在电力系统中,光纤通信作为一种较理想的通信手段被广泛使用,工程中光缆纤芯的选型既要考虑近期需要又要兼顾远期发展。架空地线复合光缆(OPGW)因为在不同的气象和地形环境条件下工作可靠,光衰减系数要求小,温度系数稳定,机械、光学性能良好,且其工作寿命通常在25年以上,是工程中优先采用的光纤类型。 In the power system, optical fiber communication is widely used as an ideal means of communication. The selection of optical fiber core in a project needs to consider both the short-term needs as well as the long-term development. Due to the reliable operation under different meteorological and topographic environmental conditions, OPGW is required to have small optical attenuation coefficient, stable temperature coefficient, good mechanical and optical performance, and its working life is usually over 25 years. The preferred fiber type.