grounding electrode conductors

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grounding electrode conductors #62269
02/12/06 01:37 PM 02/12/06 01:37 PM

lite bulb

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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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Re: grounding electrode conductors #62270
02/12/06 06:04 PM 02/12/06 06:04 PM

gfretwell

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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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