低压开关设备和控制设备组合装置.第4部分:施工现场用组合装置(ACS)的特殊要求

[中文适用范围]： 用以下内容取代后三段： 本部分适用于建筑工地中使用的型式试验成套设备(丁丁A)，此建筑工地是指公众一般不进入的临 时』：作场地，以及建筑施工、安装、修理、改建、地产(建筑物)拆除、土木工程(公共建筑)、挖掘或任何其 他类似的工作场地。此类成套设备可以是可运输式酌(半固定式的)或可迁移式的。 本部分不适用于在施工场地后勤行政区域(办公室、更衣室、会议室、小卖部、餐厅、宿舍、卫生间等) 使用的成套设备。 注1：安装在ACS中的变压器的标称电压在本部分规定的范围内。 注2：按照本部分制造的没备所提供的电击防护符合GB 16895．?—2000的要求。 注3：考虑到供电和／或配电网的特性以及相关的安装要求，本部分町以按照制造商与用户的协议作为部分型式试 验成套设备的指南。 [外文原描述]： Applies to type-tested ASSEMBLIES (TTA) intended for use on construction sites, 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. These ASSEMBLIES may be transportable (semi-fixed) or mobile. This standard does not apply to ASSEMBLIES for use in the administrative centres of construction sites (offices, cloakrooms, ASSEMBLY rooms, canteens, restaurants, dormitories, toilets, etc.). The nominal primary voltage and the nominal secondary voltage of transformers incorporated in ACS shall be within the limits specified in IEC 60439-1. Requirements for electrical protection provided by equipment manufactured according to this International Standard shall comply with the requirements given in IEC 60364-7-704. NOTE: This standard may be used as a guide to partially type-tested ASSEMBLIES (PTTA) constructed according to agreement between manufacturer and user taking into account the nature of supply and/or distribution network and relevant installation requirements. The following major changes with respect to edition 1 (including amendments 1 and 2) have been incorporated: - introduction of the definition for "rated current of ACS"; - replacement of classification based on the rated current of ACS by classification based on the function as assigned by the manufacturer; - amended requirements for the protection of socket-outlets with reference to the more comprehensive requirements of IEC 60364-7-704; - introduction of common requirements for all types of ACS.