What do different colors of wire insulation represent? -Wire and cable manufacturers

The operation of wires and cables is an indispensable infrastructure in modern society, which is directly related to our daily life, work and production activities. In home decoration, the selection and installation of wires are particularly important, and the color identification of wire insulation is a detail that cannot be ignored. Different colors of insulation represent different wire functions, and the correct understanding and application of these colors are essential to ensure electrical safety and convenience of maintenance.

There are six main colors of wires commonly used in home decoration: red, yellow, blue, green, black and yellow-green. These colors correspond to different types of wires:

- The live wire (L) usually uses red, yellow or green, but it is recommended to use only one of these colors in home decoration, with red as the first choice.

- The neutral wire (N) should use blue.

- The ground wire (E) must use yellow-green.

In the case of a three-phase 380V voltage entering the home, the colors of the live wire should include red, yellow and green to distinguish different circuits. This color distinction not only helps electricians to quickly identify wires during installation and maintenance, but also effectively avoids operational errors caused by color confusion, thereby ensuring personal safety.

The standardized use of wire colors is a requirement of the national standard, which helps to correctly distinguish between phase, neutral and ground wires and prevent incorrect operations. If the wire colors are used improperly, it may cause identification difficulties during maintenance and increase safety risks. Therefore, wires should be selected and installed strictly in accordance with color standards during home decoration. For installed lines, if there is no uniform color separation, additional markings should be made on the lines and clearly marked on the circuit diagram for future maintenance and inspection.

In order to further improve the safety of home circuits, it is recommended to use low-smoke, halogen-free and flame-retardant wires and cables that meet national standards. These wires and cables usually use high-purity oxygen-free copper as the wire core to effectively prevent overload, and use environmentally friendly materials as insulation, which greatly reduces the risk of leakage and short circuit. Choosing such wires and cables can not only ensure the safety of family members, but also provide more comprehensive electrical protection for the family.

In short, the correct understanding and application of the color identification of the wire insulation layer is essential to ensure home electrical safety and convenience of maintenance. When decorating your home, you should strictly abide by the wire color usage standards and choose high-quality wire and cable products to ensure the safety and reliability of your home circuits.