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What size ground wire on a 50 amp 230V four wire circuit?
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Gerald J.
Posted 1/1/2014 09:58 (#3563077 - in reply to #3562892)
Subject: Re: What size ground wire on a 50 amp 230V four wire circuit?



Old codes did allow a reduced size ground but I think that's no longer true. The function of the ground is to carry current IF there is a short to the case and to do that with a low enough voltage drop to prevent a shock hazard to people and critters and a fire hazard from the ground wire heating up. A reduced size ground does NOT accomplish that.

Gerald J.
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