DIYbanter - View Single Post - EMT electrical conduit -- how many NM wires?

Doug Miller[_4_]

wrote in news:509607f9-50bb-4b4c-9ad7-
:

On Friday, July 12, 2013 5:20:47 PM UTC-7, Doug Miller wrote:
wrote in
:
On Friday, July 12, 2013 2:15:55 PM UTC-7, Doug Miller wrote:
wrote in
news:64bcf2b4-d88f-4d98-8daf-383a8784b898
@googlegroups.com:

You can't have any NM cable inside a conduit.
It has to be single conductors.

Absolute nonsense. NM cable is permitted inside conduit in any
location where NM is permitted without conduit.

NEC Note 9 in the Chapter 9 tables says

"A multi conductor cable of two or more conductors shall be
treated as a single conductor for calculating percentage fill
area. For cables that have elliptical cross section, the cross
section area calculation shall be based on using the major
diameter of the ellipse as a circle diameter".

How on earth did you manage to read that as prohibiting NM inside conduit ?

It exceeds 53% of the area for Â½€ conduit.

All that proves is that _that_particular_combination_ can't be run in _that_particular_size_ of
conduit.

You made the blanket claim that "You can't have any NM cable inside a conduit" -- which is
complete and utter nonsense.