Put a 16a TypeB RCBO on the RCD free side of a split board. Mistakenly I joined the neutral off the RCBO to the wrong neutral bar. This main RCD kept tripping and got around 75vac.
Ok, I swapped it over and it worked properly. But how did I get 75 amps instead of 240v or no volts at all??
Ok, I swapped it over and it worked properly. But how did I get 75 amps instead of 240v or no volts at all??