Construction of New Power House Substation equipment works SH Replacement of BOCBs at Dimapur Airport

Amount

S/I/T/C of 11 KV Switch Board of VCB Panel of sheet steel, dust tight, vermin proof, totally enclosed cubicle type floor mounting horizontal drawout free standing extensible on both sides, suitable for indoor operation at 11 KV, 3 phase, 50 Hz AC system having 350 MVA for 3 Second rupturing capacity complete with all accessories such as shunt trip coil suitable for 24V DC Power Supply, motorised and manually operated spring assisted closing mechanism, auxillary contacts, etc., interconnections, earthing etc., as required and comprising of following:

Two Nos. (Incomers) of 800 Amps. rating VCB of 11 KV grade having PVC sleaved air insulated copper bus bars of 1000 Amps., capacity with suitable resin cast dual core CTs of ratio 100/50/5-5A with class 1 accuracy, resin cast PT of of ratio 11 KV/110 V with class 1 accuracy, complete with Microprocessor Based Numerical Relay of Areva Make P111 Model/Equivalent, Digital Meter of Conserve Make EM 6400/Equivalent, 7 LED Type ON/OFF/TRIP/Spring Indication Lamps, 7 LED Phase Indication Lamps, providing Mechanical and Electrical Interlock with Buscoupler, Push Buttons, ON/OFF/Trip Switch, Master Trip Relay, Thermostat Controlled Heaters, Hooter, Panel Lamp, Annunciation Window, cable entry provision suitable for 3 X 185 Sq.mm. XLPE cable etc. as required.

One Bus Coupler of 800 Amps. rating VCB of 11 KV grade having PVC sleaved air insulated copper bus bars of 1000 Amps., capacity with 7 LED Type ON/OFF/TRIP/Spring Indication Lamps, Push Buttons, ON/OFF/Trip Switch, Thermostat Controlled Heaters, Hooter, Panel Lamp, Annunciation Window, etc. as required.

2 Nos. (Outgoings) 800 Amps. rating VCB of 11 KV grade having PVC sleaved air insulated copper bus bars of 1000 Amps., capacity with suitable resin cast dual core CTs of ratio 80/40/5-5A with class 1accuracy, complete with Microprocessor Based Numerical Relay of Areva Make P111 Model/Equivalent, Auxillary Relays for WTI and OTI Alarm and Trip Digital Meter of Conserve Make EM 6400/Equivalent, 7 LED Type ON/OFF/TRIP/Spring Indication Lamps, 7 LED Phase Indication Lamps, providing Mechanical Castle Lock, Push Buttons, ON/OFF/Trip Switch, Master Trip Relay, Thermostat Controlled Heaters, Hooter, Panel Lamp, Annunciation Window, cable entry provision suitable for 3 X 185 Sq.mm. XLPE cable etc. as required.

All Above Sl.No. (1 to 1.3)

SITC of 15 Nos. of 2 Volt, 100 AH Exide Batteries [Totalling to 30V] of Model "PLANTE" or Equivalent with Initial Charging including providing and fixing MS Stand of suitable Size for all Batteries as required.

Supply of compact circular stranded Al conductor provided with conductor screening of semi-conducting compound XLPE insulated provided with insulation screening over individual cores, consisting of extruded semi-conducting compound followed by lapped semi-conducting copper tapes, cores laid together with suitable filters, in the interscripes covered with inner sheath by extrusion, galvanized flat steel strip armoured and overall PVC sheathed cable, suitable for 11 KV (UE) System conforming to IS 7098 (Part-II) 2011 as amended upto date and of following Size as required. 3 X 185 SQ.MM

Supply of nominal 2.5 mm thick (Width 1 Mtr) PVC synthetic, electric insulated mats conforming to IS 15652-2006 having Dielectric strength of 45 KV, no adverse effect of mineral oil, high insulation resistance (Minimum 1,00,000 M Ω on wet condition with 5 KV meggar) etc., as reqd.

