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OPGW光缆(光纤复合架空地线光缆)作为电力通信信号传输的物理平台,承担着各变电站间继电保护、调度自动化等重要业务的传输,其可靠性运行直接影响到电网的安全运行水平。从长期的运行数据分析发现,OPGW光缆在变电站构架引下的保护套管处是一个较为常见的故障点,而冬季是它的高发期,表现为纤芯中断或衰耗增大,有时晚上告警白天恢复,给故障判断带来困惑。通过进一步的观察分析,发现这主要与OPGW
As a physical platform for transmission of power and communication signals, OPGW optical cable (optical fiber composite overhead ground wire cable) undertakes the transmission of important services such as relay protection and dispatching automation among substations. Its reliability operation directly affects the safe operation of the power grid. From the long-term operational data analysis found that OPGW fiber optic cable in the substation structure under the protection of the casing is a more common point of failure, while the winter is its high-fat period, the performance of the core interrupt or attenuation increases, and sometimes at night alarm Recovery during the day, bring trouble to judgment. Through further observation and analysis, found that this is mainly with OPGW