Turbines and turbine sets. Measurement of emitted airborne noise. Engineering/survey method Ingestion-build-53008 Note 3: The recommendations in

Note 3: The recommendations in PD IEC/TR 61000-3-6 do not address harmonic interference phenomena in communication circuits (i

test data should be used to compare GPACM within the same configuration and not for the purpose of predicting performance in a real situation

but maybe introduced later

ISO 11120 is applicable to tubes having an opening at each end

4 General guidance on quality assurance and calibration

Turbines and turbine sets. Measurement of emitted airborne noise. Engineering/survey method Ingestion-build-53008 Note 3: The recommendations in1 Scope This document specifies methods for measuring the noise emission of a turbine or turbine set under steady state operating conditions. It specifies methods for measuring the sound pressure levels on a measurement surface enveloping a source, and for calculating the sound power level produced by the source. It gives requirements for the test environment and instrumentation, as well as techniques for obtaining the surface sound pressure level