The wire and cable products used in the power system mainly include overhead bare wires, bus bars (bus bars), power cables (plastic cables, oil-paper cables (substantially replaced by plastic power cables), rubber cables, overhead insulated cables), and branch cables. (Replaces some busbars), magnet wires, and electrical equipment, wire, and cable for power equipment.
The wire and cable used for the information transmission system mainly include local telephone cable, television cable, electronic cable, radio frequency cable, optical fiber cable, data cable, electromagnetic wire, power communication, or another composite cable.
This part is used in almost all other products except for overhead bare wires, but mainly power cables, magnet 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 features of this product are pure conductor metal, no insulation, and a sheath layer, such as steel core aluminum stranded wire, copper-aluminum busbar, electric locomotive line, etc.
The processing technology is mainly pressure processing, such as smelting, rolling, pulling System, stranding/tightening stranding, etc.
Products are mainly used in suburbs, rural areas, user main lines, switch cabinets, etc.
2. Power cable
The main features of this type of product are: extrusion (winding) insulation on the outer conductor, such as overhead insulated cable, or stranding (corresponding to the phase, neutral, and ground of the power system).
Such as overhead insulated cables with two cores or more, or add a jacket layer, such as plastic/rubber sheathed wire and cable.
The main process technologies include drawing, stranding, insulation extrusion (winding), cable-forming, armoring, and sheath extrusion.
The different process combinations of various products have certain differences.
The products are mainly used to transmit strong electric energy in the transmission, distribution, transmission, transformation, and power supply lines.
The current passing through is large (tens of amps to several thousand amps) and the voltage is high (220V to 500kV and above).
3. Wire and cable for electrical equipment
The main features of this type of product are a wide variety of specifications, a wide application range, more than 1kV and below, and new products such as fire-resistant cables, and flame-retardant cables.
And low-smoke halogen-free/low Smoke low halogen cables, termite prevention, mouse cable, oil/cold resistance/temperature/wear resistant cable, medical/agricultural/mineral cable, thin wall wires, etc.
4. Communication cable and fiber (a brief introduction)
With the rapid development of the communication industry in the past two decades, the products have also experienced phenomenal growth from the simple telephone telegraph cable of the past to thousands of pairs of cable, coaxial cable, optical cable, data cable, and even combined communication cable.
The structural dimensions of such products are generally small and uniform, and manufacturing precision is required.
5. Electromagnetic wire (winding wire) (the company does not currently produce such products, so a brief introduction)
Mainly used in various motors, instrumentation, etc.
Derivatives/new products for wire and cable
The derivative/new products of wire and cable are mainly due to the requirements of the application, application requirements, equipment convenience, and equipment cost reduction, but adopt new materials, unique materials, change product structure, improve process requirements, or will be different.
The products of the variables are combined to produce.
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