is 2.5mm2 cable fine from cooker switch to CCU?
- Thread starter baxtec1
- Start date
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Depends on the electrical kW rating of the appliances, but generally I would say using 2.5 mm2 cable between the cooker switch and the so callled CCU would be foolish.
Foolish because adding even bigger appliances later would be difficult.
In fact, it sounds woefully too small already, so don't even consider it.
Stick to size of the cable used to feed the cooker switch.
I would expect this to be a minimum of 6.0 mm2, in some rare cases 10.0 mm.
If you are reluctant in buying a reel of cable, find a place that sells small quantities or does it by the metre.
If you mean would it be acceptable to install 2.5mm T&E between the Cooker Control Unit and the outlet plate of the oven and hob.
I would say not!
Induction hobs are rarely rated at less than 20A and you would expect even a low output oven to repair a 13A fuse.
I know it could be argued, that the demand maybe not be a constant.
But in this scenario, I would be putting 6mm cable in, which would allow for a demand up to 15kW, for any future proofing.
I would say not!
Induction hobs are rarely rated at less than 20A and you would expect even a low output oven to repair a 13A fuse.
I know it could be argued, that the demand maybe not be a constant.
But in this scenario, I would be putting 6mm cable in, which would allow for a demand up to 15kW, for any future proofing.
I agree that it would make little sense, and that it would not be acceptable/compliant if the circuit were protected by a 32A MCB, given that the peak current demand of the cooking appliances would almost certainly exceed the CCC of the cable.
True. If the total load was, as you suggest, around 33A, that would, as you imply, after application of diversity, be a small enough load to be supplied by 2.5mm² cable protected by a 20A MCB ... but that would not really make much sense - particularly if most of the circuit is already wired in 6mm² or 4mm² cable.
That would be the conventional approach. Given ideal (Method C) cable installation, 4mm² cable (with a 32A MCB) would theoretically be adequate - and, as you say, would be more than adequate for any future requirements (up to 19kW of cooking appliances, if there were no additional socket supplied by the circuit).
Kind Regards, John
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E
Essex1
Are you an electrician?
Who are you asking ... baxtec1? If so, what on earth makes you think he might be an electrician?!
Kind Regards, John
E
Essex1
E
Essex1
Then please stop what you are doing before you hurt yourself or someone else.
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