newsweek.ro/tehnologie/butonul-secret-de-la-contor

A hidden button in electrical panels can prevent electrocution and fires. This device, known as the RCD (Residual Current Device), should be tested twice a year to ensure safety. It quickly cuts off power if it detects dangerous current leaks, potentially saving lives. Experts recommend pressing the test button at least every six months, with some suggesting three times a year. The testing process is simple and can be done by anyone. Regular checks ensure the device functions correctly when needed, providing essential protection against electrical hazards.