This is applicable to the electrical appliance of Australia, New Zealand etc. It is applicable to leakage protection of hand held electric tool, electric water heater, strong release gas water heater, solar energy water heater, electric water boiler, air-conditioner, rice cooker, induction cooker, computer, TV set, refrigerator, washing machine, hair-dryer, electric iron, etc electric pump, high pressure electric cleaner, electric grass cutter,