I.S. EN 61400-11:2013&A1:2018
Current
The latest, up-to-date edition.
Wind turbines - Part 11: Acoustic noise measurement techniques (IEC 61400-11:2012/A1:2018)
Hardcopy , PDF
English
04-09-2018
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Dates of withdrawal of national standards are available from NSAI.
FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and units
5 Outline of method
6 Instrumentation
7 Acoustic measurements and measurement procedures
8 Non-acoustic measurements
10 Information to be reported
Annex A (informative) Other possible characteristics of wind turbine noise emission
and their quantification
Annex B (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
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