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#98540 - 05/31/06 07:32 PM GEC sizing
hedlok Offline
Junior Member

Registered: 03/25/06
Posts: 8
Loc: pa.
200A service with 4/0 alum. cond. what size GEC is okay? i know that table 250.66 says #4 but im in an arguement with someone who says it's not required to be any larger than #6. also, there is no rebar ground and plastic water service. what do you say?

2014 / 2011 NEC & Related Books and Study Guides
#98541 - 05/31/06 07:43 PM Re: GEC sizing
Bob Offline

Registered: 02/05/02
Posts: 182
Loc: Mobile, AL, USA
250.66(A) says #6.

#98542 - 05/31/06 08:35 PM Re: GEC sizing
Larry Fine Offline

Registered: 02/18/05
Posts: 684
Loc: Richmond, VA
A driven ground never needs more than #6 cu. Any other electrode, #4 cu.
Larry Fine
Fine Electric Co.


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