IEVref:415-03-10ID:
Language:enStatus: Standard
Term: extreme wind speed
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Definition: highest average wind speed, averaged over t sec, that is likely to be experienced within a specified time period (recurrence period) of T years

NOTE – Recurrence periods of T = 50 years and T = 1 year and averaging times of t = 3 s and t = 10 min are used in a number of standards. In popular language the less precise term “survival wind speed” is often used. In practice, however, the wind turbine generator system is designed using the extreme wind speed for design load cases.


Publication date:1999-04
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