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  1. #1
    Join Date
    Mar 2011
    Location
    Corinth, NY
    Posts
    87

    Default Distribution panel wiring

    I know this is a broken record, but, Main panel on pole comes into dist panels with 3 wires, neut and grounds not isolated. I assume there should be 4 wires from pole to house dist panels, isolated neut and gr in house dist panels.

    RussPC034757.JPGPC034748.JPG

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  2. #2
    Join Date
    Mar 2007
    Location
    Plano, Texas
    Posts
    145

    Default Re: Distribution panel wiring

    The panel at the pole is the distribution panel and needs to be grounded there (those two big white conductors dropping out of the bottom may be your insulated grounds connected to a couple of driven rods "x" feet apart). Three wires to the other panels in the house/barn/garage or where ever the first picture is taken. Those two panels in the picture need to have the ground bar bonded to the panel and the neutral bar floating to be correct. It appears that in the left panel this is not the case. Can't tell if right panel is done correctly from the picture.


  3. #3
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    26,243

    Default Re: Distribution panel wiring

    Russell,

    Are there any other wires going to/from the pole? Such as phone wires?

    The panel on the pole is the service equipment.

    All other panels are downstream of the service equipment, however, the first panel in/on the next structure (the house/garage/whatever) has different grounding and neutral bonding requirements than panels downstream of those first panels on the structure.

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
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  4. #4
    Join Date
    Dec 2007
    Location
    Chico,Ca
    Posts
    423

    Default Re: Distribution panel wiring

    The panel looks old enough to be from the era when 3-wire feeds were allowed between structures, yes, the pole is a "structure".


  5. #5
    Join Date
    Oct 2010
    Location
    MONTREAL QUEBEC-CANADA
    Posts
    1,840

    Default Re: Distribution panel wiring

    Quote Originally Posted by Gary Burnett View Post
    The panel at the pole is the distribution panel and needs to be grounded there (those two big white conductors dropping out of the bottom may be your insulated grounds connected to a couple of driven rods "x" feet apart). T
    Should be one short grounding electrode conductor close as possible at the source or am I mistaken?
    Everything else gets bonded.

    Last edited by ROBERT YOUNG; 12-20-2015 at 05:23 PM.
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