On 09/07/2015 09:07, Chris French wrote:

There are no switches on the sockets. though some labels would be
useful, but mostly to save annoyance and frustration. But I imagine
these are not going to be pulled unless someone is working on the kit,
moving it etc.

There's not much point labelling plugs unless the other end of the lead
is permanently wired into the appliance. It's possible that the lead
from the plug that you labelled "PC" a few months ago is now plugged
into the back of the printer.

--
Mike Clarke