What are the five major categories of wires and cables

Wires and cables are mainly divided into the following five categories: ‌

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※Bare wire and bare conductor products ‌: These wires and cables have no insulation or sheath and are made of pure conductor metals such as copper and aluminium. They are mainly used in high-altitude transmission lines, featuring excellent electrical conductivity and mechanical properties, but are prone to corrosion.

※Power cable ‌: Power cables are mainly used for transmitting and distributing electrical energy and are typically used in the main lines of power systems. They have the advantages of not occupying ground space, stable transmission performance and large distributed capacitance. According to the differences in insulating materials and voltage levels, power cables can be classified into oil-impregnated paper, plastic, rubber insulated power cables, etc.

※Electrical equipment wire and cable ‌: This type of cable is mainly used for connection and control inside various electrical equipment, and the operating voltage is mostly 1kV and below. They come in a wide variety of types and have a broad range of applications, including fire-resistant cables, flame-retardant cables, low smoke zero halogen/low smoke low halogen cables, termite-proof/rat-proof cables, etc

※Communication cable and optical fiber ‌ : Communication cable is used for transmitting information such as telephone, television, data, etc. It is usually composed of multiple conductors in the core with a protective sheath on the outside. Optical fibers are used for the transmission of optical signals and have low attenuation performance, making them suitable for long-distance communication.

※Electromagnetic wire (winding wire)‌ : Electromagnetic wire is mainly used to make the coils of electrical equipment, instruments and meters, etc. Its performance needs to meet specific usage requirements. Electromagnetic wires can be classified into various types such as enameled wires and wound wires.

These classifications are based on the manufacturing process, structural features, functional requirements and applications of wires and cables. Each type has its specific application scenarios and technical requirements.