GB/T 20111.5-2020电气绝缘系统热评定规程第5部分:设计寿命5000h及以下的应用标准
英文:Electrical insulation systems—Procedures for thermal evaluation—Part 5: Applications with a designed life of 5000h or...
英文:Electrical insulation systems—Procedures for thermal evaluation—Part 5: Applications with a designed life of 5000h or...