eurosigns composite material (No scrap value) refer Appendix C - standard detail drawings

Appendix D

OUTLINE GUIDANCE: DESCRIPTION OF INSPECTION AND TESTING

REQUIRED BY BS 7671: 2008

The following are prescribed by BS7671 and must be adhered to where appropriate. This a summarised Outline Guidance only, and is for ease of reference only and does not excuse the designer and contractor from his own responsibility to refer to and adhere to BS7671:

INSPECTION i) Connection of conductors.

ii) Identification of conductors. iii) Routing of cables in safe zones or protection against mechanical damage.

iv) Selection of conductors for current carrying capacity.

v) Selection of conductors for volt drop.

vi) Connection of single pole devices for protection or switching in phase conductors only.

vii) Correct connection of accessories or equipment.

viii) Presence of fire barriers, suitable seals and protection against thermal effects.

ix) Methods of protection against electric shock.

x) Prevention of mutual detriment influence.

xi) Presence of appropriate devices for isolation and switching correctly located.

xii) Presence of under-voltage protective devices.

xiii) Choice and setting of protective and monitoring devices (for protection against indirect contact and/or protection against over-current).

xiv) Labelling of protective devices, switches and terminals.

xv) Selection of equipment and protective measures appropriate to external influences.

xvi) Adequacy of access to switchgear and equipment. xvii) Presence of danger notices and other warning signs. xviii) Presence of diagrams, instructions and similar information. xix) Erection methods.

TESTING

i) Continuity of protective conductors including main and supplementary equipotential bonding.

ii) Continuity of final circuit conductors. iii) Insulation resistance. iv) Site applied insulation resistance. v) Protection by separation of circuits. vi) Protection against direct contact by a barrier or an enclosure provided

during erection . vii) Insulation of non-conducing floors and walls. viii) Polarity. ix) Earth electrode resistance. x) Earth fault loop impedance. xi) Prospective fault current xii) Functional testing

REPORTING

All prescribed results shall be recorded in full accordance with the requirements of BS7671. The developer’s attention is drawn to the fact that It is particularly pointed out that any error whatsoever will result in the certificate being rejected.

The developer shall give not less than 7 days’ notice to the council of his

intention to carry out any of the tests specified and the council shall be given the opportunity to witness such test.

The Contractor shall furnish the council with the original completed certificate, to verify compliance with BS7671 upon satisfactory completion of the inspection and tests.

CERTIFICATION

(a) Following the inspection and testing of new and altered installations, a test and inspection certificate shall be submitted to the council on Forms SSP1 and SSP2. The certificate shall include the serial numbers of the instruments used for the tests.

(a) Any defects or omissions revealed by the tests shall be reported to the council without delay and no certificate will be issued until the defects or omissions have been made good. (b) In the event of any test indicating failure to comply, that test and those preceding, the results of which may have been influenced by the fault indicated, shall be repeated after the fault has been rectified.

TEST AND INSPECTION CERTIFICATE - HIGHWAY POWER SUPPLIES AND STREET FURNITURE - INTERNAL WIRING

ROUTE / SEQ: STREET NAME / SITE: AREA:

Column/Sign/Bollard and Location

Visual Inspection Satisfactory?

System Earthing Type

Circuit Protection Continuity of Protective Conductors Satisfactory?

Insulation Resistance MegOhms (min value) 500 volt test

Polarity Satisfactory?

Phase/Earth Fault Loop Impedance (Ohms0

Any Other comments

Fuse BS No/MCB Class

Rating (amps)

TEST INSTRUMENT NUMBERS:

TEST AND INSPECTION CERTIFICATE- CABLE NETWORKS ROUTE/SEQ: AREA: STREET NAME/SITE: SOURCE: CIRCUIT: CABLE TYPE:

CIRCUIT PROTECTION: Fuse BS No MCB Class: Rating (A): Ext. Impedance (Ze): Ohms

PROSPECTIVE SHORT CIRCUIT CURRENT AT ORIGIN: kA

HOW DETERMINED: Calculation / Measurement / Enquiry

INITIAL VERIFICATION: Satisfactory: YES NO COMMENTS:

CONTINUITY OF PROTECTIVE CONDUCTORS: Satisfactory: YES NO COMMENTS:

INSULATION RESISTANCE (Meg.Ohms): Test Instrument No. COMMENTS:

POLARITY: Satisfactory: Yes NO Test Instrument No.

