ms2670b withstand voltage tester leakage what cause

Line insulation bends aging cracked into the water vapor, firewire and ground contact between the windings in the motor for a long time at high temperatures is the insulation insulation layer insulation performance led to reduce the insulation resistance between the windings and the chassis is lowered, the human body unintentionally touched the firewire or has produced leakage of electrical appliances in the chassis. These are possible causes of leakage.