BARCT/NRB/GSO/EMT187/2025/394

Replacement of LT Panel For Sub-Station no. 3 Replacement of LT Panel and Supply, Design, obtain approval of drawings prior to manufacturing, fabricate, installation , testing and commissioning of cubicle and extensible type front/ back operated 440V new panel floor mounting type having busbars and bottom cable entry for incoming and outgoing, made out of 14 Swg CRCA sheet complete with 2000 Amp, TPN tinned electrolytic grade tinned copper of 4 equal busbar, interconnections by tinned copper busbars, colour coded heat shrinkable PVC sleeves and powder coated with approved shade all as specified in specification. Please refer detail technical specification attached. Details of the item is as following(1.1 to 1.3)

Earthing station Providing, installation of earth stations as per IS 3034. Detail specification given in Annexure I. Copper plate type earth station having tinned electrolyte grade copper plate of size 600 mm x 600 mm x 3 mm and tinned electrolyte grade copper strip size 40 mm x 6 mm with watering pipe, funnel and cast iron cover. All civil material required for earthing chamber is in scope of contractor. Two earthing for each Feeder panel (2 x 2) Total = 4 Nos. Copper plate of size for each earthing 600mm x 600mm x 3mm, Filling material Charcoal 80Kg, Salt crystal 60Kg Earthing Chamber with funnel and cover

Earthing Copper strip Supply, installation and Guarantee of 25 mm x 3 mm size electrolyte grade tinned solid copper earthing conductor strip & accessories. 10 mtr strip will required for each Feeder panel to earth pit. Hence total = 10 X 4 + 40 spare = 80 mtr.

PVC conduit : Supply and installation Flexible PVC Conduit as per specifications and as directed by EIC. All the accessories required for installation of conduit should be supplied and used where ever necessary. 32 mm dia. wirebreaded flexible PVC conduit

Replacement of Feeder Panel 13 (near bldg no. 50) : Replacement of Old Feeder Panel and Supply and installation of Feeder Panel, fabricated out of 3.0mm / 2.0mm. thick GI sheet having cable alley, control wiring. Feeder Panel enclosure should be IP65 weather proof & double encloser type and epoxy painted after seven tank treatment and incorporating the followings items installed as technical specifications attached. Feeder shall be mounted on concrete foundation pedestal. Material required for making foundation/plateform and removing the old feeder is in scope of contractor. i) 3 Pole, 400A MCCB, 50kA as Incomer complete with spreader link, separators and accessories as incommer, termination of 3½C, 185 mm² PVC insulated armoured cable - 01set equivalent to suggestive make list. ii) 3 Pole, 160A MCCB, 36kA complete with spreader link, separators and accessories as outgoing for termination of 3½ C, 35-150 mm² XLPE armoured cable - 05 Nos. iii) 3 Pole, 100A MCCB, 36kA complete with spreader link, separators and accessories as outgoing, termination of 3½ C, 35 mm²-120mm2, XLPE insulated armoured cable; - 04 Nos. equivalent to suggestive make list. iv) 3 Pole, 63A MCCB, 36kA complete with spreader link, separators and accessories as outgoing, termination of 3½ C, 35 mm²-120mm2, XLPE insulated armoured cable; - 02 Nos. equivalent to suggestive make list. v) 0-500V analog voltmeter of 96 mm² size with 3 ways & OFF position selector switch and protective fuses- 1 Set. vi) 0-300A analog ammeter complete with CTs of 96 mm² size with 3 ways & OFF position selector switch and protective fuses- 1 Set. vii) LED based RYB indicator for supply indication- one set of three indicators (Red / Yellow / Blue - one each) per SPB. viii) TPN Cu Busbar suitable to 400 Amp AC including enclosure – 01 set. ix) 40mm x 5mm earth bus bar connected to earth inside feeder panel to earthing bolt. x) Concrete pedestal: should be made as per technical specification attached.

Replacement of Feeder Panel 8 (near bldg no. 105) Supply and installation of Feeder pillar, fabricated out of 3.0mm / 2.0mm. thick GI sheet having cable alley, control wiring. Feeder pillar enclosure should be IP65 weather proof & double encloser type and epoxy painted after seven tank treatment and incorporating the followings items installed as technical specifications attached. Feeder shall be mounted on concrete foundation pedestal. Material required for making foundation/plateform and removing the old feeder is in scope of contractor. i) 3 Pole, 400A MCCB, 50kA as Incomer complete with spreader link, separators and accessories as incommer, termination of 3½C, 185 mm² PVC insulated armoured cable - 01set equivalent to suggestive make list. ii) 3 Pole, 160A MCCB, 36kA complete with spreader link, separators and accessories as outgoing for termination of 3½ C, 35-150 mm² XLPE armoured cable - 08 Nos. equivalent to suggestive make list. iii) 3 Pole, 100A MCCB, 36kA complete with spreader link, separators and accessories as outgoing, termination of 3½ C, 35 mm²-120mm2, XLPE insulated armoured cable; - 03 Nos. equivalent to suggestive make list. iv) 3 Pole, 63A MCCB, 36kA complete with spreader link, separators and accessories as outgoing, termination of 3½ C, 35 mm²-120mm2, XLPE insulated armoured cable; - 03 Nos. equivalent to suggestive make list. v) 0-500V analog voltmeter of 96 mm² size with 3 ways & OFF position selector switch and protective fuses- 1 Set. vi) 0-300A analog ammeter complete with CTs of 96 mm² size with 3 ways & OFF position selector switch and protective fuses- 1 Set. vii) LED based RYB indicator for supply indication- one set of three indicators (Red / Yellow / Blue - one each) per SPB. viii) TPN Cu Busbar suitable to 400 Amp AC including enclosure – 01 set. ix) 40mm x 5mm earth bus bar connected to earth inside feeder panel to earthing bolt. x) Concrete pedestal: should be made as per technical specification attached.