EARTH FAULT LOOP IMPEDANCE (Ohms): Test Instrument No. Source: Remote End: Volt Drop:

VOLTAGE: Test Instrument No. Source: Remote End: Volt Drop:

COMMENTS:

I CERTIFY TO THE BEST OF MY KNOWLEDGE AND BELIEF THAT THE CABLE NETWORK AT THE ABOVE SITE HAS BEEN INSPECTED AND TESTED IN ACCORDANCE WITH BS 7671 AND THE ILE CODE OF PRACTICE FOR ELECTRICAL SAFETY IN PUBLIC LIGHTING OPERATIONS AND THAT THE RESULTS ARE SATISFACTORY IN RESPECT OF THE ITEMS DETAILED ABOVE. SIGNED__________________________________ DATE_________________________ PRINT NAME___________________________

APPENDIX ‘E’ – DNO REQUIREMENTS: ENG. RECOMMENDATION G39 Course 1 Attendance at DNO Approved Insertion and Removal of Fuse Course (Engineering Recommendation G39/1) Date Attended: NOTE: ONLY OPERATIVES WHO HAVE SUCCESSFULLY COMPLETED THE ABOVE COURSE WILL BE ALLOWED TO WORK ON STREET LIGHTING INSTALLATIONS. Level of Authorisation (Delete whichever of the following items is not applicable). Level 1 (A) (i) Lamp replacement and cleaning purposes

(ii) Painting of structures

(B) (i) Replacement of the local fuses protecting the equipment

(ii) Replacement and connecting control gear and associated components, including controllers

Level 2 (All work in Level 1 plus:) (A) (i) The supervision of erection of lighting columns and fittings in the vicinity

of the DNO's overhead lines

(B) (i) The installation of cables, lighting columns, signs, etc., where live underground cables may be present.

Level 3 (All work in Levels 1 and 2 plus:) (A) (i) Testing of installations

(ii) Wiring of installations to the outgoing side of the DNO's cutout. (iii) Maintenance of installations (iv) Initial insertion, removal and replacement of the DNO's cutout fuses,

subject to the DNO’s direction (limited to public lighting fuses only).

(B) (i) Necessary work on live equipment

(ii) Nominated special duties for which they have received training

Name of Competent Person (BLOCK LETTERS) Name and Address of Employer Approved by .................................................................................. Position ............................................................... Dated... ... ... Received .......................................................... Dated... ... ...

APPENDIX ‘F’ – SSP4 INDEMNITY FORM In consideration of (Insert name of DNO) .......................................................................... permitting(Company Name).............................................................................................. to do work on or affecting (DNO)....................................................................................... equipment at ……………………………………………………………………………………………………… ……………………………………………………………………………………………………… ……………………………………………………………………………………………………… ……………………………………………………………………………………………………… ……………………………………………………………………………………………………… The Company hereby indemnify (DNO)............................................................................... from and against any actions, costs, claims or demands, howsoever and from whomsoever arising, directly or indirectly as a result of work undertaken by the Local Authority or company or their delegates on or affecting the above mentioned equipment, unless resulting from the negligence of (DNO)...........................or its servants or agents. And from and against all costs, damages and expenses arising as a result of damage to any (DNO).....................................equipment caused directly or indirectly as result of work undertaken by the Company or their delegates on or affecting the above mentioned equipment. Signed…………………………………… Authorised to sign on behalf of and to bind

(Company Name)…………………………………………………………………..

APPENDIX G - MILTON KEYNES BOROUGH MAP