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Costs: lighting and electrics

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Davis Langdon & Everest details a range of costs for internal and external lighting and for electrical-services distribution. Costs of luminaires are given on a supply-only basis, with lamps included where indicated. All rates are appropriate for a medium-size commercial contract let in outer London during March 2003.

INTERIOR LIGHTING Supply-only prices for luminaires Fluorescent lighting for commercial applications Surface mounted luminaires, including lamps Opal Prismatic diffuser controller £ each £ each 1,200mm long; 2 x 36W lamps 45 50 1,600mm long; 2 x 58W lamps 50 55 Moisture-proof luminaires with fibre reinforced £ each polyester body; protection to IP65; clear polycarbonate diffusers; excluding lamps 1,500mm long; 1 x 58W lamp 60 1,500mm long; 2 x 58W lamp 70 Recessed fluorescent luminaires for suspended ceilings, excluding lamps Aluminium divergent reflector to LG3; 600 x 600mm; 4 x 18W lamps switchstart 80 electronic control 95 1,200 x 300mm; 2 x 36W lamps switchstart 70 electronic control 85 Aluminium highly specular controller to LG3 600 x 600mm; 4 x 14W T5 lamps high frequency 100 high frequency - dimmable 115 1,200 x 300mm; 2 x 28W T5 lamps high Frequency 80 high Frequency - dimmable 95 Recessed downlighters for suspended ceilings; excluding lamps Low profile, low voltage downlight; 70mm diameter; transformer, 1 x 35W capsule lamp 27-65 Plain open cone; 220mm diameter; 2 x 18W fluorescent lamps; electronic ballast 80-150 Fully recessed tungsten halogen wall washer; 135mm diameter; 1 x 75W lamp 80-150

EXTERIOR LIGHTING Supply-only prices for luminaires (lamps included as described) Wall-mounted luminaires £ each Polypropylene housing, polycarbonate opal diffuser, control gear; 11W compact fluorescent lamp;

fixing accessories 25 with photocell 40 Shallow plastic luminaire, dust/splash-proof polycarbonate diffuser; IP54 protection;

control gear; 2D-28W lamp 55-75 Bulkhead luminaires Aluminium cast bulkhead fitting; toughened glass prismatic diffuser, weather protection to IP55; 70W high-pressure sodium lamp (lamp excluded) 100 Die-cast aluminium hemispherical bulkhead fitting;

opal polycarbonate diffuser; 4 x 26W compact fluorescent lamp (lamp excluded) 200 Bollard-mounted luminaires Circular section vandal-resistant bollard;

polycarbonate screen and aluminium louvres;

control gear; 70W high pressure sodium lamp (lamp excluded) 250-400 Floodlights Surface mounted floodlight; GRP body; asymmetric aluminium reflector; weather protection to IP55;

150W tungsten halogen lamp 50-150 Surface mounted floodlight; GRP body; asymmetric anodised aluminium reflector; weather protection to IP65; 250W high pressure sodium lamp 150-250 Outdoor recessed Recessed, die-cast aluminium, with tempered glass lens; weather protection to IP67 18W compact fluorescent lamp 75-200

CABLED SERVICES Supply and fix prices Wiring Low-voltage power circuits £/m Three-phase four-wire circuit; PVC-insulated cable, black-enamelled steel conduit (average circuit length 20m) 1.5mm 2cable; 20mm conduit 13 2.5mm 2cable; 20mm conduit 14 6mm 2cable; 25mm conduit 16 Three-phase four-wire circuit; four-core MICC/PVC cable;

terminations and accessories (average circuit length 20m) 1.5mm 2cable 9 2.5mm 2cable 11 6mm 2cable 16 Wiring accessories £ each Local switches; 10 amp flush-mounted plate switches;

white plastic fronted; 16mm metal box 1 gang 1 way, single pole 9 1 gang 2 way, single pole 11 2 gang 2 way, single pole 15 Local switches; 6amp metal-clad surface-mounted switch; one way 1 gang 14 2 gang 18 6 gang 45 Local switches; 6 amp modular type switch;

galvanised steel box; bronze/satin chrome cover plate; switch; one way 1 gang 21 2 gang 27 6 gang 72 Dimmer switches; rotary action 1 gang, 1 way, moulded plastic case; 250W 19 1 gang, 1 way, metal clad; 400W 50 Socket outlets; 13 amp 1 gang 2 gang £ each £ each Surface-mounted plastic box and cover plate;

unswitched 12 15 switched 13 16 metal clad; galvanised steel box and coverplate;

unswitched 14 18 switched 15 21 Flush fixed galvanised steel box, plastic cover plate; switched 13 16 galvanised steel box, satin chrome cover plate; switched 17 23

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