rim28
Oct 12, 2009, 04:48 AM
My garage is supplied from an old system 30A fuse in house by 2.5mm armoured cable to a garage 2 way fuse box - 6A light and 16a ring circuit
The ring circuit serves washing machine, tumble dryer and freezer - plus (occasionally) a 1.5kw heater
I would like to replace this garage unit with RCB protection and at same timeplan to wire in my garden shed where I would plan to have lighting, and a couple of sockets for hand tools (possibly with the 1.5kw heater from garage)
I cannot get access back to the house consumer unit to lay a second supply but what I thought to do was replace the garage fuse box with a 2 x rcd, 2 x mcd (1 x rcd and 6A and 16A mcb for garage supply and 1 rcd for shed - and run 2.5 mm armoured to shed (Shed already has consumer unit with 1 rcd, 2 x mcb) - However all the garage consumer units only seem to have 1 rcd
I have been given 3 differing pieces of advice from 'experts'
1 - Take a fused spur off the garage ring circuit and run to shed consumer unit
2 - Split supply from house at a junction box in garage and use 1 to feed a new garage rcd/mcb consumer unit the second feed to shed consumer unit
3 - Fit a (house) consumer unit in garage with 2 rcd (1 garage 1 shed) and 2 mcb (garage) - I am uncomfortable with this one - Why make a specifis garage unit if that is not what you are supposed to use
It would be appreciated if anyone could offer some unbiased advice
The ring circuit serves washing machine, tumble dryer and freezer - plus (occasionally) a 1.5kw heater
I would like to replace this garage unit with RCB protection and at same timeplan to wire in my garden shed where I would plan to have lighting, and a couple of sockets for hand tools (possibly with the 1.5kw heater from garage)
I cannot get access back to the house consumer unit to lay a second supply but what I thought to do was replace the garage fuse box with a 2 x rcd, 2 x mcd (1 x rcd and 6A and 16A mcb for garage supply and 1 rcd for shed - and run 2.5 mm armoured to shed (Shed already has consumer unit with 1 rcd, 2 x mcb) - However all the garage consumer units only seem to have 1 rcd
I have been given 3 differing pieces of advice from 'experts'
1 - Take a fused spur off the garage ring circuit and run to shed consumer unit
2 - Split supply from house at a junction box in garage and use 1 to feed a new garage rcd/mcb consumer unit the second feed to shed consumer unit
3 - Fit a (house) consumer unit in garage with 2 rcd (1 garage 1 shed) and 2 mcb (garage) - I am uncomfortable with this one - Why make a specifis garage unit if that is not what you are supposed to use
It would be appreciated if anyone could offer some unbiased advice