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Thread: Wires in electrical box

  1. #1
    DIY Junior Member toolguy504's Avatar
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    Default Wires in electrical box

    Is it correct that you do not count the wires from the fixture (in this case a light) when calculating the size box needed. Thanks. Earl

  2. #2
    Electrician ActionDave's Avatar
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    Default

    Fixture wires don't count. Devices-switches, recpts- do count.

  3. #3
    DIY Junior Member toolguy504's Avatar
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    Default

    Thanks ActionDave. That is what I thought. Earl

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  5. #5
    Moderator & Master Plumber hj's Avatar
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    Default wires

    You mean the fixture wires do not take up any space. Anyway, here is the quote. Note the caveat about fixture wires.

    You can omit equipment-grounding conductors and up to four 16 AWG and smaller fixture wires from box fill calculations, if they enter the box from a domed luminaire or similar canopy (e.g., a ceiling paddle fan canopy) [314.16(B

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