适用于IEC 60349涵盖的所有具有圆柱形换向器的机器。它完成了关于减刑评估标准、应进行观察的测试定义、建议用于规范这些观察的规范的出版物。具有技术报告的状态。

Applies to all machines covered by IEC 60349 and having cylindrical commutators. It completes that publication as regards the criteria for assessment of commutation, the definition of the tests during which observations shall be made, the code recommended for the specification of these observations. Has the status of a technical report.