Construction of Earthing Grid consisting of 24 Nos Earth Pits along with earth work , pipe connection and connection with old earth pits associated to equipments with 50 mm X 6 mm GI strip forming a network 33KV Bhatgaon Main Sub Station

Amount

Item Description/ Heading

Earth work in excavation by mechanical means (Hydraulic excavator)/manual means over areas (exceeding 30 cm in depth, 1.5 m in width as well as 10 sqm on plan) including getting out and disposal of excavated earth lead upto 50 m and lift upto 1.5 m, as directed by Engineer-in-charge. 2.6.1 All kinds of soil [Calculation- 2.95 cmt for 1 earth pit; 2.95x24 = 70.8 cmt]

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.

Supplying and laying 50 mm X 6 mm G.I strip at 0.50 metre below ground as strip earth electrode, including connection/ terminating with G.I. nut, bolt, spring, washer etc. as required. (Jointing shall be done by overlapping and with 2 sets of G.I. nut bolt & spring washer spaced at 50mm)(from Old earth pits of Transformers, MOCB, Lightening Arrester, Surge Arrester, Control Panel, OCB Etc. to earth grid)

Providing and fixing Chlorinated Polyvinyl Chloride (CPVC) pipes, having thermal stability for hot & cold water supply, including all CPVC plain & brass threaded fittings, including fixing the pipe with clamps at 1.00 m spacing. This includes jointing of pipes & fittings with one step CPVC solvent cement and testing of joints complete as per direction of Engineer in Charge. Internal work - Exposed on wall 18.7.5 40 mm nominal outer dia Pipes ( Water Pipe Connection in all 24 nos. Earth pits from the main water supply )

Providing and fixing Chlorinated Polyvinyl Chloride (CPVC) pipes, having thermal stability for hot & cold water supply, including all CPVC plain & brass threaded fittings, including fixing the pipe with clamps at 1.00 m spacing. This includes jointing of pipes & fittings with one step CPVC solvent cement and testing of joints complete as per direction of Engineer in Charge. Internal work - Exposed on wall 18.7.3 25 mm nominal outer dia Pipes ( Water Pipe Connection in all 24 nos. Earth pits from the main water supply )

Providing and fixing Chlorinated Polyvinyl Chloride (CPVC) pipes,having thermal stability for hot & cold water supply, including all CPVC plain & brass threaded fittings, including fixing the pipe with clamps at 1.00 m spacing. This includes jointing of pipes & fittings with one step CPVC solvent cement and testing of joints complete as per direction of Engineer in Charge. Internal work - Exposed on wall 18.7.1 15 mm nominal outer dia Pipes ( Water Pipe Connection in all 24 nos. Earth pits from the main water supply )

Providing and fixing brass stop cock of approved quality : 18.16.1 15 mm nominal bore

Making connection of G.I. distribution branch with G.I. main of following sizes by providing and fixing tee, including cutting and threading the pipe etc. complete : 18.13.1 25 to 40 mm nominal bore

Total impact of GST for the purpose of CTC