高压直流系统用复合外套避雷器的耐电痕化和蚀损试验方法的研究与相关标准修订的建议

按照GB/T 22389-2008、GB/T 25083-2010有关直流避雷器标准中相应条款的要求,建立了一套直流系统用复合外套避雷器耐电痕化和蚀损试验设备。选定了5个典型产品作为研究样品,进行了一系列耐电痕化和蚀损试验,并对试验程序和方法进行了深入分析和研究。在比较GB/T 22389-2008、GB/T 25083-2010、GB 11032-2010和IEC60099-9:2012(CD)试验项目异同的基础上,建议我国应采纳IEC标准的名称和试验方法,对GB/T 22389-2008、GB/T25083-2010中的耐电痕化和蚀损试验项目进行修订,以满足我国特高压直流建设发展中对避雷器试验和检验的技术需求。

Study of Test Methods of Resistance to Tracking and Erosion of Polymer-Housed Arresters for HVDC Systems and Suggestions for Related Standard Revision

A set of test equipment of resistance to tracking and erosion of polymer-housed metal oxide surge arresters for DC systems was established according to the requirements of corresponding clauses of related DC surge arresters in standard GB/T 22389-2008 and GB/T 25083-2010.Five typical products were selected as test samples and a series of tests of resistance to tracking and erosion were performed.Test procedures and methods were analyzed and researched in-depth.It is suggested that the name and test method in IEC standards should be adopted in national standards based on the comparison of similarities and differences in this test item among GB/T 22389-2008,GB/T 25083-2010,GB 11032-2010 and IEC 60099-9:2012(CD).The test items of resistance to tracking and erosion in GB/ T 22389-2008 and GB/T 25083-2010 should be revised to meet the technical requirements of surge arresters test and inspection in China UHVDC development and construction.