DIN EN 60034-2-1-2008 旋转电机.第2-1部分:通过试验测定旋转电机损耗和效率的标准方法(不包括牵引车辆用电机)
Rotating electrical machines - Part 2-1: Standard methods for determining losses and efficiency from tests (excluding machines for traction vehicles) (IEC 60034-2-1:2007); German version EN 60034-2-1:2007