Overhead lines - Requirements and tests for spacers

IEC 61854:2020 is available as IEC 61854:2020 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 61854:2020 applies to spacers for conductor bundles of overhead lines. It covers rigid spacers, flexible spacers and spacer dampers. It does not apply to interphase spacers, hoop spacers and bonding spacers. This document is written to cover the line design practices and spacers most commonly used at the time of writing. There may be other spacers available for which the specific tests reported in this document may not be applicable. In some cases, test procedures and test values are left to agreement between purchaser and supplier and are stated in the procurement contract. The purchaser is best able to evaluate the intended service conditions, which should be the basis for establishing the test severity. In Annex A, the minimum technical details to be agreed between purchaser and supplier are listed. 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 the application of spacers on high temperature conductors specifying additional high temperature tests in clamp slip tests and for the characterization of elastic and damping properties; b) Specify as far as possible test parameters and acceptance values; c) Avoid as far as possible the alternative procedures for the same test; d) Introduce a simpler test device for the simulated short circuit current test; e) Introduce test at low temperature on fastener components such as break away bolts and conical spring washers; f) Prescribe a different procedure for subspan oscillation tests on spacers equipped with clamps having rod attachments; g) Modify the test procedure for the aeolian vibration tests; h) Prescribe a different procedure for aeolian vibration tests on spacers equipped with clamps having rod attachments; i) Re-edit all the figures in order to make them more clear and homogeneous; j) Introduce an additional test device for the simulated short circuit current test. Key words: Overhead Lines, Spacers

Freileitungen - Anforderungen und Prüfungen für Feldabstandhalter

Lignes aériennes - Exigences et essais applicables aux entretoises

IEC 61854:2020 est disponible sous forme de IEC 61854:2020 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.IEC 61854:2020 s'applique aux entretoises destinées aux faisceaux de conducteurs de lignes aériennes. Il couvre les entretoises rigides, les entretoises souples et les entretoises amortisseuses. Il ne s'applique pas aux espaceurs, aux écarteurs à anneaux et aux entretoises de mise à la terre. Le présent document a été élaboré pour couvrir les pratiques de conception de lignes, ainsi que les entretoises les plus couramment utilisées au moment de sa rédaction. Il peut exister d'autres entretoises pour lesquelles les essais spécifiques décrits dans le présent document peuvent ne pas s'appliquer. Dans certains cas, les procédures d'essai et les valeurs d'essai sont convenues entre l'acheteur et le fournisseur et sont indiquées dans le contrat d'approvisionnement. L'acheteur est le mieux à même d'évaluer les conditions de service prévues, qu'il convient d'utiliser comme base pour la définition de la sévérité des essais. L'Annexe A répertorie les informations techniques minimales à convenir entre l'acheteur et le fournisseur. Cette deuxième édition annule et remplace la première édition parue en 1998. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) prise en compte de l'application des entretoises sur des conducteurs haute température, avec la spécification d'essais à haute température supplémentaires dans le cadre des essais de glissement des pinces et la caractérisation des propriétés élastiques et d'amortissement; b) spécification la plus large possible des paramètres d'essai et des valeurs de réception associées; c) affranchissement, dans la mesure du possible, par rapport aux procédures alternatives pour le même essai; d) introduction d'un dispositif d'essai plus simple pour l'essai de courant de court-circuit simulé; e) introduction d'un essai à basse température sur les composants de fixation tels que les boulons fusibles et les rondelles élastiques coniques; f) prescription d'une procédure différente pour les essais d'oscillation de sous-portée sur les entretoises équipées de pinces avec garnitures; g) modification de la procédure d'essai pour les essais de vibrations éoliennes; h) prescription d'une procédure différente pour les essais de vibrations éoliennes sur les entretoises équipées de pinces avec garnitures; i) reprise de l'ensemble des figures afin de les rendre plus claires et homogènes; j) introduction d'un dispositif d'essai supplémentaire pour l'essai de courant de court-circuit simulé. Mots-clés: lignes aériennes, entretoises

Nadzemni vodi - Zahteve in preskusi za distančnike (IEC 61854:2020)

General Information

Status
Published
Publication Date
16-Apr-2020
Current Stage
6060 - Document made available
Due Date
17-Apr-2020
Completion Date
17-Apr-2020

