annual petty electrical maintenance works of cbri institute electrical items - 1 wiring for light point / fan point / exhaust fan point / call bell point with 1.5 sq mm frls pvc insulated copper conductor single core cable in surface / recessed steel conduit with piano type switch , phenolic laminated sheet , suitable size ms box & earthing the point with 1.5 sq mm frls pvc insulated copper conductor single core cable of polycab / havells / kei cables / rr kables / phenolex make isi marked 1100 volts grade for group c point including ceiling rose / lamp holder as required complete. 2 wiring for circuit / submain wiring along with earth wire with the following sizes of frls pvc insulated copper conductor single core cableof polycab / havells / kei cables / rr kables / phenolex make isi marked 1100 volts grade in surface / recessed steel conduit as required. 3 a ) 2x2.5 sq mm + 1x2.5 sq mm earth wire 4 b ) 2x4 sq mm + 1x4 sq mm earth wire 5 c ) 2x6 sq mm + 1x6 sq mm earth wire 6 s / f metal box of 150mm x 75 mmx 60mm deep ( nominal size ) on surface or in recess with suitable size of phenolic laminatedsheet cover in front including p / f 3 pin 5 / 6 amps socket out let & 5 / 6 amps piano type switch , connection , painting etc as required. 7 s / f metal box of 180mm x 100 mmx 60mm deep ( nominal size ) on surface or in recess with suitable size of phenolic laminatedsheet cover in front including p / f 6 pin 5 / 6 & 15 / 16 amps socket out let & 15 / 16 amps piano type switch , connection , painting etc as required. 8 excavatingtrenches of required width fortaking out existing cable from the trench upto 1.5 m depth including getting out the excavated soil, relaying the cable in the same trench with existing protective coveringincludingreturning the soil as required in layers not exceeding 20cm in depth including consolidating each layer by ramming, watering etc. and disposing surplus excavated soil as directed with in a lead of 50m, dressing of sides all as required for pipe, cable etc not exceeding 80mm dia. 9 overhauling of ceiling fan upto 1400mm / exhaust fan upto 450mm / table fan / padestal fan / wall fan of any size including supply and replacement ofball bearing / bush, capacitor, split pin, rubber reel, shaft, nut & bolts, 2x1.5 sqmm copper connecting wire, cleaning, varnishing, revolving attachment and step regulator with resistance of wall fans and pedestal fans etc complete in all respect as required. 10 rewinding of ceiling fan upto 1400mm / exhaust fan upto 450mm / table fan / padestal fan / wall fan of any size with super enameled copper wire, insulating material, varnishing, backingetc complete in all respect as required. 11 providing of skilled manpower in electrical trade for attending day to day complaints of electrical maintenance work for repair and replacement of all electrical wiring, accessories in non workingelectrical fittings and fixtures ( such as main boards, fans, geysers, heaters, blowers, switches, sockets, light fittings, motors, starters, street lights, energy meters in residential and non residential buildings, underground and overhead line distribution networkincluding service mains, dg set operation including filling of diesel etc. ) and all other electricalwork as assigned by site incharge on all the 365 days of year. services are also required during night on all days. ( 8 working hours shall be treated as one manday ) .