REPAIR/ MAINTENANCE OF EARTHING INFRASTRUCURE, CABLES, PANELS ETC AT MAFI INSTALLATIONS AT AF STN CHANDIGARH.

M&L in replacement for earthing complete with galvanised steel earth plate electrode 600mmx 600mm x 6mm thick buried directly in ground vertically (earth pit not less than 2.25m deep below ground level) with top edge of the plate not less than 1.5mtr below normal ground level, earth plate surrounded from all sides by 15cm thick packed alternate layers of charcoal dust and common salt, electrode connections using galvanised iron strip of size 25mm x 4mm thick (upto body of equipment) by means of bolts, nut check nuts and washers of galvanized iron or steel as shown in electrical plate No. 3 of SSR - 2009 (Part-I) including charcoal dust and common salt and connected to earthing test point all as specified or indicated including connecting/ testing on completion complete all as specified and directed. Notes:- (i) The unit rate includes galvanised Iron strip upto 7.5 metre from earth plate) earth point/ test point. Qty required beyond 7.5 metre shall be measured and paid separately under respective item. (ii) Excavation & earthwork, PCC pit and cover, funnel with wire mesh, 20mm dia watering pipe, test point terminal and 40mm dia GI protection pipe shall be measured and paid separately under respective items. (iii) Old earthing may have been burried down to a depth of exceeding 2.25m below ground level. No extra payment will be made if excavation is done beyond 2.25m depth to retrieve the old earthing. (iv) The complete earth system shall be guaranteed to give result less than 5 ohm resistance.

M&L in replacement for earthing complete with galvanised steel earth plate electrode 600mmx 600mm x 6mm thick buried directly in ground vertically (earth pit not less than 2.25m deep below ground level) with top edge of the plate not less than 1.5mtr below normal ground level, earth plate surrounded from all sides by 15cm thick packed alternate layers of charcoal dust and common salt, electrode connections using galvanised iron strip of size 32mm x 6mm thick (upto body of equipment) by means of bolts, nut check nuts and washers of galvanized iron or steel as shown in electrical plate No. 3 of SSR - 2009 (Part-I) including charcoal dust and common salt and connected to earthing test point all as specified or indicated including connecting /testing on completion complete all as specified and directed. Notes:- (i) The unit rate includes galvanised Iron strip upto 7.5 metre from earth plate) earth point/ test point. Qty required beyond 7.5 metre shall be measured and paid separately under respective item. (ii) Excavation & earthwork, PCC pit and cover, funnel with wire mesh, 20mm dia watering pipe, test point terminal and 40mm dia GI protection pipe shall be measured and paid separately under respective items. (iii) Old earthing may have been burried down to a depth of exceeding 2.25m below ground level. No extra payment will be made if excavation is done beyond 2.25m depth to retrieve the old earthing. (iv) The complete earth system shall be guaranteed to give result less than 5 ohm resistance.

S&F in repairs porcelain/ epoxy insulators of size approximate 50mm x 25mm x 25mm for fixing of roof/ down conductor complete with fixing screws etc. dully fixed in wall/ roof with PVC rawl plugs and fixing screws complete all as directed.

M&L for replacement of aluminium strip 25mm x 3mm for roof conductor and down conductor above ground complete all as specified and directed.

M&L for replacement of copper strip 20mm x 3mm for roof conductor and down conductor above ground complete all as specified and directed.

M & L in replacement earth continuity conductor or main earthing lead made out of 70 sqmm PVC insulted 1100 volts grade stranded copper conductor single core cable fixed to wall or buried in ground etc. as required complete all as specified and directed.

M&L in replacement for Earthing complete with copper earth plate electrode 60 cm x 60 cm x 3.15 mm thick buried directly in ground (earth pit not less than 2.25 Mtr deep below ground level ) with top edge of the plate not less than 1.5 Mtr below normal ground level, connected to copper earth lead strip 20mm x 3mm by means of bolts, nuts, check nuts and washers of of galvanized iron or steel as shown in electrical plate No. 3 of SSR - 2009 (Part-I) including charcoal dust and common salt and connected to earthing test point all as specified or indicated including connecting/ testing on completion complete all as specified and directed. Notes:- (i) The unit rate includes copper strip upto 7.5 metre from earth plate) earth point/ test point. Qty required beyond 7.5 metre shall be measured and paid separately under respective item. (ii) Excavation & earthwork, PCC pit and cover, funnel with wire mesh, 20mm dia watering pipe, test point terminal and 40mm dia GI protection pipe shall be measured and paid separately under respective items. (iii) Old earthing may have been burried down to a depth of exceeding 2.25m below ground level. No extra payment will be made if excavation is done beyond 2.25m depth to retrieve the old earthing. (iv) The complete earth system shall be guaranteed to give result less than 3 ohm resistance.

Supply, laying, jointing and testing LT XLPE cable insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 volts grade with stranded aluminium conductor of size 95 sqmm 3½ core laid in trenches/ passing through GI tubing etc. including taking out existing LT XLPE cable complete as specified and directed.

Supply, laying, jointing and testing LT XLPE cable insulated, screened, PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 volts grade with stranded aluminium conductor of size 25 sqmm 4 core laid in trenches/ passing through GI tubing etc. including taking out existing LT XLPE cable complete as specified and directed.