Tim S wrote:

One thing I'm lost on, is why have an RCD (RCCB?) if we are satisfied that
the circuit will disconnect in less than 5 seconds (by my calculations, it
will disconnect in 3 seconds at worst) and if we are no longer concerned
about touch voltages.

I can't see the need for a RCD at the switchfuse position.


Example: You want to install a separate CU for external lighting at a
later
date. A box will allow you to take other tails off without disrupting
everything. But that's my opinion.


It's a good idea, though I'm personally not keen on multiple adjacent CUs.
My leaning is to leave enough spare ways that it will never be aproblem

Can be handy if you decide you want a totally separate one for
outside/garden circuits for example.


--
Cheers,

John.

/================================================== ===============\
| Internode Ltd - http://www.internode.co.uk |
|-----------------------------------------------------------------|
| John Rumm - john(at)internode(dot)co(dot)uk |
\================================================= ================/