Range cooker connection

[TA122]

I am intending to fit a new range cooker, the combined power rating of the ovens & hob is 14.8kW, this is about a max current rating of up to 61 Amps in my book.

I intend to fit a 63 Amp 30mamp RCD in my consumer unitto replace the current 40 Amp cooker one currently installed.

My question is... Is this OK, if so I can't locate a cooker switch unit for this current rating or a cooker outlet socket.

Can anyone advise?

Thanks

 

[Steve]

14.8kw

Thats a lot of cooking power!

I think a 63A RCD is overkill. I would use a 50Amp MCB.

Why were you going to use an RCD? Electricians usually advise against RCDs on cooker circuits.

Unless there's a socket on the CCU, but they advise against this too since sockets in kitchens usually require RCD protection!

 

[TA122]

Thanks Crafty

I spec'd a RCD as this was recommended in the installation manual for the range, I thought it was odd but what the hey!.

I very much doubt we will ever use all the hob and ovens at once, but shouldn't the breaker be able to cope with the possibility?

Your help is much appreciated

Bob

 

[BJS_Spark]

What size is the cable feeding the cooker? It is no good fitting a protection device with a current level higher than the cable is rated and could be dangerous.

I intend to fit a 63 Amp 30mamp RCD in my consumer unitto replace the current 40 Amp cooker one currently installed.

You do realise that a RCD only gives earth leakage protection and over-current protection is also required ie. RCD+MCB or RCBO?
What about diversity? and you realise it is notifiable work unless you or someone else self-certifies.

 

[the trician]

I'd be more concerned about the existing cable size.....?

You don't mention what this is?????

TT

 

[TA122]

thanks for the feedback.

I intend to run a new cable (10mm) for the cooker from the consumer unit.

I understand it is notifiable and I will be putting a plan into the local council before I start. I am a member of the IEE so I qualify to do the work as long as the council certify it afterwards according to part P (Or so I understand) - let me know if I'm wrong - but I'm sure the council will do that.

 

[TA122]

I forgot to mention - I will be fitting a RCD and MCB
Thanks

Bob