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Thread: Missing neutral

  1. #31
    Join Date
    Jun 2003
    Location
    NE (9.1 miles @5.07 Degrees from Winged Horses)
    Posts
    10,196
    Quote Originally Posted by JFletcher View Post
    at this point I would have to guess that there is an underground bond from the ground rod at the panel to the poco ground, or an overlooked or hidden bond to metal water pipe.
    Its there somewhere and may take a shovel to find.

    OP. Can you access the POCO neutral? Have you amp clamped it? Time to call the POCO and open things up. Then again if everything is working.
    Tom
    TBLO

  2. #32
    Join Date
    Apr 2008
    Location
    Ann Arbor, Michigan
    Posts
    7,129
    151115-2359 EST

    Open all breakers except one circuit. Load that circuit with at least one 1500 W spacer heater. This will provide about a 10 A load. That 10 A has to flow thru something acting as the neutral.

    But before doing this put a screwdriver in the earth somewhere away the home and where you do not expect much ground current to flow. From this earth probe run a test lead into the house near the main panel. Use an insulated wire, size unimportant. Use a high impedance meter.

    With no load on in the house, except possibly a low wattage bulb near the main panel, Measure voltage between each hot incoming line, and the earth reference. Also between earth and the neutral bus. Measure hot line to hot line voltage. Measurement should be to 1/10 V.

    Repeat these measurements with the 1500 W 120 V heater as the only load.

    From this data we can learn a lot.

    Depending upon these results the next step may be to measure magnetic fields to see were the neutral current is going.

    .

  3. #33
    Join Date
    Aug 2017
    Location
    Cornwall ny USA
    Posts
    79
    Quote Originally Posted by ptonsparky View Post
    Welll so much for my SEWAG!

    Gas heat?

    Propane tank or natural gas line?
    Natural gas, no bond on there either.
    Well, it's worked fine since 1990, maybe I could just run a single neutral to the meter. But I can't get in without breaking the seal, or call poco.

  4. #34
    Join Date
    Nov 2003
    Location
    The incredible, yet very expensive, Hudson Valley, NY NEC 2014
    Posts
    1,862
    Is this house located in Cornwall, NY?

    If so, you are required to hold a Rockland County Electrical license (or work for a licensed holder) to perform electrical work.

    no disrespect intended, but from your profile, you don't seem to qualify.

    Best of luck!
    Mike, Dutchess County, NY

  5. #35
    Join Date
    Jun 2003
    Location
    NE (9.1 miles @5.07 Degrees from Winged Horses)
    Posts
    10,196
    Quote Originally Posted by mjf View Post
    Is this house located in Cornwall, NY?

    If so, you are required to hold a Rockland County Electrical license (or work for a licensed holder) to perform electrical work.

    no disrespect intended, but from your profile, you don't seem to qualify.

    Best of luck!
    Doesn’t look good.
    Tom
    TBLO

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