摘要
本文介绍了埋地钢质管道交流杂散电流的形成原因及危害,并对其测试方法、干扰程度评价指标、防护措施进行了分析讨论。比较了国内外不同标准对于交流干扰程度的评价指标,对比了交流杂散电流常见接地排流方式的适用条件及优缺点。结合现场检验实例阐述了交流干扰评价中存在的问题,希望管道检测人员以及业主对此引起足够的重视。
In this paper, the causes and hazards of AC stray current in buried steel pipes were introduced, and testing methods, evaluation criteria, protective measures of AC stray current were discussed. This paper compared the evaluation indexes of different standards at home and abroad for the degree of AC interference, and the applicable conditions and advantages and disadvantages of the common ground discharge method of AC stray current. The problems in the evaluation of AC disturbances were expounded by field test cases. It is hoped that the pipeline inspectors and the owners will pay enough attention to it.
出处
《中国特种设备安全》
2017年第10期32-34,38,共4页
China Special Equipment Safety
关键词
埋地钢质管道
交流杂散电流
检测方法
评价指标
防护措施
Buried steel pipeline AC stray current Testing method Evaluation criteria Protectivemeasures