EN IEC 61897:2020
(Main)Overhead lines - Requirements and tests for Aeolian vibration dampers
Overhead lines - Requirements and tests for Aeolian vibration dampers
IEC 61897:2020 is available as IEC 61897:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 61897:2020 applies to aeolian vibration dampers intended for single conductors or earth wires or conductor bundles where dampers are directly attached to each subconductor. The purchaser may adopt part(s) of this document when specifying requirements for cables different from those mentioned above (e.g. optical ground wires (OPGW), all dielectric self-supporting optical cables (ADSS)). In some cases, test procedures and test values are left to agreement between the purchaser and the supplier and are stated in the procurement contract. Annex A lists the minimum technical details to be agreed between purchaser and supplier. Throughout this document, the word “conductor” is used when the test applies to dampers for conductors or earth wires. This second edition cancels and replaces the first edition published in 1998. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) Consider, in addition to Stockbridge type aeolian vibration dampers, also spiral aeolian vibration dampers and elastomeric aeolian vibration dampers. b) Consider the application of dampers on high temperature conductors, specifying additional high temperature tests in clamp slip tests. c) Simplify the procedure of the damper effectiveness evaluation. d) Introduce test at low temperature on fastener components such as break away bolts and conical spring washers. e) Include figures showing the test arrangements for the main mechanical tests. Key words: Overhead Lines, Aeolian Vibration Dampers
Freileitungen – Anforderungen und Prüfungen für Schwingungsdämpfer
Lignes aériennes - Exigences et essais applicables aux amortisseurs de vibrations éoliennes
IEC 61897:2020 est disponible sous forme de IEC 61897:2020 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente. IEC 61897:2020 s'applique aux amortisseurs de vibrations éoliennes pour conducteurs uniques ou câbles de garde, ou aux faisceaux de conducteurs lorsque les amortisseurs sont directement reliés à chaque sous-conducteur. L'acheteur peut adopter un ou plusieurs fragments du présent document lors de la spécification d'exigences concernant des câbles différents de ceux mentionnés ci-dessus, par exemple les câbles de garde optiques (OPGW, Optical Ground Wire) ou les câbles optiques autoporteurs entièrement diélectriques (ADSS, All Dielectric Self-Supporting). Dans certains cas, les procédures et valeurs d'essai sont convenues entre l'acheteur et le fournisseur et sont indiquées dans le contrat d'approvisionnement. L'annexe A contient les informations techniques minimales à convenir entre l'acheteur et le fournisseur. Dans le cadre du présent document, le mot "conducteur" est utilisé lorsque l'essai s'applique aux amortisseurs pour conducteurs ou câbles de garde.
Nadzemni vodi - Zahteve in preskusi za dušilnike vetrnih vibracij (IEC 61897:2020)
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-januar-2021
Nadomešča:
SIST EN 61897:1999
Nadzemni vodi - Zahteve in preskusi za dušilnike vetrnih vibracij (IEC 61897:2020)
Overhead lines - Requirements and tests for Aeolian vibration dampers (IEC
61897:2020)
Freileitungen - Anforderungen und Prüfungen für Schwingungsdämpfer (IEC
61897:2020)
Lignes aériennes - Exigences et essais applicables aux amortisseurs de vibrations
éoliennes (IEC 61897:2020)
Ta slovenski standard je istoveten z: EN IEC 61897:2020
ICS:
29.240.20 Daljnovodi Power transmission and
distribution lines
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 61897
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2020
ICS 29.240.20 Supersedes EN 61897:1998 and all of its amendments
and corrigenda (if any)
English Version
Overhead lines - Requirements and tests for Aeolian vibration
dampers
(IEC 61897:2020)
Lignes aériennes - Exigences et essais applicables aux Freileitungen - Anforderungen und Prüfungen für
amortisseurs de vibrations éoliennes Schwingungsdämpfer
(IEC 61897:2020) (IEC 61897:2020)
This European Standard was approved by CENELEC on 2020-04-07. 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 CEN-CENELEC
Management Centre 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 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, 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
© 2020 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 61897:2020 E
European foreword
The text of document 11/266/FDIS, future edition 2 of IEC 61897, prepared by IEC/TC 11 "Overhead
lines" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2021-01-07
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2023-04-07
document have to be withdrawn
This document supersedes EN 61897:1998 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Endorsement notice
The text of the International Standard IEC 61897:2020 was approved by CENELEC as a European
Standard without any modification.
