Spur for a double socket

Discussion in 'Engineers' Talk' started by HobGoblyn, Apr 1, 2024.

  1. HobGoblyn

    HobGoblyn New Member

    Hi all, sorry another spur question.

    My son has a gas hob and an electric built in oven. Ovens died (very old) and gas hob is old.

    The oven (and cable for the auto lighting thing on the gas hob) cable goes into a round junction box which has one 1.5mm T&E coming out of it.

    Turning off downstairs sockets in the fuse box also turns this off, so must be a spur from somewhere (will need to remove kitchen units to find where it goes.

    The replacement oven comes with a 13 amp plug and says it can be plugged into a normal socket.
    Thinking of changing the gas hob to electric, can also get a hob fitted with a 13amp plug.

    I presume I’m right in thinking 1.5 T&E is too thin to have both of these plugged in. That being the case, if I replace the 1.5 T&E with 2.5 T&E and replace the round junction box with a double socket, is it safe and usable to have both the oven and hob plugged in? Or will I find if the ovens on, two saucepans boiling away and I stick the kettle on, I’ll trip the fuse?

    many thanks
  2. Bob Rathbone

    Bob Rathbone Screwfix Select

    Firstly, a hob with a 13A plug on it will only deliver 3.5kW of heat maximum. Most hobs are 8kW, cooking will be a slow process. I would suggest a new circuit wired in 10mm T&E from a 32A breaker in the CCU to a cooker control unit local to the hob. Supply the hob, a proper one, with this. Sort out the JB and fit a 13A socket, plug the oven into this. The new circuit for the hob may be notifiable.
    Ind spark likes this.
  3. Ind spark

    Ind spark Screwfix Select

    I like your suggestion Bob, but why 10mm?
  4. HobGoblyn

    HobGoblyn New Member

    Many thanks

    As the gas hob works and he’s getting a new kitchen probably next year, I’ll put on a a socket instead of the junction box and just replace oven for now.
  5. Hager the Horrible

    Hager the Horrible Active Member

    6mm not in stock. :D
    Ind spark likes this.
  6. Timbo66

    Timbo66 Active Member

    10.0mm² is a bit of overkill for a gas hob ingnition, don't you think?
  7. Wellwisher

    Wellwisher Well-Known Member

    10 mm cable is way oversized for a 32 amp circuit. 4mm is all that is required.
  8. arrow

    arrow Screwfix Select

    4mm is too small for a 32A cooker circuit. You really are a mine of bad and wrong information.
  9. Pocah

    Pocah New Member

    6mm (say no more!).
  10. Wellwisher

    Wellwisher Well-Known Member

    No it is not. 4mm cable is perfectly adequate for a 32A circuit. Why do you want to waste money and the worlds dwindling sources of copper?
  11. Wellwisher

    Wellwisher Well-Known Member

    Oversized and wasteful.
  12. Ind spark

    Ind spark Screwfix Select

    He said "say no more" o_O
    adgjl and arrow like this.
  13. arrow

    arrow Screwfix Select

    Change the record
    adgjl and Ind spark like this.

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