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Thread: When are Bond bushings required?

  1. #1
    Join Date
    Mar 2014
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    Phoenix, AZ
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    When are Bond bushings required?

    When are Bond bushings required?
    Code references would be helpful as well, thank you.

  2. #2
    Join Date
    Jul 2005
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    Tennessee
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    Carultch made a chart in this thread that might prove helpful:
    http://forums.mikeholt.com/showthrea...=bond+bushings

    Section V of Art 250 gives many of the bonding requirements.

    The most common uses are probably found in 250.92 from bonding metallic service raceways and 250.97 for bonding over 250 v.
    At my age, I'm accustomed to restaurants asking me to pay in advance, but now my bank has started sending me their calendar one month at a time.

  3. #3
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    Part V of article 250


    250.90 ....250.96 & 250.97

    Bonding Bushings are not the only means to bond
    They say I shot a man named Gray and took his wife to Italy
    She inherited a million bucks and when she died it came to me
    I can't help it if I'm lucky



  4. #4
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    May 2013
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    Quote Originally Posted by augie47 View Post
    Carultch made a chart in this thread that might prove helpful:
    http://forums.mikeholt.com/showthrea...=bond+bushings

    Section V of Art 250 gives many of the bonding requirements.

    The most common uses are probably found in 250.92 from bonding metallic service raceways and 250.97 for bonding over 250 v.
    In retrospect, one thing I realized, is that the "properly bonded on other end" decision assumes that you are running a wire EGC. I specify wire EGC's all the time, so it didn't occur to me that one might not do so. Of course, if you rely on the raceway to be the EGC, it has to be bonded by approved means to both the origin and destination, while maintaining the electrical continuity throughout the length.

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