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  1. #14
    Join Date
    Apr 2003
    Location
    Greenback, Tennessee
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    883
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    Quote Originally Posted by timjimbob View Post
    Had an issue that electrified the water pipes, and cast iron pipes in a rent house. We could not bond or add enough grounding rods to eliminate the problem. Two more 6 foot rods, ties to underground copper pipe to back yard hydrant. All existing grounding was proper. Had to have tenants move out because of shocking shower.

    Problem was bad neutral at pole. power company says they are not liable for condition of power quality coming into the residence.

    I felt exposed to a law suit even though I had done everything I can to safeguard my tenants.

    How should I make this situation safer, in future situations.
    Grounding rods are completely useless for preventing shock and that was never their purpose anyway.
    -Marty

  2. #15
    Join Date
    Oct 2002
    Location
    Plano, TX
    Posts
    2,009
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    Thread Starter
    "Grounding rods are completely useless for preventing shock and that was never their purpose anyway. "


    Why are they required then, what is their role?

  3. #16
    Join Date
    Jan 2010
    Posts
    12,748
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    Lighting strikes

  4. #17
    Join Date
    Nov 2006
    Location
    Southeastern Pa
    Posts
    27,251
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    Quote Originally Posted by timjimbob View Post
    Had an issue that electrified the water pipes, and cast Iron pipes in a rent house. We could not bond or add enough grounding rods to eliminate the problem. Two more 6 foot rods, ties to underground copper pipe to back yard hydrant. All existing grounding was proper. Had to have tenants move out because of shocking shower.

    Problem was bad neutral at pole. power company says they are not liable for condition of power quality coming into the residence.

    I felt exposed to a law suit even though I had done everything I can to safeguard my tenants.

    How should I make this situation safer, in future situations.

    Have the neutral repaired. Follow up with a call to the utility company ombudsman if the electrician says it is the utiliy's responsibility.
    [Avatar photo from a Florida training accident. Everyone walked away.]
    2 Tim 3:16-17

    RSES CMS, HVAC Electrical Specialist

    AOP Forum Rules:







  5. #18
    Join Date
    Aug 2006
    Posts
    3,023
    Post Likes
    I knew someone who had a brand new fiberglass swimming pool they couldn't use, due to getting shocked. It even did this with the meter pulled. Lawsuit went on for over two years, because the utility wouldn't admit the problem was theirs. They finally had to run six miles of neutral wire. The damages trail was in the millions, LOL.
    I only have to make it work till I retire.

  6. #19
    Join Date
    Jan 2017
    Location
    Rhode Island
    Posts
    121
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    Had to chime in on this old thread.When I worked for the Gas Company I had a Gas Supply line coming in from the Main to the House,was Hot as Hell.Put my volt stick to it,sure enough it was electrified.Was acting as some sort of Neutral or Ground.If you disconnected the Gas pipe,the lights in the House would go dull,and all electrical would start to buzz.Turns out other houses in the Neighborhood had some similar issues,but no one could figure where the problem originated from,untill now!Talk about a hair-raising experience!

  7. #20
    Join Date
    Jun 2012
    Location
    Northern NV
    Posts
    766
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    Requirement is a 25 ohm ground to rod. Do the math. That is a lot of current looking for a place to go if the neutral is defective on the utility or user side..... The farther you are from the substation, the larger the resistance and the greater the potential.

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