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Street Lighting - Electrical Equipment for Road Lighting
- Lanterns shall be selected from Table 1 (Below). Where a choice of luminaire wattages is available for a particular lighting category within the Description of Lighting Units to Use Table the final selection will be based on: road widths, ease of maintenance and installation requirements. Luminaires shall be the same in any one street.
- Lantern bowls and refractors shall be U.V. stabilised.
- Lantern Photometric data in TM14 form shall be provided to the Planning Supervisor for inclusion in the Health and Safety File
- High pressure sodium lamps (SON-TP) shall comply with BS 6193 and International Standard IEC 662 SON-TP lamps, supplied by Philips or GE, shall be used for all new SON installations.
SON-TP lamps shall have the following minimum values of lumen output after 100 hours of operation:-
- All columns shall be wired in minimum 1.5 mm 2 twin and CPC cable between the cut-out and lantern.
- Each lamp and photocell shall be indelibly marked with the date of installation.
- All photoelectric cell units shall have an Elexon ‘Unmetered Supplies Operational Charge Code’ and have an approved total circuit wattage equal to or less than 0.25w.
- Street lighting cut-outs shall be moulded from flame-retardant and vandal-resistant material such as A.B.S or similar and be sealed to prevent the ingress of moisture and dust (IP44 minimum)
- Within street lighting cut-outs all terminal blocks, pins and spring clips shall be made of brass and electroplated for temperature rise stability
- Street lighting cut-outs shall house two fuses and a single neutral bridge mounted within a removable fuse carrier which, when removed, shall give double pole isolation to each fused outgoing circuit
- Street lighting cut-outs shall incorporate two live and one neutral block for up to 2 x 25mm 2 stranded copper or round aluminium conductors, and shall be securely fitted within the base compartment to feed a secondary or tertiary circuit
- Outgoing live and neutral terminals in street lighting cut-outs shall have dedicated terminals for cables up to 6mm2
- Cables shall enter and exit street lighting cut-outs at the bottom via 2 No. 20mm diameter rubber grommets within an internal A.B.S. plate. Where necessary a suitable cable entry box shall be provided with 3 No. 20mm diameter grommets fitted to ease cable termination. The cut-out shall comply with the requirements set out in BS 7671, 1992 and the Electricity at Work Regulations 1989
- H.R.C. fuses shall comply with BS 1361
- H.R.C. fuses shall comply with BS 88 -1 for street lighting cut-outs LST (TAG) type fuses with 38mm fixing centers
- H.R.C. fuses to BS 88 - 2, type RH 440 volt
- H.R.C. fuses to BS 1361, type 11B
- Cables, PVC insulated and PVC sheathed shall be manufactured to test requirements and dimensions for operation at voltages up to and including 600 volts to earth and 1000 volts between conductors and shall be in accordance with the British Standard BS 6004 for PVC cables (non armoured) for electric power and lighting. The following cable types and sizes shall commonly be used:-
a) 1 5 sq mm 3c PVC cable
b) 1.5, 2.5 or 6.0 sq mm 2c and ccp PVC cable
- PVC insulated Steel Wire Armoured cable shall be in accordance with BS 5467
- Flexible insulated sleeving shall be manufactured to BS 2846
- A separate dedicated earth terminal block shall be fitted to the baseboard of each lighting column/sign pole, and shall be:-
a) single pole, 5 way
b) manufactured from brass and electro tin plated
- The whole of the installation must be effectively earthed in accordance with BS 7671. Crimped connections are to be used where possible.
- Feeder pillars shall be manufactured from 3mm thick mild steel unless otherwise stated, have rounded corners of 17mm minimum radius, a fully lined door aperture to prevent ingress of rain or leverage of door by vandals, entry of cables via a 300mm minimum rooted base, stainless steel earthing terminal, non-hydroscopic backboard of 12mm minimum thickness and shall comply with lP34 of BS 5490
- Feeder pillar doors shall be fabricated from 3mm thick mild steel and be flush fitting with 17mm radiused corner. The door shall be positively secured by two stainless steel threaded bolts
- Feeder pillars and doors shall after drilling and fabrication be treated as specified on the page that deals with Protection of Steelwork Against Corrosion.
Index of Relevant Pages
- General Introduction
- Adoption and Accrual
- British Standards
- Commuted Maintenance Payments
- Design and Installation Considerations
- Electrical Equipment for Road Lighting
- Electrical Equipment for Traffic Signs
- Electrical Inspection and Testing Certificate 'Type A'
- Electrical Inspection and Testing Certificate 'Type B'
- Electrical Inspection and Testing Procedures
- Energy Supply
- Fault Reporting
- Light Pollution and Nuisance
- Lighting and other Design Considerations
- Lighting Levels
- Location of Lighting Units and Feeder Pillars
- Manholes, Catchpits, Inspection Chambers and Draw Pits
- Protection of Steelwork Against Corrosion
- Relevant Standards
- Road Lighting Columns and Brackets
- Service Duct Requirements
- Site Records and Data Sets
- Standard Specifications
- Surface Treatment of the Lighting Columns
- Technical Approval
- Traffic Safety and Management
- Traffic Signs
- Private Development Section Home Page
- Adoption of Highways
- Agreements under Section 278
- Bond (Surety)
- Considerate Contractors Scheme
- Contact Us
- Creation of New Public Highways (Section 38 Agreement)
- Development Permits
- Environmental Protection
- Highway Design and Technical Approval
- Highway Lighting
- Highway Safety
- Road Making (Costs)
- Safety Audits
- Site Inspection
- Technical Documents
- Traffic Regulation Orders
- Works Notices and Traffic Management during the Works