Annex A3.1 - A-weighted 1/3-octave spectrum of a Typical 800kW-1.3MW Wind Turbine
Frequency SWL, dB(A)
25 66.5
31.5 68.8
40 72.2
50 78.9
63 78.3
80 80.6
100 84.9
125 84.9
160 87.3
200 91.2
250 90.5
315 92.5
400 92.5
500 93.4
630 94.7
800 93.8
1000 93.5
1250 93.4
1600 93.6
2000 91.5
2500 89.5
3150 87.7
4000 86.8
5000 83.5
6300 76.5
8000 69.8
10000 62.4
Note:
1) The measurement position was directly downwind of the turbine.
2) The measurement was taken at wind speed of 10m/s, which corresponded to 95% of rated power.