BANGLADESH POWER DEVELOPMENT BOARD TENDER ... - BPDB

(ii)Three phase plug socketOutdoor-:45.0 mAt least two plug sockets shall be installed within the vicinity of an indoor controlboard and no plug socket shall be installed with in a battery room.11.5 EMERGENCY LIGHTINGThe Contractor shall design DC emergency lighting and power supply system forthe power station, and illumination level of DC emergency lighting shall be asfollows.The lighting shall consist of 125 V DC operated incandescent luminaries.LocationIlluminationLevel (Lux)Control room and inside : 15of control packageInside of other package : 1The other area surrounding : 0.5GTG unitsAdditional emergency lighting arrangement, independent emergency light unitsoperated from built in charger and batteries charged by 230 V AC shall also beprovided strategically. Total ten units shall be included in the Tender.11.6 MISCELLANEOUS MATERIALS(1) Lighting PolesLighting poles shall comprise tubular or octagonal metal or reinforced concreteconstruction with a base of sufficient section to house an inspection trap, lockabledoor, cable entry and terminations suitable for the incoming cables and thesecondary cables feeding the light sources, all of which shall be supplied with thepole. All poles shall be suitable for burying to a depth of 1.5 m and have anadequate concrete foundation.Metal poles shall be either hot dip galvanised or covered with a bituminous baseprotective area with the fitting erected and a safety factor of 2.5 allowed.(2) Conduits PipesThe rigid steel conduit pipes shall be galvanised and have a minimum thickness of2.3 mm and minimum inside diameter of 16 mm.(3) Outlet Switches, Junction Boxes and FittingsGhorasal 200 MW to 300 MW Gas Turbine Peaking Power Plant Project (Vol-2 of 3)110