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Toast-a-Buss #122549
11/24/05 09:15 AM
11/24/05 09:15 AM
electure  Offline
Joined: Dec 2000
Posts: 4,265
Fullerton, CA USA
Forwarded from Joe Tedesco:

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]

Tools for Electricians:
Re: Toast-a-Buss #122550
11/24/05 11:07 PM
11/24/05 11:07 PM
Hemingray  Offline
Joined: Apr 2005
Posts: 199
Lehigh Acres, FL
whoa, was that GLOWING?!

Re: Toast-a-Buss #122551
11/25/05 06:58 AM
11/25/05 06:58 AM
George Corron  Offline
Joined: May 2001
Posts: 717
Lorton, Va USA
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.

Re: Toast-a-Buss #122552
11/27/05 04:31 PM
11/27/05 04:31 PM
mxslick  Offline
Joined: Oct 2004
Posts: 803
Atomic City, ID USA
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.
Re: Toast-a-Buss #122553
11/27/05 06:36 PM
11/27/05 06:36 PM
Elviscat  Offline
Joined: Aug 2005
Posts: 214
Seattle Washington USA
I have never worked with busses like, how are those bars joined? could a bad/loose connection have aggravated the problem?


Re: Toast-a-Buss #122554
11/29/05 02:19 PM
11/29/05 02:19 PM
dlhoule  Offline
Joined: Apr 2005
Posts: 73
Saline, MI 48197
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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