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Thread: Meter has rigid conduit to disconnect

  1. #21
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    Creating an effective path to ground

    Quote Originally Posted by augie47 View Post
    Here PVC is the "preferred" method if there are no hubs involved as metallic conduit would require a bonding bushing.
    The Code pretty much ignores the "parallel path" created by the metal nipple in this situation.
    Keep in mind that your ultimate goal is to create an effective low resistance path to ground for the metallic parts of your service conductor raceway. This is not intended to be a part of your grounding electrode but instead provide adequate arc protection for the raceway. If non ferrous is required in your application, ie Florida outside, the replace the raceway with non ferrous. If it's not required or perferred then bond the load side of all your metallic service conductors, always. It doesn't take much and it shows that you care. Have a great day

  2. #22
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    SE cable is not a popular choice around here anymore, there was a lot of it ran years ago for service conductors, I can't recall any fires started because of the SE cable itself. Seen a lot of old cable that basically has no more sheath - still no fires. If you want to claim that moisture entering via that compromised sheath is a problem - why is it any more of a problem then condensation in a raceway?

    Stray nail? PVC doesn't do much for that, neither does EMT for that matter, especially with power nailers.

  3. #23
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    Quote Originally Posted by SparkyWood View Post
    Keep in mind that your ultimate goal is to create an effective low resistance path to ground for the metallic parts of your service conductor raceway. This is not intended to be a part of your grounding electrode but instead provide adequate arc protection for the raceway.
    Did you mean that it really is to provide a low resistance path to the neutral/grounded conductor not to "ground" for all metallic parts/raceways on the line side of the service disconnect?
    Rob

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    All responses based on the 2014 NEC unless otherwise noted

  4. #24
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    Quote Originally Posted by infinity View Post
    Did you mean that it really is to provide a low resistance path to the neutral/grounded conductor not to "ground" for all metallic parts/raceways on the line side of the service disconnect?
    Often times when we say ground in electrical engineering or electric construction trade we mean the ground reference point not necessarily Earth ground

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  5. #25
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    Quote Originally Posted by DrSparks View Post
    Often times when we say ground in electrical engineering or electric construction trade we mean the ground reference point not necessarily Earth ground
    There is no "ground" on the line side of the service disconnect who was my point about connecting to the neutral or grounded conductor.
    Rob

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    All responses based on the 2014 NEC unless otherwise noted

  6. #26
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    Quote Originally Posted by infinity View Post
    There is no "ground" on the line side of the service disconnect who was my point about connecting to the neutral or grounded conductor.
    There is a ground. The neutral terminal is grounded at the pole

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  7. #27
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    Quote Originally Posted by DrSparks View Post
    There is a ground. The neutral terminal is grounded at the pole
    True but we're not talking about at the pole we're talking about at the meter enclosure which is fed by three conductors H-H-N, there is no "ground" to connect the metal parts and raceways to at the meter.
    Rob

    Moderator

    All responses based on the 2014 NEC unless otherwise noted

  8. #28
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    Quote Originally Posted by infinity View Post
    True but we're not talking about at the pole we're talking about at the meter enclosure which is fed by three conductors H-H-N, there is no "ground" to connect the metal parts and raceways to at the meter.
    Yes there is. The neutral lug is bonded to the chassis in the meter socket enclosure. This effectively grounds the metal non-current carrying parts of the enclosure

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  9. #29
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    Although "ground" is common to use for "path back to the source that isnt dirt" in the field , many of us feel it is better to say "bond" on this forum due to the prevalence of the electricity goes to ground myth and not knowing the experience level of the person on the other end. We come across many who believe in the myth on this forum and we like to straighten it out.
    Ethan Brush - East West Electric. NY, WA. MA

    "You can't generalize"

  10. #30
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    Quote Originally Posted by electrofelon View Post
    Although "ground" is common to use for "path back to the source that isnt dirt" in the field , many of us feel it is better to say "bond" on this forum due to the prevalence of the electricity goes to ground myth and not knowing the experience level of the person on the other end. We come across many who believe in the myth on this forum and we like to straighten it out.
    Your point has been duly noted

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