Earthing also known as grounding its essential part of live electrical circuit today most common practice are GI Pipe GI wire or Copper Plate or Solid Copper Rod with Copper wire Charcoal & salt it prevent us from electrical shocks to human body & ensure safety of our valuable electrical appliances & electronic PCB the earth resistance value must be 2 ohms or less
Pani ke naal se earth le rhe hai pr wo bar bar kam voltage hote rhete hai 30 voltage ho जाते hai kbhi 140 har..... 5/10 minutes kam or zada hote rhe hai stabilizer laga hai जब b bhot zada pareshani ho rhi hai pani se earth liya hai please koi bataye kaise earth maintain rakhe
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Inhone jo graunding ki hai ye itna bhadiya hai ki is graunding ko transformer ke nutral point ko de sakte hai or hum log over hed ke tecnician hai or hum log bhi aisa hi karte hai
First choice of earthing pit should be unobstructed area, away from the building, else, during lightening, floor/ walls would experience voltage gradients called step voltage which I undesirable. Also, humidity and saline environment is not good for the building as it would rise up due to capillary effect. Standard practice is to run two, independent earth wires for reliability and lower impedance between the earth-pit and switch board.
