Leaving extra sheathed cable in receptacle box?
#1
03-10-14, 05:08 PM
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Leaving extra sheathed cable in receptacle box?
I'm running Romex 12/2 in my basement and using metal receptacles and junction boxes. I believe that code dictates that at least a 1/2" of sheathed wire enter the box to protect the individual wires. I was curious whether I can leave more than that? (if I can fit it). I have some difficult runs and would like to build in slack wherever possible. Is there any issue with that? Thank you
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#3
03-11-14, 07:46 AM
1. FIrst strip the sheath off to within 1/4" to 1/2" of where the cable would be clamped on at the back of the box. If you leave the sheathed cable in the box and then finish the wall, it is difficult to cut the sheath off later when you put the receptacle or other things in the box.
2. Don't curl up extra length of cable or conductors in the box in case the box needs to be relocated in the future. That takes up too much space in the box and it is hard to put the things you do want to use now in the box.
2. Don't curl up extra length of cable or conductors in the box in case the box needs to be relocated in the future. That takes up too much space in the box and it is hard to put the things you do want to use now in the box.
#7
03-11-14, 06:30 PM
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The reason I wanted to leave a little extra sheathed cable in the back of the box is because of issues I have had with existing outlets when changing receptacles. Sometimes wires were too short or dinged up and there wasn't enough slack to re-splice. I was going to leave about 2" of sheathed wire, and 6" of unsheathed wire. I did one receptacle like that prior to posting this, and I think it looks neat and not overcrowded. This was what I got out of the 2011 NEC:
The sheath of the nonmetallic-sheathed cable shall extend through the conduit or tubing and into the outlet or device box not less than 6 mm (1⁄4 in.). The cable shall be secured within 300 mm (12 in.) of the point where the cable enters the conduit or tubing. Metal conduit, tubing, and metal outlet boxes shall be connected to an equipment grounding conductor complying with the provisions of 250.86 and 250.148.
The sheath of the nonmetallic-sheathed cable shall extend through the conduit or tubing and into the outlet or device box not less than 6 mm (1⁄4 in.). The cable shall be secured within 300 mm (12 in.) of the point where the cable enters the conduit or tubing. Metal conduit, tubing, and metal outlet boxes shall be connected to an equipment grounding conductor complying with the provisions of 250.86 and 250.148.
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