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Old 01-21-2008, 01:57 PM   #16
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Main house breaker keeps tripping


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Originally Posted by elkangorito View Post
I believe that now might be the time to conduct both continuity & insulation resistance tests on the suspect circuit. Unfortunately, this will require the use correct equipment or an electrician with the correct equipment.
That's a good call, but my main concern is to have this short circuit taken care of. Although, I'm hoping it doesn't boil down to me having to do that.

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Old 01-21-2008, 02:01 PM   #17
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Main house breaker keeps tripping


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That's a good call, but my main concern is to have this short circuit taken care of. Although, I'm hoping it doesn't boil down to me having to do that.
The abovementioned tests will definitely find any problems in the circuit & you will not need to rip anything apart to conduct the tests. Also, the more often a breaker trips under short circuit conditions, the more it deteriorates. As a general rule, I replace all breakers that have tripped under these conditions.

I would suggest isolating the circuit until more testing has been carried out.
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Old 01-21-2008, 04:08 PM   #18
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Main house breaker keeps tripping


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I don't think there are other circuits upstream as everything else works ok.

You need to determine this. Test EVERYTHING.

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I'll do some more troubleshooting, but I'm running out of options...
If the circuit is as simple as you describe it sould be simple. Remove both outlets from the wiring. Disconnect all conductors.

Problem is MOST likely in one of the two recep boxes. Sometimes when they strip the 3 wire cable they slice the insulation . Look for damage/burn marks.

Is the cable at the panel the same exact type as at the recep box?
I'd lose the metal extensions. They cause more fires than they prevent. Use plastic if necessary.
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Old 01-21-2008, 07:18 PM   #19
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Main house breaker keeps tripping


At first I was thinking of shorts due to metal box clamps- Since plastic boxes were used, staples shorting the cable external to the box could also be a possibility.
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Old 01-22-2008, 12:19 AM   #20
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Main house breaker keeps tripping


Ok... I've repaired the problem. Here's what I did...

Pulled the wires out of the breaker and flipped them on. Tested that there was 120v. Flipped them off and noticed that there was still ~98-100v. Kinda odd. The other 15a had ~50v going through still in the "off" position. I bought new breakers and tested everything before turning them on. I'm glad it all works.

I was definitely thinking the worse.

Thanks to everyone for their suggestions, opinions and help.
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Old 01-22-2008, 01:36 AM   #21
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Main house breaker keeps tripping


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The breaker is NOT the problem.

Crap!


Never say never.

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