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#22971 - 03/09/03 12:17 PM Probably a dumb question  
ldwilson  Offline
Junior Member
Joined: Mar 2003
Posts: 4
Seneca,SC,USA
This is the first time I have run into this when inspecting a home.
The service supply line to the meter is #2 100amp copper. The line from the meter to the service panel is 100amp aluminum. The internal panel has a 200 amp service disconnect. The panel is not overloaded even for 100 amp. My question is should the main service disconnect be 100amp and is this a code violation?
Thanks for the help.
Larry W.


Larry W.

Work Gear for Electricians and the Trades

#22972 - 03/09/03 12:39 PM Re: Probably a dumb question  
txsparky  Offline
Member
Joined: May 2001
Posts: 552
Magnolia,.Texas U.S.A.
Yes it is a violation.This installation would allow the 100 amp service to be subjected to amperages far exceeding its capacity.

[This message has been edited by txsparky (edited 03-10-2003).]


Donnie

#22973 - 03/09/03 05:48 PM Re: Probably a dumb question  
iwire  Offline
Moderator
Joined: Jan 2003
Posts: 4,391
North Attleboro, MA USA
Yes it is a violation that should be corrected.

For a 200 amp main breaker you need at least 2/0 copper or 4/0 Aluminum

2002 NEC Table 310.15(B)(6)


Bob Badger
Construction & Maintenance Electrician
Massachusetts

#22974 - 03/09/03 07:20 PM Re: Probably a dumb question  
Bill Addiss  Offline
Member
Joined: Oct 2000
Posts: 3,878
NY, USA
Larry,

Welcome to ECN!
Kudos for spotting that. [Linked Image]

I met a New Homeowner recently that wasn't so lucky. They had hired someone (they call them Engineers on LI) to check the Home out before buying, but he failed to pick up on a similar situation.

[Linked Image]

This is a 200 Amp Panelboard and the "upgrader" did not change the wire size from the existing 100A Service.

Notice something in the bottom left-hand corner inside the panel. Something else that he forgot to do ....

[Linked Image]

[Linked Image]
Bill

[This message has been edited by Bill Addiss (edited 03-09-2003).]


#22975 - 03/09/03 09:04 PM Re: Probably a dumb question  
ldwilson  Offline
Junior Member
Joined: Mar 2003
Posts: 4
Seneca,SC,USA
Hi Guys, Thanks for the kudos. I was pretty sure that I was correct but wanted to ask the experts.
Thanks again for the help.
Larry W.
South Carolina


Larry W.

#22976 - 03/09/03 09:21 PM Re: Probably a dumb question  
CTwireman  Offline
Member
Joined: Feb 2002
Posts: 840
Connecticut, USA
Bill, that looks like a pretty horrific "upgrade." Any idea who the guilty party is?

Peter


Peter

#22977 - 03/09/03 09:31 PM Re: Probably a dumb question  
circuit man  Offline
Member
Joined: Nov 2001
Posts: 273
saluda,s.c.
hi larry, glad to see another member from s.c.what part are you from? i'm from saluda.ERWIN


#22978 - 03/10/03 12:25 AM Re: Probably a dumb question  
Bill Addiss  Offline
Member
Joined: Oct 2000
Posts: 3,878
NY, USA
CT,

No, I don't know who did the work, but I was told that the previous owner was a "Contractor". 'nuff said, there was quite a few unconventional things around the house. I can sometimes figure out from looking around what kind of "contractor" someone was, (from what looks good) but then again, sometimes I can't.

Bill


#22979 - 03/11/03 09:16 AM Re: Probably a dumb question  
ldwilson  Offline
Junior Member
Joined: Mar 2003
Posts: 4
Seneca,SC,USA
Hi Erwin, I am from Seneca, SC
Larry W.
South Carolina


Larry W.

#22980 - 03/11/03 11:58 AM Re: Probably a dumb question  
pauluk  Offline
Member
Joined: Aug 2001
Posts: 7,520
Norfolk, England
Hey guys, I came through both Saluda and Seneca when I was in S.C. about 10 years ago. Beautiful area! [Linked Image]


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