IEC 60721-2-2:2012 

Classification of environmental conditions - Part 2-2: Environmental conditions appearing in nature - Precipitation and wind

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Abstract

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 first edition, published in 1988, and constitutes a technical revision. The main changes with regard to the previous edition are as follows:
- subclause Precipitation: simplified;
- data not possible to validate are removed;
- subclause Wind: text rewritten;
- Table 1 simplified and aligned with definition used by [1];
- subclause Hail: data added;
- formula changed;
- formula for impact energy added;
- subclause Snow: text changed and aligned with definitions used by [1];
- Table 3 removed;
- subclause Normal rain: text has been modified and numeric values removed;
- subclause Driving rain: text has been modified and numeric values removed;
- subclause Formation of ice: text has been modified and numeric values removed;
- subclause Drifting snow: text added;
- subclause Wind force: formula changed;
- Figure 1 to 5 removed.

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Additional information

Publication typeInternational Standard
Publication date2012-12-13
Edition2.0
Available language(s)English/French
TC/SCTC 104 - Environmental conditions, classification and methods of testrss
ICS19.040 - Environmental testing
Stability date  2020
Pages24
File size997 KB

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