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-   -   Three way switch (https://www.askmehelpdesk.com/showthread.php?t=418305)

  • Nov 22, 2009, 09:54 AM
    robsbeach
    Three way switch
    My horse barn is 400' away from my house and I would like to be able to turn on a light at the barn from my house.Can I run 12/3 this far and if not ,what would be another way to do this? The lights would be two 100watt or less.
  • Nov 22, 2009, 10:36 AM
    medic-dan

    The distance is the issue, but yes you can do it for the lights.

    NEC says 5% max voltage drop. At 200 watts, you are just under 5%.

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