depth of chase and rcd protection.....

[kevyn]

If the cables are chased more than 50mm into wall what is the requirements for rcd protection?

Have missplaced the big red so can't check just now.

It is not possible for me to rcd protect new cables in extension without ripping up rest of the house. It is feed from an old 3036 rewireable board.

 

[bigbaddave]

What work are you doing would be a good start?

and id colour your red book in green if i was you..

 

[keniff]

Still need rcd for sockets if any

 

[Deleted member 26818]

Cables at a depth less than 50mm require RCD protection.
So your chase is going to have to be deeper, probably 60mm.
Or you could use some galv condit as mechanical protection.

 

[keniff]

I think the building regs state depths of 3rd of the thickness of the wall for vertical chases and 6th for horizontal chases so gonna have to be quite thick walls to get away with it

 

[SYKRAPS]

Just RCD protect the cables of the circuit that you are working on at the CU

 

[ste mac]

Can't you put an RCD in line with the 3036 fuse?

 

[Octopus]

Why don't you just replace the CU. That shouldn't need ripping the house apart.

 

[telectrix]

unless he finds underfloor/in wall IR faults, shared neutrals, lack of bonding etc.

 

[DPG]

60mm - that's nearly 2 and half inches ! Daz

 

[keniff]

Bursting into the cavity lol

 

[Octopus]

unless he finds underfloor/in wall IR faults, shared neutrals, lack of bonding etc.

With issues like that he shouldn't be adding to a house til they are fixed should he?

 

[timo1]

RCD fused spur supplying extension sockets, or just rcd sockets would solve the problem, or use some black and red.....JOKE!! lol