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Discuss Cooker supply 12kw correct cable size in the Electrical Forum area at ElectrciansForums.co.uk.

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  1. Adamk
    Offline

    Adamk EF Member

    Location:
    London
    Hey guys

    I’ve run a 6mm for a cooker, runs about 10metres. The customers has changed her mind on the cooker and gone for a 12kw range. Went back today to finish off and saw this lovely surprise. I know you have to take diversity into account. But for my peace of mind. Would 6mm 32a MCB be fine?

    Kind of panicking a bit as the jobs finished.

    What you think? Please dont tell me to tell her to change it as that’s not really an option :( Thanks
     
  2. telectrix
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    telectrix Scouser and Proud of It Respected Member

    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    nothing wrong with 6mm on a 32A unless the cable is covered in >100mm of insulation.
     
  3. Spoon
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    Spoon Forum Mentor

    Location:
    Lancashire
  4. Adamk
    Offline

    Adamk EF Member

    Location:
    London
    Well the things is that it’s inside a 25mm conduit under some screed for about 5metres... rest of it’s under the floors boards so got
    Plenty of air. Thoughts?
     
  5. 123
    Offline

    123 Electrician's Arms

    Any Under Floor Heating?
     
  6. Adamk
    Offline

    Adamk EF Member

    Location:
    London
    Nope, not at all. Run back the board is near no pipes or rads
     
  7. telectrix
    Offline

    telectrix Scouser and Proud of It Respected Member

    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
     
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  8. Adamk
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    Adamk EF Member

    Location:
    London
    Have to charge her extra for the heated screed
     
    • Funny Funny x 2
  9. ashrow
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    ashrow Regular EF Member

    Location:
    Bedfordshire
    I installed one the other day, the instruction stated 32amp supply and 6mm twin and earth
     
    • Like Like x 1
  10. Murdoch
    Offline

    Murdoch Electrician's Arms

    Location:
    Woking
    Top tip from me - get your client to define PRECISELY which model that they want to buy before 1st fix and explain why you need this ......... then they think twice about changing their minds...
     
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    • Agree Agree x 1
  11. Adamk
    Offline

    Adamk EF Member

    Location:
    London
    Yes this is the 1st time this has happened after many many kitchen jobs. Howdens muck up the kitchen layout and they had more space where the cooker was going to go, so they
    Thought they would go for a wider and more powerful as they had more space....
    Not ideal
     
  12. mattg4321
    Offline

    mattg4321 Electrician's Arms

    Location:
    South East
    Never come across a domestic cooker yet that needs a bigger supply than 32A.

    Always use diversity. Fitted cookers up to 14kw total load and never had a problem yet.
     
    • Agree Agree x 3
  13. Taylortwocities
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    Taylortwocities Electrician's Arms

    Location:
    Oxfordshire
    After diversity the estimated demand is till only 22ampsish. It'll be fine on 6mm/32A. Dont go there for Xmas lunch, just in case:p
     
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  14. Murdoch
    Offline

    Murdoch Electrician's Arms

    Location:
    Woking
    Our 17.7 kw Rangemaster is on 10mm but the OEM said 6mm would be good enough1
     
  15. 123
    Offline

    123 Electrician's Arms

    What you have should be more than fine, On Site Guide suggests a 15kW Cooker is fine on a 32A MCB and 6mm Cable.

    When customers change their mind it can be a PITA, had it before where it was a gas hob all the way so just a simple spur off the ring, got there to finish the job and no gas hob there, a blooming ceramic touch control electric one instead:rage:
     
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