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Grounding Electrode History #23443
03/18/03 07:02 PM
03/18/03 07:02 PM
E
Electra  Offline OP
Member
Joined: Jul 2002
Posts: 38
Portland, Oregon, USA
I need some help for an extra credit paper I am writting, and of course I waited until the last minute so I do not have time to research this one.

Does anyone know when the NEC started requiring a supplemental grounding electrode for a metal underground water pipe, or has it always been that way?

Thanks,
Frantic Engineering Student

Work Gear for Electricians and the Trades
Re: Grounding Electrode History #23444
03/18/03 07:09 PM
03/18/03 07:09 PM
B
Bjarney  Offline
Moderator
Joined: Apr 2002
Posts: 2,527
West-Southern Inner-Northeast ...
IAEI Soares' Book on Grounding is a good reference.




[This message has been edited by Bjarney (edited 03-18-2003).]


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