Fuse Board for Shed

glic83

Looking for a bit of advice on this 1,have a friend who is looking to get hes shed done as cheap as possible but at the same time wired right.

What i was thinking was 40 A RCBO in the main fuse board to feed the board in the shed.
35A fuse in the 2 row board(2 row board being cheaper than a single row so straight foward decision there)

Now is the rcd in the sub-board in shed going to have to be changed to a different rcd ie 300mA?

Another option would be a 40A mcb in the main board to feed the shed but i would think that the rcd would defo have to be changed in the shed fuse board then wouldnt it?
10sq swa is already run to shed from house.
Any thoughts or suggestions?

M cebee

he should get a competent spark if he want's it done right


normally you don't rcd the swa as it doesn't need it and creates a nuisance


300ma isn't normally needed or used for a shed

glic83

well he wants to do it himself so cant do anything there,would you just use the 40A rcbo then the 35A fuse in the board in the shed M cebee?

Bruthal

40A MCB in main board for the 10sq sub main, or even 32A if there is not much load going in, and the usual 30mA RCD in the sub board for the sockets, or a 20A RCBO for the sockets, 10A MCB for lights etc.

2011

10sq swa is already run to shed from house.
Any thoughts or suggestions?

The chances are this cable is large enough, but to be sure you would need to know:
1) The size of the load
2) The length of run

+1 to what the other posters have said

glic83

He is putting in 4 double sockets and a few lights,he might be using a chop saw in there he said and maybe a fridge but thats about all,run is around 10m he said