Search the forums

Loading

Seeing very low voltage on a "dead" circuit - issue?

SwissCarpenter's picture

I opening up a wall I came across a conductor which I thought was an inactive circuit that appears to be carrying some voltage.  Here's the detail:  The conductor is a piece of 1950's vintage 14/3 romex.  When I ran my non-contact meter over it, it registered as a live circuit. When i checked it with my multimeter the hot, hot, and neutral each read somewhere between 0.3 and 1.2v to ground (the voltage seemed to fluctuate constantly and never arrived at a steady number). The conductor routes into a joist bay shared with a number of other live circuits and crosses over them at one point.  Is the curent that I'm seeing "phantom" voltage from the other conductors or do i need to be concerned?

It's phantom voltage.  It's (post #207104, reply #1 of 1)

It's phantom voltage.  It's not unusual to see 50V or more, if you use an electronic meter.


Of all the preposterous assumptions of humanity over humanity, nothing exceeds most of the criticisms made on the habits of the poor by the well-housed, well-warmed, and well-fed.  --Herman Melville