地埋光缆雷击事件减轻策略  

Mitigation strategies for lightning strikes on buried optical cabless

作　　者：瞿军 陈向军 QU JUN;CHEN XIANGJUN(Intelligent Cloud Network Dispatching Operation Center of China Telecom Xiaogan Branch,Xiaogan Hubei 432100,China;China Telecom Xiaogan Branch Yunzhongtai,Xiaogan Hubei 432100,China)

机构地区：[1]中国电信股份有限公司孝感分公司智能云网调度运营中心,湖北孝感432100 [2]中国电信股份有限公司孝感分公司云中台,湖北孝感432100

出　　处：《长江信息通信》2023年第9期191-194,共4页Changjiang Information & Communications

摘　　要：在日常维护工作中,地埋光缆遭雷击是小概率事件,但是发生后会对光缆的安全运行会造成严重的影响。光纤通信抗电磁干扰能力强并且保密性好,但由于地埋光缆内存在加强芯、护套以及铠装层等金属构件,而金属构件光缆与电缆一样,也会遭受雷电的侵害。本文分析了雷电入侵光缆线路的直接和间接途径,通过一次干线光缆雷击障碍点的查找处理过程,对故障原因进行了分析,针对工程设计中防雷措施的不足,进行深入的研究和探讨,提出了地埋光缆的防雷措施,降低地埋光缆受雷击的几率和损失。In daily maintenance work,lightning strikes on buried optical cables are a low probability event,but their occurrence can have a serious impact on the safe operation of the cables.Fiber optic communication has strong electromagnetic interference resistance and good confidentiality,but due to the presence of metal components such as reinforced cores,sheaths,and armor layers inside buried optical cables,metal components such as optical cables can also be subject to lightning damage.This article analyzes the direct and indirect ways of lightning intrusion into optical cable lines.Through the process ofidentifying and handling lightning strike obstacles in a trunk optical cable,the cause ofthe fault is analyzed.In response to the shortcomings oflightning protection measures in engineering design,in-depth research and exploration are conducted,and lightning protection measures for buried optical cables are proposed to reduce the probability and loss of lightning strikes on buried optical cables.

关 键 词：通信 地埋光缆 防雷 

分 类 号：F62[经济管理—产业经济]