220 kV输电线路导地线老化多维度状态评估分析

Evaluation and Analysis of Aging Multi-Dimensional State of Ground Conductor of 220 kV Transmission Line

对一起220 kV输电线路导地线运行老化状态评估过程进行了介绍,从宏观检查、X射线数字成像检测、单丝及整体拉力试验等多维度对导地线进行老化及损伤分析,实现了多维度、内外部结构相结合评估方法,为今后导地线内部损伤及老化情况分析提供很好的指导作用。

This paper introduces the aging status assessment process of ground conductor of 220 kV transmission line,carries out the aging and damage analysis of ground conductor from multiple dimensions such as macro inspection,X-ray digital imaging detection and tensile test,and implements a multi-dimensional,internal and external structure evaluation method,which provides a good guidance for the future analysis of the internal damage and aging of the ground conductor.