
CLASSIFICATION OF ENVIRONMENTAL CONDITIONS - PART 2-1: ENVIRONMENTAL CONDITIONS APPEARING IN NATURE - TEMPERATURE AND HUMIDITY (IEC 60721-2-1:2013)
出版:Verband Deutscher Elektrotechniker

专家解读视频
IEC 60721-2-1 : 2.0 - Identical
EN 60721-2-1 : 2014 - Identical
DIN EN 60721-2-1 : 2015 - Corresponds
DIN EN 60721-2-1 : 2015 - Corresponds
EN 60721-2-1:2014 - Identical