Topic 'Re: high reading' in forum 'Home Improvement' - dslreports.com

Re: high reading

Fri, 15 Feb 2013 15:13:11 EDT

AVD posted : »www.icemonkey.com/p3-internation···ic-timer
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Re: high reading

Fri, 15 Feb 2013 15:12:14 EDT

AVD posted : icemonkey.com had them on sale last week.

Re: high reading

Thu, 14 Feb 2013 21:49:32 EDT

tschmidt posted :

said by sap5885 :

Not having any problems with the light bulbs, will call in an electrician to be on the safe side. Thx

If that is the case the voltage cannot be as high as you measured. I agree with leibold and lutful meter is reading peak rather then RMS.

Since nothing has blown up yet I'd hold off on calling an electrician and do what bluechalk suggested. Get a Kill-A-Watt. It is a handy little device for all sorts of stuff and will tell you right away if you have a problem.

»www.p3international.com/products···-ce.html

/tom

Re: high reading

Thu, 14 Feb 2013 21:03:14 EDT

bluechalk posted : Go to your nearest hardware store and get a Kill A Watt. It should cost around $20. Its designed to plug into a wall power outlet and among other things, give you an accurate voltage reading.

Re: high reading

Wed, 13 Feb 2013 22:07:10 EDT

lutful posted :

said by whizkid3:

said by lutful:

"peak" value for perfect 120V AC sine wave is actually 172V.

120V x 1.414 = 169.7V

I am a DMMy who multiplied 172V peak by 0.7 to get 120V rms. :D

Re: high reading

Wed, 13 Feb 2013 21:52:22 EDT

whizkid3 posted :

said by lutful:

By the way, the "peak" value for perfect 120V AC sine wave is actually 172V.

120V x 1.414 = 169.7V

you are a little off.

Re: high reading

Wed, 13 Feb 2013 21:50:47 EDT

dennismurphy posted :

said by nonymous:

said by AVD:

annon poster needs pics.

Of what?

The dmm.

Re: high reading

Wed, 13 Feb 2013 21:25:27 EDT

nonymous posted :

said by AVD:

annon poster needs pics.

Of what?

Re: high reading

Wed, 13 Feb 2013 16:58:03 EDT

cdru posted :

said by sap5885 :

Not having any problems with the light bulbs, will call in an electrician to be on the safe side. Thx

An electrician will charge you regardless if there is anything wrong. And if it's not on your side of your meter, all he's going to do is call the power company on your behalf.

The power company is obligated usually to at least check it out for free and repair anything that they are responsible for.

Re: high reading

Wed, 13 Feb 2013 15:27:25 EDT

anon posted : Not having any problems with the light bulbs, will call in an electrician to be on the safe side. Thx

Re: high reading

Wed, 13 Feb 2013 15:24:30 EDT

anon posted : Thx, will do.

Re: high reading

Wed, 13 Feb 2013 14:48:35 EDT

AVD posted : annon poster needs pics.

Re: high reading

Wed, 13 Feb 2013 14:44:04 EDT

pende_tim posted : at 154VAC, incandescent bulbs will have a life of several minutes and burn like a supernova until they fail.

Are you seeing this?

If so, you have a problem. If not, as others have said, check the meter setup.
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Re: high reading

Wed, 13 Feb 2013 14:25:45 EDT

lutful posted :

said by sap5885 :

My DMM is reading 154 volts all over the house.

Can you post a photo of the DMM reading 154V? Maybe it is setup improperly.

It is very unlikely that AC RMS voltage would be that high for prolonged periods and not be reported by a whole bunch of neighbors to the utility.

By the way, the "peak" value for perfect 120V AC sine wave is actually 172V. So if your DMM was showing peak value, 154V reading may even mean you have lower than normal AC voltage.

Re: high reading

Wed, 13 Feb 2013 14:24:42 EDT

leibold posted :

said by jack b:

I would unplug anything containing electronics, if it's not already too late.

Actually most electronics (those with switch-mode power supplies) are likely to be the least effected by this. Many of those devices will be rated for AC voltage from 90V to 250V which puts the 154V reading on the OP multimeter in the middle of the acceptable voltage range.

Electro-mechanical devices such as motors (as garys_2k already pointed out) are at a much bigger risk if that voltage is being confirmed.

For the OP, make sure that the DMM is set to measure AC voltage in RMS (root mean square) mode and not in Peak mode:

154Vpeak = 110Vrms
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Re: high reading

Wed, 13 Feb 2013 13:21:27 EDT

jack b posted : Call your power delivery co asap. It could be an open/failing neutral which can be hazardous.

I would unplug anything containing electronics, if it's not already too late.
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Re: high reading

Wed, 13 Feb 2013 12:28:26 EDT
garys_2k posted : All over the house, as in every outlet you've tested, then it's definitely a provider issue. Can you test line to line on a 240 volt outlet?

This could be dangerous, things like motors can overheat with the voltage that high. Call right away.

Re: high reading

Wed, 13 Feb 2013 12:27:31 EDT
cdru posted : Presuming your meter is correct, call the provider and tell them you have overvoltage.

high reading

Wed, 13 Feb 2013 11:56:14 EDT
anon posted : My DMM is reading 154 volts all over the house. I've had problems with a couple components, is this possibly the problem? If so do I hire an electrician or do I call the provider?