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#173953 - 01/23/08 04:17 PM GEC size at second building?  
gfretwell  Offline


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Joined: Jul 2004
Posts: 9,118
Estero,Fl,usa
If you are installing a GEC at a second building on a service do you still size to 250.66 on the service conductors or do you base it on the feeder?


Greg Fretwell

2017 / 2014 NEC & Related Books and Study Guides

#173954 - 01/23/08 05:00 PM Re: GEC size at second building? [Re: gfretwell]  
iwire  Offline
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Joined: Jan 2003
Posts: 4,391
North Attleboro, MA USA
The size of the feeder to the building in question.

Check out 250.32(E) 2005


Bob Badger
Construction & Maintenance Electrician
Massachusetts

#173964 - 01/24/08 12:39 AM Re: GEC size at second building? [Re: iwire]  
gfretwell  Offline


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Joined: Jul 2004
Posts: 9,118
Estero,Fl,usa
OK I was just concerned about what a "supply conductor" really meant. I assumed it was the feeder but I wanted to hear it ... as a sanity check. Thanks


Greg Fretwell

#173967 - 01/24/08 05:44 AM Re: GEC size at second building? [Re: gfretwell]  
iwire  Offline
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North Attleboro, MA USA
I agree it could be clearer.......



Bob Badger
Construction & Maintenance Electrician
Massachusetts


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