标准摘要
[中文适用范围]： 本文件定义了ACS（施工现场装配，见3.1.101）的具体要求，适用于以下情况： - 额定电压不超过交流1000V或直流1500V的装配； - 装配中变压器的额定一次电压和额定二次电压在上述限制范围内； - 用于室内外施工现场的装配，即公众通常无法进入的临时工作场所，包括建筑施工、安装、维修、改造或拆除建筑物、土木工程、挖掘或其他类似操作； - 带外壳的可移动（半固定）或移动式装配。 制造和/或装配可以由原始制造商以外的实体进行（参见IEC 61439-1:2020的3.10.1）。 本文件不适用于单个设备和独立组件，如电机启动器、熔断器开关、电子设备等，这些应符合相关的产品标准。 本文件不适用于施工现场行政中心（办公室、衣帽间、会议室、食堂、餐厅、宿舍、厕所等）的装配。 根据本文件制造的设备提供的电气保护要求见IEC 60364-7-704。 [外文原描述]： IEC 61439-4:2023 RLV contains both the official IEC International Standard and its Redline version. The Redline version is available in English only and provides you with a quick and easy way to compare all the changes between the official IEC Standard and its previous edition. IEC 61439-4:2023 defines the specific requirements of ACS as follows: - assemblies for which the rated voltage does not exceed 1 000 V in case of AC or 1 500 V in case of DC; - assemblies where the nominal primary voltage and the nominal secondary voltage of transformers incorporated in ACS are within the limits specified above; - assemblies intended for use on construction sites, both indoors and outdoors, i.e. temporary places of work to which the public do not generally have access and where building construction, installation, repairs, alteration or demolition of property (buildings) or civil engineering (public works) or excavation or any other similar operations are carried out; - transportable (semi-fixed) or mobile ASSEMBLIES with enclosure. This second edition of IEC 61439-4 cancels and replaces the first edition published in 2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) alignment with IEC 61439-1:2020 regarding the structure and technical content, as applicable.
英文名称Low-voltage switchgear and controlgear assemblies - Part 4: Particular requirements for assemblies for construction sites (ACS)