EN 61400-24:2010
(Main)Wind turbines - Part 24: Lightning protection
Wind turbines - Part 24: Lightning protection
Identifies the generic problems involved in lightning protection of wind turbines; describes appropriate methods for evaluating the risk of lightning damage to wind turbines; describes and outlines suitable methods for lightning protection of wind turbine components.
Windenergieanlagen - Teil 24: Blitzschutz
Eoliennes - Partie 24: Protection contre la foudre
Vetrne turbine - 24. del: Zaščita pred delovanjem strele (IEC 61400-24:2010)
Ta mednarodni standard velja za zaščito generatorjev vetrnih turbin in sistemov na veter pred delovanjem strele. Normativno se sklicuje na splošne standarde za zaščito pred delovanjem strele za nizkonapetostne in visokonapetostne sisteme za stroje in instalacije ter za elektromagnetno skladnost(EMC). Ta standard opredeljuje okolje delovanja strele za vetrne turbine in uporabo okolja za oceno tveganja za vetrne turbine. Opredeljuje zahteve za zaščito lopatic, drugih strukturnih sestavnih delov ter električnih in nadzornih sistemov pred neposrednimi in posrednimi učinki delovanja strele. Priporočene so preskusne metode za validacijo skladnosti. Podano je vodilo o uporabi veljavne zaščite pred delovanjem strele ter industrijskih električnih in EMC standardov, vključno z ozemljitvijo. Podano je vodilo v zvezi z osebno varnostjo. Podane so smernice za statistiko in poročanje o poškodbah.
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Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2010
9HWUQHWXUELQHGHO =DãþLWDSUHGGHORYDQMHPVWUHOH ,(&
Wind turbines - Part 24: Lightning protection (IEC 61400-24:2010)
Windenergieanlagen - Teil 24: Blitzschutz (IEC 61400-24:2010)
Eoliennes - Partie 24: Protection contre la foudre (CEI 61400-24:2010)
Ta slovenski standard je istoveten z: EN 61400-24:2010
ICS:
27.180 Sistemi turbin na veter in Wind turbine systems and
drugi alternativni viri energije other alternative sources of
energy
91.120.40 =DãþLWDSUHGVWUHOR Lightning protection
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 61400-24
NORME EUROPÉENNE
July 2010
EUROPÄISCHE NORM
ICS 27.180
English version
Wind turbines -
Part 24: Lightning protection
(IEC 61400-24:2010)
Eoliennes - Windenergieanlagen -
Partie 24: Protection contre la foudre Teil 24: Blitzschutz
(CEI 61400-24:2010) (IEC 61400-24:2010)
This European Standard was approved by CENELEC on 2010-07-01. 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, Bulgaria, Croatia, Cyprus,
the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
Spain, Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Management Centre: Avenue Marnix 17, B - 1000 Brussels
© 2010 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 61400-24:2010 E
Foreword
The text of document 88/366/FDIS, future edition 1 of IEC 61400-24, prepared by IEC TC 88, Wind
turbines, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as
EN 61400-24 on 2010-07-01.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent
rights.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
(dop) 2011-04-01
national standard or by endorsement
– latest date by which the national standards conflicting
(dow) 2013-07-01
with the EN have to be withdrawn
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 61400-24:2010 was approved by CENELEC as a European
Standard without any modification.
__________
- 3 - EN 61400-24:2010
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 When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year
- - Power installations exceeding 1 kV a.c. HD 637 S1 1999
+ corr. June 2005
- - Lightning Protection Components (LPC) - EN 50164-1 -
Part 1: Requirements for connection
components
IEC 60060-1 1989 High-voltage test techniques - HD 588.1 S1 1991
Part 1: General definitions and test
requirements
IEC 60068 Series Environmental testing EN 60068 Series
IEC 60071 Series Insulation co-ordination EN 60071 Series
IEC 60071-2 1996 Insulation co-ordination - EN 60071-2 1997
Part 2: Application guide
IEC 60099-4 - Surge arresters - EN 60099-4 -
Part 4: Metal-oxide surge arresters without
gaps for a.c. systems
IEC 60099-5 - Surge arresters - EN 60099-5 -
Part 5: Selection and application
recommendations
IEC 60204-1 - Safety of machinery - Electrical equipment of EN 60204-1 -
machines -
Part 1: General requirements
IEC 60204-11 - Safety of machinery - Electrical equipment of EN 60204-11 -
machines -
Part 11: Requirements for HV equipment for
voltages above 1 000 V a.c. or 1 500 V d.c.
