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#23443 - 03/18/03 08:02 PM Grounding Electrode History  
Electra  Offline
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

#23444 - 03/18/03 08:09 PM Re: Grounding Electrode History  
Bjarney  Offline
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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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