The Electrical Contractor Network

ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

Books, Tools and Test Equipment for Electrical and Construction Trades

Register Now!

Register Now!

We want your input!

Featured:
   

2017 NEC and Related
2017 NEC
Now Available!

   
Recent Posts
Industrail Control Panel bonding per 409.108
by sparkyinak
Today at 03:17 PM
Calling all Non-US members!! (Non-US only)
by aussie240
Yesterday at 02:39 AM
Photo Upload Tutorial
by DanK
12/06/16 11:35 PM
Sprinklered equipment 26-008
by bigpapa
12/02/16 04:24 PM
On Delay Relay with Auto Reset
by Potseal
12/01/16 09:59 AM
New in the Gallery:
12.5A through 0.75mm˛ flex (just out of curiosity)
Shout Box

Top Posters (30 Days)
gfretwell 13
HotLine1 9
Texas_Ranger 8
sparkyinak 8
Trumpy 6
Who's Online
0 registered (), 185 Guests and 6 Spiders online.
Key: Admin, Global Mod, Mod
Topic Options
Rate This Topic
#34733 - 02/21/04 04:45 PM First time happening to me.
Edward Offline
Member

Registered: 12/14/02
Posts: 309
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

Top
Work Gear for Electricians and the Trades

Work Gear for Electricians and the Trades
Work Gear for Electricians and the Trades
Arc Flash Clothing, Gloves, KneePads, Tool Belts, Pouches, Tool Carriers, etc. etc....

#34734 - 02/21/04 04:54 PM Re: First time happening to me.
DougW Offline
Member

Registered: 06/08/03
Posts: 1083
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)

Top
#34735 - 02/21/04 06:03 PM Re: First time happening to me.
elecbob Offline
Member

Registered: 08/23/02
Posts: 142
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

Top
#34736 - 02/21/04 06:32 PM Re: First time happening to me.
Roger Offline
Member

Registered: 05/18/02
Posts: 1779
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).]

Top
#34737 - 02/21/04 08:49 PM Re: First time happening to me.
golf junkie Offline
Member

Registered: 04/22/01
Posts: 511
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

Top
#34738 - 02/22/04 06:18 AM Re: First time happening to me.
NORCAL Offline
Member

Registered: 09/25/02
Posts: 807
There was a company called American Switch later Zinsco/Amercan Switch.

Top
#34739 - 02/22/04 02:11 PM Re: First time happening to me.
wa2ise Offline
Member

Registered: 11/29/02
Posts: 771
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.

Top
#34740 - 02/22/04 02:30 PM Re: First time happening to me.
:andy: Offline
Member

Registered: 10/18/03
Posts: 272
Loc: Germany
why exactly do the FP breakers not trip? what`s the background? Mechanic damage or Production fault?

Top



ECN Electrical Forums - sponsored by Electrical Contractor Network - Electrical and Code Related Discussion for Electrical Contractors, Electricians, Inspectors, Instructors, Engineers and other related Professionals