PROVISION OF EARTHING NETWORK AT ICGS COMPLEX MALKAPURAM UNDER AGE I CG VIZAG

Amount

Earthing complete with copper plate of size 900 x600 x 5 mm with copper strip 32 x 6 mm thick buried directly to ground vertically to a depth not less than 2.50 m below the ground level with top edge of earth plate not less than 1.65 m below normal ground level connected to copper strip 32 x 6 mm size and earthing lead protected with 50 mm dia GI pipe light grade filling around with charcoal dust and salt including excavation, returning, filling of earth and disposal of surplus soil to a distance not exceeding 50 m and connected to copper strip by means of GI nuts, bolts and washers strip connected to earth plate including chamber PCC 1 : 3 : 6 type C1 using 20 mm graded stone aggregate in concrete pit pre-cast RCC 40 mm thick reinforced with 6 mm dia round bars @ 75 mm c/c both way, with 12 mm dia mild steel plain bar lifting handle 2 Nos, funnel with wire mesh 20 mm dia GI pipe light grade, watering pipe and frame work complete all as shown in electrical plate No. 4 of SSR Part - I including testing complete. Note: (Copper strip upto 7.5 m length in included in unit rate quoted by contractor and beyond this lengths the same shall be measured & paid separately.)

Earthing complete with copper plate of size 600x600x3.15 mm with copper strip 20 x 3 mm thick buried directly to ground vertically to a depth not less than 2.50 m below the ground level with top edge of earth plate not less than 1.65 m below normal ground level connected to copper strip 20 x 3 mm size and earthing lead protected with 50 mm dia GI pipe light grade filling around with charcoal dust and salt including excavation, returning, filling of earth and disposal of surplus soil to a distance not exceeding 50 m and connected to copper strip by means of GI nuts, bolts and washers strip connected to earth plate including chamber PCC 1 : 3 : 6 type C1. using 20 mm graded stone aggregate in concrete pit pre-cast RCC 40 mm thick reinforced with 6 mm dia round bars @ 75 mm c/c both way, with 12 mm dia mild steel plain bar lifting handle 2 Nos, funnel with wire mesh , 20 mm dia GI pipe light grade watering pipe and frame work complete all as shown in electrical plate No.3 of SSR Part - I including testing complete. Note: (Copper strip upto 7.5 m length in included in unit rate quoted by contractor and beyond this lengths the same shall be measured & paid separately.

Earthing complete with GI earth plate electrode of size 600 mm x 600 mm x 6 mm thick buried directly to ground vertically to a depth not less than 2.25 mr below the ground level with top edge of earth plate not less than 1.65 m below normal ground level connected to GI strip 32 x 6 mm size and earthing lead protected with 50 mm dia GI pipe light grade filling around with charcoal dust and salt including excavation, returning, filling of earth and disposal of surplus soil to a distance not exceeding 50 m and connected to GI strip by means of GI nuts, bolts and washers strip connected to earth plate including chamber PCC 1 : 3 : 6 type C1. using 20 mm graded stone aggregate in concrete pit pre-cast RCC 40 mm thick reinforced with 6 mm dia round bars @ 75 mm c/c both way with 12 mm dia mild steel plain bar lifting handle 2 Nos, funnel with wire mesh, 20 mm dia GI pipe light grade watering pipe and frame work complete all as shown in electrical plate No.3 of SSR Part - I 1991 including testing complete. Note: (GI strip upto 7.5 m length in included in unit rate quoted by contractor and beyond this lengths the same shall be measured & paid separately.

Earthing complete with GI earth plate electrode of size 600 mm x 600 mm x 6 mm thick buried directly to ground vertically to a depth not less than 2.25 m below the ground level with top edge of earth plate not less than 1.65 m below normal ground level connected to GI wire 4 mm size and earthing lead protected with 15 mm dia GI pipe light grade filling around with charcoal dust and salt including excavation, returning, filling of earth and disposal of surplus soil to a distance not exceeding 50 m and connected to GI strip by means of GI nuts, bolts and washers strip connected to earth plate including chamber PCC 1 : 3 : 6 type C1. using 20 mm graded stone aggregate in concrete pit pre-cast RCC 40 mm thick reinforced with 6 mm dia round bars @ 75 mm c/c both way with 12 mm dia mild steel plain bar lifting handle 2 Nos, funnel with wire mesh, 20 mm dia GI pipe light grade watering pipe and frame work complete all as shown in electrical plate No.3 of SSR Part - I 1991 including testing complete. Note: (GI wire/strip upto 7.5 m length in included in unit rate quoted by contractor and beyond this lengths the same shall be measured & paid separately.

M&L for 4 mm GI wire as Earth continuity conductor or main earthing lead fixed to wall on batten/saddles or recess or chases or burried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. complete all as specified and as directed.

M&L for GI Strip of size 32 x 6 mm as Earth continuity conductor or main earthing lead fixed to wall on batten/saddles or recess or chases or burried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. complete all as specified and as directed.

M&L for Copper Strip of size 20x3 mm Earth continuity conductor or main earthing lead fixed to wall on batten/saddles or recess or chases or burried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc. complete all as specified and as directed.

M&L for GI tubing 20 mm bore, Medium grade, laid under ground/floor or fixed on wall/pole complete all as specified and as directed.

M&L for GI tubing 15 mm bore, Medium grade, laid under ground/floor or fixed on wall/pole complete all as specified and as directed.

S&F PVC bib tap 15mm bore fixed to GI pipe or ferrule complete all as specified and as directed.

S&F of porcelain insulator of required size not exceeding 10 cm long with two nos hole on both end for fixing properly with nuts & bolts on wall of building for separating lightning conductor or earth strip from building all as required at site & directed by Engineer -in-Charge.

M&L for painting on wall with synthetic enamel paint of black colour of 200 x 150 mm size and writing work for earth test result with date & year all as specified and as directed at site by Engineer-in-Charge.

M&L for cutting / boring on PCC/hard standing at a depth not more than 30 cm deep and 30 cm in width for passing earthing conductor and making good the disturbed surfaces with PCC (1:2:4) type B-0 or cement mortar (1:3) complete all as specified and directed.

M&L for providing the MS plate size 0.5 sqmm of triangle shape and oval shape to identify the earthing, not less than 1.00 mm thick and angle iron 25 x 3mm and 600 mm height welded with plate and grouting vertically along with earthing pit with PCC block not less than 300x300x300 mm duly painted background with black colour and writing arial font with white colour the type of earthing i.e. Chemical earthing No.X/Copper earthing No.XX/Charcoal earthing No.XXX and earthing result in Ohm and date of testing, due date date of testing all as specified ans as directed by Engineer-in-Charge at site.

JAHNAVI ASSOCIATES

Prasad and Suresh Constructions

Mavee Syndicate

AYYAPPA CONSTRUCTIONS

RAGHAVENDRA ASSOCIATES