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Thread: Clearance between ABS pipe and can light

  1. #1

    Default Clearance between ABS pipe and can light

    Hi!

    How much space/clearance between ABS drain pipe (master bathroom shower drain) and a can light in the kitchen below which is next to the ABS pipe?

    Thanks,
    Ben

  2. #2
    One who lurks Basement_Lurker's Avatar
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    Usually recessed lighting needs atleast 2-3 inches spacing from combustibles. The manufacturer's instructions will clarify this. The safest bet would be to use an insulation rated housing (it sounds like you might be already) and put some insulation between the housing and the ABS.
    Broken promises don't upset me. I just think, why did they believe me? -Jack Handy


    www.blackbirdkitchenandbath.com

  3. #3

    Default Clearance between ABS pipe and can light

    So, when you say 2-3 inches from combustibles does that mean ABS piping is combustible? BTW- It's an insulated can.

    Thanks,
    Ben

  4. #4
    Plumber Cass's Avatar
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    With ABS it is ok up to about 130-140 F. after that it starts to get soft and is liquid at about 230-240 F.

    I have no idea what temp can lights can get up to.

  5. #5
    Master Plumber Redwood's Avatar
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    Here is a link to Charlotte Pipes MSDS sheet for ABS pipe and fittings.
    http://www.charlottepipe.com/Documen...tings_MSDS.pdf

  6. #6
    Plumber Cass's Avatar
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    Their processing temp is higher than the melting temp.

  7. #7
    Master Plumber Redwood's Avatar
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    Flash temp is the one that really counts!

  8. #8
    Plumber Cass's Avatar
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    If his can lights get to the ABS flash point his ABS will be the last thing he needs to worry about.

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