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SLOVENSKI STANDARD
SIST EN IEC 61854:2021
01-januar-2021
Nadomešča:
SIST EN 61854:1999
Nadzemni vodi - Zahteve in preskusi za distančnike (IEC 61854:2020)
Overhead lines - Requirements and tests for spacers (IEC 61854:2020)

Freileitungen - Anforderungen und Prüfungen für Feldabstandhalter (IEC 61854:2020)

Lignes aériennes - Exigences et essais applicables aux entretoises (IEC 61854:2020)

Ta slovenski standard je istoveten z: EN IEC 61854:2020
ICS:
29.240.20 Daljnovodi Power transmission and
distribution lines
SIST EN IEC 61854:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN IEC 61854:2021
---------------------- Page: 2 ----------------------
SIST EN IEC 61854:2021
EUROPEAN STANDARD EN IEC 61854
NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2020
ICS 29.240.20 Supersedes EN 61854:1998 and all of its amendments
and corrigenda (if any)
English Version
Overhead lines - Requirements and tests for spacers
(IEC 61854:2020)

Lignes aériennes - Exigences et essais applicables aux Freileitungen - Anforderungen und Prüfungen für

entretoises Feldabstandhalter
(IEC 61854:2020) (IEC 61854:2020)

This European Standard was approved by CENELEC on 2020-03-24. 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 61854:2020 E
---------------------- Page: 3 ----------------------
SIST EN IEC 61854:2021
EN IEC 61854:2020 (E)
European foreword

The text of document 11/265/FDIS, future edition 2 of IEC 61854, prepared by IEC/TC 11 "Overhead

lines" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
EN IEC 61854:2020.
The following dates are fixed:

• latest date by which the document has to be implemented at national (dop) 2020-12-24

level by publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2023-03-24

document have to be withdrawn

This document supersedes EN 61854:1998 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 61854:2020 was approved by CENELEC as a European

Standard without any modification.
---------------------- Page: 4 ----------------------
SIST EN IEC 61854:2021
EN IEC 61854:2020 (E)
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 for EN 61284 1997
fittings
ISO 34-1 2015 Rubber, vulcanized or thermoplastic - - -
Determination of tear strength - Part 1:
Trouser, angle and crescent test pieces
ISO 34-2 2015 Rubber, vulcanized or thermoplastic - - -
Determination of tear strength - Part 2: Small
(Delft) test pieces
ISO 37 2017 Rubber, vulcanized or thermoplastic - - -
Determination of tensile stress-strain
properties
ISO 188 2011 Rubber, vulcanized or thermoplastic - - -
Accelerated ageing and heat resistance tests
ISO 812 2017 Rubber, vulcanized or thermoplastic - - -
Determination of low-temperature brittleness
ISO 815-1 2014 Rubber, vulcanized or thermoplastic - - -
Determination of compression set - Part 1: At
ambient or elevated temperatures
ISO 815-2 2014 Rubber, vulcanized or thermoplastic - - -
Determination of compression set - Part 2: At
low temperatures
ISO 868 2003 Plastics and ebonite - Determination of EN ISO 868 2003
indentation hardness by means of a durometer
(Shore hardness)
---------------------- Page: 5 ----------------------
SIST EN IEC 61854:2021
EN IEC 61854:2020 (E)

ISO 1183-1 2019 Plastics - Methods for determining the density EN ISO 1183-1 2019

of non-cellular plastics - Part 1: Immersion
method, liquid pycnometer method and
titration method
ISO 1431-1 2012 Rubber, vulcanized or thermoplastic - - -
Resistance to ozone cracking - Part 1: Static
and dynamic strain testing
ISO 1461 2009 Hot dip galvanized coatings on fabricated iron EN ISO 1461 2009
and steel articles - Specifications and test
methods
ISO 1817 2015 Rubber, vulcanized or thermoplastic - - -
Determination of the effect of liquids
ISO 2781 2018 Rubber, vulcanized or thermoplastic - - -
Determination of density
ISO 2859-1 1999 Sampling procedures for inspection by - -
attributes - Part 1: Sampling schemes indexed
by acceptable 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 2921 2011 Rubber, vulcanized - Determination of low- - -
temperature retraction (TR test)
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 4649 2017 Rubber, vulcanized or thermoplastic - - -
Determination of abrasion resistance using a
rotating cylindrical drum device
ISO 4662 2017 Rubber, vulcanized or thermoplastic - - -
Determination of rebound resilience
ISO 6502-2 2018 Rubber - Measurement of vulcanization - -
characteristics using curemeters - Part 2:
Oscillating disc curemeter
ISO 9001 2015 Quality management systems - Requirements EN ISO 9001 2015
---------------------- Page: 6 ----------------------
SIST EN IEC 61854:2021
IEC 61854
Edition 2.0 2020-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Overhead lines – Requirements and tests for spacers
Lignes aériennes – Exigences et essais applicables aux entretoises
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.240.20 ISBN 978-2-8322-7798-0

