On Thu, 12 Aug 2004 15:19:48 +0100, Mike Clarke
strung together this:

So someone plugs a (faulty?) power sander into a bedroom socket, puts it
beside the open window, goes outside and climbs the aluminium ladder to
sand the window frame before painting it ....

The term is "reasonably expected to supply portable equipment
outdoors". The keyword is "reasonably", if it were "possible" instead
then yes, every socket iin the house would require RCD protection.
--

SJW
A.C.S. Ltd