250.66 and Ufer

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250.66 and Ufer

#205200 02/05/12 12:45 PM

Joined: Mar 2004

Posts: 814

Tucson, AZ USA

B

BigB

OP

Member

250.66(B) says that the "portion of the conductor that is the sole connection to the grounding electrode shall not be required to be larger than #4 copper wire"

If I have a 400 amp service and my only grounding electrode is the Ufer, do I need to use #2 copper per the table (250.66)?

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Entire Thread
Subject	Posted By	Posted
250.66 and Ufer	BigB	02/05/12 04:45 PM
Re: 250.66 and Ufer	gfretwell	02/05/12 05:27 PM
Re: 250.66 and Ufer	BigB	02/05/12 06:36 PM
Re: 250.66 and Ufer	gfretwell	02/05/12 08:05 PM
Re: 250.66 and Ufer	Tesla	02/05/12 09:39 PM
Re: 250.66 and Ufer	KJay	02/05/12 11:37 PM
Re: 250.66 and Ufer	gfretwell	02/06/12 02:54 AM
Re: 250.66 and Ufer	BigB	02/07/12 02:30 AM
Re: 250.66 and Ufer	HotLine1	02/07/12 02:46 AM
Re: 250.66 and Ufer	gfretwell	02/07/12 03:35 AM
Re: 250.66 and Ufer	KJay	02/07/12 04:42 AM
Re: 250.66 and Ufer	Tesla	02/07/12 11:05 PM
Re: 250.66 and Ufer	HotLine1	02/08/12 02:17 AM
Re: 250.66 and Ufer	gfretwell	02/08/12 03:37 AM
Re: 250.66 and Ufer	KJay	02/08/12 05:35 PM
Re: 250.66 and Ufer	pdh	02/10/12 03:42 AM
Re: 250.66 and Ufer	gfretwell	02/10/12 05:01 AM

Moderated by dougwells, electure, gfretwell, HotLine1, Scott35, Trumpy

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ECN Forum Forums Code Related Discussion NEC & other Code issues 250.66 and Ufer