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
---------------------- Page: 7 ----------------------
SIST EN IEC 61854:2021
– 2 – IEC 61854:2020 © IEC 2020
CONTENTS

FOREWORD ........................................................................................................................... 4

1 Scope .............................................................................................................................. 6

2 Normative references ...................................................................................................... 6

3 Terms and definitions ...................................................................................................... 7

4 General requirements ...................................................................................................... 8

4.1 Design .................................................................................................................... 8

4.2 Materials ................................................................................................................. 9

4.2.1 General ........................................................................................................... 9

4.2.2 Non-metallic materials ..................................................................................... 9

4.3 Mass, dimensions and tolerances ........................................................................... 9

4.4 Protection against corrosion .................................................................................... 9

4.5 Manufacturing appearance and finish ...................................................................... 9

4.6 Marking ................................................................................................................... 9

4.7 Installation instructions ........................................................................................... 9

4.8 Specimen ................................................................................................................ 9

5 Quality assurance .......................................................................................................... 10

6 Classification of tests..................................................................................................... 10

6.1 Type tests ............................................................................................................. 10

6.1.1 General ......................................................................................................... 10

6.1.2 Application ..................................................................................................... 10

6.2 Sample tests ......................................................................................................... 10

6.2.1 General ......................................................................................................... 10

6.2.2 Application ..................................................................................................... 10

6.2.3 Sampling and acceptance criteria .................................................................. 11

6.3 Routine tests......................................................................................................... 11

6.3.1 General ......................................................................................................... 11

6.3.2 Application and acceptance criteria ............................................................... 11

6.4 Table of tests to be applied ................................................................................... 11

7 Test methods ................................................................................................................. 13

7.1 Visual examination ................................................................................................ 13

7.2 Verification of dimensions, materials and mass ..................................................... 13

7.3 Corrosion protection test ....................................................................................... 13

7.3.1 Hot dip galvanized components (other than stranded galvanized steel

wires) ............................................................................................................ 13

7.3.2 Ferrous components protected from corrosion by methods other than

hot dip galvanizing ......................................................................................... 14

7.3.3 Stranded galvanized steel wires .................................................................... 14

7.3.4 Corrosion caused by non-metallic components .............................................. 14

7.4 Non-destructive tests ............................................................................................ 14

7.5 Mechanical tests ................................................................................................... 14

7.5.1 Clamp slip tests ............................................................................................. 14

7.5.2 Tests on bolt sets .......................................................................................... 19

7.5.3 Simulated short-circuit current test and compression and tension tests .......... 21

7.5.4 Characterisation of the elastic and damping properties .................................. 27

7.5.5 Flexibility tests ............................................................................................... 31

7.5.6 Fatigue tests .................................................................................................. 33

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SIST EN IEC 61854:2021
IEC 61854:2020 © IEC 2020 – 3 –

7.6 Tests to characterise elastomers .......................................................................... 36

7.6.1 General ......................................................................................................... 36

7.6.2 Tests ............................................................................................................. 36

7.6.3 Ozone resistance test .................................................................................... 36

7.7 Electrical tests ...................................................................................................... 38

7.7.1 Corona and radio interference voltage (RIV) tests.......................................... 38

7.7.2 Electrical resistance test ................................................................................ 38

7.8 Verification of vibration behaviour of the bundle/spacer system ............................ 39

Annex A (normative) Minimum technical details to be agreed between purchaser and

supplier ................................................................................................................................. 40

Annex B (informative) Compressive forces in the simulated short-circuit current test ........... 41

Annex C (informative) Characterisation of the elastic and damping properties

Stiffness-Damping Method .................................................................................................... 42

