IEC 61439的本部分规定了电源开关设备和 控制设备组件（本文件中简称为“PSC组件”，见3.1.101）如下: •额定电压不超过1000 V AC或1500 V DC的组件为输入电源或非输入电源的标称频率设计的组件 超过1000赫兹；注1高于1 kHz的频率被视为高频，另见IEC 60664-1:2007，5.3.3.2.5，以考虑绝缘协调的其他限制。 •用于室内和室外应用的组件带或不带外壳的固定或移动组件用于发电、传输、分配和转换电能的组件，以及用于控制消耗电能的设备和相关数据处理的组件在满足其他相关具体要求的情况下，为特殊使用条件（如船舶和轨道车辆）设计的组件； 注2:IEC 60092-302-2涵盖了船上组件的补充要求。购买本文件时可获得的所有当前修订均包含在购买本文件中。

This part of IEC 61439 defines the specific requirements for the power switchgear and controlgear assembly (abbreviated 'PSC-assembly' throughout this document see 3.1.101) as follows: • assemblies for which the rated voltage does not exceed 1 000 V AC or 1 500 V DC;• assemblies designed for a nominal frequency of the incoming supply or supplies not exceeding 1 000 Hz;NOTE 1Frequencies above 1 kHz are considered as high frequencies, see also IEC 60664-1:2007, 5.3.3.2.5 to take into account additional constraints to insulation coordination. • assemblies intended for indoor and outdoor applications;• stationary or movable assemblies with or without enclosures;• assemblies intended for use in connection with the generation, transmission, distribution and conversion of electrical energy, and for the control of equipment consuming electrical energy and for associated data processing;• assemblies designed for use under special service conditions, for example in ships and in rail vehicles, provided that the other relevant specific requirements are complied with;NOTE 2Supplementary requirements for assemblies in ships are covered by IEC 60092-302-2.All current amendments available at time of purchase are included with the purchase of this document.