
Classification of environmental conditions – Part 3-3: Classification of groups of environmental parameters and their severities – Stationary use at weatherprotected locations
出版:International Electrotechnical Committee

專家解讀視頻
This part of IEC 60721 classifies groups of environmental parameters and their severities to which products are subjected when installed for stationary use at weatherprotected locations.
BS EN IEC 60721-3-3:2019 - Identical
DS/EN IEC 60721-3-3:2019 - Identical
PN-EN IEC 60721-3-3 : 2019-10 - Identical
UNE-EN IEC 60721-3-3:2019 - Identical
NEN-EN-IEC 60721-3-3:2019 - Identical
I.S. EN IEC 60721-3-3:2019 - Identical
UNE-EN IEC 60721-3-3:2019 - Identical
DS/EN IEC 60721-3-3:2019 - Identical
PN-EN IEC 60721-3-3 : 2019-10 - Identical
I.S. EN IEC 60721-3-3:2019 - Identical
BS EN IEC 60721-3-3:2019 - Identical
NEN-EN-IEC 60721-3-3:2019 - Identical