grounding electrode conductors

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#62269 - 02/12/06 02:37 PM

grounding electrode conductors

lite bulb

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Joined: Feb 2006
Posts: 78
wilm,de.

when derating sevice conductors 4/0 for 3/0 copper for a 200 amp service do you use #2 for the grounding electrode conductor or #4.

[This message has been edited by lite bulb (edited 02-12-2006).]

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#62270 - 02/12/06 07:04 PM

Re: grounding electrode conductors

gfretwell

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Joined: Jul 2004
Posts: 9,123
Estero,Fl,usa

There is no relief in 250.66 for derated service conductors. If it is 4/0 copper you need the #2

[This message has been edited by gfretwell (edited 02-12-2006).]

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