Mar 20, 2023
1. Power system
The wire and cable products used in the power system mainly include overhead bare wires, busbars (busbars), power cables (plastic cables, oil-paper power cables (basically replaced by plastic power cables), rubber cables, overhead insulated cables), branch cables (replacing part of the busbars), electromagnetic wires and electrical equipment wires and cables for power equipment.
2. Information transmission system
The wires and cables used in the information transmission system mainly include local telephone cables, television cables, electronic cables, radio frequency cables, optical fiber cables, data cables, electromagnetic wires, power communication or other composite cables.
3. Mechanical equipment, instrumentation system
This part has applications in almost all other products except overhead bare wires, but mainly power cables, electromagnetic wires, data cables, instrumentation cables, etc.
Wire and cable products are mainly divided into five categories
1. Bare wire and bare conductor products
The main characteristics of this category of products are: pure conductor metal, no insulation and sheath layer, such as steel core aluminum stranded wire, copper aluminum busbar, electric locomotive wire, etc.; The processing technology is mainly pressure processing, such as melting, calendering, drawing, stranding/tight pressing stranding, etc.; Products are mainly used in suburban areas, rural areas, user main line, switch cabinet, etc.
2. Power cable
The main characteristics of this type of 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 wire and ground wire of the power system), such as overhead insulated cable with more than two cores, or adding a sheath layer, such as plastic/rubber wire and cable. The main process technologies are drawing, stranding, insulation extrusion (wrapping), cable, armoring, sheath extrusion, etc., and the different process combinations of various products are different.
The products are mainly used in the transmission, distribution, transmission, transformation and power supply lines of strong electric power, through the current (tens of amps to thousands of amperes), high voltage (220V to 500kV and above).
3. Electrical equipment for wires and cables
The main characteristics of this type of products are: a wide variety of specifications, a wide range of applications, the use voltage of 1kV and below, in the face of special occasions continue to derive new products, such as fire-resistant cables, flame-retardant cables, LSZH / LSZH cables, anti-termites, anti-mouse cables, oil-resistant / cold-resistant / temperature-resistant / wear-resistant cables, medical/agricultural/mining cables, thin-walled wires, etc.
4. Communication cable and optical fiber (brief introduction)
With the rapid development of the communication industry in the past two decades, the products have also developed at an amazing speed. From the simple telephone and telegraph cables of the past to thousands of pairs of telephone cables, coaxial cables, optical cables, data cables, and even combined communication cables.
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