家用和类似用途固定电气设施附件外壳.第24部分:家庭保护装置和类似耗电装置外壳的特殊要求

[中文适用范围]： IEC 60670的本部分适用于额定电压不超过400 V且总输入负载电流不超过125 A的家用和类似固定电气设备的空外壳及其部件。 [外文原描述]： This part of IEC 60670 applies to empty enclosures and parts of them for electrical accessories intended to be used with a rated voltage not exceeding 400 V and a total incoming load current not exceeding 125 A for household and similar fixed electrical installations, where a maximum capability to dissipate power in normal use is declared by the manufacturer. These enclosures are intended for housing protective devices and devices with or without power dissipation. They are intended to be installed where the prospective short circuit current does not exceed 10 kA unless they are protected by current limiting protective devices with a cut-off current not exceeding 17 kA.