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Normas BSI – AENOR
BS EN 60721-2-2:2013

BS EN 60721-2-2:2013

Classification of environmental conditions. Environmental conditions appearing in nature. Precipitation and wind

2013-08-31 /Definitive
Equivalencias internacionales:

EN 60721-2-2:2013

IEC 60721-2-2:2012

Relación con otras normas BSI:

Reemplaza a: BS 7527-2.2:1991

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.
Electrical equipment, Environment (working), Rainfall, Atmospheric condensation, Atmospheric disturbances, Classification systems, Transportation, Climate, Electronic equipment and components, Precipitation (atmospheric), Installation, Winds, Electrical components, Snow, Storage
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