3 ways with intermediate switch using only a 2 core and earth.

Discussion in 'Electricians' Talk' started by Victor Lek, Oct 4, 2021.

  1. Ind spark

    Ind spark Screwfix Select

    Could be an option, I'll guess that the end switch only has 1 twin, but who knows.
    Post some pictures of the switches.
     
  2. bright_Spark

    bright_Spark Screwfix Select

    Have you got two T&E cables at the mid position switch?
     
  3. bright_Spark

    bright_Spark Screwfix Select

    Was just about to suggest this, this is the way we do them with conduit systems.
     
  4. Bazza

    Bazza Screwfix Select

    Thank you! I was about to try and search for that diagram!
     
  5. bright_Spark

    bright_Spark Screwfix Select

  6. Victor Lek

    Victor Lek Member

    3 switches.. 2 of them 2 ways.. one is an intermediate one.
     
  7. Tony Goddard

    Tony Goddard Screwfix Select

    Can you apply Comlecs diagram to your set up?
     
  8. Victor Lek

    Victor Lek Member

    hello, yes. the line feed gets into a rose.. from this rose its fed the lamps and another cables are sent to the switch.. in the first switch the blue cable is sleeved as brown. now from this first switch there is a twin and earth cable going to the second switch and from the second switch there is another twin and earth going to the third switch.
     
  9. Victor Lek

    Victor Lek Member

    yes but that means that from last switch I would have to wire back and that is all closed inside ceiling.. cant be added another cable.
     
  10. Ind spark

    Ind spark Screwfix Select

    Ok thought so, wireless switches might be the best option then.
     
  11. Victor Lek

    Victor Lek Member

    any idea? other than wireless?
     
  12. Bazza

    Bazza Screwfix Select

    Put in the correct cables! Sorry…
     
    bright_Spark likes this.
  13. Victor Lek

    Victor Lek Member

    thanks everyone
     
  14. bright_Spark

    bright_Spark Screwfix Select

  15. The Happy Builder

    The Happy Builder Screwfix Select

    You said it
     
  16. Ind spark

    Ind spark Screwfix Select

    Why did you wire it in 2 core?
    Or is this an inherited job?
     
  17. Victor Lek

    Victor Lek Member

    inherited.. bought the house it was there. extension was partially done.. but this is done and wiring is there.. all plastered and painted.. wont break it and destroy it to add another core.. if its a no-no 1000% then I would leave the switches individual. thats it.. i hoped that it would worked I honestly dont see it that dangerous.. considering the mecanical rubber insulation of the twin and earth and the low load it will be carrying.. but.. of course im not an expert and if I cask for an advice is for someting..
     
  18. Ind spark

    Ind spark Screwfix Select

    Nightmare, I know you don't want to, but I would bite the bullet and chase a cable in from the last switch up to the light, you'll wish you did if you don't.
     
    FlyByNight and Bazza like this.
  19. bright_Spark

    bright_Spark Screwfix Select

    It is 100% a no no mate.
     
  20. Bazza-spark

    Bazza-spark Screwfix Select

    If it really is rubber then you need a rewire, and yes 1000% no no.
     

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