procurement of various spares for high mast system installed at chp-iv, stps, mppgcl, sarni. procurement of various spares for high mast system installed at chp-iv, stps, mppgcl, sarni. , various spares for high mast system installed at chp-iv , 350 watt led light fittings specially design for high mast lighting purpose to focus proper light from 30 mtr. height high mast. fitting should be extruded aluminium housing cum heat sink made of pressure die cast aluminium body with end covers and high power discrete leds with secondary lenses for optimum optical performance, different beam distribution should be available to optimized utilization of energy as per application areas. driver with in-built protection against surge voltage ( up to 5kv ) , open / short-circuit. colour: - golden yellow suitable for coal dust. , outdoor stand mounted feeder pillar with 32a tpn mcb incomer, single dial time switch, 25a tp contactor for automatic switching of luminaries, power tool control with 2 nos. 9a contactors and raise lower push button, incoming 35sq.mm and outgoing 16 & 2.5 sq. mm terminals. , 6w led type single dome aviation obstruction light colour: -red colour.