耐低温超低损耗OPGW的研制

Development of Low Temperature and Ultra Low Loss OPGW

随着经济建设的发展,超高压输电工程推广使用越来越多,但考虑到超高压线路对人生活环境的影响,这些线路一般建于人口稀少的沙漠、戈壁滩、高海拔山区等地方。因受对通信设备供电的影响,线路通信系统要求中继通信站之间的距离越远越好,需要350km以上。因受光纤衰减的影响,常规光纤复合架空地线满足不了上述要求,为了保证通信距离,就需要在通信线路上增加拉曼放大器来增加线路中继距离。但因这类设备存在一定安全隐患,容易造成通信线路出问题,功耗大,线路运行成本高,这就需要OPGW中的光纤衰减要小,可以在不同线路使用中用放大器来实现长距离光通信,最大通信距离可达到360km左右。

With the development of economic construction,more and more UHV transmission projects are promoted and used.However,considering the impact of UHV lines on people’s living environment,these lines are generally built in desert,Gobi desert,high-altitude mountainous areas and other places with few population.Due to the impact of power supply to communication equipment,the distance between relay communication stations required by the line communication system is as far as possible,It needs more than 350km communication distance.Due to the influence of optical fiber attenuation,the conventional optical fiber composite overhead ground wire can not meet the above requirements.In order to ensure the communication distance,it is necessary to add Raman amplifi er on the communication line to increase the line relay distance.However,due to a certain potential safety hazard of such equipment,it is easy to cause problems in the communication line,high power consumption and high line operation cost It is necessary that the attenuation of optical fi ber in OPGW should be small,and the relay amplifi er can not be used in the line to realize long-distance optical communication,and the maximum communication distance can reach about 360km.