C/U Tails in wall - protection required

[peterhyper]

The existing C/U is at almost ceiling height in a room and the old tails are plastered in the wall below it before going outside to the meter cupboard (they have no protection and are just covered in plaster). The tails have to be upgraded when the C/U is replaced, so I could take the option of putting the new tails in 50mm trunking and fixing that to the wall, but the customer wants them hidden. I won't get the new tails deep enough to have 50mm clearance from the wall to them, so I need some protection from drills etc.

Any suggestions appreciated?

 

[ferg]

Use SWA with a switch fuse in the cabinet?

 

[Deleted member 26818]

Use SWA with a switch fuse in the cabinet?

2 core with a separate earth for earthing/bonding or 3 core if a separate earth core is not wanted.

 

[happysteve]

Knew I'd seen something on here before about this: c/o Leesparkykent: Meter tails in cavity - https://www.electriciansforums.co.uk/threads/meter-tails-in-cavity.155690/#post-1412554