day to day operation maintenance of internal external electrical installation including operation of pumps diesel generator set 4 nos elevators operation of fire fighting arrangement ac systems and cleaning of electrical equipments fixtur , operation & maintenance of water supply system including pump motor sets , valves . operation of fire fighting arrangement , ac system , 320 kva dg set ( as and when required ) , observation of sub-station including ht & lt gears , lt panel and transformer cleaning / guarding the equipments taking all safety measure as per ie rules , maintaining the electrical store , sweeping & cleaning the sub-station rooms , pump room , generator room , lift machin room , etc . maintenance of the record of electrical materials , making arrangement of ladder / scaffolding etc . supply of sundry materials at hidco bhaban , the above items are excluding the supply of spares , lamps , fittings etc . but includes labour cost for replacement the spares . the materials supplied departmentally against written requisition by the agency . the following 15 ( fifteen ) number personnel to be distributed in two shift ( 6 am - 2 pm , 2 pm - 10 pm ) may be change as per eic . total staff pattern: 1 ) skilled worker ( electrical ) - 10 nos . 2 ) semi-skilled worker ( electrical ) - 5 nos . , operation of 320 kva diesel generating set on / off of load as and when necessary for round the clock by supplying fuel , lubricant , etc . for smooth operation of the same in the interest of normal functioning of office activities in case of power cut or failure of normal power supply , whatever may be the reason thereof and also including maintenance of power line from alternator to output side of change over switch as per direction of engineer-in-charge . this item includes cost of sundry materials .