Davis Langdon & Everest details a range of costs for internal and external lighting and for electrical services distribution. All rates are appropriate for a medium-sized commercial contract let in outer London during April 2004 WIRING Low-voltage power circuits ú/m l Three phase four wire circuit; PVC insulated cable, black enamelled steel conduit (average circuit length 20m) - mm 2 cable; 20mm conduit 14 - mm 2 cable; 20mm conduit 15 - m 2 cable; 25mm conduit 17 l Three-phase, four-wire circuit; four-core M I C C /PVC cable; terminations and accessories (average circuit length 20m) - mm 2 cable 10 - mm 2 cable 12 - m 2 cable 17
WIRING ACCESSORIES l Local switches; 10 amp flush-mounted plate switches; ú each white plastic fronted; 16mm metal box.
? 1 gang 1 way, single pole 10 - 1 gang 2 way, single pole 12 - 2 gang 2 way, single pole 17 l Local switches; 6 amp metal clad surface-mounted switch; one way - 1 gang 15 - 2 gang 19 - 6 gang 47 l Local switches; 6 amp modular type switch; galvanised steel box; bronze/satin chrome cover plate; switch; one way - 1 gang 22 - 2 gang 28 - 6 gang 75 l Dimmer switches; rotary action - 1 gang, 1 way, moulded plastic case; 250 watt 20 - 1 gang, 1 way, metal clad; 400 ú50 Socket outlets; 13 amp 1 gang 2 gang watt l Surface-mounted plastic box and cover plate - unswitched 12 15 - switched 13 16 l Metal clad; galvanised steel box and coverplate - witched 14 18 - tched 15 21 l Flush-fixed galvanised steel box, plastic cover plate - tched 13 16 l Galvanised steel box, satin chrome cover plate - tched 17 23
INTERIOR LIGHTING Supply only prices for luminaires Fluorescent lighting for commercial applications Surface-mounted luminaires, including lamps Opal user Prismatic troller ú/each ú/each l 1,200mm long; 2 x 36W lamps 46 51 l 1,600mm long; 2 x 58W lamps 51 56 Moisture proof luminaires with fibre reinforced polyester body; protection to IP65; clear polycarbonate diffusers; excluding lamps ú/each l 1,500mm long; 1 x 58W lamp 60 l 1,500mm long; 2 x 58W lamp 70 Recessed fluorescent luminaires for suspended ceilings, excluding lamps l Aluminium divergent reflector to LG3 600 x 600mm; 4 x 18W lamps - switchstart 85 - electronic control 100 1,200 x 300mm; 2 x 36W lamps - switchstart 75 - electronic control 90 l aluminium highly specular controller to LG3 600 x 600mm; 4 x 14W T5 lamps - high frequency 105 - high frequency - dimmable 120 1,200 x 300mm; 2 x 28W T5 lamps - high frequency 85 - high frequency - dimmable 100 Recessed downlighters for suspended ceilings; excluding lamps l Low-profile, low-voltage downlight; 70mm diameter;
transformer, 1 x 35W capsule lamp 30 - 70 l Plain open cone; 220mm diameter; 2 x 18W fluorescent lamps; electronic ballast 85 - 155 l Fully recessed tungsten halogen wall washer; 135mm diameter; 1 x 75W lamp 85 - 155 EXTERIOR LIGHTING Supply only prices for luminaires (lamps included as described) ú h Wall-mounted luminaires l Polypropylene housing, polycarbonate opal diffuser, control gear; 11W compact fluorescent lamp - ng accessories 25 - with photocell 40 l Shallow plastic luminaire, dust/splash proof polycarbonate diffuser; IP54 protection; control gear; 2D-28W lamp 55 - 75 Bulkhead luminaires l Aluminium cast bulkhead fitting; toughened glass prismatic diffuser, weather protection to IP55; 70W high-pressure sodium lamp (lamp excluded) 105 l Die cast aluminium hemispherical bulkhead fitting; opal polycarbonate diffuser; 4 x 26W compact fluorescent lamp (lamp excluded) 210 Bollard mounted luminaires l Circular section vandal resistant bollard; polycarbonate screen and aluminium louvres; control gear; 70W high pressure sodium lamp (lamp excluded) 255 - 410 Floodlights l Surface mounted floodlight; GRP body; asymmetric aluminium reflector; weather protection to IP55; 150W tungsten halogen lamp 50 - 150 l Surface mounted floodlight; GRP body; asymmetric anodised aluminium reflector; weather protection to IP65; 250W high pressure sodium lamp 150 - 250 Outdoor recessed l Recessed, die cast aluminium, with tempered glass lens;
weather protection to IP67, 18W Compact fluorescent lamp 80 - 205