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01-10-2013, 08:41 PM   #1
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## Solve this one

3-way switch

Switch in position 1:
Black traveler terminal = 62v
Red traveler terminal = 120v
White common terminal = 120v

Switch in position 2:
Black = 0v
Red = 120v
White = 0v

All values referenced against the bonding conductor. Haven't opened up the other 3-way switch or the lights. Lights and switches appear to be functioning normally.

Where does the 62v come from?

Last edited by jlmran; 01-10-2013 at 09:33 PM.

01-10-2013, 08:55 PM   #2
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Deleted

Last edited by jlmran; 01-10-2013 at 09:33 PM.

 01-10-2013, 09:09 PM #3 Member     Join Date: Apr 2011 Location: Almost Arkansas Posts: 2,764 Rewards Points: 2,000 Other than your voltages....what's the issue with the switches? __________________ Do you want it your way or the right way?

01-10-2013, 09:14 PM   #4
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Quote:
 Originally Posted by Missouri Bound Other than your voltages....what's the issue with the switches?
Unbonded while having metal covers. I learned of the voltages while verifying presence/absence of voltage. Unbonded status is now resolved. Why are you whistling?

 01-10-2013, 09:32 PM #5 Member   Join Date: Nov 2007 Location: Nashua, NH, USA Posts: 7,918 Rewards Points: 1,442 Red traveler is energized by the other switch. Position 1 -- This switch connects white common to energized red. Your meter is sensitive enough to pick up phantom voltage induced in isolated black from red juxtaposed in same cable, voltage relative to bonding conductor. Position 2 -- The switch connects white common to unenergized black traveler. Any phantom voltage is dissipated to neutral through load (light) at far end of white wire. Wire color usage is incorrect. The white wire should not be used to go from the switch to the load. In this case you would need to use the white wire as a traveler. __________________ The good conscientious technician or serviceperson will carry extra oils and lubricants in case the new pump did not come with oil or the oil was accidentally spilled, so the service call can be completed without an extra visit. Last edited by AllanJ; 01-10-2013 at 09:38 PM.
01-10-2013, 10:46 PM   #6
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Quote:
 Originally Posted by jlmran 3-way switch Switch in position 1: Black traveler terminal = 62v Red traveler terminal = 120v White common terminal = 120v Switch in position 2: Black = 0v Red = 120v White = 0v All values referenced against the bonding conductor. Haven't opened up the other 3-way switch or the lights. Lights and switches appear to be functioning normally. Where does the 62v come from?
Phantom voltage caused by close proximity to energised conductors !
Put a test lamp on it and I bet it goes away !

01-10-2013, 11:06 PM   #7
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Agree with the above. No problem with the voltages. The switch is working properly. The 62 volts is phantom and not important.

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