Originally Posted by mudcrab
FYI RCD = Residual Current Device. They work on the principle of current flow out of the device and back in should be close to equal. If it is not then some portion of the current is going somewhere it shouldn't....possibly you.
20mA is a common standard these days.
You can get them combined with circuit breaker protection so they provide both people and cable protection. Don't forget to test them....push the test button every 6 months or so to make sure they work.
This is literally an RCBO and exactly what I said I used. And here its typically adjustable up to 30mA.
"Residual current Circuit Breaker with Overcurrent protection"
Before you get spun off again, remember that Im American, You're from Oz, and a lot of this stuff is a type of UK standard, being marginally deployed in Thailand, and a lot of the technical wording can be different, but mean the same thing.