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200 amp service #95450
09/14/05 12:34 AM
09/14/05 12:34 AM
watersparkfalls  Offline OP
Member
Joined: Mar 2005
Posts: 222
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

2017 / 2014 NEC & Related Books and Study Guides
Re: 200 amp service #95451
09/14/05 04:04 AM
09/14/05 04:04 AM
J
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
Re: 200 amp service #95452
09/14/05 09:02 AM
09/14/05 09:02 AM
L
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
Re: 200 amp service #95453
09/17/05 07:49 PM
09/17/05 07:49 PM
E
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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