家用和类似用途固定式电气装置的电器附件安装盒和外壳 第24部分:住宅保护装置和其他电源功耗电器的外壳的特殊要求
Boxes and enclosures for electrical accessories for household and similar fixed electrical installations—Part 24: Particular requirements for enclosures for housing protective devices and other power dissipating electrical equipment