Precautions when measuring leakage with digital multimeter
1. When using the 200M range of the ohm range of the multimeter, do not touch the metal part of the test pen with your hands during measurement, so as to avoid inaccurate readings.
2. When measuring each electrical equipment, discharge it first to prevent the capacitive current in the electrical equipment from hurting people.
This method can find fault points in no-power state, and is also suitable for finding power users and leakage current in workshops. Note that when looking for leakage problems, you must disconnect the power supply line and the neutral line to avoid electric shock accidents.
