1. Visiting from the US? Why not try DIYnot.US instead? Click here to continue to DIYnot.US.
    Dismiss Notice

earth cables with no sleeving

Discussion in 'Electrics UK' started by Jupiter01, 21 Jun 2021.

  1. Jupiter01

    Jupiter01

    Joined:
    30 Mar 2015
    Messages:
    2,941
    Thanks Received:
    39
    Country:
    United Kingdom
    I was replacing a socket for my folks and noticed a bunch of sockets that have earth wires that are not sleeved. I didn't have any sleeving available at the time.

    Does this present any major risks and how urgent is this sleeving?

    Thanks in advance.
     
  2. Sponsored Links
  3. bernardgreen

    bernardgreen

    Joined:
    3 Nov 2006
    Messages:
    25,400
    Thanks Received:
    2,528
    Location:
    Bedfordshire
    Country:
    United Kingdom
    Bare earth conductors may get pressed against bits of bare metal and/or copper that is either Live or Neutral when the faceplate is screwed back in place.
     
  4. AndyPRK

    AndyPRK

    Joined:
    4 Jan 2009
    Messages:
    5,851
    Thanks Received:
    589
    Location:
    Herefordshire
    Country:
    United Kingdom
    It was the way it was done in the 60s.
     
    • Thanks Thanks x 1
  5. IJWS15

    IJWS15

    Joined:
    18 Oct 2006
    Messages:
    1,404
    Thanks Received:
    51
    Location:
    Staffordshire
    Country:
    United Kingdom
    Are they bare copper or bare tinned (silver colour) copper?

    If the second then it could be very old wiring . . .
     
    • Thanks Thanks x 1
  6. Simon35

    Simon35

    Joined:
    27 Sep 2011
    Messages:
    555
    Thanks Received:
    62
    Location:
    Yorkshire
    Country:
    United Kingdom
    May do, but extremely unlikely.
     
    • Like Like x 1
  7. Jupiter01

    Jupiter01

    Joined:
    30 Mar 2015
    Messages:
    2,941
    Thanks Received:
    39
    Country:
    United Kingdom
    What would the consequence be?
     
  8. Jupiter01

    Jupiter01

    Joined:
    30 Mar 2015
    Messages:
    2,941
    Thanks Received:
    39
    Country:
    United Kingdom
    It’s bare copper. Looks relatively recent to me
     
  9. JohnW2

    JohnW2

    Joined:
    28 Jan 2011
    Messages:
    47,895
    Thanks Received:
    3,120
    Location:
    Buckinghamshire
    Country:
    United Kingdom
    There would be a (probably small) bang and an MCB and/or RCD would trip (immediately one re-energised circuit after replacing the faceplate). Nothing too dramatic.

    Kind Regards, John
     
    • Thanks Thanks x 1
  10. Sponsored Links
  11. Taylortwocities

    Taylortwocities

    Joined:
    28 Jul 2006
    Messages:
    20,382
    Thanks Received:
    2,106
    Location:
    Oxfordshire
    Country:
    United Kingdom
    The benefit would be that you then have an opportunity to pay another visit to your folks! LOL.
    Honestly, you seem to be doing a heap of electrical work.
    Earth sleeving is a cheap and basic thing to have in your tool bag.
     
    • Like Like x 2
  12. JohnW2

    JohnW2

    Joined:
    28 Jan 2011
    Messages:
    47,895
    Thanks Received:
    3,120
    Location:
    Buckinghamshire
    Country:
    United Kingdom
    I'm not totally sure what you are suggesting, but I do not see any significant risk/danger (to persons) that would arise from the 'bang' behind an accessory, after one had re-attached the faceplate (hopefully whilst the circuit was dead) when one re-endergised the circuit, almost certainly at a location distant from the place where the bang was going to occur.
    Indeed. Was it not apparent that I was merely answering the "what would happen?" question, NOT talking about what I personally do (which, for what it's worth, is to always use sleeving, even though I doubt that history would be different if I never had done so :) ).

    Kind Regards, John
     
    • Like Like x 1
  13. EFLImpudence

    EFLImpudence

    Joined:
    7 Jul 2010
    Messages:
    36,870
    Thanks Received:
    4,130
    Location:
    Retired to:
    Country:
    Portugal
    Alright, here goes:

    I have often wondered why we sleeve the CPC. It is true that it might be squashed against the Line terminal causing an earth fault or the Neutral terminal causing earth leakage current (unnoticed without an RCD) but that would surely be careless installation. So - with careful installation what difference does sleeving make apart from facilitating sloppy squashing of wires together?

    Would it not be better to have more earthed parts with which a stray Line conductor could come into contact?

    Is sleeving mentioned in the regulations other than possibly 'identifying' the conductor (if that were ever needed).

    Why are back boxes not insulated?
     
    • Thanks Thanks x 1
  14. JohnW2

    JohnW2

    Joined:
    28 Jan 2011
    Messages:
    47,895
    Thanks Received:
    3,120
    Location:
    Buckinghamshire
    Country:
    United Kingdom
    Same here. As I'm said, I've always done it - but, as I have implied, only because I wanted to avoid being criticised for not doing it!
    Agreed. Except in situations when appreciable movement/vibration is likely (e.g. in vehicles or 'machines'), I see no 'purpose' other than what you mention
    That could be argued.
    I may be wrong, but I can't think of anything in the regs which requires any CPC to be sleeved, beyond, as you say, the requirement for identification (which can be satisfied by the smallest bit of G/Y).

    Kind Regards, John
     
    • Thanks Thanks x 1
    • Like Like x 1
  15. bernardgreen

    bernardgreen

    Joined:
    3 Nov 2006
    Messages:
    25,400
    Thanks Received:
    2,528
    Location:
    Bedfordshire
    Country:
    United Kingdom
    Metal back boxes when earthed provide a barrier to prevent ( reduce ) current from damp accessories fixed in a damp wall making the surface of the wall Live.
     
  16. JohnW2

    JohnW2

    Joined:
    28 Jan 2011
    Messages:
    47,895
    Thanks Received:
    3,120
    Location:
    Buckinghamshire
    Country:
    United Kingdom
  17. Simon35

    Simon35

    Joined:
    27 Sep 2011
    Messages:
    555
    Thanks Received:
    62
    Location:
    Yorkshire
    Country:
    United Kingdom
    It could happen, but the design of the socket makes it very unlikely, all L/N parts are recessed (IP2X??) on the sockets I've fitted
     
    • Like Like x 1
Loading...

Share This Page