[Shop-talk] Will a popped circuit breaker ground the hot wire?

Brian Kemp bk13 at earthlink.net
Sun Apr 17 15:36:35 MDT 2016


Jim - Is there anything in the circuit that might be creating the path 
to ground?  Maybe you are getting continuity through an incandescent 
light bulb.

I would test the switch out of the circuit.  There should never be 
continuity between either of the hot wire screws of the switch and the 
ground screw.

If you look closely at the switch, you will probably see the word "TOP" 
stamped on the metal frame of the switch.

Brian

On 4/17/2016 11:50 AM, Jim Franklin wrote:
> I'm adding some wiring to a circuit, and while testing the new Decora switch to see which way was up, I noticed there was conductivity between the hot lead and the grounded electrical box. Is this how it should be with the circuit breaker off? Googling this seemingly simple question gets me answers to all kinds of other questions :-\
>
> I undid all the connectors back to the origin of my work, so it isn't anything new unless I pierced a wire in the wall with a sheetrock screw...
>
> (There's also conductivity between the hot & neutral, which I expected given the ground-neutral bonding in the main panel)
>
> thanks,
> jim
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