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#10195 - 06/01/02 05:34 AM Push-ups or Jumping Jacks?
Redsy Offline
Member
Registered: 03/28/01
Posts: 2056
Loc: Bucks County PA
I've noticed that many of the "Home Inspection Reports" related to real-estate transactions recommend "exercising" circuit breakers on a regular basis.
What are your thoughts?
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#10196 - 06/01/02 06:03 AM Re: Push-ups or Jumping Jacks?
Bill Addiss Offline
Member
Registered: 10/07/00
Posts: 3875
Loc: NY, USA
Redsy,

I've always thought the same thing and would probably bet that I've read it somewhere in mfgrs instructions or recommendations. I've seen a lot of times where someone will turn off their Main to do work (as recommended) and it will not reset, and I was thinking that 20+ years in one position in a damp basement can't be good for anything.

Bill
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#10197 - 06/01/02 07:01 AM Re: Push-ups or Jumping Jacks?
sparky Offline
Member
Registered: 10/18/00
Posts: 5303
I had heard some years ago of a UL requirement to 'mechanically' operate breakers manually but have never verified this.
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#10198 - 06/01/02 07:29 AM Re: Push-ups or Jumping Jacks?
pauluk Offline
Member
Registered: 08/11/01
Posts: 7520
Loc: Norfolk, England
I think it's a good idea to cycle breakers, maybe off and on a couple of times ar least once a year.
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#10199 - 06/01/02 09:38 AM Re: Push-ups or Jumping Jacks?
Nick Offline
Member
Registered: 08/13/01
Posts: 599
Loc: Riverside, CA
That just happened to me last week. I swung by a friends to demo a floor box she didn't want before the new carpet was put down the next day. I figured I could squeeze it in before my final at school the same night. Rather that trace out which circuit I threw the main. On my way out I turned it back on and wouldn't you know it, the thing would not reset. I don't know if it was from not being exercised or if it just broke. It did not sound to good inside.
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#10200 - 06/01/02 11:58 AM Re: Push-ups or Jumping Jacks?
sparky66wv Offline
Member
Registered: 11/17/00
Posts: 2232
Loc: West Virginia
Outdoor discos mounted below OH meter bases are the worst... Especially when SEU cable and a "WP" hub is involved. I tend to shy away from switching any mains unless absolutely neccesary.

*crunch*
_________________________
-Virgil
Residential/Commercial Inspector
5 Star Inspections
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#10201 - 06/01/02 07:03 PM Re: Push-ups or Jumping Jacks?
Bjarney Offline
Moderator
Registered: 04/10/02
Posts: 2527
Loc: West-Southern Inner-Northeast ...
66vdub-- sounds like a classic high-pucker-factor 'trap.'

Rambling Notes on circuit breakers after installation

NETA MTS-2001 7.6.1.1 Circuit Breaker INSPECTION PROCEDURES “Inspect ∙ Clean ∙ Operate the circuit breaker to insure smooth operation…”

{Factory-applied lubricants harden/leach. Do not use spray lube/cleaner unless it’s in CB maintenance instructions.}

Vaguely related links: http://www.nema.org/products/div5/5ab/guess.html http://www.seekandsource.com/news/Articlespec.Asp?Article_id=ARTI93 http://www.powellservice.com/PASD%20Test%20Procedures/TABLE%2010.7.doc http://www.ch.cutler-hammer.com/fred/cscpgh/fax/00000291.pdf http://www.ch.cutler-hammer.com/fred/cscpgh/fax/00000253.pdf http://www.ch.cutler-hammer.com/fred/cscpgh/fax/00000607.pdf http://www.ch.cutler-hammer.com/fred/cscpgh/fax/00000615.pdf http://standards.ieee.org/colorbooks/sampler/Bluebook.pdf


[This message has been edited by Bjarney (edited 06-02-2002).]
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#10202 - 06/01/02 09:00 PM Re: Push-ups or Jumping Jacks?
hurk27 Offline
Member
Registered: 05/15/02
Posts: 68
Loc: Portage, Indiana
does any body use nolox when you install a main or any other high amperage breaker on a buss that's aluminum. I have had many breakers fail because of this problem and have been using the nolox for some time.
:Wayne
_________________________
Be Fair, Be Safe
Just don't be Fairly Safe
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#10203 - 06/02/02 11:55 AM Re: Push-ups or Jumping Jacks?
Bjarney Offline
Moderator
Registered: 04/10/02
Posts: 2527
Loc: West-Southern Inner-Northeast ...
hurk— Be Careful. That may be a misapplication if using particle-bearing inhibitor or any substance on the spring-clip/stab end of molded-case breakers. Conductive particles in sticky paste may incite carbon tracking and breakdown if left in contact with {bakelite} insulating surfaces.


[This message has been edited by Bjarney (edited 06-03-2002).]
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#10204 - 06/03/02 04:01 AM Re: Push-ups or Jumping Jacks?
Redsy Offline
Member
Registered: 03/28/01
Posts: 2056
Loc: Bucks County PA
I've wiped a little nolox on meter stabs when I've had difficulty removing the meter.
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