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Thread: panel feeders

  1. #1
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    panel feeders

    can someone please help with the following question, i can't find an answer in the code book. i need to install feeders to a 200a, 277/480v 3 ph panelboard that is 1000' away from the MDP, it is feeding 480v pole lights in a parking lot. is it required to install a neutral conductor, or can i install just the phase conductors and grounding conductor? TIA

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    A grounded conductor is not required at a feeder panel.
    If one is installed it must comply with 215.2
    At my age, I'm accustomed to restaurants asking me to pay in advance, but now my bank has started sending me their calendar one month at a time.

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    Since you said 277/480 you would need a neutral to get 277 volts but as Augie said it's not required for 480 volt loads.
    Rob

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    All responses based on the 2014 NEC unless otherwise noted

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    Quote Originally Posted by rickdaddis@gmail.com View Post
    can someone please help with the following question, i can't find an answer in the code book. i need to install feeders to a 200a, 277/480v 3 ph panelboard that is 1000' away from the MDP, it is feeding 480v pole lights in a parking lot. is it required to install a neutral conductor, or can i install just the phase conductors and grounding conductor? TIA
    If you only have 480 V loads you don't need to run the neutral.

    However, you may find down the road that you wished you had. I think the neutral can be reduced in size so it may not be real large.
    Bob

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