To twist or not to twist?

Discussion in 'Electricians' Talk' started by Factory Cat, Dec 16, 2004.

  1. fooman

    fooman New Member

    its is a pain in the **** when testing when they are twisted together tho.

    I never twist the same as i never bend over conductors either.
     
  2. JP.

    JP. Screwfix Select

    Don't twist nuffin unless it's lighting CPC's in loop in the box cabling. and the clamp is plate....if terminal lug like the superlecs (dunno if they still exist) then twisting not necessary.
     
  3. Mr. Handyandy

    Mr. Handyandy Screwfix Select

    Last time now proving you incorrect as its getting
    boring.

    Any one show me where I gave my points of view on
    twisting or not twisting in the last 24 hours ?

    I can't find it.


    Posts: 5,853
    Registered: Jul 4, 2004
    Re: To twist or not to twist?
    Posted: Jan 4, 2007 8:59 PM Reply


    I have the answer. However, I cannot tell you
    lot.


    notice the topic title ok and the first line of your
    r post.

    now your post earlier tonight

    Crikey, I have given my points of view on this a
    long time ago and I've no wish to start it all off
    again



    :^O



    Yes bas was right. You are the most ignorant moron that ever used this forum(not verbatim quote)

    You stupid *** hole.

    Nowhere in the first instance you quote did I give ANY views.

    And if you think the same post as the one where I actually stated about my views is one, well there is no hope for you in a million years.

    YOU ARE BRAIN-DEAD.

    FULL STOP.



    Mr. HandyAndy - really
     
  4. Clark Kent

    Clark Kent New Member

    I must confess to saying the old stranded cables, are often loose when changing/replacing a fitting etc..


    Perhaps, because they have never been looked at in decades..:)
     
  5. NikT

    NikT New Member

    its is a pain in the **** when testing when they are
    twisted together tho.

    Agree with u there fooman.
     
  6. fooman

    fooman New Member

    giveup :(
     
  7. Clark Kent

    Clark Kent New Member

    Mihi ignosce. *** homine de cane debeo congredi



    ;)
     
  8. fooman

    fooman New Member

    i have seen legs of ring finals twisted together in the MCB terminal which is a right nightmare !!
     
  9. Clark Kent

    Clark Kent New Member

    i have seen legs of ring finals twisted together in
    the MCB terminal which is a right nightmare !!

    You've only got to look at old Wylex CU's..with stranded cable


    !!
     
  10. NikT

    NikT New Member

    i have seen legs of ring finals twisted together in
    the MCB terminal which is a right nightmare !!

    which you have to seperate, test and re-connect. Pain.
     
  11. fooman

    fooman New Member

    i have seen legs of ring finals twisted together
    in
    the MCB terminal which is a right nightmare !!

    which you have to seperate, test and re-connect. Pain.

    well luck would have it most times there is enough slack to snip the twists of and teminate them correctly after testing.
     
  12. Clark Kent

    Clark Kent New Member

    Night All....Xx
     
  13. fooman

    fooman New Member

    night ext
     
  14. NikT

    NikT New Member

    well luck would have it most times there is enough
    slack to snip the twists of and teminate them
    correctly after testing.

    I'm never that lucky!:^O
     
  15. Graham Daniel

    Graham Daniel New Member

    In New Zealand our mains conductors for twin and earth are:
    1mm Cross Sectional Area single stranded.
    1.5mm CSA triple stranded.
    2.5mm CSA seven stranded.
    My training some 30 years ago was to:
    1: ensure most of the terminal void was full (by folding if necessary)
    2: twist the cables together to ensure no loose strands.
    3: to retighten after a few minutes to compensate for copper flow.

    I think the USA issue being acknowledged on this thread is caused by twisting of (especially large) single stranded cables together, where screwing in to the cable closest to the screw causes significant deformation of that one strand only and I agree, this is wrong. However, for 6 or more strands, twisting is better for the following reasons:
    1: The cables are joined independently of copper flow and the screw terminal tightness.
    2: The twist imparts a texture to the outside of the resultant bundle which is highly resistant to pulling out.
    3. The compression deformation of the strands next to the screw is spread over multiple strands.

    As for testing, people carefully reading this thread should be aware that it's inadvisable to reuse any length of conductor that's been exposed to compression by a screw(Other than by rising clamp connector). Testing should relate to physical tightness checks, visual inspections and insulation, polarity and conductance testing. NOT introducing wear and tear of connections!

    Attempting to set the screw tension correctly with one single tightening is doomed to failure, the copper will flow and loosen over time. Trying to tighten harder only damages the screw and cable, this is a minimum 2-step process.
     
  16. JP.

    JP. Screwfix Select

    Do not twist
     
  17. seen it all before

    seen it all before Active Member

    Wow this thread is 11 years old and people still can't agree. I think this one might run and run.o_O
     
  18. Coloumb

    Coloumb Screwfix Select

    Having read through mostly all off it all of the sparx said don't twist and all the non-sparx said do. I think you have your answer right there, don't matter if they agree or not really.
     
    seen it all before likes this.

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