[christrician]

40 volts to switched outlets with the switch off... 120 when switch is on.. what the heck!!!

Any ideas?

 

[FrunkSlammer]

Where and what are you measuring 40V off and 120V on?

And did you find that by accident or was there a reason you were looking?

 

[christrician]

Where and what are you measuring 40V off and 120V on?

And did you find that by accident or was there a reason you were looking?

Testing out units after finish for punch list stuff.

Stuck my meter in outlets instead of my outlet tester.

Top outlet is switched, tab is broken and nothing is shorting out. 40 volts even when switch is off. So weird

120 to bottom(constant hot)

120 to top when switch is on.

 

[dallas1scholar]

Double check the switch leg. Check continuity of the switch as well. Shut off breaker and see if you still have the same voltage. Just a couple ideas.

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[someonespecial]

Did the outlet tester illuminate?

 

[FrunkSlammer]

To me it's a non issue.. probably some induced voltage on the conductor. If it could move a wiggy or light up a bulb, I'd be trying to figure it out.

Is this a high rise with conductors all together in conduit?

 

[christrician]

Double check the switch leg. Check continuity of the switch as well. Shut off breaker and see if you still have the same voltage. Just a couple ideas.

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Check and check..

 

[christrician]

To me it's a non issue.. probably some induced voltage on the conductor. If it could move a wiggy or light up a bulb, I'd be trying to figure it out.

Is this a high rise with conductors all together in conduit?

That's what I figured. But it still weirded me out.

 

[duque00]

40v to what?

H-N?
H-G?
N-G?

 

[christrician]

40v to what?

H-N?
H-G?
N-G?

Hn 120
Hg 120
Ng 5

Sl to n 40
Sl to g 40

 

[Dolson226]

40 volts to switched outlets with the switch off... 120 when switch is on.. what the heck!!! Any ideas?

Illuminated switch?

 

[duque00]

Did you check the continuity of the switch.

Shared neutral?

 

[dallas1scholar]

What else is on that particular circuit?

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[dmxtothemax]

40 volts to switched outlets with the switch off... 120 when switch is on.. What the heck!!!

Any ideas?

yes !

View attachment 34204

 

[pjg]

Are using the flat 14/3 romex. there was an apartment building locally that had the same issue. AHJ had a big problem with it but finally the consensus was that is was induction as I recall.

 

[Awg-Dawg]

Use a wiggie, or put a load on it and see what it reads.

 

[Chrisibew440]

Did you check the continuity of the switch.

Shared neutral?

What if the neutral is shared? It's in parallel. Your not supposed to have potential unless you get in between the neutral.

 

[christrician]

Are using the flat 14/3 romex. there was an apartment building locally that had the same issue. AHJ had a big problem with it but finally the consensus was that is was induction as I recall.

Ding ding ding

 

[don_resqcapt19]

Exactly what did you read the voltage with? Take a look at this Fluke document.

 

[Big John]

Induced because the switched conductor shares the same cable as the constant hot.

Also common to see on the dead traveler of a 3-way.

Use a wiggy and I bet it goes away.