SITC of outdoor and indoor feeder panels with switchgears at TX STN Garia under Ftr HQ BSF South Bengal

Providing and fixing following rating and breaking capacity and pole MCCB with thermomagnetic release and terminal spreaders in existing cubicle panel board including drilling holes in cubicle panel, making connections, Ics=100% Icu and Operational Voltage 690V etc. as required. i) 250 A, 35 KA, FPMCCB

125 A, 16 KA, TPMCCB

Supplying and fixing 63 A rating, double pole, 240 V, isolator in the existing MCB DB complete with connections, testing and commissioning etc. 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. i) 2 X 35 sq. mm (25 mm)

3½ X 35 sq. mm (32 mm)

3½ X 70 sq. mm (38 mm)

Earthing with G.I. earth pipe 4.5 metre long, 40 mm dia including accessories, and providing masonry enclosure with cover plate having locking arrangement and watering pipe etc. with charcoal/ coke and salt 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 6 SWG dia G.I. wire on surface or in recess for loop earthing as required.

Providing and laying earth connection from earth electrode with 6 SWG dia GI wire in 15 mm dia GI pipe from earth electrode including connection with GI thimble excavation and refilling as required.

SITC of 4 pole, 250 A, onload change over switch on the existing panel. (make- Havells IHCNFO0250 or similar)

The panal shall be painted/ finished with powder coating of apprvoed shade. The panel should be mounted on 50 mm x 50 mm x6 mm GI Angle frame having length of 1200 mm (600 mm above ground level and 600 mm for foundation). Providing and laying in position cement concerete 1:3:6 (1 cement : 2 Coarse sand : 6 graded stone agregate 20 mm nominal size) in foundation of feeder pillar including form work etc as required. Panel dimensions (1.6 M (H)x 1.0 M (W)x 0.45 M (D)). The drawings will be final as per direction of Engineer in charge.

Supplying, Installation, testing and commissioning of cubical panel (meter box) wall mount type suitable for 415 V, 3 Phase, 4 wire 50 Hz AC Supply system. Panel should be fabricated in approved factory having modern fabrication and testing process. Panel should be IP 54 procted. The size of panel shoul be 1.00 (W) x 1.0 mtr (H/L) x 0.30 (D) i.e. not less than 0.30 Cum, made with 16 SWG CRCA sheet and having detachable CRCA gland plate, with 100 Amp capacity TPN aluminium bus bar, base of insulated brackets or studs as per norms. The panel should be suitable to accommodate 04 nos. Energy meter of size 9"x11" appx (1-phase domestic), 04 nos DP Isolator of suitable rating and 01 no. TPN MCCB and LED indicators. The panel should be front openable in parts (splitted) suitable for opening the doors with arrangement of glass or window for displaying the meter readings. The drawings will be final as per direction of Engineer in charge.

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