Fixing of nominal 2.5/2.0 mm (Width 1 Mtr) thick PVC synthetic, electric insulated mats conforming to IS 15652-2006 along with suitable adhensive/chemibond, i/c providing water proofing of floor, (chipping of floor if required) sealing of all joints etc., as reqd.

Supplying and laying of 160 mm OD HDPE Pipe of PE 80 PN 6 ISI Marked along with all accessories like socket, bend etc., confirming to IS 4984 complete with fitting and cutting, jointing etc., direct in ground (1.2 mtr below the ground level) including excavation and refilling the trench but excluding sand cushioning and protective covering etc., as required.

Laying of one number PVC/XLPE insulated and PVC sheathed power cable of 11KV grade of size exceeding 120 sqmm but not exceeding 400 sqmm.in the existing RCC/Hume/STONEWARE/METAL/HDPE Pipe as required.

Laying of one number PVC/XLPE insulated and PVC sheathed power cable of 11KV grade of size exceeding 120 sqmm but not exceeding 400 sqmm in the existing masonary open duct as required.

Laying and Fixing of one number PVC/XLPE insulated and PVC sheathed power cable of 11KV grade of size exceeding 120 sqmm but not exceeding 400 sqmm on Surface as required.

Supplying and making indoor cable end termination with heat shrinkable jointing kit complete with all accessories including lugs suitable for the following size of 3 core XLPE aluminium conductor cable of 11 KV grade as required. 240 Sq.mm

Supplying and making Outdoor cable end termination with heat shrinkable jointing kit complete with all accessories including lugs suitable for the following size of 3 core XLPE aluminium conductor cable of 11 KV grade as required. 240 Sq.mm

Retrievel of one number PVC/XLPE insulated and PVC sheathed power cable of 11KV grade of size upto 300 Sqmm from the existing RCC/HUME/GI Pipe/STONEWARE/METAL/Duct etc., as required. Pipe/STONEWARE/METAL/Duct etc., as required.

Retrievel of one number PVC/XLPE insulated and PVC sheathed power cable of 11KV grade of size upto 300 Sqmm from ground including excavation and refilling the trench etc.. as required.

Retrievel of one number PVC/XLPE insulated and PVC sheathed power cable of 11KV grade of size upto 400 Sqmm from existing masonry Open Trench etc.. as required.

Earthing with G.I. earth plate 600 mm X 600 mm X 6 mm thick including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe of 2.7 metre long etc. with charcoal/ coke and salt as required

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)

Providing and fixing 25 mm X 5 mm G.I. strip in 40 mm dia G.I. pipe from earth electrode including connection with G.I. nut, bolt, spring, washer excavation and re-filling etc. as required

Providing and fixing 25 mm X 5 mm G.I. strip on surface or in recess for connections etc. as required

Fabrication, Supply and Fixing of 6mm thick chequered plates including providing and fixing 40mmx40mmx6mm angle iron supports on cable trenches, 25mmx6mm MS flat around the chequered plate by welding, providing lifting hook etc., as required.

Providing Civil Works as required as detailed below: Cement concrete in 1:3:6 (1 cement: 3 coarse sand : 6 graded stone aggregate 20mm nominal size)

Cement mortar in 1:6 (1 cement: 6 coarse sand )

Brick work with bricks of class designation 7.5 in foundation and plinth in 1:6 (1 cement: 6 coarse sand)

Cement plaster 12mm thick of mixture 1:6

Steel rod for RCC Slabs

Dismantling of 1 No. 11 KV HT BOCB Panels including disconnection of Power/Control Cables and Earth Connections, shifting of dismantled materials to Store of Engineer-In-Charge as required. Work shall be done in a Phased Manner Only.

RAJASTHAN CRANE SERVICES

DOSHI ELECTRIC ENGG. CO.

Mona Generator Services Pvt. Ltd.

jaydeep agency corporation