Its main uses are:
(1) Prevent single-phase electric shock accidents during power usage.
(2) Shut off the single-phase ground fault in the operation of electrical equipment in time to prevent electrical fire accidents caused by electric leakage.
(3) Prevent electric shock accidents caused by electrical equipment and electrical line leakage.
(4) With the improvement of people's living standards, the number of household appliances is increasing. In the process of using electricity, due to defects in electrical equipment, improper use and unfavorable safety and technical measures, personal electric shock and fire accidents are given to life and property. It brings undue losses, and the appearance of leakage protectors provides reliable and effective technical means for preventing the occurrence of various types of accidents, cutting off power supply in time, protecting equipment and personal safety.