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Wild Bill[_2_] Wild Bill[_2_] is offline
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Default One circuit 125V, others 117V, why?

On 12/25/2015 10:31 PM, IGot2P wrote:
Approximately 8 years ago I built (with the help of a contractor) a 1,200 sq. ft. shop detached from our home (nice shop with central heat and
air, half bath, hot water, etc.).

Our home has a 200 amp box so I simply put in a 100 amp breaker and run it to a sub panel in the new shop which has a 100 amp breaker box.
Everything in both the shop and house has worked fine since the beginning and still does but I did find something somewhat unique.

I have one item in the shop that draws 23+ amps on a 115 volt circuit and to my surprise had never popped a 20 amp circuit breaker. All outlets
and lights are wired with #12 wire so I know that 23+ amps is a bit too much but so be it. Well, I moved the item a small amount and happened to
plug it into a different outlet which happened to be on a different breaker and it popped the breaker after running for about 20 minutes. Tried
it again and the same thing happened. Out of curiosity I checked the voltage and that particular circuit (the one that the breaker pops on) has
125 volts and all of the others run in the 115/117 range.

Anyone have a clue of how this could happen when they are all coming out of the same box and are approximately the same distance from the box?

BTW - if you intended reply contains the word "code" or "insurance" please don't post as it has nothing to do with my question.


Since you don't seem concerned about safety, codes or insurance, wire the ****ing circuit direct to the buss. You think I give a **** about idiots?