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GEC sizing #98540
05/31/06 10:32 PM
05/31/06 10:32 PM
hedlok  Offline OP
Junior Member
Joined: Mar 2006
Posts: 8
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?

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Re: GEC sizing #98541
05/31/06 10:43 PM
05/31/06 10:43 PM
Bob  Offline
Joined: Feb 2002
Posts: 182
Mobile, AL, USA
250.66(A) says #6.

Re: GEC sizing #98542
05/31/06 11:35 PM
05/31/06 11:35 PM
Larry Fine  Offline
Joined: Feb 2005
Posts: 693
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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