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What things am I a dumbass about?
(lemmy.nz)
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this post was submitted on 29 Feb 2024
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Always use a one lead voltage ~~meter~~ tester when working on electricity. Don't trust your breakers. Don't trust light switches.
Are you talking about the meters that simply detect whether wires are still live or not? Definitely a good backup to double check that you've shut off the right breaker.
If you're talking about a single lead multimeter to measure voltage, I've never heard of such a thing and don't know how that would even work.
This one can detect voltage with a single lead and also works as a voltage meter if you use two leads: https://www.benning.de/products-en/testing-measuring-and-safety-equipment/test-equipment-voltage-tester/voltage-tester-duspol.html
It also has an inbuilt motor to distinguish leaking voltage from continuous AC.
Sorry if I didn't use the correct English terms and that wasn't clear enough.
In Germany you simply call it a Duspol and every electrician knows what you mean. Didn't research enough into the English description but it seems it's a two pole voltage tester with one pole voltage detection mode.
There's literally no such thing as a one-lead voltage meter. Voltage is, by definition, the difference in potential energy between two points.
Any tool that can give a voltage reading with one probe has a second probe you're not considering, or is estimating voltage based on a some assumptions about current or some other factor being measured.
They kinda work as anti-death sticks for me.
'Electrical safety' for this one I think?
Always assume it's live..
Exactly. Works for guns as well.
Sure. Also invisible electricity in general. If you can see it it's many times not a good thing.