I bought a five-hole socket with L.L.1above and L2 below. On the switch and socket, it is. An inverted triangle.

First, check whether the two wires in the junction box are used to connect the power cord of the socket or the power cord and control cord of the control lamp and other electrical appliances. In the first case, there is still a missing line. Without accidents, such as electric leakage of household appliances, especially in wet weather, when the insulation between the internal wiring board and the shell of household appliances is reduced, the shell may be charged. In this case, because the shell is not grounded, the leakage switch cannot detect the leakage current, and the human body is in danger of getting an electric shock when contacting the shell of such electrical appliances.

Inside the socket: L stands for live wire, N stands for neutral wire, and E stands for grounding.

Switch: L stands for the male terminal, and L 1 and L2 respectively stand for the on-off of the switch in two states. Assuming that the switch is on at L and L 1, then L and L2 are off, while the switch is on at L and L2, and L and L 1 are off.

Test two wires with a pencil. Generally, red is charged to indicate the live line, and green is not charged to indicate the zero line (or induced electricity, the voltage is obviously lower than the live line).

Therefore, when connecting the socket, red is connected with L and green is connected with N.

If you want to control the socket through the switch, first use a 2.5㎜ cross section? 0? 5 will short-circuit the switch L 1 or L2 with the socket L, and then connect the green one to N and the red one to the switch L. ..

If the two wires of the lamp are directly controlled, the red one is connected to the switch L, and the green one is connected to the switch L 1 or L2, then the socket cannot be used because of the lack of zero wire.