Hello Everyone,
I'm after a little advice if possible please.
We are in the middle of building an extension on the annexe of our house, the annexe currently has one ring main and one lighting circuit coming from the main house CU.
The main CU has one RCD(100ma) protecting all ring mains for both the annexe and the main house, all lighting circuits and not on RCD.
The current annexe kitchen will be moving, however there is no cooker feeds to worry about as they are gas, the old kitchen will become a utility room.
My intention is to put a new CU in the annexe fed from the main CU and for it to have the following layout.
RCD1 (30ma)
1)32a - existing ring main (removed from old CU)
2)32a - small ring main for new kitchen (4 double sockets with a couple of switched fused Spurs for under worktop sockets for appliances)
3)32a - ring main for all other rooms in the new part of the annexe extension.
RCD2 (30ma)
4)16a - immersion heater
5)6a - existing lighting
6)6a - new lighting
So my question I need to ask is regarding the cable between the two CU's.
The distance between the two is around 25m max.
My plan is to use 16mm 3 core SWA protected by a 45 or 50a mcb on the non RCD side of the old CU.
Am I going about this the correct way?
And a second question,
In the new annexe kitchen (currently a lounge/front room) there is a couple of sockets on the existing ring main. They are on the opposite wall to which the kitchen units will be fitted, aprox 4m wide room.
Would it be incorrect to have the new kitchen sockets on their new ring and the existing sockets on a different ring in the same room?
Sorry for this being a bit long winded, but I've tried to cover everything, please ask if I've missed anything.
Thanks in advance
Tom.
I'm after a little advice if possible please.
We are in the middle of building an extension on the annexe of our house, the annexe currently has one ring main and one lighting circuit coming from the main house CU.
The main CU has one RCD(100ma) protecting all ring mains for both the annexe and the main house, all lighting circuits and not on RCD.
The current annexe kitchen will be moving, however there is no cooker feeds to worry about as they are gas, the old kitchen will become a utility room.
My intention is to put a new CU in the annexe fed from the main CU and for it to have the following layout.
RCD1 (30ma)
1)32a - existing ring main (removed from old CU)
2)32a - small ring main for new kitchen (4 double sockets with a couple of switched fused Spurs for under worktop sockets for appliances)
3)32a - ring main for all other rooms in the new part of the annexe extension.
RCD2 (30ma)
4)16a - immersion heater
5)6a - existing lighting
6)6a - new lighting
So my question I need to ask is regarding the cable between the two CU's.
The distance between the two is around 25m max.
My plan is to use 16mm 3 core SWA protected by a 45 or 50a mcb on the non RCD side of the old CU.
Am I going about this the correct way?
And a second question,
In the new annexe kitchen (currently a lounge/front room) there is a couple of sockets on the existing ring main. They are on the opposite wall to which the kitchen units will be fitted, aprox 4m wide room.
Would it be incorrect to have the new kitchen sockets on their new ring and the existing sockets on a different ring in the same room?
Sorry for this being a bit long winded, but I've tried to cover everything, please ask if I've missed anything.
Thanks in advance
Tom.