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Adding outlet to existing wall

Posted by rockinar (My Page) on
Mon, Nov 11, 13 at 0:10

I want to add an outlet up a wall about 5' above an existing one. I know code for new construction requires staples with 8-12" from the box and stapled to the center of the studs every 4 feet I think.

What about existing walls? I can't find any information. My guess is these rules don't apply? You just fish the wire and be done with it?

Follow-Up Postings:

RE: Adding outlet to existing wall

"...You just fish the wire and be done with it?"

Correct. There's no chance of pinching the wire between the wallboard and stud if the wallboard is already up.

This post was edited by glennsparky on Mon, Nov 11, 13 at 4:34

RE: Adding outlet to existing wall

The plastic old work box you install has a plastic retainer piece that holds the wire as it enters the box. In most cases that is all that is needed as long as you are running the wire vertically up between the studs to an outlet higher in the wall.


RE: Adding outlet to existing wall

From the 2008 NEC

334.30(B)(1) - NM cable is permitted to be unsupported where the cable is fished between access points through concealed spaces in finished buildings or structures and supporting is impracticable.

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