SIST EN 61400-11:2013/A1:2018

Wind energy generation systems - Part 11: Acoustic noise measurement techniques (IEC 61400-11:2012/A1:2018)

This document presents measurement procedures that enable noise emissions of a wind turbine to be characterised. This involves using measurement methods appropriate to noise emission assessment at locations close to the machine, in order to avoid errors due to sound propagation, but far away enough to allow for the finite source size. The procedures described are different in some respects from those that would be adopted for noise assessment in community noise studies. They are intended to facilitate characterisation of wind turbine noise with respect to a range of wind speeds and directions. Standardisation of measurement procedures will also facilitate comparisons between different wind turbines. The procedures present methodologies that will enable the noise emissions of a single wind turbine to be characterised in a consistent and accurate manner. These procedures include the following: - location of acoustic measurement positions; - requirements for the acquisition of acoustic, meteorological, and associated wind turbine operational data; - analysis of the data obtained and the content for the data report; and - definition of specific acoustic emission parameters, and associated descriptors which are used for making environmental assessments. This International Standard is not restricted to wind turbines of a particular size or type. The procedures described in this standard allow for the thorough description of the noise emission from a wind turbine. A method for small wind turbines is described in Annex F.

Windenergieanlagen - Teil 11: Schallmessverfahren

Eoliennes - Partie 11: Techniques de mesure du bruit acoustique

Le contenu du corrigendum d'octobre 2019 a été pris en considération dans cet exemplaire.

Sistemi za proizvodnjo energije na veter - 11. del: Tehnike merjenja hrupa - Dopolnilo A1 (IEC 61400-11:2012/A1:2018)

General Information

• Status: Published
• Publication Date: 10-Sep-2018
• ICS: 17.140.20 - Noise emitted by machines and equipment
• ICS: 27.180 - Wind turbine energy systems
• Technical Committee: IEHT - Electrotechnics - Hydraulic turbins
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 22-Aug-2018
• Due Date: 27-Oct-2018
• Completion Date: 11-Sep-2018
• Ref Project: EN 61400-11:2013/A1:2018 - Wind turbines - Part 11: Acoustic noise measurement techniques

Relations

• Amends: SIST EN 61400-11:2013 - Wind turbines - Part 11: Acoustic noise measurement techniques
• Effective Date: 20-Dec-2016
• Corrected By: SIST EN 61400-11:2013/A1:2018/AC:2020 - Wind turbines - Part 11: Acoustic noise measurement techniques (IEC 61400-11:2012/A1:2018/COR1:2019)
• Effective Date: 05-Nov-2019

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 61400-11:2013/A1:2018
01-oktober-2018
Sistemi za proizvodnjo energije na veter - 11. del: Tehnike merjenja hrupa -
Dopolnilo A1 (IEC 61400-11:2012/A1:2018)
Wind energy generation systems - Part 11: Acoustic noise measurement techniques
(IEC 61400-11:2012/A1:2018)
Ta slovenski standard je istoveten z: EN 61400-11:2013/A1:2018
ICS:
17.140.20 Emisija hrupa naprav in Noise emitted by machines
opreme and equipment
27.180 Vetrne elektrarne Wind turbine energy systems
SIST EN 61400-11:2013/A1:2018 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 61400-11:2013/A1:2018

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SIST EN 61400-11:2013/A1:2018


EUROPEAN STANDARD EN 61400-11:2013/A1

NORME EUROPÉENNE

EUROPÄISCHE NORM
August 2018
ICS 27.180

English Version
Wind turbines - Part 11: Acoustic noise measurement techniques
(IEC 61400-11:2012/A1:2018)
Eoliennes - Partie 11: Techniques de mesure du bruit Windenergieanlagen - Teil 11: Schallmessverfahren
acoustique (IEC 61400-11:2012/A1:2018)
(IEC 61400-11:2012/A1:2018)
This amendment A1 modifies the European Standard EN 61400-11:2013; it was approved by CENELEC on 2018-07-20. CENELEC
members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this amendment the
status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This amendment exists in three official versions (English, French, German). A version in any other language made by translation under the
responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the same status as
the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden,
Switzerland, Turkey and the United Kingdom.



European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN 61400-11:2013/A1:2018 E

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SIST EN 61400-11:2013/A1:2018
EN 61400-11:2013/A1:2018 (E)
European foreword
The text of document 88/615/CDV, future edition 1 of IEC 61400-11:2012/A1, prepared by IEC/TC 88
"Wind energy generation systems" was submitted to the IEC-CENELEC parallel vote and approved by
CENELEC as EN 61400-11:2013/A1:2018.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2019-04-20
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2021-07-20
document have to be withdrawn
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 61400-11:2012/A1:2018 was approved by CENELEC as a
European Standard without any modification.
2

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SIST EN 61400-11:2013/A1:2018




IEC 61400-11

®


Edition 3.0 2018-06




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE
colour

inside



A MENDMENT 1

AM ENDEMENT 1





Wind turbines –

Part 11: Acoustic noise measurement techniques




Éoliennes –

Partie 11: Techniques de mesure du bruit acoustique
















INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE




ICS 27.180 ISBN 978-2-8322-5760-9




Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

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SIST EN 61400-11:2013/A1:2018
– 2 – IEC 61400-11:2012/AMD1:2018
© IEC 2018
FOREWORD
This amendment has been prepared IEC technical committee 88: Wind energy generation
systems.
The text of this amendment is based on the following documents:
CDV Report on voting
88/615/CDV 88/644A/RVC

Full information on the voting for the approval of this amendment can be found in the report
on voting indicated in the above table.
The committee has decided that the contents of this amendment and the base publication will
remain unchanged until the stability date indicated on the IEC website under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.

IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates
that it contains colours which are considered to be useful for the correct
understanding of its contents. Users should therefore print this document using a
colour printer.

_____________

INTRODUCTION to the Amendment
This amendment to IEC 61400-11:2012 addresses the situation where a measurement
consists of measurements series on different days or with substantially different conditions.
Furthermore, clarifications have been introduced on tonality analysis and reporting. Editorial
changes have been made.

6 Instrumentation
6.1.2 Equipment for the determination of the equivalent continuous A-weighted
sound pressure level
Add "relevant to this document" after "requirements".
6.1.3 Equipment for the determination of A-weighted 1/3-octave band spectra
Add, in the second sentence, "relevant to this document" after "requirements".

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SIST EN 61400-11:2013/A1:2018
IEC 61400-11:2012/AMD1:2018 – 3 –
© IEC 2018
7 Acoustic measurements and measurement procedures
7.1 Acoustic measurement positions
Add, at the end of the second paragraph after 2 %, the following new text:
The measurement distance shall be as close as possible to R . The allowed tolerance should
0
only be used where it is essential to obtain valid data and, where this is done, clear evidence
shall be reported to justify the decision made.
7.2.2 Acoustic measurement requirements
Add "(see 7.2.8)" at the end of 6th bullet of the first paragraph.
Add the following new subclause after 7.2.7:
7.2.8 Combining measurement
...