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Oven choice: on the ring circuit or share radial with induction hob?

MB_1

Hi all, I hope I'm asking this in the right place. I know variations of this have been asked before, but it's very confusing!

I will be getting a 32a induction hob and a 13a oven.

The current cooker radial is 6mm cable, with a 32a mcb.

As I understand it, it might be possible to put the oven and the hob on the same radial, if you use a diversity calculation. However, not everyone agrees that diversity should be applied to induction hobs, since they can draw their full load from just two rings at once. So, it might be possible but not ideal.

Similarly, I think I could have the oven on the sockets ring, which serves the kitchen and a bedroom. That would be shared with a dryer, washing machine, kettle, toaster, microwave, coffee machine, monitor, laptop. So, probably not ideal either.

Of the two options, which would you recommend? (Rewire is not a great option due to distance from the board, and concrete floors.)

Thanks for any advice you can give - I won't be doing it myself, but just want to know my best option before asking the electrician.

Parents
  • 0

    Table 4D5 says 6mm T&E using reference method C is good for 47A, and the OSG says that 6mm with a 40A MCB is a supported combo for decent lengths of cable. So having both devices sharing the radial isn't going to tax the cable. And if you're worried about the breaker tripping during the first 15 minutes of cooking when everything is on at full and pans of water are heating up etc, then you could always replace the B32 with a B40, but I doubt that that would be needed.

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  • 0

    Table 4D5 says 6mm T&E using reference method C is good for 47A, and the OSG says that 6mm with a 40A MCB is a supported combo for decent lengths of cable. So having both devices sharing the radial isn't going to tax the cable. And if you're worried about the breaker tripping during the first 15 minutes of cooking when everything is on at full and pans of water are heating up etc, then you could always replace the B32 with a B40, but I doubt that that would be needed.

Children
  • 0 in reply to wallywombat

    Thanks - that seems pretty definitive. It's what I understood to be the case even when I first looked this question up. But for every two or three responses saying you can use diversity, you get one saying you can't! Which is confusing for for a non-professional!

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