IEC 60034-19:20 14适用于华盛顿特区。额定功率为1 kW及以上、使用直流整流器供电的机器。公共汽车或其他华盛顿。来源，并提供标准化方法，旨在确定传统和整流器馈电直流的特征量。机器。这些方法补充了IEC 60034-1和IEC 60034-2-1中的要求。与上一版相比，主要变化如下: -黑带测试程序的描述已经详细和澄清； -增加了空载和负载条件下磁化曲线的测量程序。

IEC 60034-19:2014 applies to d.c. machines rated 1 kW and above operating on rectifier-fed power supplies, d.c. buses or other d.c. sources and provides standardized methods intended to determine characteristic quantities for conventional and rectifier-fed d.c. machines. These methods supplement the requirements in IEC 60034-1 and IEC 60034-2-1. The main changes with regard to the previous edition are as follows:
- description of the procedure for black band testing has been detailed and clarified;
- procedures for measurement of the magnetization curves under no-load and load conditions have been added.