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  1. #1
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    Default 200.7 Using white wire as ungrounded conductor

    Just trying to understand this section. Can a white wire be used as an ungrounded conductor and if so where/when?
    Thanks

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  2. #2
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    Default Re: 200.7 Using white wire as ungrounded conductor

    This is pretty self explanatory. White and gray wires in a cable can be re-identified and used as an ungrounded conductor. Note this applies only to cables - white and gray wires in a conduit have to be used as grounded conductors.

    The most common example is when a 2 conductor cable is used as a switch leg, the white is remarked and used as the supply to the switch (in this instance, the remarked white can only serve as a switch supply, it can't be used as the feed to a fixture - the idea being a fixture can't be supplied by two white wires)

    Occam's eraser: The philosophical principle that even the simplest solution is bound to have something wrong with it.

  3. #3
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    Default Re: 200.7 Using white wire as ungrounded conductor

    Got it thanks BK

    Quote Originally Posted by Bill Kriegh View Post
    This is pretty self explanatory. White and gray wires in a cable can be re-identified and used as an ungrounded conductor. Note this applies only to cables - white and gray wires in a conduit have to be used as grounded conductors.

    The most common example is when a 2 conductor cable is used as a switch leg, the white is remarked and used as the supply to the switch (in this instance, the remarked white can only serve as a switch supply, it can't be used as the feed to a fixture - the idea being a fixture can't be supplied by two white wires)


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