What do I mean on the socket? L is the live line or the zero line?

L connect the live wire (phase wire), n connect the zero wire, and e or the ground wire identifies the ground wire. (the sign letter is "L" fire line), zero line (the sign letter is "N" zero line), and the order is left zero and right fire.

The live wire is the power line that transmits power in the circuit, where L stands for live wire incoming, L 1 and L2 stands for live wire outgoing.

1, two wires in the lighting circuit, one is called live wire, which is abbreviated as L in English, usually red, yellow or green; The other is called zero line, which is abbreviated as n in English, usually blue or yellow; In addition, there is ground wire E, which is usually yellow-green or black.

2. The three plugs are arranged in a regular triangle, and the longest and thickest copper plug on it is the ground wire. The two wires below the ground wire are the live wire (symbol letter "L") and the zero wire (symbol letter "N").

3.l stands for live line in, n stands for zero line, and L 1 and L2 stands for live line out. For single opening, only one pole L 1 or L2 can be connected, and generally L 1 can be connected to make the opening and closing position clearer. If you connect two switches, you should use both. The sequence is left zero and right fire, the live wire is connected with switch L, and the control line is connected with L 1.

Single-phase three-wire sockets are common, with ground wire in the middle, zero wire on the left and live wire on the right. The symbol letter of the fire line is L, the symbol letter of the zero line is N, the N on the socket represents the position of the zero line, and L represents the position of the fire line.

When wiring the socket, we can distinguish the live wire, neutral wire and ground wire by color. Usually blue represents the zero line, yellow and green represents the ground line, and red represents the fire line. We can also find live wires with electric probes. When wiring the socket, everyone should face the direction of the panel and follow the principle of left and right fire grounding to connect the wires.

The installation of the socket is also particular. For example, the socket of the washing machine should be about 1.2- 1.5 meters from the ground, and it is best to install a three-level socket with a switch. The socket of the range hood should be installed at a height of 1.8-2 meters from the ground.

Most households use single-phase electricity with a voltage of 220V V, and industrial electricity uses three-phase electricity with a voltage of 380V V V. The colors of three-phase electricity are generally red, yellow and green, and each phase can be called live wire. So the color of the fire line is generally red, yellow and green. The zero line is neutral, usually blue. The ground wire is generally yellow-green, commonly known as flower wire.

At present, most of the power sockets we use are single-phase three-wire sockets or single-phase two-wire sockets. Single-phase three-wire socket, with grounding wire in the middle, is also used for positioning, and the other two ends are connected with live wire and zero wire respectively. The wiring sequence is left zero and right fire, that is, the zero line on the left and the live line on the right. All household appliances with metal shells use single-phase three-wire power plugs. The three plugs are arranged in a diamond shape, and the longest and thickest copper plug on the top is the ground wire.

When the socket panel faces the user:

1. The right hole of the dual-hole socket is the live wire (L) and the left hole is the zero wire (N).

2. The right hole of three hole socket is the live line (L), the left hole is the zero line (N), and the middle hole is the ground line (E or G).