Name of Work: Repair / Renovation of Lighting Arrester Earthing System of Type – I & Type – II Quarters at Central Institute of Technology Kokrajhar
Sl. No.
Item Description
1
Repair / Renovation of Lighting Arrester Earthing System of Type – I & Type – II Quarters
2
Providing and fixing of lightning conductor finial, made of 25 mm dia 300 mm long, G.I. tube, having single prong at top, with 85 mm dia 6 mm thick G.I. base plate including holes etc. complete as required.
3
Fixing of lightning conductor finial (single prong) with base plate including holes etc. complete as required.
4
Providing and fixing G.I. tape 20 mm X 3 mm thick on parapet or surface of wall for lightning conductor complete as required.(For horizontal run)
5
Providing and fixing G.I. tape 20 mm X 3 mm thick on parapet or surface of wall for lightning conductor complete as required.(For vertical run)
6
Providing and laying G.I. tape 32 mm X 6 mm from earth electrode directly in ground as required.
7
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.
8
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.
9
Laying of one number PVC insulated and PVC sheathed / XLPE power cable of 1.1 KV grade of following size direct in ground including excavation, sand cushioning, protective covering and refilling the trench etc as required. Above 35 sq. mm and upto 95 sq. mm
10
Supply of 3.5C x 95 Sq.mm PVC sheathed XLPE 1100 Volt armoured U.G. Cable of make RR Kable, Havells, Polycab, KEI or equivalent as directed by the department.
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