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| 1 | Laying of one number PVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade of following size direct in ground including excavation, sand cushioning, protective covering and refilling the trench etc as required. |
| 2 | Above 185 sq. mm and upto 400 sq. mm |
| 3 | Laying of one number additional PVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade of following size direct in ground in the same trench in one tier horizontal formation including excavation, sand cushioning, protective covering and refilling the trench etc as required. |
| 4 | Above 185 sq. mm and upto 400 sq. mm |
| 5 | Supplying and making cable route marker with cement concrete 1:2:4 (1 cement : 2 coarse sand : 4 graded stone aggregate 20 mm nominal size ) of size 60 cm X 60 cm at the bottom and 50 cm X 50 cm at the top with a thickness of 10cm including inscription duly engraved as required. |
| 6 | Supplying and laying 25 mm X 5 mm G.I strip at 0.50 metre below ground as strip earth electrode, including connection/terminating with G.I. nut, bolt, spring, washer etc. as required.(Jointing shall be done by overlapping and with 2 sets of G.I. nut bolt & spring washer spaced at 50mm) |
| 7 | Supplying and fixing 25 mm X 5 mm G.I. strip on surface or in recess for connections etc. as required |
| 8 | Supply, installation, testing & commissioning of outdoor type floor mounted LT POWER CONTROL CENTRE (LTPCC) with 800A,TPN Aluminium bus bar etc., The PCC shall be compartmental type with IP 55 protection. The details of the power feeders & other accessories will be asfollows:Incoming :a. 630A, 4 pole, 415V, 50Hz, 25 kA MCCB, with RHOM havingmicroprocessor based release, S/C, O/C and E/F protections.- 1 No b. Multi data meter having current, voltage, frequency, power factor, kW etc,. with suitable rated CTs, with necessary terminal block having short links facility, indication lamps for showing on / off / trip indications of incomer feeder with necessary control MCB. -1 Set.c. Electronic three phase trivector meterwith suitable rated, 0.5 class accuracy CT\"s with necessary terminal block having short links facility.-1 Setd. Mains Indication lamps with necessary control MCB- 1 set Outgoing :400A, 3 pole, 415V, 50Hz, 25 kA MCCB, with RHOM havingadjustable thermal magnetic release, S/C & O/C protections.-2 Nos 300A, 3 pole, 415V, 50Hz, 25 kA MCCB, with RHOM havingadjustable thermal magnetic release, S/C & O/C protections -2 Nos |
| 9 | All the above switch gears and its accessories shall be mounted in suitable size of enclosure made out of using 2 mmthick CRCA sheet steel for load bearing & 1.6 mm for non load bearing members as per standard practice.All the MCCBs incoming & out going sides shall be inter connected using suitable rated bus bar with necessary spreader links as required. The provision shall be made available for terminating of cable of size 2R x 4C x 300 Sq.mm. & 4C x 240 Sq.mm Al.armoured XLPE cable for incoming & alloutgoing feeders respectively at the bottom. Also necessary gland plates shall be provided using 3 mm thick sheet steel as required. All the cubical doors shall be earthed as per standard practice. Also aluminium earth bar shall be provided as per standard practice. The enclosure shall be painted with powder coatedpaint as per standard practice. The LT PCC shall be installed using necessary brick construction cement concreate pedestals andangle iron frame fasteners etc, all complete as per the site requirement. The GA shall get approval before fabrication. |
| 10 | Replacement of existing 400A TP MCCB with 630A TP MCCB on the Feeder piller with retrofit work. The existing MCCB has connected one of the out going feeder of feeder piller. The existing MCCB incoming side aluminium bus bar has tapped from the main bus bar and out going side bus bar shall extended up to cable alloy chamber to terminate the cables. The capacity of bus bar both incomming and outgoing side shall be 400A. The bus bar length shall be 300mm each phase approximate on both the side. The same shall be replaced with 630A capacity. The necessary rotary operated handle mechanism (ROHM) shall be provided. The existing make and model no of 400A MCCB shall be ABB Tmax T5N400 (LSIG). The same make and model no: T5630 (LSIG) for 630A shall be installed. |
| 11 | Disconnection and re-routing of existing 2R x 4C x 240sq.mm aluminium cable from feeder piller and supply and making end termination with brass compression gland, aluminium tubular end terminals as required. |
| 12 | Supply of following size ofmultistrand aluminum conductor, XLPE Insulated, cores laid up, tape PVC inner sheathed, flat GI armoredwith PVC sheathed power cable of 1.1kV grade as per IS - 7098 (part-I) - 1988 as required. |
| 13 | 4Cx240Sq.mm(A2XFY) |
| 14 | 4Cx300sq.mm(A2XFY) |
| 15 | Supplying and making end termination with brass compression gland and aluminium lugs for the following sizeXLPE insulated and PVC sheathed aluminium conductor cable (A2XFY) of 1.1Kv grade as required. |
| 16 | 4Cx240Sq.mm(A2XFY) |
| 17 | 4Cx300sq.mm(A2XFY) |
| 18 | Supply, installation, testing & commissioning of maintenance free earthing system using 3000 mm length, 77-80 mm outer dia copper bonded M.S. Pipe as primary electrode. The Copper bonded pipe electrodes shall be of molecularly bonding of pure electrolytic copper (99.9%) with the thickness/bonding of ranging from 50 to 100 microns.The hollow space of the electrode shall be duly filled using high conductive and non-corrosive compound to withstand fault current lands on the electrode. Both the ends of the pipe / electrode shall be permanently sealed and the top portion of the earth electrode shall be provided with extended leadholes on the terminal for connecting to the earth terminals. The electrode shall be directly buried in the ground. The earth pit shall be refilled using environment friendly low resistance grounding minerals having a combination of graphite & natural earth minerals to form a low resistance zone all round the electrode. The required quantity of water shall be poured inside the earth pit as per the OEM recommendations as required. The necessary earth chamber shall be provided using heavy duty weather proof plasticcoverwith locking facility. |
| 19 | Supply of 2000mm(L) x 1000mm(W) x 2mm thickness Insulating mats made of Elastomer (a generic term that includes rubbers, latex and elastomeric compounds that may be natural or synthetic or a mixture or a combination of both) the insulating mate shall be made out of elctromer with anti skid surface and without matallic derivatives. the mat shall be high dielectric strength and High insulation resistance. voltages up to 3.3kV ac as per IS15652 as required, |
