Oven and hob wiring

Sester70 · Tuesday at 4:55 PM

So some advice please. Just putting in new kitchen. Looking at wiring for hob and cooker. I have had new consumer unit fitted and 6mm to 32amp breaker for cooker. I'm looking at getting an induction hob so that will be around 7k and a single oven so that will be around 3k. So do I put it all off the cooker circuit or put another line in for oven. Don't want to hang oven off socket circuit really. 10k combined with everything running max will trip it I guess but I see some people do this as nothing is usually all running at max? I'm thinking of another 2.5mm in for just the single oven and then leave hob on 6mm?
Thanks guys.
I have an electrician checking everything, he said just hang oven off socket circuit but I'm not sure that's a good idea?

EFLImpudence · Tuesday at 5:10 PM

Sester70 said:
So some advice please. Just putting in new kitchen. Looking at wiring for hob and cooker. I have had new consumer unit fitted and 6mm to 32amp breaker for cooker. I'm looking at getting an induction hob so that will be around 7k and a single oven so that will be around 3k. So do I put it all off the cooker circuit

Yes. Perfectly normal.

EFLImpudence · Tuesday at 5:12 PM

A 'cooker' includes a hob and an oven. That's why the circuit is called a 'cooker circuit'.

Sester70 · Tuesday at 5:45 PM

So if it's drawing 45amps on a 6mm cable and 32amp breaker that's fine?

pete01 · Tuesday at 5:48 PM

Yes, have you heard of diversity? (Not the dance group)

EFLImpudence · Tuesday at 5:52 PM

Sester70 said:
So if it's drawing 45amps on a 6mm cable and 32amp breaker that's fine?

It won't draw that much when all the elements are cycling off and on (more off than on).

The formula we use to calculate the diversity is -

10000 / 240 = 41.66A (the 6mm² can handle that anyway)
41.66 - 10 = 31.66 x 0,3 = 9.5 + 10 = 19.5A.

The circuit could handle 20kW.

Sester70 · Tuesday at 6:20 PM

Perfect, thanks

morqthana · Tuesday at 9:56 PM

pete01 said:
Yes, have you heard of diversity? (Not the dance group)

The concept which makes the eyes of the gammons bulge and swivel?

pete01 · Tuesday at 10:35 PM

morqthana said:
The concept which makes the eyes of the gammons bulge and swivel?

Wrong time and place

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Oven and hob wiring

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