SPECIAL REPAIRS TO LIGHTEING CONDUCTOR EARTH PITS AND PROVISION OF INVERTER TUBELIGHTS AND CEILING FANS AT RATNUCHAK MIL STN UNDER GE KALUCHAK

Amount

Air termination single pointed copper rod 12mm dia and 300mm long including necessary fixing arrangements using MS clamps, nuts, bolts etc, complete all as specified & directed.

Earthing complete with copper earth plate of 600x600mm 3mm thick electrode buried directly in ground (preferably in vertical position) earth pit not less than 2.25 metre below normal ground level with top edge of the earth plate not less 1.5 metre (BGL), connected to copper earthing strip of 32mm x 6mm upto 7.5m connected with by means of tinted copper bolt, nuts, check nuts and washers besides braising at all joints all as directed and connected to earth test point with and including necessary earth work in any type of soil, returning filling in, removal of surplus soil etc, filling adequate qty of charcoal dust, common salt, PCC pit in RCC 1:2:4 type B-1, precast RCC cover with suitable handle, 20mm bore 'medium grade' galvanized iron water tubing fixed with funnel and wire mesh and 40 mm bore “light grade” galvanized iron protection pipe for copper earthing strip 32mm x 6mm upto 7.5m length,

complete all as shown in electrical plate No 3 of SSR 2009 Part-I, connected to test point, complete all as specified and testing on completion. Notes : (i) The excess requirement (if more than 7.5 Mtr) of copper strip as for connecting upto the test point will be measured and paid separately. (ii) The excess requirement (if more than 7.5 Mtr) of GI protection pipe will be measured and paid separately. (iii).Testing of earthing is to be carried out by using earth tester & test result shall be submited duly signed by contractor. (iv) Earth resistance value shall be less than 1.0 ohm.

Earth continuity conductor or main earthing lead fixed to wall on batten or recess or chases or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicated situation for loop earthing etc as required of copper strip of 25 x 3mm to connect earthpit to electrical equipment room, complete all as specified & directed.

Galvanized iron water tubing, medium grade, 25mm bore for installation of air termination rod, complete all as specified and directed.

Test point terminal block made of gun metal or phosphorus bronze size 75x75x25mm, drilled and screwed including 3 Nos. 8mm dia 25mm long hex head screw, complete all as specified & directed.

PCC 1:2:4, nominal mix, type B-1, using 20mm graded crushed stone aggregate as in coping, bed plates and the like including weathering, slightly rounded or chamfered angles and throating including necessary form work, complete all as specified & directed.

Supply, hanging and testing of 1200mm sweep, 230 volts, AC ceiling fans, BEE rated energy efficient ceiling fan conforming to IS:374-2019, having 3 blades alongwith copper wound stator (capacitor start) with minimum air delivery 210 cubic metre per minute, power consumption not more than 50 watt, top speed minimum 370 RPM or higher, speed control by 5 step electronic regulator including fan regulator two module 100 watt ISI marked five step, capacitor, down rod, canopy, making connection with three core flexiable copper cable of 1.50 Sqmm upto ceiling rose, complete all as specified & directed.

M/S A K ENGINEERS & CO.

Warne Builders

LAIQ RAM VERMA

Pyramid constructions

M/S GRD ENGINEERS

vishesh engineers

Sarbat Construction Co

Azurite Engineering

Prakash Trading Corporation

M/S Sudagar Mal