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  1. #1
    Join Date
    Jul 2014
    Posts
    5

    Default NM Wire Strength

    How stong is NM wire (romex type)? I had an electrican in and he was pulling and pulling on the wire (even with vice grip pliers) to get a few more inches out. This seems like it could damage the wire or pull it loose from somewhere else. Thoughts? Am I over worried that this could cause damage and become a fire hazard or something?

    Thanks.

  2. #2
    Join Date
    Dec 2010
    Location
    Houston Texas
    Posts
    2,969

    Default Re: NM Wire Strength

    The wire won't fail but the casing might. Then you have the wire coating.

    While yanking excessively isn't good, you might be surprised how much a wire can take.

  3. #3
    Join Date
    Jul 2010
    Location
    SoCal
    Posts
    6,736

    Default Re: NM Wire Strength

    I wouldn't worry about that.

    The copper in romax is solid. You can pull on it all day long and it's still in the same shape.

  4. #4
    Join Date
    Jan 2011
    Location
    Columbiana, Alabama
    Posts
    738

    Default Re: NM Wire Strength

    If the electrician is still around ask him to Megger it.

    At strart-up if the AFCI trips...I'd look there first.
    Good Luck from Columbiana, Alabama
    Maurice Turgeon, Hidden Content

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