tender for power supply arrangement to air conditioners at nalco community center , nalco , damanjodi , suplying and laying of pvc insulated and pvc sheathed 1 . 1kv grade aluminium power cable conforming to is:1554 on excavted trench , direct on wall through pipes etc . as per direction of engineer-in-charge . cable size : 3 . 5cx50sqmm ayfy , supplying and laying of pvc insulated and pvc sheathed 1 . 1kv grade aluminium power cable conforming to is:1554 on excavted trench , direct on wall through pipes etc . as per direction of engineer-in-charge . cable size : 4cx10sqmm ayfy , laying of power cable up to 300sqm , cable shall be suppied by nalco , excavating trenches 800 x 400mm wide for laying of cable , supply and filling of sand 75mmbelo and 75mm above the cable with brick protection on three side of the cable , backfilling the trench and restoring to original safe , disposing the surplus earth to outside premises in all as in all kinds of soil . , termination of pvc insulated and pvc sheathed power cable of 1 . 1kv grade of following size , including supply of nickel plated double compression cable gland and crimping type socket , stripping of insulation , fixing of cable gland , core marking , crimping cable , including supply of all labour and material complete as required & as per direction of engr-in-charge cable size up to : 3 . 5c x70sqmm ayfy , termination of pvc insulated and pvc sheathed power cable of 1 . 1kv grade of following size , including supply of nickel plated double compression cable gland and crimping type socket , stripping of insulation , fixing of cable gland , core marking , crimping cable , including supply of all labour and material complete as required & as per direction of engr-in-charge cable size up to : 4c x25sqmm ayfy , earthing: supply , installation , testing and commissioning of class-b gi earth electrode of 50mm dia 3000mm long complete with earth pit with rcc cover with all necessary material including excavation of earth pit filling with layers of charcoal and salt , back filling providing necessary brick work slab cover , connection with gi strips including all labour and material complete as required and as per direction of engineer-in-charge . all earthpits shall be interconnected to form a earth grid and as per ie rules and as per is 3026 specification . on the top funel is to be provided with wire mesh of suitable size on the top of the funel . , supply and installation of earthing strips 25 x 6mm along trenches including excavation , cutting and fixing to wall , embedding inside walls and floors welding at joints , providing anti-corrosive paints of bitumen and jute covering for welding clamping , necessary hardware for connection etc . including all labour and material complete as required and as per direction of engineer-in- charge . , supply installation , testing and commissioning of mdb as per the following specification including termination of incoming and out going cable / conduits / pvc pipes / wires , required earth commection , glanding with supply of glands suitable for 3 . 5x50sqmm al , ar cable complete including transportation , labour , sundry material like rag bolt , cement etc . as required and as per the direction of eic . specification : pre wired tpn db , incomer : 100a tpn db , out going: 8 no tpn load contact mcb of 40a rating , bus bar 1 set witg suitable earth link with all componets for out going feeder . , supply and installation , testing and commissioning os 32a tpn mccb with sutable enclouser , supply and instllation feeder pillar 415 volts , 50hz , 250amps , out door type , tpn , fedder pillar , free standing type , with 4 legs with grout plate bolting design and enclosure made out of industrial grade high quality polycarbonate material having high impact and corrosion proof , fire retradent , weather proof with rain canopy at the top for protection against direct rain and with proper corner , base support , busbars etc . completely wired for ready to use . the details of switchgears are: a ) 250a switch fuse unit with fuse links as i / c with bus-bar arrangement and having 5 nos out going feeders , b ) 125a tpn: 1 no . ( switch fuse with fuse links ) , c ) 63 a tpn: 3 nos ( switch fuse with fuse links ) and d ) 100a tpn street light feeder: 1 no . with fuse links , isolator , 100a , power contactor , 24 hrs . digital timer having auto / manual facility .