Boxes and enclosures for electrical accessories for household and similar fixed electrical installations—Part 21:Particular requirements for boxes and enclosures with provision for suspension means
IDT IEC 60670-21:2004
全国电器附件标准化技术委员会(SAC/TC 67)
GB 17466.1的本章增加下述内容后适用：
本部分适用于装有悬吊装置的安装盒和外壳。
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