What are the basic categories of wires and cables?
Although the wire and cable industry is only a supporting industry, it accounts for 1/4 of the output value of China's electrical industry. It has a wide variety of products and a wide range of applications, involving industries such as electricity, construction, communications, and manufacturing, and is closely related to various sectors of the national economy. What are the categories of wire and cable products? Let me take you to a more detailed understanding.
There are five main categories of wires and cables:
1. Bare wires and bare conductor products
The main characteristics of this type of product are: pure conductor metal, without insulation and sheath layer, such as steel core aluminum stranded wire, copper aluminum busbar, electric locomotive wire, etc; The processing process is mainly pressure processing, such as smelting, calendering, drawing, stranding/compression stranding, etc; The products are mainly used in suburban areas, rural areas, user mainlines, switch cabinets, etc.
2. Power cable
The main characteristics of this type of product are: extruding (winding) an insulating layer around the conductor, such as overhead insulated cables, or twisting several cores (corresponding to the phase, neutral, and ground wires of the power system), such as overhead insulated cables with more than two cores, or adding a protective layer, such as plastic/rubber sheathed wires and cables. The main process technologies include drawing, stranding, insulation extrusion (wrapping), cabling, armor, sheath extrusion, etc. The different process combinations of various products vary.
The product is mainly used for the transmission of strong electric energy in power generation, distribution, transmission, transformation, and power supply lines, with large currents (tens of amperes to thousands of amperes) and high voltages (220V to 500kV and above).
3. Wire and cable for electrical equipment
The main characteristics of this type of product are: a wide variety of specifications, a wide range of applications, and a wide range of operating voltages of 1 kV and below. In the face of special situations, new products are constantly derived, such as fire-resistant cables, flame retardant cables, low smoke zero halogen/low smoke low halogen cables, anti-termite, mouse resistant cables, oil resistant/cold resistant/temperature resistant/wear-resistant cables, medical/agricultural/mining cables, thin-walled wires, and so on.
4. Communication cable and optical fiber
With the rapid development of the communication industry in the past twenty years, products have also experienced an alarming rate of development. 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 dimensions of these products are usually small and uniform, with high manufacturing accuracy requirements.
5. Electromagnetic wire (winding wire)
Mainly used for various motors, instruments, etc.
In addition, there are also some derivative and new products for wires and cables, which are mainly generated by the adoption of new materials, special materials, or changes in product structure, or increases in process requirements, or combinations of different types of products due to different application situations, application requirements, and requirements for the convenience of equipment and reducing equipment costs. Adopt different materials such as flame retardant cables, low smoke zero halogen/low smoke low halogen cables, anti termite, anti mouse cables, oil/cold/temperature resistant cables, etc; Change the product structure, such as fire-resistant cables; Improve process requirements such as: medical cables, etc; Combination products such as OPGW, etc; Facilitate installation and reduce equipment costs such as prefabricated branch cables.
Through the above brief introduction, I believe everyone has a foundation in mind. We must select wires and cables according to actual needs when selecting wires and cables. Don't buy some substandard wires for temporary convenience, which may cause a fire. Therefore, selecting the right and safe cable is the primary consideration. We select the Pearl River Cable carefully, select good raw materials, create high-quality home wiring, and give you and your family a reassuring guarantee.