Results 1 to 11 of 11
  1. #1
    Join Date
    Mar 2007
    Location
    Santa Rosa, CA
    Posts
    2,617

    Default NEC Bonding Article

    Neutral and equipment ground can only be bonded together at the service equipment. I was trying to find the specific article. Right now, my brain is muddy and I am (for some reason) unable to decipher clearly. Is this the correct reference?

    From 2017 NFPA 70 (NEC)

    250.142 Use of Grounded Circuit Conductor for Grounding Equipment.
    (B) Load-Side Equipment. Except as permitted in 250.30(A)(l) and 250.32(B) a grounded circuit conductor shall not be used for grounding non-current-carrying metal parts of equipment on the load side of the service disconnecting means or on the load side of a separately derived system disconnecting means or the overcurrent devices for a separately derived system not having a main disconnecting means.

    Similar Threads:
    Inspection Referral
    Department of Redundancy Department
    http://www.FullCircleInspect.com/

  2. #2
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    26,560

    Default Re: NEC Bonding Article

    Yes.

    "
    ... shall not be used for grounding non-current-carrying metal parts of equipment on the load side of ...
    "

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  3. #3
    Join Date
    Mar 2007
    Location
    Santa Rosa, CA
    Posts
    2,617

    Default Re: NEC Bonding Article

    Quote Originally Posted by Jerry Peck View Post
    Yes.

    "
    ... shall not be used for grounding non-current-carrying metal parts of equipment on the load side of ...
    "
    Thanks Jerry,

    I hope you are doing well.

    Department of Redundancy Department
    http://www.FullCircleInspect.com/

  4. #4
    Join Date
    Mar 2013
    Location
    Md and or PA
    Posts
    126

    Default Re: NEC Bonding Article

    250.142
    Is for using the grounded ( neutral) for the grounding ( ground) conductor on the load side of the service.This is what was done for years for 3 wire ranges and dryers.


    My first thought when I read your post was 250.24. Which is the article explaining the 3 locations the grounding electrode conductor is permitted to be connected to the grounded service conductor ( neutral)


    I am curious as to exactly what it is you are looking for ? An equipment ground ( branch circuit ground) or the grounding electrode conductor ( service)


  5. #5
    Join Date
    Mar 2007
    Location
    Santa Rosa, CA
    Posts
    2,617

    Default Re: NEC Bonding Article

    Quote Originally Posted by jack davenport View Post
    250.142
    Is for using the grounded ( neutral) for the grounding ( ground) conductor on the load side of the service.This is what was done for years for 3 wire ranges and dryers.


    My first thought when I read your post was 250.24. Which is the article explaining the 3 locations the grounding electrode conductor is permitted to be connected to the grounded service conductor ( neutral)


    I am curious as to exactly what it is you are looking for ? An equipment ground ( branch circuit ground) or the grounding electrode conductor ( service)
    Jack,

    I was looking for where the grounded and grounding conductors are to be bonded together. Looks like 250.24 (A)(5) & (B) also covers that.

    That is, if I am reading this correctly. Right now, I have a head cold. Might explain why I was having trouble yesterday.

    Department of Redundancy Department
    http://www.FullCircleInspect.com/

  6. #6
    Join Date
    Oct 2010
    Location
    MONTREAL QUEBEC-CANADA
    Posts
    1,873

    Default Re: NEC Bonding Article

    Quote Originally Posted by Gunnar Alquist View Post
    Jack,

    I was looking for where the grounded and grounding conductors are to be bonded together. Looks like 250.24 (A)(5) & (B) also covers that.

    That is, if I am reading this correctly. Right now, I have a head cold. Might explain why I was having trouble yesterday.
    In most cases, bonding / grounding takes place at the main service equipment panel.
    Here is a PDF. Hope it helps. http://www.homeinspector.org/files/i...ts/Alquist.pdf
    Get better soon.

    Best.
    Robert

    Robert Young's Montreal Home Inspection Services Inc.
    Call (514) 489-1887 or (514) 441-3732
    Our Motto; Putting information where you need it most, "In your hands.

  7. #7
    Join Date
    Mar 2007
    Location
    Santa Rosa, CA
    Posts
    2,617

    Default Re: NEC Bonding Article

    Quote Originally Posted by ROBERT YOUNG View Post
    In most cases, bonding / grounding takes place at the main service equipment panel.
    Here is a PDF. Hope it helps.
    Har har. A comedian. Just what I needed.

    Department of Redundancy Department
    http://www.FullCircleInspect.com/

  8. #8
    Join Date
    Oct 2010
    Location
    MONTREAL QUEBEC-CANADA
    Posts
    1,873

    Default Re: NEC Bonding Article

    Not making a funny, Gunner.
    "So Sorry" if it seemed that way. Not intended.

    As to your question, "I was looking for where the grounded and grounding conductors are to be bonded together." I took it literally.
    I have, as well as many, have been known to come up empty at times, brain fart, blank, reclusing myself/themselves from what I, they know, knew, momentarily drawing a blank/s.
    Not fun but it is what is is.

    Hope you get well soon.

    Robert Young's Montreal Home Inspection Services Inc.
    Call (514) 489-1887 or (514) 441-3732
    Our Motto; Putting information where you need it most, "In your hands.

  9. #9
    Join Date
    Mar 2007
    Location
    Santa Rosa, CA
    Posts
    2,617

    Default Re: NEC Bonding Article

    Robert,

    I found it funny because you sent me my own Grounding & Bonding presentation back to me.

    Department of Redundancy Department
    http://www.FullCircleInspect.com/

  10. #10
    Join Date
    Oct 2010
    Location
    MONTREAL QUEBEC-CANADA
    Posts
    1,873

    Default Re: NEC Bonding Article

    I try to be thoughtful.

    Robert Young's Montreal Home Inspection Services Inc.
    Call (514) 489-1887 or (514) 441-3732
    Our Motto; Putting information where you need it most, "In your hands.

  11. #11
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    26,560

    Default Re: NEC Bonding Article

    Gunnar,

    I think Robert is missing what you are saying.

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •