不同标准对爬电距离与电气间隙测量中跨接尺寸的等效性分析

Equivalence analysis on the dimension X of creepage distance and electrical clearance measurement for different standards

为加强电气领域PTP和实验室对于爬电距离与电气间隙测量中跨接尺寸的理解,本文比较并通过实例,分析了不同标准跨接尺寸的影响因素和等效性,结论与建议如下:在今后开展的PT计划中,可按等效性,分组别引用标准,或针对灯具、信息、电气等不同的产品检测实验室,开展不同的测试项目;检测实验室在参加此类计划时,重点留意作业指导书中规定的工作条件,以便准确确定跨接尺寸。

In this paper, influencing factors and equivalence of the dimension Xfor different standards were analysed by comparing and using examples in order to strengthen comprehension of the dimension X of creepage distance and electrical clearance measurement for PTP and testing laboratory in electrical field. The results indicated that it was possible to cite standards between different groups as references according to equivalence in the future PT programs. Furthermore, different test items were carried out for lamps, information, electrical and other different product testing laboratories. Testing laboratories should pay attention to the working conditions specified in the instruction manual for accurately determine dimension X when participating in such programs.