The operation of the electromechanical RCD
Occasionally, an electromechanical RCD is triggered. After switching on, it can work normally for a long time, and can work every few minutes. Once a trip occurred in general in the absence of anyone in the apartment. Noticed occasional power surges. Could this be related?
If you simulate such a situation in your mind, then somewhere after the RCD there is a leak. It can be twisting or poor insulation. You can try to calculate. But then again, it happens sporadically, what factors influence it is not clear. There is a chance that buying a new RCD can solve the problem. I recommend first checking the performance of your RCD https://our.electricianexp.com/en/4-sposoba-proverki-rabotosposobnosti-uzo.html