In an office, where there is a small garden, are the sockets that are
supplying the office with a door to the garden *Required* to be RCD
protected?

Ignoring the garden completely, is the any requirement to have RCD
protection in the office at all?
(Office contains the usual officey things, such as PC's lamps, franking
machine, photocopiers, binding machines etc..

The reason I ask, is, the office I am working in at the moment has
approximately 30 PC's
It has three consumer units, all with MCB's and isolator switches.

Another issue is, the radial circuit feeding the server rack will trip when
the UPS is initially turned on, so I feel the wiring may not be up to
standard!

Also, the electricity meter is rated at 40A, when I measured the meter tail,
the office was drawing about 55-65A - the electricity company didn't seem to
worried about it until I told them their main fuse was getting quite warm -
they got this changed to a 100A one, but the meter is still only 40A -
should I be worried?

Sparks...