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Earthing System Design Ppt. • but the wire is embedded upto the wet soil. Neutral for ac systems) to ground earthing is necessary for • for discharging the accumulated charges to ground to prevent hazard to man & machine.
It is often one of the most misunderstood topics or specialisms. In different words, to attach the bimetal elements of electrical machinery and devices to the earth plate or earth conductor (which is buried within the wet earth) through a thick. Size 1000 x 1000 x 1800 mm depth.m.s.
Electrical Engineering
Conduit, ducts, boxes, metallic shells of the switches, distribution boards, switches, fuses, regulating and controlling devices, metallic parts of electrical machines such as, motors,. If 6 further 20 m long conductors are added to form the grid of case 3 with a total of 25 meshes, the gpr decreases by 14.1 %. Earthing system is made of a mesh of buried bare copper cable, with additional earth rods, and shall be calculated, being recommended to use ieee std. The earthing design is considered the single most important parameter to determine the earth fault behaviour in a power system [1].