Central Coalfields Limited has published Installation Of Lightning Protection For Colony Sub-Station At Pundi Project Under Kuju Area Installation Of Lightning Protection For Colony Sub-Station At Pundi Project Under Kuju Area. Submission Date for this Tender is 04-01-2022. Mechanical engineering Service Tenders in Kuju Jharkhand. Bidders can get complete Tender details and download the document.
| Sl. No. | Item Description |
| 1 | Lightning conductor 25 mm dia X1 mtr. length |
| 2 | Supplying and erecting earth pit of minimum bore dia. 150mm size, approved make Safe Earthing Electrode consisting Pipe-in-Pipe technology as per IS 3043-1987 made of corrosion free G.I Pipes with constant ohmic value surrounded by highly conductive compound with high charge dissipation suitable for effective and maintenance free earthing as mentioned below: With 3 mtr. G.I Pipes having outer pipe dia of 50mm having 80-200 micron galvanizing, Inner Pipe dia. Of 25mm having 200-250 Micron galvanizing, connection terminal dia. Of 12mm in normal soil with 50kg (Two Bag) Back filling Compound. |
| 3 | Erection of steel tubular or rail pole strut in cement concrete 1:3:6 (1 cement : 3 coarse sand : 6 graded stone aggregate 40 mm nominal size ) foundation including excavation and refilling and secured with holding clamps, bolts, nuts, etc. as required |
| 4 | Providing and fixing 25 mm X 5 mm G.I. strip on surface or in recess for connections etc. as required |
| 5 | Providing and fixing 25 mm X 5 mm copper strip on surface or in recess for connections etc as required |
| 6 | Labour cost for Sl. No. 1 |
| 7 | Total impact of GST for the purpose of CTC |
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