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Tech => Tech Help => Topic started by: JeremyConnors on August 09, 2016, 03:16:47 AM

Title: Voltage Test: Fluctuating voltage and ground..? *Requesting verification*
Post by: JeremyConnors on August 09, 2016, 03:16:47 AM

In an effort to get it right the 1st time, I'm humbly putting my lack of electric knowledge out there. Yes, I have Harley Davidson product background, lol. Step One: A little guidance w/ ABC's here...

Please see below vid of me attempting an outlet voltage test. The last time I stuck anything in an outlet, other than a standard plug, was to short the lights in my 8th grade chemistry class w/ a bubble gum wrapper (Only sent sparks flying.)

https://youtu.be/3YdmxYzXL2c (https://youtu.be/3YdmxYzXL2c)

Title: Re: Voltage Test: Fluctuating voltage and ground..? *Requesting verification*
Post by: protomech on August 09, 2016, 06:44:20 AM

1st there will be a little bit of fluctuation in the line. 119.6 - 120.0 V is about a 0.3% variation.

2nd multimeter probes don't make great contact with 120V socket holes. IMO.

At about 0:40 you had pretty decent contact with the socket. Before then I think the contact was intermittent.

Title: Re: Voltage Test: Fluctuating voltage and ground..? *Requesting verification*
Post by: JeremyConnors on August 09, 2016, 07:31:55 AM

Quote from: protomech on August 09, 2016, 06:44:20 AM

1st there will be a little bit of fluctuation in the line. 119.6 - 120.0 V is about a 0.3% variation.

2nd multimeter probes don't make great contact with 120V socket holes. IMO.

At about 0:40 you had pretty decent contact with the socket. Before then I think the contact was intermittent.

Thanks P, so this outlet checks out?
I get the bit about variation, was mostly worried about the rapid fluctuation...
And maybe the probes don't contact well enough to prove grounds..?