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Thread: Cable-RHH

  1. #1
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    Cable-RHH

    http://www.southwire.com/ProductCata...odcatsheetOEM7

    so RHH and RHW-2 is the same wire?

  2. #2
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    The sequel is never as good as the original except for The Godfather.
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  3. #3
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    Quote Originally Posted by mstrlucky74 View Post
    For some reason I can't download that information. I suspect it just means that the Southwire product is multiple-listed. Why spend the money to list three separate products if one product will meet all the requirements, especially if there is almost no cost delta in production?

  4. #4
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    Only that RHW-2 is 90*C in wet conditions versus its predecessor RHW which is 75*C rated.
    Guess they didn't want to call it RHHW instead.

  5. #5
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    Does RHH have a 2 hour fire rating for fire pumps?
    Rob

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    All responses based on the 2014 NEC unless otherwise noted

  6. #6
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    Quote Originally Posted by infinity View Post
    Does RHH have a 2 hour fire rating for fire pumps?
    If I am reading this article correct: No.

    http://ecmweb.com/safety/safety-and-...cable-products

    Used to be apparently.

    "Type RHH/RHW cable that was formerly listed for fire resistance is no longer fire resistance listed by UL."
    "Electricity is really just organized lightning." George Carlin


    Derek

  7. #7
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    Quote Originally Posted by jumper View Post
    If I am reading this article correct: No.

    http://ecmweb.com/safety/safety-and-...cable-products

    Used to be apparently.

    "Type RHH/RHW cable that was formerly listed for fire resistance is no longer fire resistance listed by UL."
    Yes that article is almost 4 years old, I believe the UL has restored the use of RHH with a 2 hour rating.
    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
    Yes that article is almost 4 years old, I believe the UL has restored the use of RHH with a 2 hour rating.
    I believe it's only 2 hour rated horizontal and not vertical(lost its listing)...need conduit to be run in vertical 2 hour rated enclosure( closet, shaft etc.)

  9. #9
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    Quote Originally Posted by infinity View Post
    Yes that article is almost 4 years old, I believe the UL has restored the use of RHH with a 2 hour rating.
    Ooops. A bit dated, eh?

    If I get bored I will look again.
    "Electricity is really just organized lightning." George Carlin


    Derek

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