Conduit Fill

[jimthesparks]

If I have a three conductor cable would I have to use the 53% or 40% conduit fill?

 

[infinity]

Good question, I would say 53% as if it were one conductor. Chapter 9 notes to table:

(9) A multiconductor cable or flexible cord of two or more conductors shall be treated as a single conductor for calculating percentage conduit fill area. For cables that have elliptical cross sections, the cross-sectional area calculation shall be based on using the major diameter of the ellipse as a circle diameter.

 

[jimthesparks]

Thanks I was going through Chapter 9 in the handbook and must of skipped over it several times. :slaphead: