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Old 07-06-2009, 12:23 PM   #1
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Are voltage testers safe?


I would assume so but I feel weird touching a little tool to a live electrical line. Most of the time it's off and I'm using to verify that but the times it's on a different circuit then I thought(thank god for the tool) I touch a live line. I'm assuming since the tool is all plastic it's fine but would I be fine using this in the panel to check the power too? Is there a max these tools can safely handle?

The one I'm using is:
http://www.amazon.com/Fluke-1AC-A1-I...6900844&sr=8-1

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Old 07-06-2009, 12:26 PM   #2
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Are voltage testers safe?


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I would assume so but I feel weird touching a little tool to a live electrical line. Most of the time it's off and I'm using to verify that but the times it's on a different circuit then I thought(thank god for the tool) I touch a live line. I'm assuming since the tool is all plastic it's fine but would I be fine using this in the panel to check the power too? Is there a max these tools can safely handle?

The one I'm using is:
http://www.amazon.com/Fluke-1AC-A1-I...6900844&sr=8-1
If it says CAT III your are good.

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Old 07-06-2009, 12:35 PM   #3
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Are voltage testers safe?


i have done 480 with them. you should be good with anything around your house. they will lie to you sometimes
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Old 07-06-2009, 12:42 PM   #4
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Are voltage testers safe?


They can give you false readings. Best tester for the money would be a wiggy Solenoid type tester. Non-Contact Voltage Testers have shocked me more than once.http://www.grainger.com/1/1/63069-wi...-iii-600v.html
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Old 07-06-2009, 01:46 PM   #5
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Are voltage testers safe?


Plus the Wiggy doesn't respond to phantom voltages. Troubleshooting is hard enough without chasing ghosts.
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Old 07-06-2009, 01:48 PM   #6
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Are voltage testers safe?


...But it gives false positives and not false negatives right?! I can live with false positives...not so much with false negatives.
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Old 07-06-2009, 03:09 PM   #7
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Are voltage testers safe?


No false negatives for liability reasons and you'll get tired of false positives soon enough.

An incand. bulb across the leads of a voltmeter is pretty good but it will trip an upstream GFCI if you measure between hot and ground. So might a Wiggy.
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Old 07-06-2009, 03:15 PM   #8
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Are voltage testers safe?


duplicate
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Old 07-06-2009, 03:16 PM   #9
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...But it gives false positives and not false negatives right?! I can live with false positives...not so much with false negatives.
Depends on the state of the battery, and the condition the contacts to the battery are in. Sometimes, especially on the Greenlee tester, you will turn the thing on, but it isn't really on, because of corrosion on the battery, and it won't read. For this reason, you either test it on a known hot, or rub it on your shirt or hair, because the static will cause it to chirp if it is working.
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Old 07-06-2009, 03:34 PM   #10
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Sometimes, especially on the Greenlee tester, you will turn the thing on, but it isn't really on, because of corrosion on the battery, and it won't read. For this reason, you either test it on a known hot, or rub it on your shirt or hair, because the static will cause it to chirp if it is working.
I like Learning The Hard Way(First and Last time i trusted a Non-Contact Voltage Tester )
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Old 07-06-2009, 03:42 PM   #11
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I like Learning The Hard Way(First and Last time i trusted a Non-Contact Voltage Tester )
Wasn't that spectacular?

I guess they don't care about liability. . .
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Old 07-06-2009, 03:49 PM   #12
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Wasn't that spectacular?
Yes and loud!! And still didn't trip the Breaker (Federal Pacific)
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Old 07-06-2009, 03:58 PM   #13
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If you think about, that was one of the easier ways to learn. It only cost you a $35 pair of cutters. Could have been worse.
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Old 07-06-2009, 05:33 PM   #14
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I melted off the tip of a pair of needle nose pliers once. BANG! sounded like a 22 being shot off next to my ear. Yeah, I learned to double and triple check.
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Old 07-06-2009, 06:53 PM   #15
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Are voltage testers safe?


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If you think about, that was one of the easier ways to learn. It only cost you a $35 pair of cutters. Could have been worse.
Better yet, it almost looks like it turned the cutters into a serviceable wire stripper, even Steven.

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