bids are invited for repair, maintenance, and installation of plant/ systems/equipments (version 2) - bsnl ed bg nit no 06 providing electrical maintenance works at various nbsnl bts sites under north west area phase 9 2 sadashiva nagar1 malleswaram 13th cross gokula y.. - laying of one number pvc insulated and pvc sheathed / xlpe power cable of 1.1 kv grade of size not exceeding 35 sq.mm in the existing .pvc/rcc/ hume/ stoneware/ metal gi pipe surface of wall as required. , supplying and making end termination with brass compression gland and aluminium lugs for following size of pvc insulated and pvc sheathed / xlpe aluminium conductor cable of 1.1 kv grade as required. a)4x25sq.mm , supplying and fixing of meter board made of 16g prefabricated powder coated 2 compartment ms box with sealing arrangement as per bescom specification top extended for rain protection fixing on surface of wall necessary insulators ryb sleeves bolt and nuts earthing the enclosure of size 225mm depth x 500mm width x 900mm height nominal size including providing a)10mm thick frp hylum sheet suitable for fixing bescom energy meter b) 63a 4 pole tpn mcb c) 100 s 3phase and neutral aluminium bus bar 350mm length with sealing arrangement d) 4x10 sqmm copper conductor cable from bus bar to meter and outgoing tpn mcb, fixing on surface of wall necessary hardware items earthing etc as required note: the work shall be carried out in coordination with bescom authority for obtaining power supply shut down , supplying and fixing following electrical items suitable for operation of 230v/415v 50hz ac supply i/c making necessary interconnections, testing, commissioning etc. as reqd. a) 3no 100 a aerial fuse cutout & 1no neutral link with dmc/frp sheet & suitable cl (bescom approved make) or s/s make , supplying and fixing, the following c curve type miniature circuit breaker / accessories suitable for operation on 415v/230v ac supply in the existing mcb dbs complete i/c making necessary interconnections, testing and commissioning etc complete as required [make: m/s l&t make].a) 63 a 4 pole mcb , b) 40 a 4 pole mcb , c) 32 a 2 pole mcb , d) 63a hrc fuse , supplying & fixing of 380 mm sweep heavy duty exhaust fan 900rpm suitable for operation on 230volts, 50hz, ac supply in the existing opening including making necessary inter-connections, supplying and fixing louvers for preventing rain water entry, testing and commissioning etc., complete as reqd (make: m/s havells / crompton / orient / usha/ge khaitan / almonard or ss make). , supplying & fixing analog timer with built-in no & nc contacts in a suitable size weather proof box on surface of wall for automatic control/operation of the existing exhaust fan i/c necessary internal wiring, testing, commissioning, etc., complete as reqd. [timer make: l&t, gic model : j648b1 or similar superior make] , restoring of minor electrical problem such as replacement of burnt wires cable disconnection of end terminations and reconnection at various locations tightening of all electrical connections at tpn db of bts room including making good the connections testing etc as required. , s&f the following led battens suitable for working on 230v 50hz ac supply etc., as required. a) 24watt 4ft led batten