ДСТУ EN 61400-11:2022 Вітрові турбіни. Частина 11. Методи вимірювання акустичного шуму (EN 61400-11:2013, IDT; IEC 61400-11:2012, IDT)



ДСТУ EN 61400-11:2022
(EN 61400-11:2013, IDT; IEC 61400-11:2012, IDT)

Вітрові турбіни. Частина 11. Методи вимірювання акустичного шуму

 

 
   
 
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

Introduction

1 Scope

2 Normative references

3 Terms and definitions

4 Symbols and units

5 Outline of method

6 Instrumentation

6.1 Acoustic instruments

6.2 Non-acoustic Instruments

6.3 Traceable calibration

7 Acoustic measurements and measurement procedures

7.1 Acoustic measurement positions

7.2 Acoustic measurements

8 Non-acoustic measurements

8.1 General

8.2 Wind speed measurements

8.3 Downwind direction

8.4 Other atmospheric conditions

8.5 Rotor speed and pitch angle measurement

9 Data reduction procedures

9.1 General methodology for sound power levels and 1/3-octave band levels

9.2 Calculation of sound pressure levels

9.3 Apparent sound power levels

9.4 Apparent sound power levels with reference to wind speed in 10 m height

9.5 Tonal audibility

10 Information to be reported

10.1 General

10.2 Characterisation of the wind turbine

10.3 Physical environment

10.4 Instrumentation

10.5 Acoustic data

10.6 Non-acoustic data

10.7 Uncertainty

Annex A (informative) Other possible characteristics of wind turbine noise emission and their quantification

Annex В (informative) Assessment of turbulence intensity

Annex C (informative) Assessment of measurement uncertainty

Annex D (informative) Apparent roughness length

Annex E (informative) Characterization of a secondary wind screen

Annex F (normative) Small wind turbines

Annex G (informative) Air absorption

Bibliography