30mA leakage breaker trip home is always with what method to find the leakage point, with clamp ammeters how?
Check the leakage with shaking table or pointer multimeter 10K resistor file. In the case of power failure, the insulation resistance between the fire line and the ground wire of each branch is measured. When there is leakage, the meter will indicate a relatively small resistance value and the insulation will indicate infinity.
If it is tripped when using an electric appliance, it is suspected that there is a problem with the appliance.Check the short circuit with a multimeter of the resistance can be, in the case of power failure to detect each branch of the line of fire on the zero line resistance, the resistance is too small (a few ou, even as 0), indicating that there may be a short circuit.
Leakage indicator (a square small button, usually with the shell flush, leakage after the jump will be out), there is no indication? If not, the explanation is that the current in the circuit is too large. Should check from the direction of large load or short circuit; if there is leakage indication, check from the leakage.
