Details: annexure-a (labour charges) earthing of distribution transformer including digging of pit of size 2.5 mtr depth and make hole of size 150 mm. placing of earthing electrode (to be supplied by contractor), connecting the same with g.i. (to be supplied by contractor ) of size 35x6 mm for a minimum lenght 6 m. treatment of soil with highly condctive substance as per is 30343 complete in all respect, result of earthing resistance to be recroded in m.b. before and after installation of earthing. the earth resistance after earthing should be less than 1 ohm. earthing of support with m.s. earth rod of 2.5 meter long by hammaring of m.s. rod to proper depth and connecting the earth electrod e with the help of g.i. wire as per construction manual. fabrication of ms channel angle iron etc in required sizes with drilling of holes upto good finish for top channel ,bracing and spec ial type bracket etc. as per respo schedule and local approced drawing. excavation of earth for stay pit of size 0
Sector: Power Sector