Can the leakage of the property be replaced?

If professional replacement is required, users cannot replace it by themselves. If they live in a residential area, find property management instead. The power supply bureau is only responsible for the maintenance and management of lines, equipment and facilities in front of the user's desk, and the maintenance and management of switches, lines, sockets and other equipment and facilities behind the user's desk is the responsibility of the user himself (the property management company is responsible for the community). There are generally single, double, triple and quadruple leakage protectors, but they are rarely used. Generally speaking, single leakage protector and double leakage protector are the most commonly used in the family. If it is a single earth leakage protector, only connect the live wire (L). If it is a double grounding leakage protector, it is the live wire and the zero wire, as shown in the following figure. The upper port is the power inlet and the lower port is the outlet.