How to splice a 14-3 NM-B 600 volt cable

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Old 01-16-08, 04:29 PM
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Question How to splice a 14-3 NM-B 600 volt cable

Well, leave it to me. I neatly sliced through a 14-3 W/G Cirtex cable in my attic that is/was connected to my ceiling fans and their lights. There is no slack to pull the two ends together. What is the suggested way for making a splice between the two ends (red, black, white and copper wires) and not having to string all new cable - because I can't! Thanks very much. -Stu
 
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Old 01-16-08, 04:40 PM
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You will have to install 2 junction boxes and use a new piece of cable that will reach to each of the boxes (plus at least 6 inches per end) and cut the existing cable and insert it into the j-boxes. Then make your joints in the junction boxes.

Be sure to use approved entrance fittings in the boxes and place a cover on the boxes when finished.
 
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Old 01-16-08, 04:47 PM
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Thanks, Nap. That makes perfect sense to me. I'll have to come up with the right style junction boxes at the store (I'm sort of new at this level of electrical work - mine has been mostly speaker wires and some Romex) and find some identical 14-3 W/G cable that isn't on a 100' roll!
 
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Old 01-16-08, 04:49 PM
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You may find it easier to install one junction box and replace the section of cable from the ceiling fan/light to the junction box.
 
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Old 01-16-08, 05:53 PM
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I sure wouldn't want to take down a paddle fan when I could make all the splices in a junction box.
 
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Old 01-16-08, 06:41 PM
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There are two ceiling fans/light combos and to re-do the cabling from the fans to a single attic junction box would involve tearing out some flooring in the attic, etc. The dual junction box is a better solution in my situation.
 
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Old 01-17-08, 07:17 AM
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You said flooring. That brings up another point. You can NOT put the new junction boxes under the flooring. They must remain accessible with covers on the junction boxes.
 
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Old 01-17-08, 08:44 AM
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I plan to put the junction boxes above the flooring, in full sight, attached to some joists.

Which brings up another question: when making the joints in the junction boxes, is there a better way than trying to twist pairs of 14 gauge wire together, especially the copper ground, into wire connectors or even winged wire connectors?
 
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Old 01-17-08, 08:58 AM
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Correctly putting on a wire nut takes some practice, but is not that difficult once you get the hang of it. make sure that you have the proper sized wire nut and practice once or twice on some scrap wire out in the open if you need to.

Wire nuts are the proper way to make the connections you need need to make.
 
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Old 01-17-08, 09:08 AM
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Thanks. I believe I have the proper-sized winged connectors. It says they can be used for up to 3 #14's.
 
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Old 01-17-08, 09:14 AM
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Those are correct then.

Don;t forget that if you are uising metal junction boxes to add a pigtail to the ground splice and attach to the metal box. If using plastic boxes then they don't get grounded.
 
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Old 01-17-08, 09:20 AM
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Plastic is the way I'm going. Thanks.
 
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Old 01-17-08, 05:43 PM
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Could try these:
http://www.idealindustries.com/produ...in/in-sure.jsp

http://www.idealindustries.com/media...ct/in-sure.jpg

Can get at big box stores; make sure you get ones that are for 14 gauge wire.
 
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Old 01-17-08, 06:07 PM
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That's very interesting but I'm not sure what I'm looking at. For example, in junction box A, I need to join red, black, white and ground from the left cut wire with red, black, white and ground that leads to junction box B. So are you saying that with these gadgets I should get the 4-port model and just shove the matching pairs of wires in the ports? Then do likewise with junction box B and the cut wire from the right side? Sorry to appear so dumb on this one.
 
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Old 01-17-08, 07:36 PM
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These are just as bad as back stab connections. Do not consider them.
 
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Old 01-17-08, 08:15 PM
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Thumbs up

'Nuff said. I'll go with my winged connectors. Thanks.
 
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Old 01-18-08, 08:17 AM
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Originally Posted by racraft View Post
These are just as bad as back stab connections. Do not consider them.
Bob,

Do you have any data to back this up?
 
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Old 01-18-08, 03:40 PM
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Thanks to everyone's good advice, I completed the project today. All splices work, two plastic junction boxes (with covers), winged wire connectors - turn the breaker back on and - voila! Lights and fans!
 
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