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Thread: Low Voltage Product (Battery powered) in a duct.

  1. #1
    Join Date
    May 2018
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    USA
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    Low Voltage Product (Battery powered) in a duct.

    What are the requirements for a low voltage (battery powered) device in a supply duct feeding only one room?

    Does the device require a listing? (UL 60730)

    Does it require the "for use in environmental spaces" statement (UL 2043 testing)

    This question mainly is asking about the 300.22 plenum/duct requirements.

    Any insight would be great.

    NEC 2017

  2. #2
    Join Date
    Jun 2003
    Location
    Hawthorne, New York NEC: 2014
    Posts
    3,833
    It would help to know what it is.

    -Hal

  3. #3
    Join Date
    Aug 2004
    Location
    Northern illinois
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    16,900
    If it is not part of the electrical installation (say it is a battery powered smoke detector) I don't think the NEC covers it.
    Bob

  4. #4
    Join Date
    Aug 2017
    Location
    Los Angeles CA
    Posts
    205
    On a larger view, why put something battery operated inside a duct? Guaranteed service call revenue every few months?

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