Ring Main Circuit Breaker Keeps Tripping

Only the main circuit breaker trips not the individual breakers.
Ring main circuit breaker keeps tripping. This video gives some simple things to check in order to find what is causing the problem. Last night at 10pm the mini breaker feeding the ring main 32a tripped. We ve ready lost our freezer contents twice. Which means it is now a radio trip again.
This is a fairly common thing to happen yet can keep you searching for hours especially if it is an intermittent fault. The first thing is to find out when it tripped in other words did they turn anything on and that was when it tripped. The rcd earth leakage device keeps on tripping. I have unplugged every plug from the sockets on the ring but is still tripping.
Three reasons why circuit breaker keep tripping. This will lead to the overheating of the circuit which puts all the electrical appliances. I tried resetting but it wont even lock on now just trips to the off position. Took the face off ever socket on the ring main all wiring correct and sockets dry ring keeps tripping.
This occurs when you want a particular circuit to provide more electricity than its actual capacity. It trips for no apparent reason and often when we are away so not due to toaster or kettle. Ring main keeps tripping found three sockets metal back boxes with condensation in them which is dried out ring trip again. For example if you have a 15 amp circuit with 20 amps worth of electricity running through that same circuit because your hair dryer tv and air conditioner were all on at the same time then the circuit breaker will trip to prevent overheating.
The electric keeps tripping out the downstairs sockets. A circuit overload is one of the main reasons why circuit breakers trip constantly. My new website on diy.