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Thread: what is the largest solid wire

  1. #1
    Join Date
    Apr 2010
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    tampa, Florida
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    1

    what is the largest solid wire

    what is the largest solid (nonstranded) conductor listed in the wire tables?

  2. #2
    Join Date
    Jan 2009
    Location
    Easton, Maryland NEC: 2011
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    8,068
    #4 solid copper is the largest I have used.

    Table 8 of Chapter 9 shows #8 as the largest listed, perhaps because 310.3 limits solid wire to #10 if installed in conduit.

    MI cable is another possibility; however, I have never installed any, so I do not know.

    You could search manufacturers like Southwire if you need to know.
    "Electricity is really just organized lightning." George Carlin


    Derék

  3. #3
    Join Date
    Mar 2008
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    Michigan. It's a beautiful penninsula, I've looked around.
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    5,952
    I have run #2 SBTC (solid bare tinned copper) for grounding. Anything larger would likely be considered rod, not wire.
    Cheers and Stay Safe,

    Marky the Sparky

  4. #4
    Join Date
    May 2005
    Location
    Richmond, Virginia
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    21,838
    Quote Originally Posted by K8MHZ View Post
    I have run #2 SBTC (solid bare tinned copper) for grounding.
    As have I, at a cellular site. That stuff Cad-welds well.
    Code references based on 2005 NEC
    Larry B. Fine
    Master Electrician
    Electrical Contractor
    Richmond, VA

  5. #5
    Join Date
    Mar 2004
    Posts
    590
    No. 1/0 solid aluminum is sometimes used in 15 kV URD cable.

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