低压开关设备和控制设备组件用空外壳.一般要求

[中文适用范围]： 适用于用户安装开关设备和控制设备组件之前的空外壳（由外壳制造商提供）。本标准规定了附件的定义、分类、特性及试验要求。 [外文原描述]： Applies to empty enclosures, prior to the incorporation of switchgear and controlgear components by the user, as supplied by the enclosure manufacturer. This standard specifies definitions, classifications, characteristics and test requirements of enclosures to be used as part of switchgear and controlgear assemblies in accordance with the IEC 60439 series, the rated voltage of which does not exceed 1 000 V a.c. at frequencies not exceeding 1 000 Hz, or 1 500 V d.c. and suitable for general use for either indoor or outdoor applications. This standard does not apply to enclosures, which are covered by other specific products standards (e.g. IEC 60670). Compliance with the safety requirements of the applicable product standard is the responsibility of the final assembly manufacturer.