DIN EN IEC 60721-3-4 VDE 0468-721-3-4:2020-05
Classification of environmental conditions
Part 3-4: Classification of groups of environmental parameters and their severities – Stationary use at non-weatherprotected locations
(IEC 60721-3-4:2019); German version EN IEC 60721-3-4:2019
Class/Status:
Standard,
valid
Released: 2020-05
VDE Art. No.: 0400386