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Electrical

Oven and Hob - advice on if a double oven and induction hob can be serviced by one circuit.

Anonymous user 15/03/2024 - 2.39 PM

I’m hoping that somebody could give me some advice. We recently had a new kitchen fitted, we had an excising double which is 4.1kw. This was wired into a consumer unit and a deducted cooker ring MTN132 B32 - 32amp breaker. Our new induction hob is 7.4 kw. The contractor has used the same feed from this supply to provide power for both my oven and induction hob. There are switches that isolates both appliances. It is now been suggested somebody else, that this is incorrect, and that they should have ran a totally new power supply to the board. Reason being that it could trip the board if we use all our appliances, for example at Christmas or worse may be dangerous. I have tested the system, in the best way I can by having all the appliances on and using all the hobs over a prolonged period. So far, all is good with no obvious issues. Please can anybody advice me on weather I should start again and have a new supply to the induction fitted? Thanks in advance. ** sorry I should add the exsisting cable is 6mm - the property is only 4 years old ***

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2 Answers

DEACON ELECTRICAL SERVICES

Rating: 5 out of 5

Grimsby

You can have up to 15 kw after allowing for diversity on a 6 mm cable and 32 amp mcb. Your contractor is correct in what he has carried out, hope he allowed an RCD for this circuit?

Answered12 April 2018

Great White Electrical Services LTD

Rating: 5 out of 5

Wigan

Hello it looks ok given the information you have provided (this all assuming it is wired on its own circuit and is not wired on the socket ring in that case you will need a new circuit) (however there is more than load to consider) , basically there is a Allowance for diversity, which can be found In BS7671 Assuming your using the appliances in a domestic setting It states 10amps plus 30% of your final load (plus 5 amps if there is a socket on your isolator) so 11500kw being your total load 30% = 15 amps + 10 amps =25amps (or 30amps if there is a socket on your isolator) therefore under 32 amps However you need to take into consideration the cable size supplying the circuit, RCD protection which should of been added if not present, this should all be present on a minor works cert if work has been carried out by a qualified electrician then he would of picked up on this If you still are in any doubt please contact an electrician as without being seeing the install my self i can only advise on the information provided and there may be more issues which can be only deduced from an inspection thank you *it would be reasonable to assume then that the circuit is compliant

Answered12 April 2018