IEC 60721-2-2:2012 presents fundamental properties, quantities for characterization, and a classification of environmental conditions dependent on precipitation and wind relevant for electrotechnical products. This second edition cancels and replaces the
DS/EN 60721-2-2:2013 history
2013DS/EN 60721-2-2:2013 Classification of environmental conditions - Part 2-2: Environmental conditions appearing in nature - Precipitation and wind
1990DS/IEC 721-2-2:1990 Classification of environmental conditions. Part 2: Environmental conditions appearing in nature. Precipitation and wind