concealed cables to D.B.

[Midwest]

Dohh! yeh but where did they route the existing wiring?

In the cavity probably

 

[Taylortwocities]

Cables in cavities, whatever next. Let the cavity debate begin

Ok. For THIS application, IF it is a cavity wall, it will be an internal one -between the garage and the hall - so there's no probs with bridging cavity/transference of damp etc.

 

[jonallcock]

Already have a prescribed zone formed by the CU.

good point...so it does not matter if the apparatus (socket/switch/CU) is on the other side of the wall as the zone is multi-dimensional ?

 

[jonallcock]

Dohh! yeh but where did they route the existing wiring?

On the internally wall clipped direct and capped back entry to the CU.. Approx 30 years ago

 

[telectrix]

brick out behind CU. brick out under upstairs floor. "up and under".

 

[Midwest]

On the internally wall clipped direct and capped back entry to the CU.. Approx 30 years ago

If its a rewire, still might think of relocating CU somewhere more accessible, as long as customer willing to pay for new supply distribution circuit IMO

 

[westward10]

Nothing wrong with covering the cables with 3/4mm steel plate.
There is no requirement for the steel plate to be earthed.

Am I being dumb, why won't the plate need earthing?

 

[telectrix]

Am I being dumb, why won't the plate need earthing?

read 522.6.101. basically, it' s not an exposed conductive part of the installation.

 

[Midwest]

Reg 522.6.204 (iv) mechanical protection.

PS, but the Sunday afternoon DIY'er, won't let a 3mm steel plate stop them from putting up a shelf!

 

[westward10]

Yeah being dumb was thinking it was earthed protection for cables should someone drill through them but they will/should have rcd protection.

 

[Deleted member 26818]

You need to ask the purpose of earthing in this particular instance.
No this is an option that does not include RCD protection.

 

[Wilko]

Reg 522.6.204 (iv) mechanical protection.

PS, but the Sunday afternoon DIY'er, won't let a 3mm steel plate stop them from putting up a shelf!

Maybe suggest a nice dado rail of this stuff?

Sorry, feeling cheeky this arvo ...

 

[Octopus]

The simplest answer is to have a 2g socket in the hall and this would create about ,8 inches of safe zone to the ceiling.

Job done

 

[Deleted member 26818]

Would also mean that the cables would require RCD protection.

 

[Octopus]

Would also mean that the cables would require RCD protection.

So what's the problem with that.... Who does a rewire without RCD protection in a domestic property?

 

[Deleted member 26818]

Me.
I would not install an up front 30mA RCD unless I had no other option.

 

[Octopus]

Me.
I would not install an up front 30mA RCD unless I had no other option.

Who said anything about a single upfront RCD? That wouldn't comply with the regs. RCBO board every time for me!

 

[Deleted member 26818]

Sorry, from the OP's initial post, I thought he was talking about cables supplying the CU.

 

[Deleted member 26818]

Not sure this can be treated as an internal cavity wall?
It may be that the garage is just a leanto added on to the exterior of the house.

 

[7029 dave]

brick out behind CU. brick out under upstairs floor. "up and under".

Eddie wearing.