I have read most strings on garages and workshops and have formulated this proposal. This is a stone built workshop detached from house with 1metre gap. I am not an electrician but an oepsirenced DIYer.
I need:
a supply to 2 Fluorescent lights, 4 x dbl sockets & 2no. 3kw kilns.
Proposal:
Run a 4mm T&E from the main house CU on RCD side of split board on a 32A MCB. Total length through house 10m plus 1m across gap (concealed in a 32mm PVC wastepipe 2.5m abocve ground). Cable will then run a further 3 metres through a coal shed to the garage terminating in a 2 way CU.
This CU (which I have) has a 40A 30mA RCD and a 20A D type MCB and a 6A MCB.
I propose to run a 2.5mm T&E ring from the 20A MCB to the 4 dbl sockets and use 2no. double pole 13A FCUs for the kilns. I will run a 1mm cable from the 6A MCB to the lights (in series off 1g switch)
How does this sound ?
My main issues would be:
Is 32A on a 4mm cable okay?
Would I be better to take the 4mm from the non RCD side of the main house CU?
Is 40A RCD in the garage CU okay if I have a 32A MCB in the house CU?
Is 20A D type okay for the ring ?
Your help comments woul dbe appreciste asap as i intend to do this on my day off on Friday.
Thanks for now.
I need:
a supply to 2 Fluorescent lights, 4 x dbl sockets & 2no. 3kw kilns.
Proposal:
Run a 4mm T&E from the main house CU on RCD side of split board on a 32A MCB. Total length through house 10m plus 1m across gap (concealed in a 32mm PVC wastepipe 2.5m abocve ground). Cable will then run a further 3 metres through a coal shed to the garage terminating in a 2 way CU.
This CU (which I have) has a 40A 30mA RCD and a 20A D type MCB and a 6A MCB.
I propose to run a 2.5mm T&E ring from the 20A MCB to the 4 dbl sockets and use 2no. double pole 13A FCUs for the kilns. I will run a 1mm cable from the 6A MCB to the lights (in series off 1g switch)
How does this sound ?
My main issues would be:
Is 32A on a 4mm cable okay?
Would I be better to take the 4mm from the non RCD side of the main house CU?
Is 40A RCD in the garage CU okay if I have a 32A MCB in the house CU?
Is 20A D type okay for the ring ?
Your help comments woul dbe appreciste asap as i intend to do this on my day off on Friday.
Thanks for now.