KNDD/ESTB/E-TENDER/25-26/05

Construction of earth pit with 600 x 600 x 600mm wide x 75mm brick wall & plastered outer & inner side including neat cement complete and providing enclosure on the top of the earth pit by RCC cover slab/ C.i. hinged inspection cover .as per direction of DE/AE.

Installation of earth electrode by 40mm dia 3mtr. Long perforated G.I. Pipe as a earth electrode including making of borehole and lowering the pipe with filling of borehole by betonite powder and excavated earth with fixing of 150 x 150 x 6mm Plate on top of the Pipe with electric arc. welding complete and as per direction of the site-in-charge. (Require of betonite powder per bore hole approx. weight 22Kg) (Materials supplied by the contractor)

Earth work in filling in foundation trenches or plinth with good earth, in layers not exceeding 150 mm including watering and ramming etc. layer by layer complete. (Payment to be made on the basis of measurement of finished quantity of work). )With earth obtained from excavation of foundation.

Construction of earth pit with 600 x 600 x 600mm wide x 75mm brick wall & plastered outer & inner side including neat cement complete and providing enclosure on the top of the earth pit by RCC cover slab/ C.i. hinged inspection cover .as per direction of site-in-charge.(Materials supplied by the contractor)

Providing enclosure on the top of the earth pit by RCC cover slab/ C.i. hinged inspection cover and as per direction of site-in-charge.(Materials supplied by the contractor) m

Laying of earth mat by 65 x 6mm / 50 x 6mm Flat including match alignment cold bending electric arc. Welding with excavation of earth & refilling the same after laying if earth mat.as per direction of site-in-charge.(Materials supplied by the WBSEDCL)

Fixing of sub-station earthing strips i.e. riser by 65 x 6mm / 50 x 6mm Flat including earthing of newly erected Sub-Stn. Structure & equipments including electric arc. welding Lap jointing complete and painting by anti -corrosive black paint as per direction of site-in-charge.as per direction of site-in-charge.(Materials supplied by the WBSEDCL)

Laying of copper control cable 1.1 KV armoured, 2.5 sq. mm 4/12 of different length on existing trench , as per direction of site-in-charge.

Laying of 11 KV XLPE U.G. cable 3 x 300 sq. mm 3 core on existing trench from 10 MVA transformer to 11 KV VCB.as per direction of site-in-charge.

UProoting of XLPE cable 11KV 185Sq. Mm

Uprooting of XLPE cable 11KV 300 Sq. mm

Erection of Shunt/Series Trip I/D Type 11 KV VCB

Dismanteling of 11 KV shunt trip VCB with acc. & return to store with Transportation charges