EN 50021-1999 标准详情
- 标准号:EN 50021-1999
- 中文标题:潜在爆炸性气体环境用电器."n"型防护装置
- 英文标题:electrical apparatus for potentially explosive atmospheres, type of protection n""
- 标准类别:欧盟标准EN
- 发布日期:1999-04-01
Defines requirements for construction, testing and marking of Group II electrical apparatus with type of protection "n", meant to be used solely in areas where explosive atmospheres of gas, vapour and mist are not likely to occur, or if they do, on
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