Number of lights allowed on a circuit

Discussion in 'Electrical Forum discussion & Blog' started by nashkato, Apr 30, 2009.

  1. nashkato

    nashkato New Member

    Messages:
    10
    Location:
    Durham, NC
    I'd like to add undercabinet lighting to an existing 15-amp circuit powering the lights in my kitchen. We plan to install two 2-bulb xenons and two 3-bulb xenons undercabinet lights controlled by one switch. Does this count as 1 or 4 lights toward the limit?

    The circuit currently powers 2 kitchen fixtures, 1 breakfast nook fixture, 2 attic bulb fixtures and 2 garage bulb fixtures. I run compact fluorescents so the load is low and they're seldom powered all at once, but I'm just not sure if the undercabinet is too much for the circuit. Thanks.
  2. Speedy Petey

    Speedy Petey Licensed Electrical Contractor

    Messages:
    988
    Location:
    NY State, USA
    Unless you have a local code amendment that actually gives fixtures a value then they don't count for anything. They are already taken into account in the general demand calculation.

    What you have will NOT overload that circuit. I wouldn't give it a second thought.
  3. nashkato

    nashkato New Member

    Messages:
    10
    Location:
    Durham, NC
    Thanks, Petey. I agree that the total won't be excessive. Cheers.
  4. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,309
    Location:
    Cave Creek, Arizona
    bulbs

    The total wattage of the bulbs would be the important thing, not how many there are, and even then if they were low voltage you would have to convert it to the line voltage to get their effect on the circuit's load.
  5. Cass

    Cass Plumber

    Messages:
    5,980
    Location:
    Ohio
    The total wattage of the bulbs and the total wattage of what ever else is on that circuit, totaled up...will give you your answer...Speedy Petey is probably right...
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