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-   -   NM cable 3-wire to 2-wire? (http://www.houserepairtalk.com/f9/nm-cable-3-wire-2-wire-16066/)

suobs 06-02-2013 06:51 AM

NM cable 3-wire to 2-wire?
 
Am I allowed to use 3-wire (plus ground = 4 wires) NM cable for a connection that only needs 2 conductors (+ ground = 3 wires)? If so, how do I flag the wire that's not being used? Can I just put a screw-on splice cap over it at both ends?

kok328 06-02-2013 07:01 AM

how do I flag the wire that's not being used? No flag for unused conductors.
Can I just put a screw-on splice cap over it at both ends? Yes

JoeD 06-02-2013 07:03 PM

Leave it long in the back of the box at both ends and cap it. Do not cut it off as yo might find a need for it in the future.


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