EN 61400-1:2005
(Main)Wind turbines - Part 1: Design requirements
Wind turbines - Part 1: Design requirements
Deals with safety aspects, quality assurance and engineering integrity, and specifies safety requirements for design, installation and operation of wind turbine generator systems.
Windenergieanlagen - Teil 1: Auslegungsanforderungen
Eoliennes - Partie 1: Exigences de conception
Traite des aspects relatifs à la sécurité, à l'assurance de la qualité et à l'intégrité, et spécifie les prescriptions de sécurité, de la conception, de l'installation et de l'exploitation des aérogénérateurs.
Vetrne turbine – 1. del: Zahteve za načrtovanje (IEC 61400-1:2005)
Ta del IEC 61400 določa osnovne zahteve za načrtovanje, da se zagotovi neoporečnost strojegradnje vetrnih turbin. Njegov namen je zagotoviti primerno raven varstva pred škodo, ki jo lahko povzročijo vse nevarnosti med načrtovano življenjsko dobo. Ta standard zadeva vse podsisteme vetrnih turbin, kot so mehanizmi nadzora in varovanja, notranji električni sistemi, mehanski sistemi in podporne strukture. Ta standard velja za vetrne turbine vseh velikosti. Za majhne vetrne turbine se lahko uporabi IEC 61400-2. Ta standard se uporablja skupaj s primernimi standardi IEC in ISO, omenjenimi v klavzuli 2.
General Information
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EUROPEAN STANDARD EN 61400-1
NORME EUROPÉENNE
EUROPÄISCHE NORM November 2005
ICS 27.180 Supersedes EN 61400-1:2004
English version
Wind turbines
Part 1: Design requirements
(IEC 61400-1:2005)
Eoliennes Windenergieanlagen
Partie 1: Exigences de conception Teil 1: Auslegungsanforderungen
(CEI 61400-1:2005) (IEC 61400-1:2005)
This European Standard was approved by CENELEC on 2005-10-01. CENELEC members are bound to
comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard 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 Central Secretariat or to any CENELEC member.
This European Standard 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 Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Cyprus, Czech
Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden,
Switzerland and United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: rue de Stassart 35, B - 1050 Brussels
© 2005 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61400-1:2005 E
Foreword
The text of document 88/228/FDIS, future edition 3 of IEC 61400-1, prepared by IEC TC 88, Wind
turbines, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as
EN 61400-1 on 2005-10-01.
This European Standard supersedes EN 61400-1:2004.
The main changes with respect to EN 61400-1:2004 are listed below:
– the title has been changed to “Design requirements” in order to reflect that the standard presents
safety requirements rather than requirements for safety or protection of personnel;
– wind turbine class designations have been adjusted and now refer to reference wind speed and
expected value of turbulence intensities only;
– turbulence models have been expanded and include an extreme turbulence model;
– gust models have been adjusted and simplified;
– design load cases have been rearranged and amended;
– the inclusion of turbulence simulations in the load calculations is emphasized and a scheme for
extreme load extrapolation has been specified;
– the partial safety factors for loads have been adjusted and simplified;
– the partial safety factors for materials have been amended and specified in terms of material
types and component classes;
– the requirements for the control and protection system have been amended and clarified in terms
of functional characteristics;
– a new clause on assessment of structural and electrical compatibility has been introduced with
detailed requirements for assessment, including information on complex terrain, earthquakes and
wind farm wake effects.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2006-07-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2006-11-01
Annex ZA has been added by CENELEC.
__________
- 3 - EN 61400-1:2005
Endorsement notice
The text of the International Standard IEC 61400-1:2005 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standards
indicated:
IEC 60034 NOTE Harmonized in EN 60034 series (not modified).
IEC 60038 NOTE Harmonized as HD 472 S1:1989 (modified).
IEC 60146 NOTE Harmonized in EN 60146 series (not modified).
IEC 60173 NOTE Harmonized as HD 27 S1:1978 (not modified).
IEC 60227 NOTE The HD 21 series is related to, but not directly equivalent with the
IEC 60227 series.
IEC 60245 NOTE The HD 22 series is related to, but not directly equivalent with the
IEC 60245 series.
IEC 60269 NOTE Harmonized in EN/HD 60269 series (modified).
IEC 60439 NOTE Harmonized in EN 60439 series (not modified).
IEC 60446 NOTE Harmonized as EN 60446:1999 (not modified).
IEC 60529 NOTE Harmonized as EN 60529:1991 (not modified).
