Firstly the DBs are ancient, but also haven't been tested......the sticker saying the date of the last inspection and states, "not tested 27/5/2003" and "recommended date of next inspection: ASAP". Not good.
Secondly, the circuit tripping out is 2L1, Merlin Geran MCB, 32a type 2 BS3871. There is one spare way on the small power DB, located at 8L3. (24 way DB).
It is feeding an Electrak, which is supplied in 10mm SWA. This as far as I can see supplies 8 positions, half are people with pc, phone, monitor, the other half photocopier, scanner and accessories i.e. Plasma TV. Almost certainly not more than 32A.
Floor access is pretty much a no no, most of it is laminate wood, from the DB up until the desks where it changes to floor pan grid.
Summary:
I think they have either a dodgy piece of kit, or maybe cleaners are plugging in and tripping the circuit, or a member of staff is plugging in something they shouldn't!!
It does not appear to be an overloading issue, when the breaker is off and you try to reset, the breaker will pop immediately sometimes due to the surge of many machines starting at the same time, (This is normal) resetting this a few times could lead to weakening of the MCB and this may now require replacing.
However it would appear that an attempt to carry out a periodic inspection and test was made in 2003 but never carried out, therefore in accordance with Health and Safety guidelines and BS7671 they should now seriously consider budgeting to have this done.
