Wiring for oven

[EFLImpudence]

Your right on the boarder line at 41.66 amps. 6mm is rated at 41amps.

Nope, wrong again. 6mm² T&E is 47A.

 

[pete01]

It doesn't work like that for cooking appliances.

Because of 'diversity' a 32A cooker circuit can supply upto 20kW of cooking appliances.

Thought it was 15kw? Asking for a friend....lol.

20kw works out to 33 amps.
You might get away with 19kw.

 

[Murdochcat]

Some might say you can take into consideration "Maximum diversity factor" that not everything will be on at the same time. It will be at Christmas.

What nonsense.

You can’t apply diversity to showers and EV points

But cookers you absolutely can and DO

 

[EFLImpudence]

15kW with integral socket at the switch, 20kW without.

 

[Murdochcat]

Nope, wrong again. 6mm² T&E is 47A.

That rather depends on the installation method of the cable

 

[Collectors]

Nope, wrong again. 6mm² T&E is 47A.

Not if run in a wall "like the post is saying" it has a lot less of an amperage rating as any heat cant be disbursed so easily like an open clipped cable that can be classed for a 47 amp rating.

 

[EFLImpudence]

6mm² T&E has a maximum CCC of 47A.

 

[pete01]

Not if run in a wall "like the post is saying" it has a lot less of an amperage rating as any heat cant be disbursed so easily like an open clipped cable that can be classed for a 47 amp rating.

Reference method C clipped direct as in buried in the wall=47A.

 

[Murdochcat]

6mm² T&E has a maximum CCC of 47A.

not under a foot of insulation it doesn't

 

[EFLImpudence]

6mm² T&E has a maximum CCC of 47A.

not under a foot of insulation it doesn't

FFS. Then don't install it under a foot of insulation.

 

[flameport]

All in the current and previous editions of the On Site Guide.
Previously in the Regulations for the Electrical Equipment Of Buildings starting with the 10th edition published in 1934 and contained in every edition since then until the information was moved in the OSG.

The only difference is that is was 10A + 50% long ago, revised due to cookers becoming more efficient as insulation was added to ovens.
It should be revised again as induction hobs are significantly more efficient than those with resistive elements.

Anyone calling themselves an 'electrician' or anyone who owns any edition of these publications from the last 90 years should be aware of this information.

 

[EFLImpudence]

20kw works out to 33 amps.
You might get away with 19kw.

20,000W / 240V = 83.333A -10 = 73.333A x 0.3 = 22A + 10 = 32A

I realise you were dividing by 230V but it is very unlikely that the Wattage quoted was at that Voltage.

 

[EFLImpudence]

Table A1 is even more accurate: