Wire and cable products are mainly divided into five categories

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2022-09-29

The main characteristics of these products are: pure conductor metal, no insulation and sheathing, such as steel-core aluminum stranded wire, copper and aluminum busbar, electric locomotive wire, etc.. Processing technology is mainly pressure processing, such as melting, rolling, stretching, twisting/compression twisting, etc. The products are mainly used in suburban areas, rural areas, customer main lines, switchgear, etc.

1. Bare wire and bare conductor products

2. Power cables

The main features of these products are: extrusion (winding) of a layer of insulation around the conductor, such as overhead insulated cables, or stranded several cores (corresponding to the phase line, zero line, ground line of the power system), such as more than two cores of overhead insulated cables, or add a layer of sheathing, such as plastic / rubber sheathed wire and cable. The main process technologies include drawing, stranding, insulation extrusion (winding), cable forming, armoring, sheathing extrusion, etc. There are certain differences in different process combinations for various products. Products are mainly used for power generation, distribution, transmission, substation and power supply lines in the transmission of high-voltage electrical energy, high current (tens of amperes to thousands of amperes), high voltage (220V to 500kV and above).

3. Wire and cable for electrical equipment

The main characteristics of these products are: many varieties and specifications, a wide range of applications, more than 1kV voltage. In the face of special occasions, new products continue to derive, such as fire-resistant cables, flame retardant cables, low-smoke halogen-free / low-smoke halogen-free cables, termite resistant cables, anti-rodent cables, oil / cold / temperature / wear-resistant cables, medical / agricultural / mining cables, thin-walled wires, etc.

4. Communication cables and optical fiber

In the past two decades, with the rapid development of the communications industry, Yunnan cable manufacturers have found that the product has also had an amazing rate of development. From the past simple telephone and telegraph cables, to thousands of pairs of telephone cables, coaxial cables, optical cables, data cables, and even combined communication cables. These products are usually small in size, uniform in structure size, and require high manufacturing precision.

5. Electromagnetic wire (winding wire)

Mainly used in a variety of motors, instruments and meters, etc.

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