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#34733 - 02/21/04 04:45 PM First time happening to me.
Edward Offline
Member
Registered: 12/14/02
Posts: 308
Loc: California
Today i accidently touched hot and the grounded wire. Bam,sparks,smoke...However. the 15Amp breaker did not trip.This is the first time i have seen this happening.

All i could make out from the cover plate:
AMERICAN ELECTRIC or AMERICAN (something)
It started with AMERICAN.

Advised the client to change the subpanel.

Edward.
_________________________
Thanks
Edward
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#34734 - 02/21/04 04:54 PM Re: First time happening to me.
DougW Offline
Member
Registered: 06/08/03
Posts: 1143
Loc: North Chicago, IL
Wise choice.

Maybe the "grounded" conductor wasn't (at least at the panel) effectively grounded?

Did it pop the OCD at the main panel? (depending on the branch OCD size)
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#34735 - 02/21/04 06:03 PM Re: First time happening to me.
elecbob Offline
Member
Registered: 08/23/02
Posts: 141
Loc: WA
I frequently have this problem on Federal Pacific and Zinsco panels. Customers freak out when I give them a demostration and I usually end up with a job for a panel change out. As a sidenote: I usually install Square D QO series panels.
Bob
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#34736 - 02/21/04 06:32 PM Re: First time happening to me.
Roger Offline
Member
Registered: 05/18/02
Posts: 1716
Loc: N.C.
American Electric manufactures replacement or reconditions old breakers for FP panels.

Roger

[This message has been edited by Roger (edited 02-21-2004).]
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#34737 - 02/21/04 08:49 PM Re: First time happening to me.
golf junkie Offline
Member
Registered: 04/22/01
Posts: 507
Loc: York, NE
I pinched a wire once with a wireway cover. The #10 THHN burned clean thru, the GE breaker never did trip.

It happens.

GJ
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#34738 - 02/22/04 06:18 AM Re: First time happening to me.
NORCAL Offline
Member
Registered: 09/25/02
Posts: 865
There was a company called American Switch later Zinsco/Amercan Switch.
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#34739 - 02/22/04 02:11 PM Re: First time happening to me.
wa2ise Offline
Member
Registered: 11/29/02
Posts: 782
Loc: Oradell NJ USA
Take a look at this web page on FPE "No Trip" brakers.
http://www.inspect-ny.com/fpe/fpepanel.htm

Was that one of these?

My father used to work for Federal in Newark NJ back in the early 1950's doing accounting type work. He used some of their stuff when he built our house, and I don't think he would have used a stab-lok panel if he was aware of any issues with them. That panel got replaced with a Square D QO panel recently.
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#34740 - 02/22/04 02:30 PM Re: First time happening to me.
:andy: Offline
Member
Registered: 10/18/03
Posts: 289
Loc: Germany
why exactly do the FP breakers not trip? what`s the background? Mechanic damage or Production fault?
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