GB-3836.7-2004 爆炸性气体环境用电气设备 第7部分：充砂型“ｑ”

ICS29.260.20K35荡黯中华人民共和国国家标准GB3836.7-2004/IEC60079-5:1997代替GB3836.7-1987爆炸性气体环境用电气设备第7部分:充砂型“ql}Electricalapparatusforexplosivegasatmosphere-Part7:Powerfillingq(IEC60079-5:1997，Electricalapparatusforexplosivegasatmospheres-Part5:Powderfillingq,IDT)2004-05-14发布2005-02-01实施中华人民共和国国家质量监督检验检疫总局中国国家标准化管理委员会发布GB3836.7-2004/IEC60079-5:1997目次前言··················································································································⋯⋯I1范围···············································································································⋯⋯12规范性引用文件···············································································⋯⋯，..⋯13术语和定义·····································································································⋯⋯14结构要求·······································································································⋯⋯24.1外壳····························，····················，················································，·······