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-   -   even turn off breaker, still show 12 V is this normal (http://www.diychatroom.com/f18/even-turn-off-breaker-still-show-12-v-normal-2698/)

KUIPORNG 06-07-2006 03:55 PM

even turn off breaker, still show 12 V is this normal
 
Hi everyone,

I turn off the breaker for a circuit I am working on, the hot wire still show there is 12V, although this is insignificant, just want to know from expert out there, is this normal?

Thank You

Speedy Petey 06-07-2006 04:05 PM

Are you using a digital multi-meter (DMM)?
It's probably phantom voltage.

jwhite 06-07-2006 04:49 PM

I get a higher reading from 100 foot of wire run underground before I have hooked it to anything on either end.

The DVM is giving you a voltage reading that is not capable of sustaining amps. Phantom voltage, or as we call it A GHOST.

Sparky Joe 06-07-2006 11:12 PM

maybe transients?

KUIPORNG 06-08-2006 02:12 PM

Thanks for the info, For Speedy Petey, I used those lcd displayed little tester for voltage...

Littlefatdog 06-13-2006 11:32 PM

did you try turning off all the other breakers as well?

KUIPORNG 06-14-2006 09:04 AM

No I didn't
 
No I didn't turn off all other breakers,... I just turn off the one I need to work on...

justtired 06-18-2006 02:42 AM

i don't know what are you working on. usually when i test voltage, if there are no voltage the digits changes, but if you have a voltage it should stay, for example you have 12v it should read 11. something to 12. something. if you're sure it is 12v try use a car light bulb or 12v power tester. 12v won't kill you, but it is safe to have it turned off.


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