National Electric Code - Question...

generator12

Senior Chief Petty Officer
Joined
Jul 9, 2010
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Hi guys. I've got a house with 100 amp service, but no active ground. The system was originally grounded to the incoming water line, but since the old steel lateral into the house has now been replaced with PVC, I've got no ground except the service neutral. Obviously that's not adequate.

I intend to sink a copper post outside the house and tie it to the in-house water piping system and the service neutral bar. I can use any good advice you can provide, including the gauge of the ground wire to be used.

I'm pretty good with electricity from years of working with it in other contexts, but I don't know the code.

Comments from knowledgeable individuals? And thanks in advance to a great bunch of people.
 
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