User Tag List

Page 3 of 3 FirstFirst 1 2 3
Results 21 to 28 of 28

Thread: Securing conductors with one hole strap

  1. #21
    Join Date
    Aug 2009
    Posts
    121
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by jap View Post
    I would say, in a sense, they have created a ferrous ring around the conductor with the 1 hole strap.


    JAP>
    I have seen panel cover screws penetrate the insulation on service conductors.In our neck of the woods ,we have in the past been asked to fasten the conductors in a like manner.Typically a plastic strap is what we use.And we work in the southeast primarily.

  2. #22
    Join Date
    Dec 2006
    Location
    Eastern Oregon
    Posts
    3,818
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    That really looks terrible to me.

    The one hole strap, the inconsistently bent wires, wires up against bolt heads/threads, and the double/triple stacked washers under the 3/8's bolts screams inexperience to me.

    It really only takes a few minutes to do a good job, such that it looks like a professional was paid to do the work.

    I'm probably being too harsh, but that would be getting redone in our shop.

  3. #23
    Join Date
    Dec 2007
    Location
    NE Nebraska
    Posts
    41,644
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by jap View Post
    I would say, in a sense, they have created a ferrous ring around the conductor with the 1 hole strap.


    JAP>
    A two hole strap (with a screw in both holes) at least has a completed circuit, the one hole strap has an air gap in the "encirclement". It may have some magnetic effects but not the same as if it were completely encircling the conductor.
    I live for today, I'm just a day behind.

  4. #24
    Join Date
    Dec 2007
    Location
    NE Nebraska
    Posts
    41,644
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Cow View Post
    That really looks terrible to me.

    The one hole strap, the inconsistently bent wires, wires up against bolt heads/threads, and the double/triple stacked washers under the 3/8's bolts screams inexperience to me.

    It really only takes a few minutes to do a good job, such that it looks like a professional was paid to do the work.

    I'm probably being too harsh, but that would be getting redone in our shop.
    It may not be neat enough for some, it certainly isn't the worst thing that can happen.

    I don't see the real need to use that strap on that one conductor, but at same time have no real issue with doing so if needed to keep it in place, usually needs to be much larger enclosure for that to be much of an issue though. I have done this - usually with PVC conduit straps though.
    I live for today, I'm just a day behind.

  5. #25
    Join Date
    Jan 2007
    Posts
    4,217
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by kwired View Post
    A two hole strap (with a screw in both holes) at least has a completed circuit, the one hole strap has an air gap in the "encirclement". It may have some magnetic effects but not the same as if it were completely encircling the conductor.
    I've never witnessed the whole magnetic effect thing that everyone talks about, and, I've seen tons of ferrus entrapped conductors.

    JAP>

  6. #26
    Join Date
    Dec 2007
    Location
    NE Nebraska
    Posts
    41,644
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by jap View Post
    I've never witnessed the whole magnetic effect thing that everyone talks about, and, I've seen tons of ferrus entrapped conductors.

    JAP>
    It is there, but may not have any extreme effects in anything you have seen. I haven't really seen any extreme effects either that I can recall.
    I live for today, I'm just a day behind.

  7. #27
    Join Date
    Jan 2008
    Posts
    9,784
    Mentioned
    0 Post(s)
    Tagged
    1 Thread(s)
    Quote Originally Posted by LarryFine View Post
    I don't see why it was done either; I'm more concerned with the conductor against the bolt threads.
    Hear! Hear!
    BB+/BB=?

  8. #28
    Join Date
    Jan 2008
    Posts
    9,784
    Mentioned
    0 Post(s)
    Tagged
    1 Thread(s)
    Quote Originally Posted by jap View Post
    Give em extra credit for what seems to be like a very oversized EGC if that's actually what it is.


    JAP>
    We want that extra fault current yo!
    BB+/BB=?

Posting Permissions

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