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Posted By: ldwilson Probably a dumb question - 03/09/03 04:17 PM
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.
Posted By: txsparky Re: Probably a dumb question - 03/09/03 04:39 PM
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).]
Posted By: iwire Re: Probably a dumb question - 03/09/03 09:48 PM
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)
Posted By: Bill Addiss Re: Probably a dumb question - 03/09/03 11:20 PM
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).]
Posted By: ldwilson Re: Probably a dumb question - 03/10/03 01:04 AM
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
Posted By: CTwireman Re: Probably a dumb question - 03/10/03 01:21 AM
Bill, that looks like a pretty horrific "upgrade." Any idea who the guilty party is?

Peter
Posted By: circuit man Re: Probably a dumb question - 03/10/03 01:31 AM
hi larry, glad to see another member from s.c.what part are you from? i'm from saluda.ERWIN
Posted By: Bill Addiss Re: Probably a dumb question - 03/10/03 04:25 AM
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
Posted By: ldwilson Re: Probably a dumb question - 03/11/03 01:16 PM
Hi Erwin, I am from Seneca, SC
Larry W.
South Carolina
Posted By: pauluk Re: Probably a dumb question - 03/11/03 03:58 PM
Hey guys, I came through both Saluda and Seneca when I was in S.C. about 10 years ago. Beautiful area! [Linked Image]
Posted By: circuit man Re: Probably a dumb question - 03/12/03 01:44 AM
pauluk glad to hear you liked our towns. there a nice place to live.
Posted By: master66 Re: Probably a dumb question - 03/13/03 02:04 AM
At least this person didn't throw the bonding screw away!

No bonding is one of the most commonly overlooked things that do-it-yourselfers do.

"Oh, that little green screw in the plastic bag? We threw that away." Or "We never got one of those."

I think that I'm going to dig through my screw drawer and start carring some screws and straps with me.

Not to long ago I had to have a customer dig one out of the garbage. Good thing it wasn't garbage day! [Linked Image]
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