The HYA225 * 2 * 0.5 cable specifications in the Tianlian area are complete

Description :

　　Application areas of wires and cables: 1. Communication cables and optical fibers, mainly used in the broadband communication industry. With the rapid development of the communication industry in the past two decades, products have also experienced astonishing growth rates. From simple telephone and telegraph cables in the past to thousands of pairs of telephone cables, coaxial cables, fiber optic cables, data cables, composite communication cables, etc. This type of product structure requires high manufacturing accuracy.

　　2. Power cables are used for power transmission. The main features of this type of product are: extruding (winding) an insulation layer outside the conductor, such as overhead insulated cables, or twisting several cores (corresponding to the phase line, neutral line, and ground line of the power system), such as two core or more overhead insulated cables, or adding a protective sheath layer, such as plastic/rubber sheathed wires and cables. The main process technologies include drawing, twisting, insulation extrusion (wrapping), cabling, armor, protective layer extrusion, etc. The different process combinations of various products have certain differences. The product is mainly used for the transmission of strong electrical energy in power generation, distribution, transmission, transformation, and power supply lines, with high currents (tens of amps to thousands of amps) and high voltages (220V to 500kV and above).

　　3. Electrical equipment wires and cables are used in special occasions. The main features of this type of product are: a wide variety of specifications, a wide range of applications, and a high usage voltage of 1kV and below. In the face of special occasions, new products are constantly emerging, such as fire-resistant cables, flame-retardant cables, low smoke halogen-free/low smoke low halogen cables, anti termite, anti mouse cables, oil resistant/cold resistant/temperature resistant/wear-resistant cables, medical/agricultural/mining cables, thin-walled wires, etc.

　　4. Bare wires and bare conductor products are mainly used as semi-finished products for various wires and cables, with a small amount used in the manufacturing of communication wires and electrical appliances.. This type of pure conductor metal has no insulation or sheath layer, such as steel cored aluminum stranded wire, copper aluminum busbar, electric locomotive line, etc; The processing technology mainly involves pressure processing, such as melting, rolling, drawing, twisting/compression twisting, etc; The product is mainly used in suburban areas, rural areas, user main lines, switchgear, etc.

　　5. Electromagnetic wire (winding wire) is mainly used for various motors, instruments, etc. This type of derivative/new product belongs to the category of wires and cables, mainly due to different application scenarios, application requirements, equipment convenience, and requirements for reducing equipment costs, etc., which require the use of new materials, special materials, or changes in product structure. Using different materials such as flame-retardant cables, low smoke halogen-free/low smoke halogen-free cables, anti termite, anti mouse cables, oil resistant/cold resistant/temperature resistant cables, etc; Changing product structure, such as fire-resistant cables; Improve process requirements such as medical cables, etc; Combination products such as OPGW, etc; Convenient installation and reduced equipment costs, such as prefabricated branch cables.

　　The HYA225 * 2 * 0.5 cable specifications in the Tianlian area are complete

　　Development and Reflection on Fiber Optic Cable and Communication Cable Technology 1. Expand the transmission capacity of a single wavelength. Currently, the transmission capacity of a single wavelength has reached 40Gbit/s, and research on 160Gbit/s has begun. Transmission above 40Gbit/s will pose certain requirements for PMD in optical fibers. At the ITU-TSG15 conference in 2002, the United States proposed the introduction of a new fiber category (G.655. C) for 40Gbit/s systems and suggested in-depth exploration of some issues in PMD transmission. Perhaps in the near future, a specialized 40Gbit/s fiber type will emerge.

　　2. Realizing ultra long distance transmission and relay free transmission is the ideal for backbone transmission networks. Currently, some companies have been able to use dispersion equalization technology to achieve relay free transmission of 2000-5000km. Some companies are further improving their fiber optic specifications by adopting Raman optical amplification technology, which can greatly extend the distance of optical transmission.

　　3. To adapt to the application of DWDM technology, the 2 × 2.5Gbit/s DWDM system has been implemented, and the 64 × 2.5Gbit/s and 32 × 10Gbit/s systems are under development and have made good progress. The widespread use of DWDM systems has raised higher requirements for the nonlinear performance of optical fibers. The ITU-T standard for the nonlinear properties and testing methods of optical fibers (G.650.2) has recently been completed. Once the nonlinear testing indicators of optical fibers are clear, corresponding indicators will be proposed for the effective area of optical fibers, especially for the further improvement of the nonlinear characteristics of G.655 optical fibers.

　　The HYA225 * 2 * 0.5 cable specifications in the Tianlian area are complete

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