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Old 08-24-2012, 01:52 PM   #1
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Unused conductor termination in j-box


When a conductor of a cable (i.e. NM-B 14/3) is not used and is not connected to anything on either end of the cable segment (but wanting to keep it there in case it needs to be used in the future), what is the proper way to "terminate" it loose in the j-box? Snip any exposed copper and coil or tuck it away in the back? And/or does a small wire nut or tape wrap need to be put on the end? Should or can the unused conductor even be used like a wire tie to loop around its "sibling" conductors to keep things more organized?

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Old 08-24-2012, 02:06 PM   #2
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Unused conductor termination in j-box


Wire nut normally and just tuck in the box.

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Old 08-24-2012, 04:18 PM   #3
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Unused conductor termination in j-box


put a wirenut over the unused wire and tuck in the box. Anywhere is fine. If you want to wrap it around it's brothers and sisters than that is fine also.
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Old 08-24-2012, 07:19 PM   #4
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Unused conductor termination in j-box


So a wire nut is still required even though any exposed copper has been trimmed off?
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Old 08-24-2012, 07:28 PM   #5
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Unused conductor termination in j-box


Just an additional safety measure should the conductor somehow get energized.
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Old 08-24-2012, 08:48 PM   #6
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Unused conductor termination in j-box


When I open a junction box and see a random wire that is not terminated and has no wire nut, I start to think, "where does that damn wire go???" and I waste time figuring out that it's just a spare.

And as stated, safety in case it becomes energized for some reason.

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