REPAIR / REPLACEMENT AND MAINT OF LT EXTERNAL ELECTRIC SUPPLY WORKS AND OTHER CONNECTED ITEMS AT EAST AND WEST WING IN TECH AREA UNDER GE AF TECH AREA GWALIOR

S&F in repair MCCB, 4 pole, 630 Amps current rating and ultimate breaking capacity ics=Icu =100% 36 KA with adjustable overload setting and having thermal magnetic release and to be fixed in distribution board, complete all as specified and directed.

All as per item here-in-before but MCCB, 4 pole, 400 Amps current rating and ultimate breaking capacity 36 KA. Ics = 100 % of Icu

All as per item here-in-before but MCCB, 4 pole, 315 Amps current rating and ultimate breaking capacity 36 KA. Ics = 100 % of Icu

All as per item here-in-before but MCCB, 4 pole, 250 Amps current rating and ultimate breaking capacity 36 KA. Ics = 100% of Icu

All as per item here-in-before but MCCB, 4 pole, 160 Amps current rating and ultimate breaking capacity 36 KA . Ics = 100 % of Icu

All as per item hereinafter but MCCB, 4 pole, 125 Amps current rating and ultimate breaking capacity .16 KA . Ics = 100 % of Icu

All as per item here-in-before but MCCB, 4 pole, 100 Amps current rating and ultimate breaking capacity. 16 KA. Ics = 100 % of Icu

All as per item here-in-before but MCCB, 4 pole, 63 Amps current rating and ultimate breaking capacity .16 KA . Ics = 100 % of Icu

M&L for earthing complete with galvanised steel plate electrode 600x600x6mm thick buried directly in ground (top edge of the plate should not be less than 1.50Mtrs below ground level) connected to GI strip 25×4mm by means of bolts, nuts check nuts and washers of galvanised iron or steel connected to earthing test point all as specified incl 20 mm GI tubing medium grade and necessary fitting for protection of GI strip incl laying of charcoal dust and common salt in alternate layers of 150mm th, PCC chamber using PCC(1:3:6) type C-1 using 20mm graded stone aggregate, RCC cover 40mm thick (1:2:4) type B-0 using 12.5mm graded stone aggregate reinforced with 6mm dia round bar @ 75mm C/C both ways with MS handle 8mm dia, plastering 15mm thick CM (1:6) externally up to 150mm below ground level, GI funnel with 20mm dia medium grade GI pipe for watering and wire mesh incl excavation and earth work and disposal of surplus soil complete all as specified and shown on Electrical plate No.3 of SSR Part-I (2009) and connected to earth test point incl testing and marking Bldg Nos and writing Test Results (in white) on a black painted M.S. Plate (size 300x300x3mm th) duly welded with angle iron of size 40X40x5mm, 60cm long, fixed with the earth pit chamber by grouting complete all as specified and directed. Note :- (i) GI strip 25×4mm and GI pipe medium grade, up to 7.5mtr shall be deemed to be included in the rates quoted for earthing. (ii) Excavation and earth work in any type of soil strata shall be deemed to be included in rates quoted for earthing. (iii) The rates quoted by the contractor are deemed to be included for PCC chamber and PCC cover as per SSR part-1.-

M&L for preparation of old painted surfaces of LT steel tubular pole/strut, of any description and in any position 9.00/8.50 Mtr height and scrapping of pole with emery paper and applying one coat of aluminium paint on all the metallic surfaces including protection pipe, cross arms, clamps, GI pipe bracket of street/security light, anti climbing devices etc and providing three Nos radium band strips complete all as specified and directed.