Dave Plowman (News) wrote
Adam Funk wrote

But you do get better discrimination with massive CUs, whereas
a nuisance trip in the UK cuts off half the sockets in the house.

Aren't you likely to get more 'nuisances' the more circuits you have?

Nope, the number of nuisances is obviously determined
by the number of outlets per CU breaker.

And when you do get a trip, the more circuits you
have, the less that stops when the breaker trips too.