浅谈光纤复合架空地线光缆在110 kV架空输电线路中的应用  

Study on Application of OPGW Optical Cable in 110 kV Overhead Transmission Line

作　　者：王小燕 东国忠 东桂花 WANG Xiaoyan;DONG Guozhong;DONG Guihua(Economic and Technical Research Institute of State Grid Qinghai Electric Power Company,Xining,Qinghai 810008,China;Ultra-high Voltage Branch of State Grid Xizang Electric Power Company,Lhasa,Xizang 850001,China)

机构地区：[1]国网青海省电力公司经济技术研究院,青海西宁810008 [2]国网西藏电力公司超高压分公司,西藏拉萨850001

出　　处：《山西电力》2024年第1期17-19,共3页Shanxi Electric Power

摘　　要：光纤复合架空地线光缆作为一种兼具通信和地线功能的电力特种光缆在电网工程中大量应用。目前,电网新建110 kV输电线路工程都会优先选用光纤复合架空地线光缆作为通信线路光缆,由于光纤复合架空地线光缆有别于之前广泛应用的全介质自承式光缆,在工程设计时需考虑其电气性能和机械性能及其他方面性能,以保证在施工期间及投运之后安全、可靠。基于此,从光纤复合架空地线光缆的选型原则、热稳定计算、弧垂特性、长度计算、三点接地等方面阐述了光纤复合架空地线光缆在110 kV架空输电线路中的应用,希望对工程设计有一定的借鉴作用。Optical fiber composite overhead ground wire(OPGW)optical cable as a special power cable with both communication and ground functions is widely used in power grid engineering.At present,OPGW optical cable is preferred as the communication line optical cable in the new construction of 110 kV power grid transmission line project.As OPGW is different from the all-dielectric self-supporting optical cable(ADSS)widely used before,its electrical and mechanical properties and other aspects should be considered in the engineering design to ensure the safety and reliability during construction and after operation.Based on this,the application of OPGW cable wire in 110 kV overhead transmission line is described from the selection principle,thermal stability calculation,sag characteristics,length calculation and three-point grounding and it is hoped that it can provide certain reference for engineering design.

关 键 词：光纤复合架空地线光缆 短路电流容量 弧垂 三点接地 

分 类 号：TM75[电气工程—电力系统及自动化]