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Anyone explain these cables

Discussion in 'Electrics UK' started by RobTi, 10 Jun 2021 at 7:42 PM.

  1. RobTi

    RobTi

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    Hi found these buried behind plasterboard when I was moving my light switch. They are old timeclock cables from when there was a back boiler,pump and the council took it out and fitted a combi years ago FF935091-277E-4CFC-9C60-5ED34AA796AC.jpeg D22BFCF6-ECF6-4174-80F7-04B47DB1294F.jpeg , if I can’t find them up in the attic to put in a jb which is just above how can I make them safe ?
    Thanks
     
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  3. jacko555

    jacko555

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    Are they live?
     
  4. RobTi

    RobTi

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    just used the small power tester pen and that says live
     
  5. Harry Bloomfield

    Harry Bloomfield

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    Does turning the heating system supply off, make it dead?
     
  6. RobTi

    RobTi

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    Well tested across neutral and live and nothing, anything else to test before I put them back behind the plasterboard?
    Thanks

    although atm my lights are off so will retest again later
     
  7. RobTi

    RobTi

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    And update lighting power back on and I get 240 on the terminal block with the 2&e connected. This was connected up to the time clock around 20 years back and was disconnected when the council upgraded to a combi. Would it be wired off the lighting circuit at that time ?
    Thanks
     
  8. securespark

    securespark

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    Shouldn't be, but it may be off its own 6A breaker.

    Often run off a fused connection unit via a ring final circuit.
     
  9. Harry Bloomfield

    Harry Bloomfield

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    It may well be nothing at all to do with your heating system, rather it was a timeclock for outside lighting or similar. Another test you might try to give more clues, is parting the T&E which become live (isolate first), put both T&E's into separate connectors, power the circuit back up - then see if any lights or etc. no longer work in the house.

    EDIT - It might also be worth your while to work out (with your volt stick) which of the two T&E's is the feed and mark it up for future reference.
     
    Last edited: 11 Jun 2021 at 12:59 PM
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  11. RobTi

    RobTi

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    The t&e that is on its own is the only one with power and it’s a 2 bed ex council flat and have confirmed that this was where the ch time clock was but don’t know much more. I will try the breakers at the board as I have I think 5 on the lights and see the results
     
  12. Harry Bloomfield

    Harry Bloomfield

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    That, might have been a wall light or similar, with it's own switch and connected to the lighting circuit - as it seems to come out of a separate hole in the plasterboard?
     
  13. RobTi

    RobTi

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    Sorry maybe my photos but they all run down together and this is the kitchen wall
     
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  14. RobTi

    RobTi

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    Update all my power back on and it’s on a b6 breaker but tests with 4v and the rest of the lights seem to work 24349D22-A369-4073-8339-E9D1F5E32DB7.jpeg always wondered why so many breakers for 7 rooms. So tape over breaker and how would you terminate the connectors if they are going behind plasterboard?
    Thanks
     
    Last edited: 11 Jun 2021 at 4:28 PM
  15. jacko555

    jacko555

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    I am not an electrician.

    I would probably shove them back there, after moving to a junction box, if I couldn't work out how to terminate them somewhere else that's accessible.
    I would also ponder a maintenance free junction box and wago connectors, but, end up not.

    Don't listen to me though.
     
  16. SUNRAY

    SUNRAY

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    To me they look like classic heating cabling, Live feed on the left and control side on the right. Have you tried to trace to see where they go yet and do they feel like they are loose in the wall and may pull out?
     
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  17. RobTi

    RobTi

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    That’s what I was hoping for an old school wiring explanation only ever went to time clock they go up the wall but I can’t see them above the attic is floored and I can only get an arms length in under the floor from the eves of the attic so they must come up and run in the opposite direction and where they come up is right in the middle of a radiator but will keep looking for them.
     
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