Power Flux (Dimming)

Discussion in 'Electrical Forum discussion & Blog' started by swami69, Apr 28, 2012.

  1. swami69

    swami69 New Member

    Messages:
    2
    Location:
    Benton, AR
    OK, here is my problem. I live in a newly constructed house. They are building a new house right next door. I am seeing a power flux (dimming) in my lights whenever any of the following occurs:

    - I turn on the A/C in my house
    - I turn on the washing machine in my house
    - the compressor next door kicks on (for their nail gun and/or other tools)

    The compressor next door is hooked up to a temporary post on the street. I have had my electrician come look along with the utility company. The utility company says that the house is getting plenty of power. So now, short of getting another electrician in here, trying to figure out what the problem could be (and if my electrician, who is the one who did the wiring during construction, doesn't know what he's doing). Most of the lights in the house are 60W if that matters.

    Any thoughts on what the problem might be? I would think that given the proper wiring that I shouldn't see any kind of power flux.

    Thanks for the help in advance.
  2. jimbo

    jimbo Plumber

    Messages:
    8,997
    Location:
    San Diego
    Even in a new house, the start up of a large A/C compressor can cause a momentary slump, which could cause some flickering or dimming.
    The washing machine, or something next door, should NOT.

    Did the utility company actually come out and look at the situation?

    The only definitive test is to install a volts and amps recorder on your panel. You can probably rent that equipment, but it won't be cheap.
  3. Speedy Petey

    Speedy Petey Licensed Electrical Contractor

    Messages:
    988
    Location:
    NY State, USA
    This can be absolutely normal, even in a new house.

    What relevance does the house next door have? Are you implying that that is somehow the cause?
  4. swami69

    swami69 New Member

    Messages:
    2
    Location:
    Benton, AR
    The utility company came out twice. The first time to upgrade the wire from the street to the box on the house. The second time they checked the voltage and said I was getting the full amount. I asked if the distance from the transformer/pedestal was too far and they said no (only b/c other houses on the street were set up that way).

    As for the house next door, the flux is being caused by the air compressor that is hooked up to the temporary post for the other house. Could there be an issue with how the temporary is set up too?
  5. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    21,806
    Location:
    New England
    If the wires are correctly sized for the load and the connections are all tight all along the path to the load, unless the transformer supplying the house(s) is undersized, the voltage should be pretty stable.
  6. Speedy Petey

    Speedy Petey Licensed Electrical Contractor

    Messages:
    988
    Location:
    NY State, USA
    My home is wired with ALL #12 for lighting and receptacle branch circuits, and the circuits are pretty well laid out.
    I STILL get lighting dimming when the refer, A/C, pool pump, etc, kick on.

    Even if there is an "issue" (not sure what this means) with the setup next door, what do you propose is done? The POCO and electrician have both looked at it.
  7. Speedy Petey

    Speedy Petey Licensed Electrical Contractor

    Messages:
    988
    Location:
    NY State, USA
    Be careful, if you're not really nice you'll get a nasty PM, like I did. :p
    LOL!!
  8. DonL

    DonL Jack of all trades

    Messages:
    3,812
    Location:
    Houston, TX

    Maybe adding a Flux Capacitor would help.
  9. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,253
    Location:
    Cave Creek, Arizona
    The only way the neighbor's AC could affect your lighting is if the power TO the transformer is inadequate, because both wires should be connected to the transformer, NOT to each other. Can your penguin tell if I am pregnant?
    Last edited: Apr 30, 2012
  10. BobL43

    BobL43 DIY Senior Member

    Messages:
    1,786
    Location:
    Long Island, NY
    HJ, the LINUX Pingu knows all. he just said you are too old to become pregnant, but still young enough to cause it.:p

    http://www.google.com/search?q=ping...bFoqBgwe7mejiDQ&ved=0CGMQsAQ&biw=1090&bih=705


    Bad dude and Tux seem to waffle

    ah, Don went ahead and put up another icon

    so easy, even an old fart can do it.
    Last edited: May 1, 2012
  11. DonL

    DonL Jack of all trades

    Messages:
    3,812
    Location:
    Houston, TX

    It is amazing what a Flux Capacitor can do.
  12. BobL43

    BobL43 DIY Senior Member

    Messages:
    1,786
    Location:
    Long Island, NY
    Especially if it a poly-phase Tantilum
  13. DonL

    DonL Jack of all trades

    Messages:
    3,812
    Location:
    Houston, TX
    That is the type that I use.

    I have no voltage or current drop with the poly-phase Tantilum type.

    In fact it made my Voltage and Current go up a bit.

    I just wish they did not cost so much and were easier to get.

    I guess new technology does cost a little more.
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