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-   -   Bad connection at panel box. (http://www.diychatroom.com/f18/bad-connection-panel-box-12734/)

today 10-26-2007 03:38 PM

Bad connection at panel box.
 
I'll get right to the point. For some reason I was not getting power to the wall receptacles in my playroom, which has a dehumidifier clicking on and off normally to keep the place at a decent humidity. So I went straight to my 200 amp panel box. When I pulled the circuit breaker out I noticed it had a buildup of carbon or what ever, where it connects to the panel box bus. Also where, the male part of the bus slides into the circuit breaker, had a bunch of buildup on it to.

I then removed the buildup to on both sides of the bus insert with a foul and finished off with a diamond-based cloth which made things pretty clean. I then installed a new circuit breaker. I then finished off by blowing out the 200 amp Murray panel box with compressed air. My question now is did I do the right thing?

joed 10-26-2007 04:26 PM

Normally a burnt bus connetion is not repairable depends on how bad it was. If it was me and I had some empty slots I would move the new breaker to the unused slots or I would consider a complete panel replacement.

Andy in ATL 10-26-2007 04:59 PM

This may sound like a silly question , but would you tell us the name brand, type, and approx. year of installation???

HouseHelper 10-26-2007 06:09 PM

I bet it's an ITE, circa early 80's.

Andy in ATL 10-26-2007 07:08 PM

Maybe a Zinsco. That was my gut..

today 10-27-2007 12:20 PM

joerd,

Thank you for the info. I talked to a local electrician, and he said what I did was just fine.

Now I have to make up my own mind and decide which is best. Leave it alone? or move it.


Andy: 200 amp Murray, CTL. Installed in the late 70s.

joed 10-27-2007 02:04 PM

If you have the space in the panel it is very simple to move it. I would do it.

jwhite 10-27-2007 02:26 PM

Quote:

Originally Posted by today (Post 70181)
joerd,

Thank you for the info. I talked to a local electrician, and he said what I did was just fine.

Now I have to make up my own mind and decide which is best. Leave it alone? or move it.


Andy: 200 amp Murray, CTL. Installed in the late 70s.

Once the metal buss bar has heated once, it is more likely to heat again. The metal becomes dammaged.

If you are lucky, you can move the breaker to a new spot in the panel. You may need to replace the entire panel guts, or entire panel.

I would watch this breaker for signs of heating.

DuncanB 10-28-2007 12:22 AM

The bus stabs (the part where it makes contact) on aluminum bussed panel is plated with a thin layer of tin. If you filed it away, it's not a matter of "if" it will go, but a matter of "when". The overheating doesn't make matters any better.

If you have space in the panel on the same phase as the burnt one, you need to put a NEW breaker in that space. If not, a panel change is necessary.


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