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What in Tarnation?
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by timmp, September 10
Plumber meets Electrician
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by timmp, September 10
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#122549 11/24/05 09:15 AM
Joined: Dec 2000
Posts: 4,293
Member
Forwarded from Joe Tedesco:

Quote
One night the whole 2nd floor lost power. So I started working backwards , it seems some had connencted a 600amp buss downline on a 250amp feed, as you can see the 250 amp is toast..... Joe, I work in an industrial mill , and I take pictures of it all


[Linked Image]


[Linked Image]

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#122550 11/24/05 11:07 PM
Joined: Apr 2005
Posts: 200
H
Member
whoa, was that GLOWING?!


Cliff
#122551 11/25/05 06:58 AM
Joined: May 2001
Posts: 717
G
Member
One thing's for certain, at one point it was glowing. [Linked Image]
I often....."acquire" old buss bars for radio grounding, I'm not sure I want these.

#122552 11/27/05 04:31 PM
Joined: Oct 2004
Posts: 806
Member
Glowing indeed! Notice that the failure point appears to be where the busbars were joined?

They would have had to been quite hot for some time to turn yellow like that!


Stupid should be painful.
#122553 11/27/05 06:36 PM
Joined: Aug 2005
Posts: 214
E
Member
I have never worked with busses like, how are those bars joined? could a bad/loose connection have aggravated the problem?

-Will

#122554 11/29/05 02:19 PM
Joined: Apr 2005
Posts: 73
D
Member
Wow, I wonder if an infrared camera would have picked up the problem, before it got to that stage? We do infrared 2x year.


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