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temporary service #176335
03/29/08 06:42 PM
03/29/08 06:42 PM
tradesmen  Offline OP
Joined: Feb 2008
Posts: 9
I am going to unhook a 200 amp service for a double wide home so it can be moved out. homeowneer wants a temp. panel put on service post so contractor has power to work with while building new house. I am going to unhook at the 200 amp disconnect on service post. My question is can I run a piece of #2 ser from the disconnect into a 100 amp panel to provide temp. power, or should i put a 200 amp panel outside on post then move it into house when done.

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Re: temporary service [Re: tradesmen] #176339
03/29/08 08:47 PM
03/29/08 08:47 PM
gfretwell  Offline

Joined: Jul 2004
Posts: 9,186
If you can stay in the tap rules you can and that needs a raceway in most cases but when you are "outside" it says "suitably protected from physical damage".

Greg Fretwell
Re: temporary service [Re: gfretwell] #176341
03/29/08 08:58 PM
03/29/08 08:58 PM
leland  Offline
Joined: Aug 2007
Posts: 853
Lowell area, Ma. USA
fuse it at 100A, Protect it and you should be fine. Ground rods too.

Re: temporary service [Re: leland] #176351
03/29/08 11:20 PM
03/29/08 11:20 PM
gfretwell  Offline

Joined: Jul 2004
Posts: 9,186
I am guessing this is an existing 3R 200a disco on a post, typical for manufactured homes and there should be a ground electrode system installed. I assume he wants to use one of those 100a temp power boxes that has a main breaker so this will just be a feeder tap situation. The only real issue is protection of the tap conductors and separating neutral and ground in the temp power panel. They are usually set up as a service (from my experience). He did say "SER" so I am guessing he knows that.
It sounds like a 240.21(B)(5) to me.

Greg Fretwell


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