IEC Acoustic Standard IEC 61400-11
IEC Acoustic Standard IEC 61400-11
IEC Acoustic Standard IEC 61400-11
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1 Scope<br />
General description and purpose for the standard<br />
“enable noise emissions of a wind turbine”<br />
“methods appropriate to noise emissions assessment at<br />
locations close to the machine, in order to avoid errors<br />
due to sound propagation, but far enough away to allow<br />
for the finite source size”<br />
“standarisation of measurement procedures will also<br />
facilitate comparisons between different wind turbines<br />
“characterise in a consistent and accurate manner”<br />
“If, in some cases, less comprehensive measurements are<br />
needed, such measurements are made according to the<br />
relevant parts of the standard”<br />
NATIONAL RENEWABLE ENERGY LABORATORY<br />
3
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