5 core cable needed, is 3185Y suitable?

Discussion in 'Electricians' Talk' started by Hans_25, Aug 13, 2019.

  1. Hans_25

    Hans_25 Well-Known Member

    I need a 5 core cable to wire up the CH programmer, live, neutral and 3 switched lives and also to run to a remote 2 port valve which has 5 core cable. I know 3185Y has 5 cores but one core is coloured green/yellow so perhaps should not be used as a live. What's the opinion here, is 3185Y OK as long as cables are properly sleeved or use a 3187Y which is only available in 0.75mm (would prefer 1mm or 1.5mm).

    I'm guessing a plumber would use 5 core but wonder what the sparks here think...
  2. Mike83

    Mike83 Well-Known Member

    I’m not a spark but i always ensure the cable has an earth in it.
    I would be running a 3 core LNE.
    Then a 5 core for the switched lives.
  3. dobbie

    dobbie Well-Known Member

    The heating system will be fused at 3 amps, so 0.75 cable will be fine. An earth wire needs to run to every accessory whether it is getting used or not.
  4. Hans_25

    Hans_25 Well-Known Member

    Thanks both, sounds like 7 core cable, one of which is coloured green/yellow for earth, is the way to go then.

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