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Voltage Separation

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  • tom baker
    replied
    Originally posted by Russell Ensslin View Post
    Hope the topic isn’t dead but I still need code for the separation of low (120)and high voltage208^ in the same box


    Sent from my iPhone using Tapatalk
    208 is 120 to ground.
    Please see 300.3(C)(1)
    And the IN at the end, most miss this, and try to use a class 2 circuit with 600 volt insulation in a raceway with power and lighting.

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  • roger
    replied
    Originally posted by Russell Ensslin View Post
    Hope the topic isn’t dead but I still need code for the separation of low (120)and high voltage208^ in the same box

    There is none, 120, 240, 277, 480, are allowed in the same raceways and enclosures, see 300.3(C). Higher and lower voltages have some particulars that needs to be adhered to.

    There are also concerns if devices are in the same box with multiple voltages.



    Roger

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  • Russell Ensslin
    replied
    Hope the topic isn’t dead but I still need code for the separation of low (120)and high voltage208^ in the same box


    Sent from my iPhone using Tapatalk

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  • Chamuit
    replied
    800.133.A.1 ex #1 & #2 then.

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  • texie
    replied
    Originally posted by Russell Ensslin View Post
    Yes
    What about a barrier?


    Sent from my iPhone using Tapatalk
    that would work. Barriers are available for 4 square boxes.

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  • Russell Ensslin
    replied
    Originally posted by texie View Post
    It is likely that these can not be in the same box. Is this a class 2 circuit?
    Yes
    What about a barrier?


    Sent from my iPhone using Tapatalk

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  • texie
    replied
    Originally posted by Russell Ensslin View Post
    A concrete floor containing low and 120v wiring conduits have been damaged and are being replaced into an installed box. I thought there was a code req separation of voltages, not in ch3, not in ch1, or ch2. I know it's there. I think it's there?
    Any ideas?
    It is likely that these can not be in the same box. Is this a class 2 circuit?

    Leave a comment:


  • Russell Ensslin
    replied
    Originally posted by Chamuit View Post
    800.133.A.2 what you are looking for?
    Thanks for the chapter 8 stuff.
    No I thought there was req's about separation barriers installed in pannels, boxes. ect. Guess I must have imagined it.

    Thanks

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  • Chamuit
    replied
    800.133.A.2 what you are looking for?

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  • Russell Ensslin
    started a topic Voltage Separation

    Voltage Separation

    A concrete floor containing low and 120v wiring conduits have been damaged and are being replaced into an installed box. I thought there was a code req separation of voltages, not in ch3, not in ch1, or ch2. I know it's there. I think it's there?
    Any ideas?
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