一种典型电气产品爬电距离与电气间隙能力验证样品设计

A Typical Proficiency Testing Programmes Sample Design for Electrical and Electronic Product

爬电距离和电气间隙测试是诸多电气产品安全标准的基础测试项目。本文设计了一组典型的该项目用能力验证测试样品。样品由两块印制电路板组成。方案设计中巧妙包含三个测试要点。两块样品在污染等级二和污染等级三下的爬电距离长度相同,但路径不同,既方便数理统计,又可有效避免实验人员串通试验数据。该样品可有效用于实验室能力验证测试活动和实验室内部质量控制。

Creepage distance and clearance testing are the basic testing items in the safety standards for almost all electrical and electronic products. A typical sample group is designed in this paper for the purpose of proficiency testing programmes. The sample group is composed of two kinds of circuit board. The length of the creepage distance of the two circuit boards in pollution degree 2 and 3 are the same but with different paths. This sample group includes three testing points. This sample group is designed beneficial for numerical statistics and avoiding the data complicity in the laboratory. It can be used for effective laboratory monitoring.