BDPS/V/EARTHING/2026
Kolkata Municipal Corporation · Kolkata, West Bengal · Civil Works & Infrastructure · open
Key facts
- Tender value: ₹8.2L
- EMD: ₹17K
- Published: 09 Oct 2026
- Closing date: 27 Oct 2026
- Status: open
- Status as of: 10 Oct 2026 09:11 UTC
- Department: Sewerage Drainage
- Office: BDPS
Description
Urgent installation of transformer and HT VCB protection earthing for 4 transformers and a 6-panel HT VCB at the Deeper Sump sub-station under BDPS. The work includes earth electrodes, earthing connections, earth busbar, and associated materials.
Eligibility & requirements
- Startup relaxation: No
- MSE relaxation: No
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Commercial terms
- Bid type: Open Tender
- Evaluation: Percentage
- Make in India (MII): No
- MSE preference: No
Line items (10)
- Excavation of soil for installation of Earth Electrode and filling & ramming (Soft Soil) — Qty: 250 Cu mtr
- Earthing with 80 mm dia GI pipe (TATA-Medium)x 3.0 Mts. long and 1 No. 65 mm x 8 mm galvanized (Hot Dip) steel strip (4 Mts. long), 20 mm dia x 125 mm long galvanized bolt, double nuts, double washers including finishing both ends by making holes etc. and S & F 80 mm dia GI pipe (ISI-Medium) protection (3 Mts. long) to be filled with bitumen partly under the ground level and partly above ground level to an average depth of 3.65 Mts — Qty: 20 Nos
- Extra for providing masonry enclosure on the top of the earth electrode of overall size 86.36 cm x 86.36 cm x 46 cm deep (below Ground level) complete with cemented brick work (1:6) of 25 cm width duly plastered with cement morter (inside) CI hinged inspection cover of size 36.56 cm x 35.56 cm with locking arrangement, GI reducer including drilling of 46 nos. 12 mm dia holes on the GI pipe — Qty: 20 Nos
- Extra for treatment of soil by using salt & charcoal or coke for plate electrode — Qty: 20 Nos
- Supplying & fixing earth busbar of galvanized (Hot Dip) MS flat 65 mm x 8 mm on wall having clearance of 6 mm from wall including providing drilled holes on the busbar complete with GI bolts, nuts, washers, spacing insulators etc. as required — Qty: 430 meter
- Connecting the equipments to earth busbar including S & F GI (Hot Dip) wire of size as below on wall/floor with staples buried inside wall/floor as required and making connection to equipments with bolts, nuts, washers, cable lugs etc. as required and mending good damages. Solid G.I. Wire: 4 SWG — Qty: 90 meter
- Extra for connecting the neutral of Transformer/Earth busbar to earth electrode including S & F Galvanized (Hot Dip) Steel strip 65 mm x 8 mm on wall/floor with GI saddles & insulating the same by one layer of PVC strip over one layer of ampere tape — Qty: 1050 meter
- Supplying, fitting, fixing bolts with nuts, washer: 10 to 16 mm dia: Length up to 75 mm — Qty: 150 kg
- GST 18% — Qty: 1 Nos.
- CESS 1% — Qty: 1 Nos.
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