Main breaker is a Wylex 80/2 30m/a trip - the ring breaker is a 30A. A local spark has been around to carry out an hours worth of testing to ensure nothing silly had been done by the previous owners and other than saying that the ring breaker is normally 32A and that it's not such a good idea to have a RCD type main breaker all is as it should be.
I work from home most days and have approximately 6 workstations in my home office, occasionally they are all on concurrently along with a number of associated small power supplies feeding printers etc - most of the time all is well however this morning turning on a single workstation tripped the ring breaker. Reset ring breaker then tried the workstation again and it tripped the main breaker, reset main breaker and tried another workstation and all was well - then turned on the first workstation again and again all was well.
Sparky suggested having a dedicated ring installed just for my office so I could within reason have as many workstations on as I needed - but if the main breaker trips now with a very light load it will still trip even if I did have a separate ring.
I've unplugged everything else that is connected to the ring such as TVs fridges etc and yet I can still - but only occasionally get the ring breaker or main breaker to trip when just turning on a signal workstation.
The ring breaker has been changed for another 30A and it still tripped either itself or the main - the ring breaker has also been upped to a 40A and it still exhibits the same intermittent trip issue when different workstations are powered up.
The only component not changed is the main breaker; do they have a life span of x years? - the board takes type 2 breakers which I have been told are like rocking horse droppings to find these days (seams to be plenty on ebay) - I'm tempted to get the whole board updated.