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Street Lighting - Road Lighting Columns and Brackets

Road Lighting Columns and Brackets

Road Lighting columns and brackets shall be designed, constructed, assembled, located and erected in compliance with Series 1300 of the Specification.

Lighting columns shall be designed to carry the attachment loads in Table1 (below), in addition to the public lighting equipment.

Table 1: Design Requirements of Columns and Posts in relation to Signs (additional or otherwise) to be attached

Column / Post Height (m) Sign Size Sign Position in accordance with BD26199
Up to and including 6m 0.5m sq Symmetrical or Offset
Over 6m and up to and including 9m 1.0m sq Symmetrical or Offset
Over 9m 2.0m sq Symmetrical or Offset

In the City Centre and District Centres the use of Strengthened Columns may be required as directed by the Authority. Paint systems appropriate for these columns shall be in accordance with the specifications on the Protection of Steelwork Agains Corrosion page, or as directed by the Authority and / or the Service Provider.

Each column shall be fitted with an identification badge and numbered in accordance with a numbering schedule to be provided by the Service Provider. The identification label shall include the following detail:

  • The unique reference number for that lighting column.
  • The joint Authority and Service Provider logo for the Project; and
  • The telephone number for the Help Desk

Labels shall be positioned at a height of 2 metres above the ground.

Labels on Non Standard Equipment shall be agreed in consultation with the Service Provider.

Columns shall be constructed from galvanised steel and be of the planted root type unless otherwise agreed in writing by the Authority. The shaft shall consist of one continuous length of tube without transverse weld.

Columns shall be of straight circular shaft type with a single step at the top of the base compartment.

Refer to the requirements detailed in Table 2 - Table of Columns.

Surface treatment of traffic signposts shall be specified in the Protection of Steelwork Against Corrosion page, over their entire length.

The internal and external surfaces to lighting column roots shall be additionally protected as specified in the Protection of Steelwork Against Corrosion page.

Table 2: Table of Columns

Column Type Loading Post Top Single Arm Bracket Twin Arm Bracket Column
Drawing No
6m raise and lowering column In accordance with table A13/1/1 Y N N CC5594
6m Column post top In accordance with table A13/1/1 Y N Up to 1.5m CC5426
7m Column post top In accordance with table A13/1/1 Y N Up to 1.5m CC5428
8m Column post top In accordance with table A13/1/1 Y N N CC5428
10m Column post top In accordance with table A13/1/1 Y N N CC5429
10m Column single arm In accordance with table A13/1/1 N Up to 1.5m N CC5430
12m Column single arm In accordance with table A13/1/1 Y* Up to 1.5m N CC5430
10m Column double arm In accordance with table A13/1/1 N N Up to 1.5m CC5432
12m Column double arm In accordance with table A13/1/1 N N Up to 1.5m CC5432
10m Column single arm – Heavy Duty In accordance with table A13/1/1 Y* Up to 1.5m N CC5431
12m Column single arm – Heavy Duty In accordance with table A13/1/1 Y* Up to 1.5m N CC5431


No brackets shall be used on new lighting columns in residential areas except for column heights of 8m and above unless agreed in writing in advance by the Authority.

Columns shall be provided with non-hygroscopic baseboards, minimum thickness 15mm, secured in the base compartment. Baseboard fixings shall be recessed below the surface of the board so as not to impede the fixing of electrical equipment to the baseboard.

The bottom of the door opening shall not be less than 400mm above ground level. The door opening shall be free from sharp edges and burrs.

Foundations for planted columns shall be in accordance with PD6547:2004 plus A1:2009 and manufacturer’s instructions.

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 shall be cadmium plated or galvanised.

6mm diameter brass (or stainless steel) earthling terminal complete with two brass washers and a brass nut and locknut shall be located both in the base compartment (so positioned as to be readily accessible through the door opening) and on the door, (to be supplied fitted).

Raising and lowering lighting columns shall be provided where access considerations demand. Such columns shall be mid-hinged.

All door locking mechanisms shall be lubricated and doors secured in position.
The use of passively safe lighting columns shall be agreed with the Service Provider at the preliminary design stage.

Passively safe lighting columns shall comply with BS EN 12767:2007.

The contractor shall complete column and bracket details in Table 3 below.

Table 3: Column & Bracket Details

Description

Details

Type of column base: Planted root Base Plate Flange Plate
Bracket Protection: (m) Single Double Post top fitting
Size, Length and Angle of lantern fixing: Spigot (mm)
Design Life (y)
10 min Mean Wind Velocity (m/s)
Terrain Category:
Max Altitude: (m)
Size of door opening: (m) Length Width
Number of door openings (nr)
Backboard size: (mm) Length Width
Planting Depth (mm)
Size of cable entry slot (mm) Length Width
Identification and Location marking
Type of corrosion treatment for planted root
Lantern type (kg) Manufacturer Model
Lantern windage area (m2) Weight (kg) Windage (m sq)
Lantern size (mm) Length Width Depth
Number of door keys (nr)
Embellishments Yes No


All columns shall, unless otherwise agreed in writing by the Authority, be manufactured by Valmont Stainton.