"JJ" wrote


A separate non RCD circuit for fridge freezer *is* allowed on the regs
as far as I can tell

AIUI if you put anything on a non-RCD circuit (according to 17th edition)
you need it to be buried 50mm or more, or have mechanical protection - e.g.
use armoured cable - anywhere it could be drilled through in wall chases
etc.. Or you surface run it so it's visible.

If you are talking about a separate radial for the fridge freezer with its
own breaker, then using an individual RCBO in this case shouldn't cause too
many issues.
Problems have occurred in the past where one RCD covered a number of power
circuits (including freezer) and a fault with any socket/appliance anywhere
in the house could take out all power. This is not what you are considering
here IIUC.

Phil