Cooker circuit

[Jonson]

Hi all, I was wondering if anyone had any advice or put me right, im to wire a hob that's 6 kw and Elec oven 4.25 kw,would I be right in saying that a 45 amp breaker, with a 10mm cable suppling both hob and oven via Dual appliance out let plate. Would this be adequate, any help guys would be appreciated

 

[Jonson]

Also if you did use 6 mm could you still use dual cooker plate with both the hob and oven hard wired into the one supply?

 

[truckster]

Thats what I'd do.

 

[nikmet]

Also if you did use 6 mm could you still use dual cooker plate with both the hob and oven hard wired into the one supply?

yes, nothings changed

 

[Jonson]

I appreciate your point about price absoulute rip off, I am going to go for 6 mm option now anyway having worked out cable calculations.

 

[Geoffsd]

The MI s say 30 amp for hob 20 amp for oven

You must follow the Manufacturer's Instructions or it will not comply.

 

[PC Electrics]

The reason I'm thinking 10 mm is the fact that the kit fitter who I have never met has orderd this oven, I have not seen oven yet, he advised me of kw ratings and amps per appliance,

Such is the power of this new fangled internet thingy, that one can download instructions from manufacturers websites these days!! WOW.

 

[truckster]

Such is the power of this new fangled internet thingy, that one can download instructions from manufacturers websites these days!! WOW.

And pictures of ladies

 

[Jonson]

Good idea mate never thought of that lol

 

[Engineer54]

You must follow the Manufacturer's Instructions or it will not comply.

Manufacturers instructions of cookers and the like, have in the most part been misleading for as far back as i can remember. They only ever state connected load, whether those loads can be operated at the same time or not, and make no allowances for the thermostatic functioning of elements...

The diversity factor as outlined in BS7671 has been in use for over 50 years, because it Works.

 

[Geoffsd]

134.1.1

Nothing to do with diversity.
.

 

[Engineer54]

Actually it does have something to do with diversity, as your supposedly very important MI's only give connected load ratings, and as we know, they bare very little relationship in the real world...

But then again i guess, you will still carry on supplying two Radial circuits, or an over-sized cable at the customers expense, for no other reason other than ....That's what was in the MI !!!

 

[Geoffsd]

You're missing the point - thank you for your completely unfounded insult, I shall assume you misread - I am arguing the other way around.

The MI for the oven state 20A. Therefore it will supposedly come with a 20A flex. The OP is talking about having this on a 45A mcb (later he may change to 32A).

Either way this is unsatisfactory.

 

[Big n Daft]

I'm not fully upto date with the regs but with a good few years in the game I've found it pays to keep things simple, then charge accordingly.
Logic and useability would suggest a supply for each appliance rated according to the plate on the appliance, all bases covered that way.
That way if one goes belly up the housholder can still use the other appliance.
For me its nothing to do with regs, maths or cost, its just common sense.