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Thread: #8 vs #6 RV Outlet

  1. #1
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    #8 vs #6 RV Outlet

    I'm installing a 50 amp RV outlet on a power panel. The charts indicate you can use #8 for 50 amp but my co-worker is saying I need #6. The length of wire is less than 5 feet. Comments please.

  2. #2
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    Not enough information.

    What 'chart'? And what type of wire/cable?

  3. #3
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    Quote Originally Posted by TXLAKE View Post
    I'm installing a 50 amp RV outlet on a power panel. The charts indicate you can use #8 for 50 amp but my co-worker is saying I need #6. The length of wire is less than 5 feet. Comments please.
    If the lugs you're connecting to are rated for 75 degrees #8 is good for 50 amps I think, don't have my book in front of me.....
    and as 480 asked what type of wire?
    Sometimes I don't know whether I'm the boxer or the bag.

  4. #4
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    I doubt that the RV outlet has 75° C terminals so your #8 is NG unless you want to pigtail the #8's to #6's at the outlet.
    Rob

    Moderator

    All responses based on the 2014 NEC unless otherwise noted

  5. #5
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    Upon further reflection:

    5 feet? Install 6 and call it a day. How much more would it cost?

  6. #6
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    Use aluminum #6.

  7. #7
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    Quote Originally Posted by KaBoom! View Post
    Use aluminum #6.
    Only good for 40 amp at 60° C.
    Rob

    Moderator

    All responses based on the 2014 NEC unless otherwise noted

  8. #8
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    Quote Originally Posted by infinity View Post
    I doubt that the RV outlet has 75° C terminals so your #8 is NG unless you want to pigtail the #8's to #6's at the outlet.
    Quote Originally Posted by infinity View Post
    Only good for 40 amp at 60° C.
    In 20 years I have never seen this flagged. Millions of range and RV outlets are done this way, etc.

  9. #9
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    Quote Originally Posted by KaBoom! View Post
    In 20 years I have never seen this flagged. Millions of range and RV outlets are done this way, etc.
    It's fine if the terminals are rated for 75° C. If not then for 20 years someone has been doing it wrong.
    Rob

    Moderator

    All responses based on the 2014 NEC unless otherwise noted

  10. #10
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    I am closing this thread, in accordance with the Forum Rules.
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