Pull Box Less than 4 awg

[euclid43]

I am pulling (12) #12 NM throug 2" rigid PVC 24" in length. Is there a requirment that I install a pull box bigger than 8" x 8" x 4"? These conductors are not larger than 6 AWG.

 

[petersonra]

I don't think there is any general requirement to install a pull box at all. certain not on a 24 inch long piece of PVC.

 

[raider1]

For conductors smaller than #4 a junction/pull box is sized per 314.16 based on a volume calculation.

Chris

 

[infinity]

I am pulling (12) #12 NM throug 2" rigid PVC 24" in length. Is there a requirment that I install a pull box bigger than 8" x 8" x 4"? These conductors are not larger than 6 AWG.

Removed to lessen confusion, see post #6

 

[augie47]

There may be another problem hiding in the details. Does your conduit originate at a panel ?
If so, can you describe the install (surface, flush, etc)

 

[infinity]

There may be another problem hiding in the details. Does your conduit originate at a panel ?
If so, can you describe the install (surface, flush, etc)

WOW, I missed the part about NM cable. :ashamed:

 

[euclid43]

It's a surface mount outside. Yes, NM will be spliced into a j-box.

 

[Ponchik]

It's a surface mount outside. Yes, NM will be spliced into a j-box.

NM cable is not rated for wet location.

On a second note, You have 12 NM cable coming from the panel and I assume probably 12 more from the inside
of the house to be spliced together in that j box. Your box has to be at least 110.25 cu" to accommodate 49 CCC.

 

[augie47]

I agree with Edward.
Use THWN instead of NM, but that will require a splice and the 110.25 cu in box.
You could see if your AHJ would allow the NM and avoid the splice.
( 312.5(C) is also a good reference for similar installations.)