IEC 61400-1 pdf download
IEC 61400-1 pdf download Wind turbines – Part 1: Design requirements
6.3.2.6 Extreme wind shear (EWS) Replace the number 2,5 in equations (26) and (27) to 2,5 [m/s]. (The number 2,5 in equations (26) and (27) is not dimensionless.)
7 Structural design
7.4.2 Power production plus occurrence of fault or loss of electrical network connection (DLC 2.1 – 2.4) Add, as 2 nd paragraph, the following new text: As an alternative to the specification of DLC 2.3 above and in Table 2, DLC 2.3 may instead be considered as a normal event (i.e. a partial safety factor for load of 1 ,35) to be analyzed using stochastic wind simulations (NTM – V in
