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#200697 - 04/14/11 11:54 PM Service Disconnect  
SJT  Offline
Member
Joined: Jul 2002
Posts: 241
PATCHOGUE, N.Y.
A Service Main disconnect could be outside the building or in the Bldg. right?
If the main is outside (near a transformer)then the first panel it feeds in the Bldg. would be a sub panel?
SJT


2017 / 2014 NEC & Related Books and Study Guides

#200700 - 04/15/11 02:09 AM Re: Service Disconnect [Re: SJT]  
gfretwell  Offline


Member
Joined: Jul 2004
Posts: 9,103
Estero,Fl,usa
Technically the service disconnect just has to be on the property but your AHJ may still want a disconnect on/in the building.
Yes that will become a feeder and you need to run the ECG along with a ground. As long as that is the feeder for the whole building, you can use 210.15(B)(6) in a dwelling. (Not commercial)

Last edited by gfretwell; 04/15/11 04:04 AM. Reason: Make the correction Niko pointed out

Greg Fretwell

#200701 - 04/15/11 03:36 AM Re: Service Disconnect [Re: SJT]  
Niko  Offline
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Joined: Aug 2006
Posts: 356
Campbell, CA
Greg meant, 310.15(B)(6) for 2008 and 310.15(B)(7) for 2011


Be kind to your neighbor, he knows where you live


#200703 - 04/15/11 04:06 AM Re: Service Disconnect [Re: SJT]  
gfretwell  Offline


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Joined: Jul 2004
Posts: 9,103
Estero,Fl,usa
Thanks. I guess I should turn up the light when I type

I am not on the 2011, in protest of the CD thing wink


Greg Fretwell

#200714 - 04/16/11 12:00 AM Re: Service Disconnect [Re: SJT]  
HotLine1  Offline


Member
Joined: Apr 2002
Posts: 6,858
Brick, NJ USA
Be cautious on the location 'within the building'. Unprotected, unfused, conductors within a building, the distance allowed is not specific in the NEC. For the most part, it's left up to the local AHJ. I hear 12", 5', 3'4", but there is NO distance within the book & never was.

A main inside is accepted 'nearest to the point of entry', unless we use the 2" of concrete/brick exception. It all boils down to the AHJ's 'nearest' definition


John


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