分布式光纤监测预警系统在光缆运维中的研究与应用

Research and Application of Distributed Optical Fiber Monitoring and Early Warning System in Operation and Maintenance

通过分析国网河南电力出口光缆及东西区互联光缆的现状与近年来的故障类型,文章提出一种分布式光纤监测预警系统,利用光纤分布式传感技术,当外界破坏和高温作用于被监测光缆时,引起光纤中信号发生变化,系统对变化信息进行处理,能够提前预警光缆沿线的外破、明火等安全风险。将该分布式光纤监测预警系统应用于对出口光缆的监测,能精确预警光缆外破,实时监测光缆温度,有效避免影响出口光缆安全的各类风险,全面提升出口光缆的安全水平。

This paper proposes a distributed optical fiber monitoring and early warning system by analyzing the types of faults about Henan electric power export optical cable and east-west interconnected optical cable in recent years by using fiber distributed sensing technology. When the external damage and high temperature act on the monitored optical fiber cable, the signal in the optical fiber will change, and the system can deal with the change information, forewarn the security risks such as the external breakage along the cable line, open fire and so on. The distributed optical fiber monitoring and warning system is applied to the monitoring of the outlet optical fiber cable, which can accurately warn the cable breaking out, monitor the cable temperature in real time, effectively avoid all kinds of risks affecting the safety of the outlet optical fiber cable, and improve the safety level of the export optical fiber cable in an all-round way.