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Thread: 6 10 Rooftop Temperature Adder

  1. #11
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    Mar 2014
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    Quote Originally Posted by don_resqcapt19 View Post
    Maybe that just means the temperature ratings of the conductor insulation are much more conservative than necessary....that seams to be what they said about XHHW-2.


    And I thought the 7/8" was picked because it is a standard strut channel size
    LOL....well to the first one...I can tell you WHY XHHW-2 was selected and it was less about it being Thermoset insulation and it's enhanced thermal properties.......but I would tick off some industry counterparts in the process and you know how I hate to tick people off..... Hint: all thermosets would perform better than thermoplastic in the testing process but why just XHHW-2. Well lets just say...oh nevermind it is not worth the grief I would endure.

    And in terms of the 7/8"...No........but you knew that funny man.
    *All code responses are based on the 2017 National Electrical Code®[NEC®]

  2. #12
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    Dec 2018
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    Please share the sheet.

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