摘要
文中比较了国内外在动态直流杂散电流干扰下管道阴极保护的评价标准,分析了断电电位测试方法的适用性,对受地铁杂散电流干扰的管道开展现场测试,结果表明:AS 2832.1—2015标准可操作性比较强,采用数据记录仪和试片结合的方式测试断电电位是可行的,对于存在地铁动态直流杂散电流干扰导致管道保护电位不达标的情况,应采取干扰防护措施。
This article compared the evaluation criteria for cathodic protection of pipelines under dynamic DC stray current interference at home and abroad,analyzed the applicability of the switch⁃off potential test method,and field tests were carried out on a pipeline that was disturbed by the subway stray current.The results show that the standard of AS 2832.1—2015 is more op⁃erable.It is feasible to use the combination of data logger and test piece to test the switch⁃off potential.For the situation where the pipeline protection potential is not up to standard due to the subway dynamic DC stray current interference,protection measures should be taken.
作者
郭艳伟
GUO Yan-wei(Guangdong Institute of Special Equipment Inspection and Research,Foshan 528000,China)
出处
《管道技术与设备》
CAS
2022年第2期47-50,58,共5页
Pipeline Technique and Equipment
关键词
地铁杂散电流
埋地管道
评价标准
断电电位
subway stray current
buried pipeline
evaluation standard
switch⁃off potential
