PROVN OF EARTHING PIT INFRASTRUCTURE AT 4 BRD, PROVN OF DG SET FOR P-1 BLDG, PROVN OF DEFICIENT ACs AGAINST BER, PROVN OF ELECTRIC SUPPLY TO ARRESTOR BARRIER AND OTHER CERTAIN LOCATION AT TECH AREA AT AFS KANPUR

Material and labour for making hingh conductive, Non corrosive Maintenance free yet repairrable elecrtro -Chemical gel earth pit sutitable for lighting conductor application using earth enchancing compound ISOGEL of 20 kg kit, CPRI tested 'ISOROD' of 3 inch dia, 8 ft long and 0.12 inch thick made of k type electrolytic copper with top removal gel filling cap, seepage holes, stainless steel fasteners, HOP lockable earth pit cover cum inspection / termination chamber and all required accessoreis including design modifications to achieve the required earth. Note :- 1. Earth work will be included in unit rate. 2. Connecting strip for equipment of 32x6 mm copper up to 7.5 meter will be included in unit rate. 3. Test point to be made on insulation base i.e. porcetlain insulator or mica sheet of 3 mm thick will be included in unit rates. If earth resistance value is found to be outside the permissible limits successful bidder shall do fresh earthing on his own expense.

M&L for earhting complete with M.S. galvanized earth plate electrode 600 x 600 x 6 mm thick buried directly in ground (earth pit not less than 2.25 M deep below normal GI with top edge of the earth plate not less than 1.5M below normal Gl connected to galvanized earth lead wire 4 mm dia by means of bolts, nuts, check nuts & washers of GI or steel incl excavation, PCC (1:3:6) type C-1 chamber with RCC cover (1:2:4) type Bo, 40mm thick reinforced with 8 mm dia bar , 3 Nos both way, 15mm dia light grade GI protection pipe upto 7.5 mtr funnel with wire mesh watering pipe of size 20 mm dia med grade lugs main earthing lead upto 7.5 mtr including, Charcoal dust, salt etc, all as shown in electrical plate No. 3 of SSR Pt-I, 2009 Specification rest all as specified and directed by Engineer in Charge. Note : Earth work and earth wire up to 7.5mtr will be included in unit rate.

M& L for providing new earthing for bldg complete with copper plate of size 600 x 600 x 3.15 mm with copper earth strip of size 25 x 3 mm and earth pit not less than 4.25 mtr deep delow normal ground level with top edge earth of the plate not less than 3.50 mtr below normal ground level connected to copper strip (20 x 3mm) from earth plate to test point by means of brass bolts, nuts check nuts and lead washers or copper rivted joint including char coal dust, common salt, funnel with wire mesh, 20 mm dia light grade GI pipe for watering and 40 mm dia GI pipe light grade for protection pipe upto 7.5 mtr fir copper strip and excavation / earth work with PCC pit 1:3:6 type C2 using 40 mm graded stone aggregate and RCC cover of 40 mm thick with 1:2:4 type B-O using 12.5 mm graded stone aggregate reinforced with 6 mm dia mild steel round bar 75 mm C/C both way with two Nos 12 mm dia MS Handle complete all as shown in electrical plate No 5 of SSR Part I the rates includes testing charges also all as specified and directed by Engineer-in-Charge. Note : 1) Cost of 7.5 mtr copper strip an GI pipe for protection of copper strip are deemed to be included in the quoted rate. 2) Earth work will be included in unit rate.

M&L for provn of earthing complete with M.S galvanized earth plate electrode 600 x 600 x 6 mm thick buried directly in ground (earth pit not less than 2.25 M deep below normal GI) with top edge of the plate not less than 1.5M below normal GI, conencted to galvanized earth strip 32x6mm upto 7.5 mtr with protection pipe of 40mm bore by means of bolts, nuts, check nuts & washers of GI or steel including necessary excavation and earth work, PCC (1:3:6) type C-1 chamaber with 40 mm thick RCC cover (1:2:4) type B0, reinforced with 6 mm dia bar, 3 Nos both way, funnel with wire mesh, watering pipe of size 20 mm dia med, grade, lugs, main earthing lead upto 7.5 mtr including Charcoal copper strip commplete all as specified and directed by Engineer in Charge. Note: GI earth strip up to 7.5mtr shall be deemed to be included in quoted unit rate.

Material and lobour for earthing complete with copper plate electrode 90cm x 60xm x 5cm thick buired directly in ground with top edge of plate not less than 4.5 mtr deep below the normal ground lecele connected to copper strip 32 x 6 mm copper strip as main earthing lead and connected and tinted copper bolt, nuts, check nuts and washers besides braising at all joints all as directed and connected to earth test point all as specified and directed on completion with and includign necessary excavation , earth work, returning filling removal of extra soil etc, filling adequate wty of charcoal dust, common salt and MG SO4, PCC work (1:3:6) type C1 using 20mm graded stone aggregate for earth pit with 40 x 40 x 6 mm mild steel angle iron frame for cover, pre cast RCC (1:2:4) type B1 40mm thick cover reinforcement with 8mm TMT bar @ 75 C/C on both way with funnel with wire mesh and 50mm dia GI light grade for earth lead prtection pipe and 40 mm dia GI medium grade for watering all as specified and directed. Note: Copper earth strip up to 7.5mtr shall be deemed to be included in quoted unit rate.

Supply & fixing of copper strip 32 x 6 mm on wall or buried in ground all as directed by Engineer-in-Charge.

Supply & fixing of copper strip 20 x 3 mm on wall or buried in ground all as directed by Engineer-in-Charge.

Spply & fixing for GI strip 30 x 6 mm on wall or furied in ground all as directed by Engineer-in-Charge.

M&L for earth continuity conductor or main earthing lead 4 mm dia GI or steel wire fixed to wall on batten or recessed or buired in ground or drawn in conduit/pipe all as required at site.

Supply and fixing of GI pipe light grade of size 40 mm bore for laying in trechces / floors or walls including all fittings for protection to earthing strip complete as required and directed by Engineer-in-Charge.