X射线检验在XLPE电缆内部损伤判断中的应用  

Application of X-Ray Examination on the Inner Damage Judgment of XLPE Cable Metal and Main Insulation

作　　者：赵子谦[1] 何平 

机构地区：[1]国网吉林省电力有限公司电力科学研究院,长春130021 [2]国网长春供电公司,长春130021

出　　处：《吉林电力》2014年第6期39-41,共3页Jilin Electric Power

摘　　要：在介绍X射线透照原理的基础上,对交联聚乙烯(XLPE)电力电缆结构及底片影像进行了分析。以电缆的内部损伤为例,根据底片影像在现场可快速准确地判定电缆的金属护套以及主绝缘的损伤程度,指出不能简单地通过外观来确定内部损伤程度,对于电缆主绝缘损伤及金属护套变形程度,可以通过底片中影像的对比以及测量来确定,此外,从事X射线检验要做好防护工作。Base on the introduction of X-Ray examination theory, the structure and radio-graphic film images of XLPE cahle have been analyzed. The damage of metal sheath and main insulation have been judged according to the film images analyses. The cable damage degree could be quickly judged on site. It has been pointed out that the inner damage degree could not only be determined by outside appearance. The images comparison and measuring could determine the damage degree of cable main insulation and the deformation degree of metal sheath. It has also been pointed out that protection should be paid attention to during X-Ray examination.

关 键 词：XLPE电缆 主绝缘 金属护套 X射线检验 

分 类 号：TM75[电气工程—电力系统及自动化]