Installation and commissioning of lightning arrester with chemical earth pit for safety against lightning of officers club Kathara, Gayatri Colony Kathara and new C type Kathara under Kathara Colliery

Amount

Erection of metallic pole of following length in cement concrete 1:3:6 (1 cement:3 coarse sand :6 graded stone aggregate 40 mm nominal size)foundation including excavation and refilling etc. as required 11.00 metre and and upto 13 metre .

Providing and fixing 4.00 mm dia copper wire on surface or in recess for loop earthing as required.

Maintain less earth resistance of chemical ratty pit latest technology for sandy region. I)safe earthing electrode having two custom made G.I tubes galvanized 80 microns minimum on side the other of length 2 mtr outer dia 80 mm field the conductor rich crystalline mixture (CCM)= 01 nos II)back fill compound bag of 25 kg each+2 bages nos installation charge 01 no.) III)Brick work with common burnt clay R.P.S (Non modules)(bricks of class designation 7.5 in foundation and plinth in cement mortar (1:6) 1 cement:6 coars sand= 1 no 04 cum

Supplying and erection of three piece nonlinear resistor type lightning arrestor suitable for 3 wire,11kv overhead lines with rated voltage 9kv (rms)with a nominal discharge current rating of 5 KA and complete with galvanised clamping arrangement,GI. Bolts,nuts,washers etc.as required.

Total impact of GST for the purpose of CTC

M/S PUMPY N RAJ ENTERPRISES

M/S VISHAL ENTERPRISES