Communication cable and fiber optic cable technology analysis

Telecommunication cables are cables for transmitting telecommunication information such as telephone, telegraph and television. Compared with overhead communication open wires, communication cables have the advantages of high confidentiality, high reliability, high transmission quality, multiple multiplexing, and long service life. Although communication cables have a greater attenuation, but due to the development of booster technology, this shortcoming is no longer the main obstacle to the development of communication cable lines. Compared with power cables, communication cables are characterized by a higher frequency of transmitted current, while the voltage, current and power are generally smaller. Communication cables generally require attenuation, distortion and mutual interference between the circuits to be small, and can withstand a variety of external electromagnetic interference. The direction of technological development of communication cables is: to further improve the transmission frequency of the cable, for which it is necessary to vigorously carry out technological innovation, the use of new technologies and advanced equipment, in order to improve the uniformity of the cable structure, stability and process precision; the use of plastic insulation structure to improve the shares, mechanical and moisture resistance, such as the use of polyethylene, polypropylene or other new materials; to promote the use of aluminum conductors and aluminum sheaths, in order to economize on the use of metal Sheath, the last one or two decades optical fiber has been used in communication cables.

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