EN 50021 : 99 COR 2000被替代
ELECTRICAL APPARATUS FOR POTENTIALLY EXPLOSIVE ATMOSPHERES - TYPE OF PROTECTION "N"
出版：European Committee for Standards - Electrical
专家解读视频
基本信息
标准编号： EN 50021 : 99 COR 2000
标准类别：Standard
出版单位：European Committee for Standards - Electrical
标准页数：0
标准简介
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, only infrequently or for a short time.
