In a 3 pin plug holder, what is the purpose of diameter of
ground pin is larger than phase and nutral pin
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Answer Posted / raajeshwar
in case of earth fault current flows through body which is connected to earthing terminal which carries a current to earth if a person comes in contact with body in this case he will get shock.To reduce the intensity of shocks a minimum current should flow through a body and this is possible only when a max current will flow through earthing.To flow a max current resistance should minimum.resistance is minimum when cross section area will b large.thats why to increase cross section area earth point is larger.
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