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 1 Where an International Publication has been modified by common modifications, indicated by (mod), the relevant
EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here:
www.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60050-466 1990 International Electrotechnical Vocabulary. - -
Chapter 466: Overhead lines
IEC 60888 1987 Zinc-coated steel wires for stranded - -
conductors
IEC 61284 1997 Overhead lines - Requirements and tests EN 61284 1997
for fittings
IEC 61854 - Overhead lines - Requirements and tests - -
for spacers
IEC 62567 2013 Overhead lines - Methods for testing self- EN 62567 2013
damping characteristics of conductors
ISO 1461 2009 Hot dip galvanized coatings on fabricated EN ISO 1461 2009
iron and steel articles - Specifications and
test methods
ISO 2859-1 1999 Sampling procedures for inspection by - -
attributes - Part 1: Sampling schemes
indexed by acceptance quality limit (AQL)
for lot-by-lot inspection
+ A1 2011 - -
ISO 2859-2 1985 Sampling procedures for inspection by - -
attributes - Part 2: Sampling plans
indexed by limiting quality (LQ) for
isolated lot inspection
ISO 3951-1 2013 Sampling procedures for inspection by - -
variables - Part 1: Specification for single
sampling plans indexed by acceptance
quality limit (AQL) for lot-by-lot inspection
for a single quality characteristic and a
single AQL
ISO 3951-2 2013 Sampling procedures for inspection by - -
variables - Part 2: General specification
for single sampling plans indexed by
acceptance quality limit (AQL) for lot-by-
lot inspection of independent quality
characteristics
ISO 9001 2015 Quality management systems - EN ISO 9001 2015
Requirements
IEC 61897 ®
Edition 2.0 2020-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Overhead lines – Requirements and tests for aeolian vibration dampers
Lignes aériennes – Exigences et essais applicables aux amortisseurs
de vibrations éoliennes
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.240.20 ISBN 978-2-8322-7800-0
– 2 – IEC 61897:2020 © IEC 2020
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 General requirements . 7
4.1 Design . 7
4.2 Materials . 8
4.3 Mass, dimensions and tolerances . 8
4.4 Protection against corrosion . 8
4.5 Manufacturing appearance and finish . 8
4.6 Marking . 8
4.7 Installation instructions . 8
5 Quality assurance . 8
6 Classification of tests. 9
6.1 Type tests . 9
6.1.1 General . 9
6.1.2 Application . 9
6.2 Sample tests . 9
6.2.1 General . 9
6.2.2 Application . 9
6.2.3 Sampling, acceptance criteria . 9
6.3 Routine tests. 10
6.3.1 General . 10
6.3.2 Application and acceptance criteria . 10
6.4 Table of tests to be applied . 10
7 Test methods . 11
7.1 Visual examination . 11
7.2 Verification of dimensions, materials and mass . 11
7.3 Corrosion protection tests . 11
7.3.1 Hot dip galvanized components (other than messenger cable wires) . 11
7.3.2 Ferrous components protected from corrosion by methods other than
hot dip galvanizing . 12
7.3.3 Hot dip galvanized messenger cable wires . 12
7.4 Non-destructive tests . 12
7.5 Clamp slip test . 12
7.6 Breakaway bolt test . 13
7.7 Clamp bolt tightening test . 14
7.8 Attachment of weights to messenger cable test . 14
7.9 Attachment of clamp to messenger cable test . 15
7.10 Corona and radio interference voltage (RIV) tests . 15
7.11 Damper performance tests . 15
7.11.1 Performance test variants . 15
7.11.2 Damper characteristic test . 16
7.11.3 Damper effectiveness evaluation . 18
7.12 Damper fatigue test . 21
7.12.1 Test methods . 21
IEC 61897:2020 © IEC 2020 – 3 –
7.12.2 Swept frequency method . 21
7.12.3 Resonant frequency method . 21
7.12.4 Acceptance criteria . 22
7.12.5 Fatigue test method – for spiral aeolian vibration dampers (SVD) . 22
Annex A (normative) Minimum technical details to be agreed between purchaser and
supplier . 23
Annex B (informative) Examples of graphs relevant to damper characteristic test . 24
Annex C (normative) Wind power input curve . 25
Annex D (informative) Description of HT conductors as given in
CIGRE TB 695‑2017 [6] . 27
Bibliography . 28
Figure 1 – Test arrangement for longitudinal slip tests . 13
Figure 2 – Test arrangement for attachment of weights to messenger cable test . 15
Figure 3 – Test arrangement for attachment of clamp to messenger cable test . 15
Figure 4 – Test arrangement for damper characteristic test . 18
Figure 5 – Example of test rig for laboratory test of damper effectiveness . 18
Figure B.1 – Examples of graphs relevant to damper characte
...
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