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Thread: Class 2 Wire and Pipe Fill

  1. #1
    Join Date
    Aug 2012
    Location
    Thief River Falls, MN USA
    Posts
    1

    Class 2 Wire and Pipe Fill

    How many class 2 wires can be installed in a 1 inch emt pipe?? Using 18/2 and 18/3 t-stat wire.

  2. #2
    Join Date
    Dec 2006
    Location
    Chapel Hill, NC
    Posts
    26,582
    I believe I would try and find the actual dimensions of the cable itself. You may be able to look it up online or contact the manufacturer. Then using Chapter 9 tables you can figure it out. I am not sure those conductors are included in this table but that is what I would use.

  3. #3
    Join Date
    Sep 2011
    Location
    ct
    Posts
    41
    Conduit fill does not apply, nor does any chart, other than cross section, in the NEC.

    There's basic items that can be figured via circular mils and similar.

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