HYAT5380 * 2 * 0.9 cable price discount in Tianlian region

Description :

　　Classification and application fields of wires and cables: 1. What are the types of commonly used wires and cables according to their purposes? Answer: According to their purposes, they can be divided into bare wires, insulated wires, heat-resistant wires, shielded wires, power cables, control cables, communication cables, RF cables, etc.

　　2. What are the types of insulated wires? Answer: There are several types of insulated wires commonly used, including polyvinyl chloride insulated wires, polyvinyl chloride insulated flexible wires, nitrile polyvinyl chloride mixture insulated flexible wires, rubber insulated wires, agricultural underground buried aluminum core plastic insulated wires, rubber insulated cotton yarn textile flexible wires, polyvinyl chloride insulated nylon sheathed wires, and polyvinyl chloride insulated flexible wires for power and lighting.

　　3. What occasions are cable trays suitable for? Answer: Cable trays are suitable for overhead laying of power cables and control cables indoors and outdoors in general industrial and mining enterprises. They can also be used for indoor and outdoor installation in telecommunications, broadcasting and television departments.

　　4. What are the cable accessories? Answer: Common electrical accessories include cable terminal junction boxes, cable intermediate junction boxes, connecting pipes and terminals, steel plate wiring troughs, cable trays, etc.

　　5. What is a cable intermediate joint? Answer: The device that connects the conductors, insulation shielding layers, and protective layers of cables to connect cable lines is called a cable intermediate joint.

　　HYAT5380 * 2 * 0.9 cable price discount in Tianlian region

　　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.

　　HYAT5380 * 2 * 0.9 cable price discount in Tianlian region

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