On Mon, 07 Apr 2008 13:24:12 GMT, Fred
wrote:

In the future I would like to add a motorised door to the garage.
There is no other door into the garage so if the RCD trips I will have
to wind the door by hand! Would it be better to put the RCD outside
the garage, i.e. under the stairs? Notwithstanding the freezer
problem, why can't I have the RCD inside the house, rather than inside
the garage? The advantage of that would be that the whole 6mm^2 (or
10mm^2) cable run would be protected from house to garage.

To try and answer my own question: is the downside to locating the RCD
in the house that in the event of a trip you will have to check two
separate CUs: one in the house and one in the garage? OTOH if I went
with plan A and just had a fuse in the house, I suppose I would have
to still visit both boxes to see whether the fuse had blown or an MCB
tripped.

I suppose that I also need to measure the length of the cabel run to
make sure that if the RCD is in the house, all the disconnect times
are still within limits?