Wind turbines - Declaration of apparent sound power level and tonality values Ingestion-build-100580 It also sets out the

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Wind turbines - Declaration of apparent sound power level and tonality values Ingestion-build-100580 It also sets out theWhat is PD CLC TS 61400 14 Sound power level and tonality values of wind turbines? IEC 61400 series covers various aspects of wind turbines. PD CLC TS 61400 14 is one of the series of documents that provides guidelines for declaring the apparent sound power level and tonality of a batch of wind turbines. The measurement procedures for apparent sound power level and tonality are defined in IEC 61400 11. Who is PD CLC TS 61400 14 Sound power level and