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#95450 - 09/14/05 01:34 AM 200 amp service  
watersparkfalls  Offline
Member
Joined: Mar 2005
Posts: 220
Washington...Not DC
a garage/workshop is existing on some land, the new owner wants to build a 2800 sq ft house. the existing garage/workshop is fed from a 200 amp mobile pack which is approx. 225' away. the new house will be within 100' of existing sub panel and 200+ feet away from existing mobile pack.

is it legal to feed house from garage sub?
always heard that you cant feed a sub from a sub to detached building,but dont know what nec ref #.

and if i do have to go back to mobile pack, can i change single lugs to a double barrel set to feed the new house?

any help will and is appreciated.

h20


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#95451 - 09/14/05 05:04 AM Re: 200 amp service  
jw electric  Offline
Member
Joined: Sep 2005
Posts: 106
Asheboro, NC
I can not find the term “subpanel” in the NEC. If I can not find it then I can not find a requirement forbidding the use of one to feed one.


Mike

#95452 - 09/14/05 10:02 AM Re: 200 amp service  
Larry Fine  Offline
Member
Joined: Feb 2005
Posts: 693
Richmond, VA
You can feed a sub-panel from a sub-panel.


Larry Fine
Fine Electric Co.
fineelectricco.com

#95453 - 09/17/05 08:49 PM Re: 200 amp service  
e57  Offline
Member
Joined: May 2003
Posts: 2,876
S.F.,CA USA
I too have not heard of this sub to sub rule.... I do it all the time.

But what you're talking about is a service or panel at a detatched structure (existing mobile pack), sub at a detatched building. (new house) Among others, see Art. 225. There are too many codes to list for the application your going into without knowing much more.


Mark Heller
"Well - I oughta....." -Jackie Gleason


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