Annex D (informative) Verification of vibration behaviour of the bundle/spacer system ......... 44

D.1 General ................................................................................................................. 44

D.2 Aeolian vibration ................................................................................................... 44

D.3 Subspan oscillation ............................................................................................... 45

Annex E (informative) Description of HT conductors as given in

CIGRE TB 695‑2017 [7] ........................................................................................................ 46

Bibliography .......................................................................................................................... 47

Figure 1 – Test arrangements for longitudinal slip tests ........................................................ 16

Figure 2 – Test arrangement for torsional slip tests ............................................................... 19

Figure 3 – Test arrangement for the spring force test at room temperature ........................... 20

Figure 4 – Test arrangement for permanent load test on conical washers ............................. 21

Figure 5 – Test arrangements for simulated short-circuit current tests .................................. 25

Figure 6 – Test arrangements for compression and tension test ............................................ 26

Figure 7 – Typical logaritmic decrement graph ...................................................................... 30

Figure 8 – Sketch of longitudinal displacement test ............................................................... 32

Figure 9 – Sketch of vertical displacement test ..................................................................... 32

Figure 10 – Sketch of conical displacement test .................................................................... 32

Figure 11 – Sketch of transverse horizontal displacement test .............................................. 33

Figure 12 – Test arrangements for subspan oscillation tests ................................................. 34

Figure 13 – Test arrangement for aeolian vibration test ........................................................ 36

Figure C.1 – Rotation of spacer arm around the centre of the hinge ...................................... 42

Figure C.2 – Vector representation of formula C.2 ................................................................ 43

Table 1 – Tests on spacers ................................................................................................... 12

Table 2 – Tests on elastomers .............................................................................................. 37

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SIST EN IEC 61854:2021
– 4 – IEC 61854:2020 © IEC 2020
INTERNATIONAL ELECTROTECHNICAL COMMISSION
_____________
OVERHEAD LINES –
REQUIREMENTS AND TESTS FOR SPACERS
FOREWORD

1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising

all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

international co-operation on all questions concerning standardization in the electrical and electronic fields. To

this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,

Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC

Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested

in the subject dealt with may participate in this preparatory work. International, governmental and non-

governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely

with the International Organization for Standardization (ISO) in accordance with conditions determined by

agreement between the two organizations.

2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international

consensus of opinion on the relevant subjects since each technical committee has representation from all

interested IEC National Committees.

3) IEC Publications have the form of recommendations for international use and are accepted by IEC National

Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC

Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any

misinterpretation by any end user.

4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications

transparently to the maximum extent possible in their national and regional publications. Any divergence

between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in

the latter.

5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity

assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any

services carried out by independent certification bodies.

6) All users should ensure that they have the latest edition of this publication.

7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and

members of its technical committees and IEC National Committees for any personal injury, property damage or

other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and

expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC

Publications.

8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is

indispensable for the correct application of this publication.

9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of

patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

International Standard IEC 61854 has been prepared by IEC technical committee 11:

Overhead lines.

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 the application of spacers on high temperature conductors specifying additional

high temperature tests in clamp slip tests and for the characterization of elastic and

damping properties;
b) Specify as far as possible test parameters and acceptance values;
c) Avoid as far as possible the alternative procedures for the same test;
d) Introduce a simpler test device for the simulated short circuit current test;

e) Introduce test at low temperature on fastener components such as break away bolts and

conical spring washers;
---------------------- Page: 10 ----------------------
SIST EN IEC 61854:2021
IEC 61854:2020 © IEC 2020 – 5 –

f) Prescribe a different procedure for subspan oscillation tests on spacers equipped with

clamps having rod attachments;
g) Modify the test procedure for the aeolian vibration tests;

h) Prescribe a different procedure for aeolian vibration tests on spacers equipped with clamps

having rod attachments;
i) Re-edit all the figures in order to make them more clear and homogeneous;

j) Introduce an additional test device for the simulated short circuit current test.

The text of this standard is based on the following documents:
FDIS Report on voting
11/265/FDIS 11/272/RVD

Full information on the voting for the approval of this standard can be found in the report on

voting indicated in the above table.

This document has been drafted in accordance with the ISO/IEC Directives, Part 2.

