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Old 05-16-2019, 12:46 PM   #1
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Can I tap into this romex?


I have replaced outlets, switches, fixtures, but have not added anything to existing romex.


I would like to mount a tv to the wall. Stud finder showed no studs, so I opened the wall and added some. I noticed the romex and I thought before I drywall I should look into adding an outlet right behind where the tv will be.


Can I add an electrical box, cut the romex, connect to a new outlet and by using wire nuts, reconnect the cut romex? Do I have to have a separate junction box for the wire nut connection?
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Old 05-16-2019, 12:51 PM   #2
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Re: Can I tap into this romex?


Do you know what it is for or where it goes.
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Old 05-16-2019, 12:59 PM   #3
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Re: Can I tap into this romex?


Trial and error is the only way I know to find out what it is. There is an outlet to the left and right, close to the ground.
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Old 05-16-2019, 01:03 PM   #4
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Re: Can I tap into this romex?


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Trial and error is the only way I know to find out what it is. There is an outlet to the left and right, close to the ground.
Not sure how you will prove it before you cut it but the wire will be too short so you might need a new wire from the next outlet to the new outlet.
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Old 05-16-2019, 01:20 PM   #5
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Re: Can I tap into this romex?


Can't prove anything until I cut. If I do cut, to hook it back up I would use wire nuts and place this in a junction box, correct? From that wire nut connection inside the junction box I can attach more romex and connect to the outlet?
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Old 05-16-2019, 01:25 PM   #6
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Re: Can I tap into this romex?


I gave the romex a good tug and determined it is connected to at least the outlet on the right side.
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Old 05-16-2019, 01:25 PM   #7
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Re: Can I tap into this romex?


If you cut that romex you won't have enough slack to make a code compliant joint. To add an outlet here, install box and run new romex to the nearest outlet. Might require some sheetrock damage but you're already engaged in sheetrock repair here so no big deal.
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Old 05-16-2019, 01:29 PM   #8
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Re: Can I tap into this romex?


Yes you can do that but donít bury the junction box in the wall. That splice will need to be accessible. Once you cut the romex, it will be too short to splice unless thereís enough slack to make a splice.


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Old 05-16-2019, 01:31 PM   #9
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Re: Can I tap into this romex?


Any junction box you install must be accessible.

You cannot put in a junction box and bury it behind drywall.
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Old 05-16-2019, 01:36 PM   #10
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Re: Can I tap into this romex?


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Can't prove anything until I cut. If I do cut, to hook it back up I would use wire nuts and place this in a junction box, correct? From that wire nut connection inside the junction box I can attach more romex and connect to the outlet?
You would install 2 outlet boxes with a new wire between them, you could have 2 outlets or just put a black cover on one of them. You want 6" of wire in each box.
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Old 05-16-2019, 01:36 PM   #11
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Re: Can I tap into this romex?


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Originally Posted by LawnGuyLandSparky View Post
If you cut that romex you won't have enough slack to make a code compliant joint. To add an outlet here, install box and run new romex to the nearest outlet. Might require some sheetrock damage but you're already engaged in sheetrock repair here so no big deal.

Okay, thanks.



Just to confirm, cut drywall from outlet to where I want a new outlet, drill holes through studs, feed new romex and wire it up?
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Old 05-16-2019, 01:37 PM   #12
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Any junction box must be accessible after sheetrocking. You can add an additional plug where one of the wires will reach after cutting it, then run a new wire to the tv plug and on to the other existing plug ( by cutting more sheetrock or adding another plug).
Get a non-contact tester to verify the wire is off before cutting it.
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Old 05-16-2019, 01:37 PM   #13
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Re: Can I tap into this romex?


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You would install 2 outlet boxes with a new wire between them, you could have 2 outlets or just put a black cover on one of them. You want 6" of wire in each box.

Nealtw, you're always helping out, thank you.
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Old 05-16-2019, 01:44 PM   #14
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Re: Can I tap into this romex?


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Any junction box you install must be accessible.

You cannot put in a junction box and bury it behind drywall.

This is good to know, thank you.
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Old 05-16-2019, 04:12 PM   #15
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Re: Can I tap into this romex?


Since you're going to the trouble, install a recessed receptacle intended for wall-hung TVs. You might even consider ones with audio connections and rough the wiring in while you have that wall open.
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