IEC 60898 NOTE Harmonized in EN 60898 series (modified).
IEC 61310-1 NOTE Harmonized as EN 61310-1:1995 (not modified).
IEC 61310-2 NOTE Harmonized as EN 61310-2:1995 (not modified).
__________
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
NOTE Where an international publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
Publication Year Title EN/HD Year
IEC 60204-1 1997 Safety of machinery - Electrical EN 60204-1 1997
equipment of machines + corr. September 1998
Part 1: General requirements
IEC 60204-11 2000 Part 11: Requirements for HV equipment EN 60204-11 2000
for voltages above 1 000 V a.c. or
1 500 V d.c. and not exceeding 36 kV
IEC 60364 Series Electrical installations of buildings EN 60364 Series
(mod) HD 60364 Series
HD 384 Series
1)
IEC 60721-2-1 1982 Classification of environmental conditions HD 478.2.1 S1 1989
Part 2: Environmental conditions
appearing in nature - Temperature and
humidity
IEC 61000-6-1 1997 Electromagnetic compatibility (EMC) EN 61000-6-1 2001
(mod) Part 6-1: Generic standards - Immunity
for residential, commercial and light-
industrial environments
2)
IEC 61000-6-2 1999 Part 6-2: Generic standards - Immunity EN 61000-6-2 2001
(mod) for industrial environments
IEC 61000-6-4 1997 Part 6-4: Generic standards - Emission EN 61000-6-4 2001
(mod) standard for industrial environments
IEC 61024-1 1990 Protection of structures against lightning - -
Part 1: General principles
IEC 61312-1 1995 Protection against lightning - -
electromagnetic impulse
Part 1: General principles
IEC 61400-21 2001 Wind turbine generator systems EN 61400-21 2002
Part 21: Measurement and assessment of
power quality characteristics of grid
connected wind turbines
1)
HD 478.2.1 S1 includes A1:1987 to IEC 60721-2-1:1982.
2)
EN 61000-6-2:2001 is superseded by EN 61000-6-2:2005, which is based on IEC 61000-6-2:2005.
- 5 - EN 61400-1:2005
Publication Year Title EN/HD Year
IEC/TR 61400-24 2002 Part 24: Lightning protection - -
ISO 76 1987 Rolling bearings - Static load ratings - -
ISO 281 1990 Rolling bearings - Dynamic load ratings - -
and rating life
ISO 2394 1998 General principles on reliability for - -
structures
ISO 2533 1975 Standard atmosphere - -
ISO 4354 1997 Wind actions on structures - -
ISO 6336-1 1996 Calculation of load capacity of spur and - -
helical gears
Part 1: Basic principles, introduction and
general influence factors
ISO 9001 2000 Quality management systems - EN ISO 9001 2000
Requirements
INTERNATIONAL IEC
STANDARD 61400-1
Third edition
2005-08
Wind turbines –
Part 1:
Design requirements
IEC 2005 Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
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Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
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– 2 – 61400-1 IEC:2005
CONTENTS
FOREWORD.5
INTRODUCTION.7
1 Scope.8
2 Normative references.8
3 Terms and definitions .9
4 Symbols and abbreviated terms .17
4.1 Symbols and units .17
4.2 Abbreviations.19
5 Principal elements .19
5.1 General .19
5.2 Design methods.19
5.3 Safety classes .20
5.4 Quality assurance.20
5.5 Wind turbine markings .20
6 External conditions .21
6.1 General .21
6.2 Wind turbine classes .21
6.3 Wind conditions .22
6.4 Other environmental conditions.31
6.5 Electrical power network conditions.32
7 Structural design.33
7.1 General .33
7.2 Design methodology .33
7.3 Loads .33
7.4 Design situations and load cases .34
7.5 Load calculations.39
7.6 Ultimate limit state analysis.39
8 Control and protection system.45
8.1 General .45
8.2 Control functions .45
8.3 Protection functions .46
8.4 Braking system .47
9 Mechanical systems.47
9.1 General .47
9.2 Errors of fitting.48
9.3 Hydraulic or pneumatic systems.48
9.4 Main gearbox.48
9.5 Yaw system .49
9.6 Pitch system .49
9.7 Protection function mechanical brakes .49
9.8 Rolling bearings.49
61400-1 IEC:2005 − 3 −
10 Electrical system.50
10.1 General .50
10.2 General requirements for the electrical system .50
10.3 Protective devices.50
10.4 Disconnect devices .
...
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