Not really a request for help - more of a moan...
*sigh* up to my nose in stressville these few months (work and other stuff), now one RCBO protected ring has tripped *twice* this morning. The one with the freezer+fridge naturally...I installed the circuit - and Megger tested it 3 years ago and it is/was perfect.
Unless a rat got in and ate something (unlikely), or the RCBO throwing a wobbler[1] I suspect one of the appliances.
I do have an 18 year old freezer and a 15 year old tumble dryer on that circuit, as well as oil heaters, fridge (not that old) and misc electronics.
So I have started the process of isolating non critical devices. We are down to the fridge and freezer now.
[1] Might be a power spike upset it - we do get wobbles on the line, but suspcious it's only hitting one RCBO out of 5 currently active onesIf it happens again - I will test the RCBO with my Megger.
I might try a Megger DC 250V IR test between live-earth and neutral-earth on the appliances. Not sure if that's going to show up a leaky filter - being DC vs AC...
Hmmmm