|
Home Repair - - If it ain't broken, don't fix it. Otherwise look here.
|
|
|
|
If you were Registered and logged in, you could reply and use other advanced thread options
|
Posted by Robert11 on April 8, 2008, 8:13 am
Hi again,
Should have asked this as part of my previous circuit breaker question, but
forgot:
Is it common or typical for an "old" house service box circuit breaker
(perhaps 25 yrs old) to go bad,
and trip by itself, even if there is nothing wrong with the circuit it is
controlling ?
What's a "typical" life for these things ?
Thanks again,
Bob
|
|
Posted by RBM on April 8, 2008, 8:39 am
> Hi again,
>
> Should have asked this as part of my previous circuit breaker question,
> but forgot:
>
> Is it common or typical for an "old" house service box circuit breaker
> (perhaps 25 yrs old) to go bad,
> and trip by itself, even if there is nothing wrong with the circuit it is
> controlling ?
>
> What's a "typical" life for these things ?
>
> Thanks again,
> Bob
>
A lot of older Murray brand will do that. The internal latch that holds the
handle in the on position, just stops holding and vibrations can cause them
to turn off
>
>
|
|
Posted by hallerb@aol.com on April 8, 2008, 8:40 am
> Hi again,
>
> Should have asked this as part of my previous circuit breaker question, bu=
t
> forgot:
>
> Is it common or typical for an "old" house service box circuit breaker
> (perhaps 25 yrs old) to go bad,
> and trip by itself, even if there is nothing wrong with the circuit it is
> controlling ?
>
> What's a "typical" life for these things ?
>
> Thanks again,
> Bob
yes it is............ breakers are designed to become more sensitive
as they age, and its more common for a breaker to become super
sensitive if its on a heavily loaded circuit.
theres no set life. but do replace the questionable breaker
|
|
Posted by dpb on April 8, 2008, 10:24 am
hallerb@aol.com wrote:
...
> ...breakers are designed to become more sensitive as they age, ...
Have you any reference from a manufacturer that is a design criterion?
Don't say it isn't so, but I've never heard or seen it mentioned in any
literature which one would think would be so if were an actual design
feature.
I just did a search of the entire product brochure for the Square D QO
breaker series and there's no mention of "age" or "aging" or
"sensitivity" throughout.
--
|
|
Posted by hallerb@aol.com on April 8, 2008, 10:39 am
> hall...@aol.com wrote:
>
> ...
>
> > ...breakers are designed to become more sensitive as they age, ...
>
> Have you any reference from a manufacturer that is a design criterion?
>
> Don't say it isn't so, but I've never heard or seen it mentioned in any
> literature which one would think would be so if were an actual design
> feature.
>
> I just did a search of the entire product brochure for the Square D QO
> breaker series and there's no mention of "age" or "aging" or
> "sensitivity" throughout.
>
> --
hey when there trying to sell you something NEW they dont mention
againg might hurt sales.......
dont have a link of one even exists, but its true of all
breakers.........
a matter of liability, as it ages it has to change.
I repair office machines for a living that draw lots of current.
customer complains its tripping breaker, replace breaker trouble gone
provided circuit isnt overloaded.
some machines i service have breakers built in, and they fail
sensitive.
breakers trip from heat, my theory is contacts degrade a little, heat
and make things more sensitive.
I used to spend a couple days a month at westinghouse beaver, breaker
manufacturer. back before it was sold off, a fascinating place. nice
friendly folks, who told me more than i really wanted to know about
breakers. i tended to have lunch with the engineering group who were
the first to talk about more sensitive with age.......... had a bunch
of machines in engineering.
|
Page 1 of 4 1 2 3 > last >>
| Similar Threads | Posted | | Circuit breakers and rewiring a house | October 18, 2005, 8:48 am |
| Circuit Breakers & Residential Service Box Question | May 30, 2008, 7:37 am |
| Electrical Service Box Question & Half Thick Circuit Breakers ? | February 23, 2006, 1:14 pm |
| circuit breakers | December 27, 2006, 9:10 pm |
| Circuit Breaker Indication In A House Service Box Question | April 8, 2008, 7:52 am |
| Circuit breakers and rewi | October 19, 2005, 8:16 am |
| All circuit breakers off but still have power | September 21, 2006, 7:01 pm |
| Class CTL Circuit Breakers | November 19, 2006, 5:33 pm |
| MOVs are like circuit breakers? | February 23, 2007, 2:22 am |
| HVAC circuit breakers? | August 5, 2007, 10:45 am |
|
|
|
Yahoo! 
Google 
Windows Live 
del.icio.us 
digg 
Netscape 
XML Sitemap