replacement oven wiring

[kaycee]

i am thinking about replacing our current oven with two new 3.3Kw siemens ovens. at present the oven is wired to a 30A fuse at the consumer unit. firstly,would the 30A fuse be sufficiant to serve the two ovens? and is it permissable to split the present single wire into two at a junction box in order to serve both ovens from the same single source?

 

[JohnD]

Just to check, when you say "oven" do you mean "oven" or do you mean "cooker?"

Have you got a hob as well? How is that powered?

 

[kaycee]

Just to check, when you say "oven" do you mean "oven" or do you mean "cooker?"

Have you got a hob as well? How is that powered?

the two ovens are separate 'built in' type single ovens(3.3Kw each) and there will be a totally separate 'induction' hob with it own supply.

 

[JohnD]

Then you can treat the 32A Oven circuit as a radial, provided it is run in 6mm cable as is usual, and put two 13A outlets on it, one for each oven. These can be 13A FCUs with cable outlet if you like, or single sockets (not a double socket) with 13A fused plug for each oven. Cable to the sockets must be capoable of carrying a 32A load, as this is what it is fused at. Buy sockets by a major maker (MK, Crabtree, MEM) as the cables will be large and awkward, so you need big terminals.

You can retain the old cooker switch as the isolator for two ovens, so you can turn them off e,g, in the event of a fat fire or a fault.

As thsi is being done in a kitchen it is notifiable to your local Building Control office.

 

[kaycee]

Then you can treat the 32A Oven circuit as a radial, provided it is run in 6mm cable as is usual, and put two 13A outlets on it, one for each oven. These can be 13A FCUs with cable outlet if you like, or single sockets (not a double socket) with 13A fused plug for each oven. Cable to the sockets must be capoable of carrying a 32A load, as this is what it is fused at. Buy sockets by a major maker (MK, Crabtree, MEM) as the cables will be large and awkward, so you need big terminals.

You can retain the old cooker switch as the isolator for two ovens, so you can turn them off e,g, in the event of a fat fire or a fault.

As thsi is being done in a kitchen it is notifiable to your local Building Control office.

Thanks John, thats just what i needed to know, thats a great help.