Oven and hob supply

[mobileipj]

about to refrub kitchen and have the following in situ

cooker supply with 32a mcb wired with 10mm to 45a switch cooker and socket then 10mm to the CCU

im looking to install seperate oven (now on other side of kitchen) and hob same side as current supply.

the oven is 5.5kw and the hob 7.2kw

can i take both off the existing supply (leaving the 45a dp in place), the cooker would require a run over 6-8 meters from ccu using 6mm - and if so where do i spur from - the ccu

thx

 

[oharaf]

It might be my maths!!!


But I make this a potential demand for just the cokker and oven of about 54 amps.

So you cannot hope to pull this all through one single 32amp breaker!!

You would need a 32Amp MCB for the cooker and 40 Amp MCB for the oven, before going with this you will still need to consider what you want to plug in, v. drop etc.

Get a spark in you don't want to burn your house down

 

[pompeygit]

Well the cable size is fine and will take over 60amps if fixed by method 1. I would personally apply diversity in this situ. Get rid of the switch with the socket outlet that will save 5amps and put in a 45amp switch. Allow 14amps for the cooker and 16amps for the hob so you could use a 32amp breaker. As the cable size is so large you could put a larger breaker in (40 amp providing your consumer unit is suitable) but 32 should be fine. The problem I see is splitting the cable to supply the other side of the room. I presume you have a cooker outlet. The only thing I can think of is to replace this with atwin outlet type, then you can take a feed to the cooker and to the hob. The feed to the other side of the room will also have to have a 45amp switch. This would mean the 1st switch would isolate both appliances and the second switch the oven. You could have got away with 1 switch for both appliances if they were within 2 metres of each other. As Oharaf has said Volt Drop needs to be calculated, so the full length of the cable is needed to do this.

 

[pompeygit]

These people do a double outlet.........perhaps some sparks can advise a more local outlet


http://www.emetco.co.uk/ProductDetail.asp?P=455&C=6&Count=0&txtSearch=<span class=[/url]

 

[pompeygit]

http://www.emetco.co.uk/ProductDetail.asp?P=455&C=6&Count=0&txtSearch=<span class=

 

[mobileipj]

Thx guys

The cable run would be 5.9m, could reduce it by upto 1mtr by locating the second switch differently if that helps.