WORK OF ADDITIONAL 02 NO. BORE EARTHING AT 132 KV SUB STATION AUGASI FOR 40 MVA T/F-I AND II UNDER ETD BANDA

Amount

Details of Work.

Boring with 150mm dia casing pipe to a depth of 27.00 meter long from ground level with skilled and unskilled labour including all T&P, boring apprates and supervision charges etc. required for proper completion of work.

Inserting 40x6mm GI Flat in 50 mm dia B-Class(jindal)ISI mark 6.0 meter long 3 pipe placed horizontally on ground and bolting the G.I flat with 150mm long 75x6mm copper plate conical piece on and then bolting the G.I flat with G.I pipe in such a way that copper flat remains in contact with the pipe . lowering of 6.0 meter long with G.I pipe with conical copper plate connected and at bottem along with G.I flat inside the pipe in boring of 150 mm G.I pipe pieces by G.I sockets along with 40x6mm. G.I flat running inside the pipe by making 150 cm lap joints 75mm above ground level. Taking out 40x6mm G.I flat from the upper end of pipe by making a cut of 45mm wide up to a depth of 50mm in upper portion of G.I pipe and providing 01 no. cap type G.I socket on upper treaded portion of pipe for water pouring in the pipe at regular intervals filling the space.

Fabrication of M.S electrodes out of 40mm dia M.S round 3.0 meter long having 150mm long conical shape.

Excavation of pit of size 2.00x2.00Mx1.50 M driven of M.S electrodes of 32 mm dia 3.0 mtr long in the earth at four corners of the pit equal distance of 2.0 mtr long .keeping the top of electrode 50cm above the pit ground level, welding of 32 mm M.S round pieces of 03 mtr long on all four sides of electrodes and 15cm below of top of electrode by 08 Nos. U type clamp of 50x6mm MS Flat connecting a piece of 03mtr long 40x6mm G.I flat on opposite side of square welding of 40x6mm G.I flat on opposite side of square welding of 40x6mm G.I flat on opposite M.S electrode driven in ground and connecting the 40x6mm G.I Flat.

Rates qouted by the bidders shall be without taxes. Taxes applicable if any to paid extra

M/S V.K.T. SYSTEMS

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