1. Visiting from the US? Why not try DIYnot.US instead? Click here to continue to DIYnot.US.
    Dismiss Notice

Weird Hob and Oven Wiring

Discussion in 'Electrics UK' started by shazbat66, 28 Dec 2017.

  1. shazbat66

    shazbat66

    Joined:
    28 Dec 2017
    Messages:
    2
    Thanks Received:
    0
    Country:
    United Kingdom
    Our oven, an electric fan, is wired into a normal plug socket on a 13 amp plug. Our hob is wired into the fuse box on a 32amp breaker. at Christmas the tripped twice - we were using all the rings at once.

    Since the over is wired to the supply socket that seemed to be for the hob and the hob is hardwired into the wall to the supply designed for the oven, does this sound OK?
     
  2. Sponsored Links
  3. amfisted

    amfisted

    Joined:
    28 Mar 2011
    Messages:
    780
    Thanks Received:
    13
    Location:
    Flintshire
    Country:
    United Kingdom
    No expert me, and no doubt real experts will be along to give you an authoritative answer.

    However, as far as I know an electric cooker should have its own circuit independent of any other part of the house installation, so neither oven nor hob should be plugged into the ring main.
     
  4. diyer56

    diyer56

    Joined:
    26 Jun 2013
    Messages:
    191
    Thanks Received:
    26
    Location:
    Mid Glamorgan
    Country:
    United Kingdom
    It depends on the oven - some are supplied by the manufacturer with a 13A plug and can be plugged in. What make/model is the oven?
     
  5. JohnD

    JohnD

    Joined:
    15 Nov 2005
    Messages:
    66,006
    Thanks Received:
    3,572
    Location:
    Coastal
    Country:
    Cook Islands
    do you mean the hob is on its own dedicated circuit? Not connected (incorrectly) to a socket circuit, or one that is also used for something else, such as a shower?

    And you mean that the 32A hob breaker tripped? And nothing lost its power apart from the hob?

    That is most irregular. A hob doesn't usually trip the breaker, and 32A should be plenty.

    An electric hob never plugs into an ordinary socket (a gas hob can, because it uses very little electricity, just enough for the ignition spark).

    An electric oven can be supplied from a 13Amp UK plug, provided it is a single oven (no secondary oven or separate grill compartment) and was designed for the UK market with a plug. Some continental, or catering, ovens may be intended for a 20A supply. Double ovens can't be plugged in.

    It's not clear from your post if the oven is connected to the same circuit as the hob, or is on your general socket circuit.

    However...

    An electric hob ring takes maximum load when you first turn it on from cold. After it has reached your chosen temperature, it then clicks off and on, so it's unlikely that all 4 rings would take maximum power at the same time. Unless you turned them all full on, from cold, together. Is that when it tripped?
     
  6. jj4091

    jj4091

    Joined:
    1 Dec 2006
    Messages:
    4,819
    Thanks Received:
    420
    Location:
    Cumbria
    Country:
    United Kingdom
  7. nitro23456

    nitro23456

    Joined:
    29 Nov 2008
    Messages:
    200
    Thanks Received:
    3
    Country:
    United Kingdom
    How so?

    I have a dedicated 32amp radial circuit to one of those 45a switches above the kitchen worktop and the 'cooker' switch serves a further double 45a connection unit under the worktop with an electric oven and induction hob connected.

    Nothing wrong with that.
     
  8. ban-all-sheds

    ban-all-sheds

    Joined:
    27 Aug 2003
    Messages:
    69,784
    Thanks Received:
    2,857
    Location:
    London
    Country:
    United Kingdom
    shaz - what is it that tripped - a 32A MCB or a 32A RCBO?

    And what breakers are either side of it?
     
  9. Taylortwocities

    Taylortwocities

    Joined:
    28 Jul 2006
    Messages:
    19,535
    Thanks Received:
    1,980
    Location:
    Oxfordshire
    Country:
    United Kingdom
    I just installed a Neff 4-ring induction hob. It comes with a 13A plug!
     
  10. Sponsored Links
  11. JohnD

    JohnD

    Joined:
    15 Nov 2005
    Messages:
    66,006
    Thanks Received:
    3,572
    Location:
    Coastal
    Country:
    Cook Islands
    one of us must be wrong....
     
  12. Taylortwocities

    Taylortwocities

    Joined:
    28 Jul 2006
    Messages:
    19,535
    Thanks Received:
    1,980
    Location:
    Oxfordshire
    Country:
    United Kingdom
  13. shazbat66

    shazbat66

    Joined:
    28 Dec 2017
    Messages:
    2
    Thanks Received:
    0
    Country:
    United Kingdom
    thanks guys. So the electric halogen hob is wired into the wall like a cooker would usually be. So, when I switch off the switch that says cooker, it turns of the hob. This then links to a 32A fuse in the fuse board. The fuse board went when all rings were in use. The oven is plugged into a socket. Was done by electrician who installed it.

    Other related posts have mentioned something called a diversity approach. Does this relate?
     
  14. Taylortwocities

    Taylortwocities

    Joined:
    28 Jul 2006
    Messages:
    19,535
    Thanks Received:
    1,980
    Location:
    Oxfordshire
    Country:
    United Kingdom
    Yes but, ESSENTIAL you tell us exactly what you mean by that.

    Went down the pub? Of course not.

    Something in the fuseboard blew, or tripped, perhaps. What EXACTLY was it? Send a photo if you aren't sure.
     
  15. ban-all-sheds

    ban-all-sheds

    Joined:
    27 Aug 2003
    Messages:
    69,784
    Thanks Received:
    2,857
    Location:
    London
    Country:
    United Kingdom
     
  16. SimonH2

    SimonH2

    Joined:
    4 Nov 2010
    Messages:
    5,598
    Thanks Received:
    566
    Location:
    Cumbria
    Country:
    United Kingdom
    Induction hobs have the advantage of fine electronic control over the power drawn. So (based on the small sample size I've had any dealings with) they can be programmed for the capacity of the supply and they'll work within that limit - one of the commissioning steps is to set the supply capacity. So if it's on a 13A plug and you put everything on high - then all the "rings" will actually operate at reduced power until one or more gets turned down which would allow more power to the others.
    In theory it would be possible to do this with other electric hob types, but I doubt there's all that much call for it and manufacturers won't see the commercial gain to be had by adding a load of electrics that most people won't be using.
     
  17. ban-all-sheds

    ban-all-sheds

    Joined:
    27 Aug 2003
    Messages:
    69,784
    Thanks Received:
    2,857
    Location:
    London
    Country:
    United Kingdom
    And which will provide yet another opportunity for cheese-paring to make the whole thing unreliable.
     
  18. DIYnot Local

    DIYnot Local

    Joined:
    3 Sep 2019
    Country:
    United Kingdom

    If you need to find a tradesperson to get your job done, please try our local search below, or if you are doing it yourself you can find suppliers local to you.

    Select the supplier or trade you require, enter your location to begin your search.


    Are you a trade or supplier? You can create your listing free at DIYnot Local

     
Loading...

Share This Page