why the earth pin is thicker than other pins in a plug? If
it is for reducing resistance, then why the copper earth
wire is not so thick as earth pin of socket?
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Answer Posted / bala
Actually the earthpin size is high and thickness is also large to pass more leakage currrent and not for load current.Load current normally returns via neutral.and one more thing is earth is taken care for high current rating devices whose current rating is above 5A.
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