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Author Topic: How a circuit breaker works  (Read 5270 times)

Jonathan Johnson

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Re: How a circuit breaker works
« Reply #10 on: February 24, 2019, 01:52:01 AM »

For the rest of the story about my neighbor's possible bad breaker, a real electrician showed up and determined it had tripped at some point and was not reset back on hard enough.

 it looked like it was on but wasn't. I didn't try exercising them all... Glad it was relatively painless for her.  Sad that I didn't catch it, but I have old school fuses in my panel.

JR

It usually takes far more force to reset a breaker (by pushing the handle toward "off") than simply turning it off and back on.
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Stop confusing the issue with facts and logic!

Chris Hindle

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Re: How a circuit breaker works
« Reply #11 on: February 24, 2019, 12:17:34 PM »

It usually takes far more force to reset a breaker (by pushing the handle toward "off") than simply turning it off and back on.
I find often that a blown breaker will trip, but not turn the lever off.
Just run a finger across each one, and the tripped one will snap all the way off.
I'm guessing this was a "slight" overload, and not a massive short.
Chris.
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John Roberts {JR}

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Re: How a circuit breaker works
« Reply #12 on: February 24, 2019, 01:50:39 PM »

I find often that a blown breaker will trip, but not turn the lever off.
Just run a finger across each one, and the tripped one will snap all the way off.
I'm guessing this was a "slight" overload, and not a massive short.
Chris.
I learned after the fact there was an electric heater on that branch. They only told me about the outlets not working.  ::)

All the in-wall electric heaters in my house are wired 240V and have their own breakers in a box outside. Apparently a 120V heater, perhaps one of those portable fire starters.

Next time I will cycle the breakers off/on if I have to deal with questionable breakers.

I'm glad it was something simple... in hindsight I would have probably found it if I checked under the hood but apparently that was not even necessary. So still glad I deferred to a professional even though my initial judgement to suspect a breaker turns out to be correct.

JR
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Re: How a circuit breaker works
« Reply #12 on: February 24, 2019, 01:50:39 PM »


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