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2022
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02
Wire and cable products are mainly divided into five categories
Cable
1. Bare wire and bare conductor products the main features of this kind of products are: pure conductor metal, no insulation and sheath layer, such as steel cored aluminum strand, copper aluminum bus bar, electric locomotive line, etc; The processing technology is mainly pressure processing, such as melting, calendering, drawing, stranding / compression stranding, etc; The products are mainly used in suburban, rural, user main line, switch cabinet, etc.
2. The main features of this kind of power cable products are: extruding (winding) the insulation layer outside the conductor, such as overhead insulated cable, or several cores stranded (corresponding to the phase line, zero line and ground wire of power system), such as overhead insulated cable with more than two cores, or adding sheath layer, such as plastic / rubber sheathed power line cable. The main process technologies include drawing, stranding, insulation extrusion (wrapping), cable forming, armor, sheath extrusion, etc. different process combinations of various products are different. The products are mainly used for strong electric energy transmission in power generation, distribution, transmission, transformation and power supply lines, with large current (tens of amps to thousands of AMPS) and high voltage (220V to 500kV and above).
3. Wires and cables for electrical equipment. These products are mainly characterized by a wide range of varieties and specifications, a wide range of applications, and more use voltages of 1kV and below. In the face of special occasions, new products are constantly derived, such as fire-resistant cables, flame-retardant cables, low smoke zero halogen / low smoke low halogen cables, anti termite, anti mouse cables, oil / cold / temperature / wear-resistant cables, medical / agricultural / mining cables, thin-walled wires, etc.
4. Communication cable and optical fiber (brief introduction) with the rapid development of communication industry in recent 20 years, products also have an amazing development speed. From simple telephone and telegraph cables in the past to thousands of pairs of telephone cables, coaxial cables, optical cables, data cables, and even combined communication cables. The structural size of this kind of products is usually small and uniform, and the manufacturing accuracy is required to be high.
5. Electromagnetic wire (winding wire) is mainly used for various motors, instruments and meters.
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