A/C voltage fluctuates in home


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Old 03-03-16, 06:20 PM
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A/C voltage fluctuates in home

Every once in a while I notice some of my 4 ft. fluorescent shop lights flickering. (The bulbs are good). I had the power co, come out a couple months ago and check and they replaced the connections from the drop cable to my service entrance cable. He said they looked a little corroded. The svc guy said I had 112 at the meter. I checked my outlets inside and they were 112 vac

Once in a while I'll notice them flickering. It just happened today. So I grabbed my VOM meter and checked The line voltage, it was 103.8 VAC. I also checked with a second meter I own and got the same reading.

Within 10 minutes, it jumped up to 112 vac.
I have a 100 amp breaker panel and there wasn't much energy being drawn when this happened.

Any thoughts about what might be causing this?

thanks, Bill
 
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Old 03-03-16, 07:33 PM
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You need to check to see if the other leg of the panel goes higher when the one leg drops. Also how many people does the transformer serve?
 
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Old 03-03-16, 09:45 PM
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If you know which houses are on the same transformer as you..... ask them if they have the same issue.
 
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Old 03-04-16, 03:51 PM
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A/C voltage

Thanks for the replies. I had the power co. here today and he found that one of the 110 vac connectors from my drop cable on the pole was warm. He disconnected it and I checked to see if that was the bus that my shop lights were on ( and it was). He replaced it.

Hopefully that was it.
 
 

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