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Discuss Method to install 19.6KW oven in single phase property in the Electrical Wiring, Theories and Regulations area at ElectrciansForums.co.uk.

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  1. dtec dave
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    dtec dave Regular EF Member

    Location:
    Leeds
    As the title says, a customer has bought a 19.6 Kw 3 oven/6 induction hob burner that they have kindly asked me to install for them into their 3 bedroom semi!

    I'm a bit stuck as to go about this as the amps it pulls is over 80, I know there will be some diversity etc but has anyone any suggestions as to how to go about this?

    Cheers
     
  2. telectrix
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    telectrix Scouser and Proud of It Trusted Advisor

    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    10mm on a 50A MCB. (40A if ref. method dictates lower CCC).
     
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  3. Murdoch
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    Murdoch Electrician's Arms

    Location:
    Woking
    Make and model of unit?

    We have a Rangemaster with a "17.6kw" load - running on 10mm, but the manufacturers state minimum 6mm

    There is no way on earth any domestic oven would pull anything over 32A IMHO
     
  4. telectrix
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    telectrix Scouser and Proud of It Trusted Advisor

    Location:
    cheshire/staffordshire
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    Telectrix
    and even if it did for short periods, the 32A MCB will handle 48A for an hour +.
     
  5. dtec dave
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    dtec dave Regular EF Member

    Location:
    Leeds
  6. dtec dave
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    dtec dave Regular EF Member

    Location:
    Leeds
    It all sounds a bit 'stick a 50amp breaker in and hope it doesn't trip out on crimbo day'! My first thought was to do this but was just wondering if there were any other ideas about how to do it..all the specs and calcs tell you it should pull over 50 amps.
     
  7. telectrix
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    telectrix Scouser and Proud of It Trusted Advisor

    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    standard cooker diversity calc. gives 32A ( without a socket on the cooker switch. so a 40A breaker feeding either a 10mm or 6mm ( depending on installation method ) would be compliant.

    what do manufacturers instructions stipulate?
     
  8. Murdoch
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    Murdoch Electrician's Arms

    Location:
    Woking
    no way.................. most houses don't pull over 30A
     
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  9. telectrix
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    telectrix Scouser and Proud of It Trusted Advisor

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    ours sits at around 4A until 'er indoors powers up the hot tub and/or sauna. then it spins up a bit.
     
  10. Leesparkykent
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    Leesparkykent You Rock Gmes Staff Member Trusted Advisor

    Location:
    Kent
    The manufacturers instructions state

    "Supply can vary depending on usage, please consult a qualified electrician for ampere requirement"

    If you seek guidance on diversity then the guidance gives you the 1st 10A and 30% of the remainder which is 32A.

    32A is bang on the limit of diversity and the induction hob has Boost functions so it would be prudent to give yourself a bit of wiggle room. If it was me I would be installing a 50A OCPD and suitably sized cable based on the design current of 50A.
     
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  11. Rpa07
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    Rpa07 2000 posts - only 46379 behind Telectrix! Electrician's Arms

    Location:
    Bristol
    Business Name:
    Ebenezer electrical
    Livin' the dream there Tel! and all with an ale in yer mitt! Oh the other half, how they do live! (Though it seems like the little lady is relaxing and you're running around with a clamp meter in your hand, sounds like my house!)

    To the OP, have they a feed to cooker point already or are you installing from scratch? What is there already? You haven't stated.
     
  12. Midwest
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    Midwest Electrician's Arms

    Location:
    Oxfordshire
    They also state using a H05V2V2-F cable (final connection, one assumes) of 3 x 10mm 3 core cable (220-240V). Good luck with that!
     
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  13. sam400
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    sam400 Regular EF Member

    Location:
    sussex
    Depends who's using it as well?
    Could be someone running a catering business from home or could be someone cooking for two every night but wants the bragging rights of a massive range!
    They will have completely different load profiles.
     
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  14. dtec dave
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    dtec dave Regular EF Member

    Location:
    Leeds
    I didn't state, as what's there already is irrelevant to the question I was asking.
     
  15. SWD
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    SWD Gender neutral Electrician's Arms

    Location:
    London
    Do you have pampass grass growing out front?
     
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  16. telectrix
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    telectrix Scouser and Proud of It Trusted Advisor

    Location:
    cheshire/staffordshire
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    no, but we have silly ass grass on the fence line.
     
  17. Midwest
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    Midwest Electrician's Arms

    Location:
    Oxfordshire
    We've already been there.
     
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  18. telectrix
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    telectrix Scouser and Proud of It Trusted Advisor

    Location:
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    next it will come round to the "where the f*ck are we" tribe.
     
  19. SWD
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    SWD Gender neutral Electrician's Arms

    Location:
    London
    I am new here, never knew there was a wife swapping sub forum......
     
  20. Midwest
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    Midwest Electrician's Arms

    Location:
    Oxfordshire
    Tel OIC for hot tubs, speak to him.
     
  21. mhar
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    mhar Electrician's Arms

    Location:
    devon
    Had to look up OIC. = Opioid Induced Constipation
     
  22. telectrix
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    telectrix Scouser and Proud of It Trusted Advisor

    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    ??????.
     
  23. telectrix
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    telectrix Scouser and Proud of It Trusted Advisor

    Location:
    cheshire/staffordshire
    Business Name:
    Telectrix
    i thought it might be Octopus Insurance Co. I've got my PL with them.
     
  24. Midwest
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    Midwest Electrician's Arms

    Location:
    Oxfordshire
    Ooopps sorry, OIC - Officer in Charge of everything about hot tubs. :)
     
  25. telectrix
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    telectrix Scouser and Proud of It Trusted Advisor

    Location:
    cheshire/staffordshire
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    Telectrix
    it's a tub. it's hot. some magic thing heats the water, and another magic thing makes it bubble. what else is there to know?
     
  26. Midwest
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    Midwest Electrician's Arms

    Location:
    Oxfordshire
    Are the bubbles human generated, or is that faux pas in hot tub circles?
     
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