On Wed, 23 Oct 2013 23:27:02 +0100, bm wrote:

14 MCBs? Jesus H.

Whats odd about that? The house has 14 spread across 4 RCDs in two
CU's. This arrangment replaced 4 wire fuses for cooker, ring main
(singular), lights (all) & garage.

As to the question, individual RCBO's seems a bit excessive. Split
load with some thought about what is "shared" will be just as
effective against the nuisance trips caused by high overall leakage.

--
Cheers
Dave.