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Homeowner Forum / Construction / January 2005



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Ceiling Wiring: Drill or Staple?

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Jeff Givens - 30 Jan 2005 19:33 GMT
Existing finished basement, I need to pull some more wires. Since I have an
installed drop ceiling does NEC allow me to simply attach the newly pulled
wires to the bottom of the joists or must I again (as I did when
constructing) drill x # of inches from the joist edge?
_________________________________________________________________
JG...                                                 Jeff Givens
        mailto:jgivensXX@comcastXX.netXX

"My hovercraft is full of eels."
Phil Scott - 30 Jan 2005 19:41 GMT
> Existing finished basement, I need to pull some more wires. Since I have an
> installed drop ceiling does NEC allow me to simply attach the newly pulled
> wires to the bottom of the joists or must I again (as I did when
> constructing) drill x # of inches from the joist edge?

Its a closed, non occupied protected space in a building under
3 stories, so you can staple.   Use insulated staples to you
dont damage the wire.

Over 3 floors the entire thing must be in conduit...  you only
have to drill the studs when you are inside a wall.

Phil Scott

______________________________________________________________
___
> JG...                                                 Jeff Givens
>          mailto:jgivensXX@comcastXX.netXX
>
> "My hovercraft is full of eels."
Jeff Givens - 30 Jan 2005 20:22 GMT
>Over 3 floors the entire thing must be in conduit...  you only
>have to drill the studs when you are inside a wall.

I was wondering if a drop ceiling is still considered "open space" and thus
no stapling allowed.
_________________________________________________________________
JG...                                                 Jeff Givens
        mailto:jgivensXX@comcastXX.netXX

"My hovercraft is full of eels."
BP - 30 Jan 2005 22:07 GMT
>>Over 3 floors the entire thing must be in conduit...  you only
>>have to drill the studs when you are inside a wall.

I was wondering if a drop ceiling is still considered "open space"

No
_________________________________________________________________
Phil Scott - 31 Jan 2005 00:16 GMT
> >Over 3 floors the entire thing must be in conduit...  you only
> >have to drill the studs when you are inside a wall.
>
> I was wondering if a drop ceiling is still considered "open space" and thus
> no stapling allowed.

That is a local issue...depends on what your building
inspector thinks when he looks at  the job... there are
variables...does he think the drop ceiling could be temporary?
etc.  Worst case you would have to run it in steel flex
conduit...bx...thats with the wire already in it...not much of
a problem at all.

Phil Scott

______________________________________________________________
___
> JG...                                                 Jeff Givens
>          mailto:jgivensXX@comcastXX.netXX
>
> "My hovercraft is full of eels."
Roger Shoaf - 31 Jan 2005 05:19 GMT
You can attach them to the joists if your wire run is with the joists, but
if the cable crosses the joists, you need to have it between a couple of
1X2's.

Signature

Roger Shoaf

About the time I had mastered getting the toothpaste back in the tube, then
they come up with this striped stuff.

> Existing finished basement, I need to pull some more wires. Since I have an
> installed drop ceiling does NEC allow me to simply attach the newly pulled
[quoted text clipped - 5 lines]
>
> "My hovercraft is full of eels."
 
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