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#62269 - 02/12/06 01:37 PM grounding electrode conductors  
lite bulb  Offline
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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 06:04 PM Re: grounding electrode conductors  
gfretwell  Offline


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Joined: Jul 2004
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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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