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#117655 06/28/04 04:55 AM
Joined: Jan 2003
Posts: 4,391
iwire Offline OP
One of the service guys found this on a service call.

Details to follow when I get back from NY.

[Linked Image]

[Linked Image]

[This message has been edited by iwire (edited 06-28-2004).]

Bob Badger
Construction & Maintenance Electrician
#117656 06/28/04 09:49 AM
Joined: Apr 2002
Posts: 2,527
iwire — A fantastic Monday-morning shot.

"Lest we forget."

#117657 06/28/04 11:28 AM
Joined: Feb 2004
Posts: 1,438
Dang that must've been a deafening bang when that happened! [Linked Image] Was someone torquing one of the neutral lugs & slipped into the phase busbars?


#117658 06/28/04 04:38 PM
Joined: Apr 2004
Posts: 36
I found a simular damage with a water drip between A and B phase in a 100 amp service before. I wonder if this is outdoors.

#117659 06/28/04 10:30 PM
Joined: May 2003
Posts: 2,876
e57 Offline
Lostazhell - I thought the same thing. Someone is seeing spots now, maybe?

No, I take that back! In pic 1, note the clean spots where the cover of this section would go. They're clean! The cover was on when it happened!

I don't think it happened over time though, due to the sprayed metal.

A mystery......... Oooooo!

Mark Heller
"Well - I oughta....." -Jackie Gleason
#117660 06/29/04 03:07 AM
Joined: Feb 2004
Posts: 1,438
I see what you're talking about, but the cover would be mounted to the 2 top metal "flanges?" either side of the neutral bus.. & those aren't clean like the locations I think you're referring to... If I remember right, & if I'm looking at this right, this is a GE 3phase (400A?)panel.. Isn't the deadfront attached to the panel cover??

What was bolted up there?? [Linked Image] Looking at this again is making me think something along the lines of a forklift skid.. The blown out section looks about the same size to me...
Tim, I've some across water damaged panels before also, but this is one hella blowout!


PS Bob, don't forget to reidentify the white on the top breakers (Ckts 1,3,5 & 2,4,6) [Linked Image]

#117661 06/29/04 06:09 PM
Joined: Oct 2003
Posts: 289
In my opinion, this could have been a lightning strike onto the phase, breaking through to the (grounded somewhere?) neutral...

With how many Amperes were the Breaker bus bars fed?

Cant wait to hear more.

Really great pics.

[This message has been edited by :andy: (edited 06-29-2004).]

#117662 06/29/04 09:37 PM
Joined: Feb 2003
Posts: 939
randy .. take a look at the breaker again that is not a GE at all it is westinghouse breakers just let you know because i ran into this before and yes it is 400 amp bus bar size but possiblty 600 because i cant tell what size larger conductors come in bottom of box unless the whole thing is inverted.

merci , marc

[This message has been edited by frenchelectrican (edited 06-29-2004).]

Pas de problme,il marche n'est-ce pas?"(No problem, it works doesn't it?)

#117663 06/29/04 10:00 PM
Joined: Sep 2002
Posts: 943
Likes: 2
Those are GE TEB or TED breakers.

#117664 06/29/04 10:56 PM
Joined: Feb 2003
Posts: 939
opps sorry i stand corrected it was my mistake i did grab the ge catalog book sure you are correct my blunder here sorry about that

merci , marc

Pas de problme,il marche n'est-ce pas?"(No problem, it works doesn't it?)

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