I would like to know how the lines of power supply are differentiated? What color?

Take the low-voltage power supply line as an example: the power supply line is generally relatively neat, the three-phase wire is generally yellow, green and red, and the zero line is blue or black; Other lines, such as telecommunications and network TV, are generally black and white.

We hope you find ours helpful.

Answer hello, the wire has four colors: red, yellow, blue, and green, 1. Generally speaking, we will use red to represent the live wire, which is represented by the letter L. Red itself is a dazzling color, there will be a sense of tension after seeing it, and it can also play a warning role, while generally red or brown wires are electrified; 2. There is also a blue or black line, generally speaking, this kind of line is often called the zero line, which is represented by the letter n, which belongs to the neutral line. In some cases, light blue will be used to represent the zero line, and the lines of these colors are generally not charged, but the situation of being charged cannot be ruled out; 3. There are also green or yellow-green wires, generally speaking, it represents the ground wire, which is called the insulated wire, which plays a protective role.

Therefore, if you encounter a wire of this color, it is generally safer, and its main function is that when the zero line is broken, the zero wire will be electrified, and the ground wire can prevent the zero line from being electrified, and it can also trip the leakage protector when the leakage is leaked. There is also a rule that the ground wire cannot be used as a phase wire under any circumstances.

The color of the electric wire represents different voltages, such as the black wire is 110V, the red wire represents the three-phase 220V, the blue wire represents the three-phase 380V, the yellow wire represents the single-phase 220V, and the green wire is the grounding wire.

The meaning of different colors of the power cord is also different, so you must figure it out when wiring, each color has its use, and only reasonable wiring can be used better. Let's introduce to you what the color of the power cord represents and what classification the power cord has.

What does the color of the power cord represent?

1. Generally speaking, the color of the power cord is different on behalf of each representative, generally speaking, the color of the three-color wire is yellow, green and red, which are A, B and C three phases, for example, like blue is the zero line, yellow and green is the grounding wire, yellow, green and red are the live wire, blue is the zero line, and the yellow and green wire is connected to the PE protection line or to the equipment shell (the shell has been connected to the ground network). Sometimes the colors of the four lines are not very different, so you can have three cross-sections that are the same as the live line, and the smaller cross-section belongs to the zero line.

2. When it comes to the power supply of the transformer control circuit, generally speaking, it is at 380V, and it is possible to connect to any two live wires; If it is 220V, then just connect a live wire, a neutral wire and that's it.

What are the classifications of power cords.

1. Bare wires.

Generally speaking, this kind of wire is only a conductor, and there is no insulation layer, this kind of wire contains copper, aluminum, etc. Therefore, the layout of this product excludes stranded wires, flexible wiring, profiles and profiles for power lines.

2. Winding wire.

This kind of wire is cut in the magnetic field in the situation of the winding in the magnetic field to feel the current generated, this is also the wire used in the current to generate magnetism, this wire is also called magnet wire, and this wire has its characteristics of enameled wire, wrapping trace wire, inorganic insulated wire, etc.

3. Power cables.

This kind of wire can be said to be a kind of backbone line in the power system, so it plays a great role, mainly to transmit and distribute high-power electric energy cable products.

4. Communication cables and communication optical cables.

Communication cables are cables used to transmit telegraph, television, radio, data and other electrical information; The communication optical cable plays the role of optical fiber as the medium of light wave transmission, and also plays the role of information transmission.

5. Wires and cables for electrical dust equipment.

The use of this kind of wire is still relatively extensive, relatively speaking, it is also a variety of more kinds, and in the layout, it can also be combined with the characteristics of the equipment used and the utilization conditions to determine the layout and posture of the product.

Bare wires, winding wires, power cables, communication cables, power cords without insulation; Red represents the phase line, blue represents the zero line, and yellow-green represents the ground line.

The power line is divided into three types: phase wire, neutral wire and ground wire; Among them, the phase line can be yellow, green, and red, representing the three phases of A, B, and C respectively, the zero line can be represented by blue, and the ground wire is usually represented by a yellow and green flower line.

There are many kinds of power cords, generally there are three-color insulated wires, as well as neutral live wires. Red is the phase line, blue is the zero line, and yellow-green is the ground line.

According to industry norms, usually the red line is the live wire, the blue line is the neutral line, and the yellow and green two-color line is the ground wire.