ECN Electrical Forum - Discussion Forums for Electricians, Inspectors and Related Professionals
ECN Shout Chat
Recent Posts
Chinese motors rated 220 v 50 hertz
by gfretwell - 07/23/24 04:45 PM
100 Definitions: Accessible 2023
by gfretwell - 07/23/24 10:12 AM
100 Definitions, Likely to Become Energized, 2023
by gfretwell - 07/23/24 10:08 AM
240V only in a home and NEC?
by emolatur - 07/18/24 01:05 PM
2023 CEU Course
by gfretwell - 07/17/24 01:08 AM
Advertisement:
Recent Gallery Topics:
This is a new one
This is a new one
by timmp, September 24
Few pics I found
Few pics I found
by timmp, August 15
Who's Online Now
2 members (Admin, gfretwell), 767 guests, and 40 robots.
Key: Admin, Global Mod, Mod
Previous Thread
Next Thread
Print Thread
Rate Thread
#176335 03/29/08 06:42 PM
Joined: Feb 2008
Posts: 9
T
Member
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.

Horizontal Ad
Joined: Jul 2004
Posts: 9,959
Likes: 34
G
Member
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
Joined: Aug 2007
Posts: 853
L
Member
fuse it at 100A, Protect it and you should be fine. Ground rods too.

Joined: Jul 2004
Posts: 9,959
Likes: 34
G
Member
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

Link Copied to Clipboard
Featured:

* * * * * * *
Tools for Electricians
Tools for Electricians
 
* * * * * * *

2023 National Electrical Code (NEC)
2023 NEC + Exam Prep Study Guides Now Available!

Member Spotlight
noderaser
noderaser
Portland, Oregon, United States
Posts: 404
Joined: March 2007
Top Posters(30 Days)
Popular Topics(Views)
323,533 Are you busy
247,855 Re: Forum
231,637 Need opinion
Powered by UBB.threads™ PHP Forum Software 7.7.5