Electrical insulation systems - Procedures for short time thermal evaluation - Part 31: Applications with a designed life of 5 000 h or less
电气绝缘系统 - 短时间热评估程序 - 第31部分:设计寿命为5 000 h或更短的应用
IEC 61857-31:2017(E) establishes an EIS evaluation for applications with a designed life of 5 000 h or less. This test method follows the procedures of IEC 60505 and is modified based on the range of designed life.