Draft Document - Electrical insulation systems - Procedures for thermal evaluation - Part 31: Applications with a designed life less than 5000 hours (IEC 112/356/CDV:2016); German version FprEN 61857-31:2016
文件草案-电气绝缘系统-热评估程序-第31部分:设计寿命小于5000小时的应用(IEC 112/356/CDV:2016);德文版FprEN 61857-31:2016