In article ,
writes:
On 15 Feb,
"Jim Alexander" wrote:

The system designer (your electrician?) hasn't done you any favours if he
didn't ask if you ask if you wanted your freezer on a dedicated circuit,
ditto your boiler, though where that is connected is not clear. For little
extra cost you could have had a RCBO for each socket ring, the garage on
non sockets RCD but RCD'd in the garage. Can't undrerstand the Immersion
Heater being on a sockets RCD either. Ditto cooker and hob unless there
is a control unit socket. Find out why the electrician did it this way
and maybe think about a different electrician.

I'd rather put the boiler on the RCD side, that way when you have the
(inevitable) leak into the electrics it trips /before/ it burns anything up,
and also gives an earlier of a problem.

The problem is that tripping by something else would leave the house
without frost protection, which would could be a serious disaster if
you are away at the time.

If you really want an RCD protected boiler, I would ensure it is
dedicated -- easiest way is probably an RCD protected spur on a
non-protected circuit.

--
Andrew Gabriel
[email address is not usable -- followup in the newsgroup]