Chris Bacon wrote:
wrote:
If your house is modern or has been fairly recently rewired all sockets
which 'might be used for appliances outdoors' must have RCD protection
anyway, this will be in the consumer unit (Fuse box). Thus additional
protection is unnecessary and can even be a bit dangerous as there
will be no discrimination between the RCDs.

Dangerous? Because "there will be no discrimination between the
RCDs"? How?

I was going to go further...

Essentially because you may trip one or both of the related RCDs and
then putting them back on may, or may not, energise something
unexpectedly. It's an unlikely cause of danger I must admit but why
spend money on extra, unnecessary, complication which may confuse you.

--
Chris Green