Let me clarify Lectrician
Can't really put it any clearer than that.
Bit cheeky aint it?
I was angling to the point of asking HOW all the circuits where RCD Protected....
One RCD? Odd if you still have a main switch, and non compliant.
I wanted you to tell me how they where RCD protected.....I was kind of hoping you would be saying they are all RCBO's, or there where two RCD's etc etc.
So, HOW is it setup, we now know it is a single RCD after the DP iso by the sounds of it? So has some twit put all the circuits on the RCD side of a split load board, or have you not removed the CU cover to see where the split starts/stop?