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Old 02-27-2011, 07:31 PM   #1
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house condensation? electrical problems?


can a house condensate so much that you can wipe droplets off the door caseings and walls?
there has not been any heat on all winter, today was a warmer day, 60 degree, but soggy day, roof does not apear to be leaking, because I have the cealing out to the studs and can clearley see the underside of the roof.

I had a couple electrical problems today while working there, recptical poped with big blue flash then smoked. I shut off power and repaired recptical
then another recptical did the same thing this time I noticed the condensation on the wire driping into the box.

the walls are down to the studs, wire and boxes are exposed to work on.

had condensation all over the door of the main service panel, so I killed all the power, each breaker and main, and went home for the evening.

did the condensation cause these recpticals to pop and big blue flash?

what do I do to get this under control?

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Old 02-28-2011, 12:21 PM   #2
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house condensation? electrical problems?


Yes you can get a short circuit as water (perhaps mixed with drywall dust going back to construction time) gets into a receptacle.

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Old 02-28-2011, 12:25 PM   #3
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house condensation? electrical problems?


Sounds like you may be using a portable propane heater, which does generate alot of moisture and yes mix moisture and electric and you could cause a short.

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Old 02-28-2011, 04:33 PM   #4
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house condensation? electrical problems?


no heater at all, I had been running the circular saw most of the day within a couple feet of the recptical, guess it could have been saw dust with the condensation? there was no face plate on the recptical box.
today was better, pulled the entire circuit out, someone had 20 amp 220 double pull tied breaker on 10/3 running into a j box and 3, 120 branch wires out to 3 recpticals, never did like how that was done! now its gone! so I just ran a temporary dedicated 12/2 to a one recptical so I could have power to use construction tools. I also ran the central heat for the first time today up to about 55 degrees and it seemed to clear up most of the condensation, but today was also a clear day that got to about 42 degrees.
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Old 02-28-2011, 05:23 PM   #5
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house condensation? electrical problems?


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Originally Posted by treerat View Post
, pulled the entire circuit out, someone had 20 amp 220 double pull tied breaker on 10/3 running into a j box and 3, 120 branch wires out to 3 recpticals, never did like how that was done! now its gone! so
There is nothing inherently wrong with that setup. Assuming it was done properly with good connections, it is called a multi wire branch circuit. The 10/3 was unnecessary, 12/3 would have been fine.
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