The committee has decided that the contents of this document will remain unchanged until the

stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to

the specific document. At this date, the document 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.
---------------------- Page: 11 ----------------------
SIST EN IEC 61854:2021
– 6 – IEC 61854:2020 © IEC 2020
OVERHEAD LINES –
REQUIREMENTS AND TESTS FOR SPACERS
1 Scope

This document applies to spacers for conductor bundles of overhead lines. It covers rigid

spacers, flexible spacers and spacer dampers.
It does not apply to interphase spacers, hoop spacers and bonding spacers.

NOTE This document is written to cover the line design practices and spacers most commonly used at the time of

writing. There may be other spacers available for which the specific tests reported in this document may not be

applicable.

In some cases, test procedures and test values are left to agreement between purchaser and

supplier and are stated in the procurement contract. The purchaser is best able to evaluate

the intended service conditions, which should be the basis for establishing the test severity.

In Annex A, the minimum technical details to be agreed between purchaser and supplier are

listed.
2 Normative references

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.

IEC 60050(466):1990, International Electrotechnical vocabulary (IEV) – Chapter 466:

Overhead lines
IEC 60888:1987, Zinc-coated steel wires for stranded conductors
IEC 61284:1997, Overhead lines – Requirements and tests for fittings

ISO 34-1:2015, Rubber, vulcanized or thermoplastic – Determination of tear strength – Part 1:

Trouser, angle and crescent test pieces

ISO 34-2:2015, Rubber, vulcanized or thermoplastic – Determination of tear strength – Part 2:

Small (Delft) test pieces

ISO 37:2017, Rubber, vulcanized or thermoplastic – Determination of tensile stress-strain

properties

ISO 188:2011, Rubber, vulcanized or thermoplastic – Accelerated ageing or heat resistance

tests

ISO 812:2017, Rubber, vulcanized or thermoplastic – Determination of low-temperature

brittleness

ISO 815-1:2014, Rubber, vulcanized or thermoplastic – Determination of compression set –

Part 1: At ambient or elevated temperatures
---------------------- Page: 12 ----------------------
SIST EN IEC 61854:2021
IEC 61854:2020 © IEC 2020 – 7 –

ISO 815-2:2014, Rubber, vulcanized or thermoplastic – Determination of compression set –

Part 2: At low temperatures

ISO 868:2003, Plastics and ebonite – Determination of indentation hardness by means of a

durometer (Shore hardness)

ISO 1183-1: 2019, Plastics — Methods for determining the density of non-cellular plastics —

Part 1: Immersion method, liquid pycnometer method and titration method

ISO 1431-1:2012, Rubber, vulcanized or thermoplastic – Resistance to ozone cracking –

Part 1: Static and dynamic strain testing

ISO 1461:2009, Hot dip galvanized coatings on fabricated iron and steel articles –

Specifications and test methods

ISO 1817:2015, Rubber, vulcanized or thermoplastic – Determination of the effect of liquids

ISO 2781:2018, Rubber, vulcanized or thermoplastic – Determination of density

ISO 2859-1:1999/AMD1: 2011, Sampling procedures for inspection by attributes – Part 1:

Sampling schemes indexed by acceptable quality limit (AQL) for lot-by-lot inspection

ISO 2859-2:1985, Sampling procedures for inspection by attributes – Part 2: Sampling plans

indexed by limiting quality level (LQ) for isolated lot inspection

ISO 2921:2011, Rubber, vulcanized – Determination of low-temperature retraction (TR test)

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 4649:2017, Rubber, vulcanized or thermoplastic – Determination of abrasion resistance

using a rotating cylindrical drum device

ISO 4662:2017, Rubber, vulcanized or thermoplastic – Determination of rebound resilience

ISO 6502-2:2018, Rubber – Measurement of vulcanization characteristics using curemeters –

Part 2: Oscillating disc curemeter
ISO 9001:2015, Quality management systems – Requirements
3 Terms and definitions

For the purposes of this document, the terms and definitions given in IEC 60050-466 apply as

well as the following.

ISO and IEC maintain terminological databases for use in standardization at the following

addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
---------------------- Page: 13 ----------------------
SIST EN IEC 61854:2021
– 8 – IEC 61854:2020 © IEC 2020
3.1
rigid spacer

spacer allowing no relative movement between the subconductors at the spacer location

3.2
flexible spacer
spac
...

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