and not exceeding 36 kV
IEC 60243-1 - Electrical strength of insulating materials - EN 60243-1 -
Test methods -
Part 1: Tests at power frequencies
IEC 60243-3 - Electrical strength of insulating materials - EN 60243-3 -
Test methods -
Part 3: Additional requirements for 1,2/50 µs
impulse tests
IEC 60364-4-44 - Low voltage electrical installations - HD 60364-4-444 -
Part 4-44: Protection for safety - Protection
against voltage disturbances and
electromagnetic disturbances
Publication Year Title EN/HD Year
IEC 60364-5-53 2001 Electrical installations of buildings - - -
+ A1 (mod) 2002 Part 5-53: Selection and erection of electrical
equipment - Isolation, switching and control
IEC 60464-2 - Varnishes used for electrical insulation - EN 60464-2 -
Part 2: Methods of test
IEC/TS 60479-1 - Effects of current on human beings and - -
livestock -
Part 1: General aspects
IEC/TR 60479-4 - Effects of current on human beings and - -
livestock -
Part 4: Effects of lightning strokes on human
beings and livestock
IEC 60587 - Electrical insulating materials used under EN 60587 -
severe ambient conditions - Test methods for
evaluating resistance to tracking and erosion
IEC 60664-1 - Insulation coordination for equipment within EN 60664-1 -
low-voltage systems -
Part 1: Principles, requirements and tests
IEC 61000-4-5 - Electromagnetic compatibility (EMC) - EN 61000-4-5 -
Part 4-5: Testing and measurement
techniques - Surge immunity test
IEC/TR 61000-5-2 - Electromagnetic compatibility (EMC) - - -
Part 5: Installation and mitigation guidelines -
Section 2: Earthing and cabling
IEC/TS 61400-23 - Wind turbine generator systems - - -
Part 23: Full-scale structural testing of rotor
blades
IEC 61643-1 - Low-voltage surge protective devices - - -
Part 1: Surge protective devices connected to
low-voltage power distribution systems -
Requirements and tests
IEC 61643-12 - Low-voltage surge protective devices - CLC/TS 61643-12 -
Part 12: Surge protective devices connected
to low-voltage power distribution systems -
Selection and application principles
IEC 61643-21 - Low voltage surge protective devices - EN 61643-21 -
Part 21: Surge protective devices connected
to telecommunications and signalling
networks - Performance requirements and
testing methods
IEC 61643-22 - Low-voltage surge protective devices - CLC/TS 61643-22 -
Part 22: Surge protective devices connected
to telecommunications and signalling
networks - Selection and application principles
IEC 62153-4-3 - Metallic communication cable test methods - - -
Part 4-3: Electromagnetic Compatibility
(EMC) - Surface transfer impedance - Triaxial
method
IEC 62305-1 2006 Protection against lightning - EN 62305-1 2006
Part 1: General principles + corr. November 2006
IEC 62305-2 2006 Protection against lightning - EN 62305-2 2006
Part 2: Risk management + corr. November 2006
- 5 - EN 61400-24:2010
Publication Year Title EN/HD Year
IEC 62305-3 (mod) 2006 Protection against lightning - EN 62305-3 2006
- - Part 3: Physical damage to structures and + corr. September 2008
life hazard + corr. November 2006
+ A11 2009
IEC 62305-4 2006 Protection against lightning - EN 62305-4 2006
Part 4: Electrical and electronic systems + corr. November 2006
within structures
ITU-T - Resistibility of telecommunication equipment - -
Recommendation installed in a telecommunications centre to
K.20 overvoltages and overcurrents
ITU-T - Resistibility of telecommunication equipment - -
Recommendation installed in customer premises to overvoltages
K.21 and overcurrents
ITU-T - Protection of telecommunication lines using - -
Recommendation metallic symmetric conductors against
K46 lightning-induced surges
IEC 61400-24 ®
Edition 1.0 2010-06
INTERNATIONAL
STANDARD
Wind turbines –
Part 24: Lightning protection
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
XG
ICS 27.180 ISBN 978-2-88910-969-2
– 2 – 61400-24 © IEC:2010(E)
CONTENTS
FOREWORD.8
1 Scope.10
2 Normative references .10
3 Terms and definitions .12
4 Symbols and units .18
5 Abbreviations .20
6 Lightning environment for wind turbine .20
6.1 General .20
6.2 Lightning current parameters and lightning protection levels (LPL) .20
7 Lightning exposure assessment.22
7.1 General .22
7.2 Assessing the frequency of lightning affecting a wind turbine .23
7.3 Assessing the risk of damage.26
7.3.1 Basic equation.26
7.3.2 Assessment of risk components due to flashes to the wind turbine
(S1) .27
7.3.3 Assessment of the risk component due to flashes near the wind
turbine (S2) .27
7.3.4 Assessment of risk components due to flashes to a service line
connected to the wind turbine (S3) .27
7.3.5 Assessment of risk component due to flashes near a service line
connected to the wind turbine (S4) .28
8 Lightning protection of subcomponents.29
8.1 General .29
8.2 Blades.29
8.2.1 General .29
8.2.2 Requirements .29
8.2.3 Verification .29
8.2.4 Protection design considerations .30
8.2.5 Test methods.32
8.3 Nacelle and other structural components.32
8.3.1 General .32
8.3.2 Hub .33
8.3.3 Spinner.33
8.3.4 Nacelle .33
8.3.5 Tower .34
8.3.6 Testing methods .34
8.4 Mechanical drive train and yaw system.34
8.4.1 General .34
8.4.2 Bearings.35
8.4.3 Hydraulic systems .35
8.4.4 Spark gaps and sliding contacts .35
8.4.5 Testing .
...
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