基于0.1Hz超低频介损检测的配电电缆分析与评价  

Analysis and Evaluation of Distribution Cables Based on 0.1Hz Ultra-low Frequency Dielectric Loss Detection

作　　者：孙斌煌 杨赞峰 苏宁 庄美圆 徐志鹏 SUN Bin-huang;YANG Zan-feng;SU Ning;ZHUANG Mei-yuan;XU Zhi-peng(State Grid Quanzhou Electric Power Company,Quanzhou 362000,China)

机构地区：[1]国网泉州供电公司,福建泉州362000

出　　处：《电气开关》2020年第4期97-99,共3页Electric Switchgear

摘　　要：超低频介质损耗检测是一种判断电缆绝缘老化程度的有效手段,开展城区配电电缆检测是配电运维检修的一项重要工作。本文阐述了超低频介损的原理及评判标准,分析了一条典型的电缆检测案例,并统计了2019年度城区电缆介损检测情况。结果表明电缆运行年限的增加会导致介损合格率降低,同时对今后待测电缆的选定和老化电缆排查提供了一定的指导作用。Ultra-low frequency dielectric loss detection is an effective method to judge the aging degree of cable insulation.It is an important work for power distribution operation and maintenance to carry out testing of distribution cables in urban areas.This article describes the principle and evaluation criteria of Ultra-low frequency dielectric loss,analyzes a typical cable test case,and counts the test situation of 2019 urban cable dielectric loss.The results show that the increase of the operating life of the cable will lead to a reduction in the dielectric loss pass rate,and at the same time it will provide some guidance for the selection of the cables to be tested and investigate the aging cables.

关 键 词：超低频 介损 电缆检测 

分 类 号：TM24[一般工业技术—材料科学与工程]