EN IEC 60544-5:2022

SLOVENSKI STANDARD
01-oktober-2022
Nadomešča:
SIST EN 60544-5:2012
Električni izolacijski materiali - Ugotavljanje učinkov ionizirnega sevanja - 5. del:
Postopki za ocenjevanje staranja med uporabo (IEC 60544-5:2022)
Electrical insulating materials - Determination of the effects of ionizing radiation - Part 5:
Procedures for assessment of ageing in service (IEC 60544-5:2022)
Elektroisolierstoffe - Bestimmung der Wirkung ionisierender Strahlung - Teil 5:
Bewertungsverfahren für die Alterung während des Einsatzes (IEC 60544-5:2022)
Matériaux isolants électriques - Détermination des effets des rayonnements ionisants -
Partie 5: Procédures pour l'estimation du vieillissement en service (IEC 60544-5:2022)
Ta slovenski standard je istoveten z: EN IEC 60544-5:2022
ICS:
17.240 Merjenje sevanja Radiation measurements
29.035.01 Izolacijski materiali na Insulating materials in
splošno general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 60544-5

NORME EUROPÉENNE
EUROPÄISCHE NORM August 2022
ICS 17.240; 29.035.01 Supersedes EN 60544-5:2012
English Version
Electrical insulating materials - Determination of the effects of
ionizing radiation - Part 5: Procedures for assessment of ageing
in service
(IEC 60544-5:2022)
Matériaux isolants électriques - Détermination des effets Elektroisolierstoffe - Bestimmung der Wirkung ionisierender
des rayonnements ionisants - Partie 5: Procédures pour Strahlung - Teil 5: Bewertungsverfahren für die Alterung
l'évaluation du vieillissement en service während des Einsatzes
(IEC 60544-5:2022) (IEC 60544-5:2022)
This European Standard was approved by CENELEC on 2022-07-22. 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
© 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60544-5:2022 E

European foreword
The text of document 112/523/CDV, future edition 3 of IEC 60544-5, prepared by IEC/TC 112
"Evaluation and qualification of electrical insulating materials and systems" was submitted to the IEC-
CENELEC parallel vote and approved by CENELEC as EN IEC 60544-5:2022.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2023-04-22
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2025-07-22
document have to be withdrawn
This document supersedes EN 60544-5:2012 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.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 60544-5:2022 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/IEEE 62582 (series) NOTE Harmonized as EN IEC/IEEE 62582 (series)
IEC 62465 NOTE Harmonized as EN IEC 62465
IEC/IEEE 60780-323 NOTE Harmonized as EN 60780-323
IEC 60544-4 NOTE Harmonized as EN 60544-4
IEC 60544-1 NOTE Harmonized as EN 60544-1
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 60544-2 - Electrical insulating materials - EN 60544-2 -
Determination of the effects of ionizing
radiation on insulating materials - Part 2:
Procedures for irradiation and test
IEC/TS 61244-1 - Determination of long-term radiation - -
ageing in polymers - Part 1: Techniques for
monitoring diffusion-limited oxidation
IEC/TS 61244-2 - Determination of long-term radiation - -
ageing in polymers - Part 2: Procedures for
predicting ageing at low dose rates

IEC 60544-5 ®
Edition 3.0 2022-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical insulating materials – Determination of the effects of ionizing

radiation –
Part 5: Procedures for assessment of ageing in service

Matériaux isolants électriques – Détermination des effets des rayonnements

ionisants –
Partie 5: Procédures pour l'évaluation du vieillissement en service

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.240; 29.035.01 ISBN 978-2-8322-3826-4

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CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and abbreviated terms . 7
3.1 Terms and definitions . 7
3.2 Abbreviated terms . 7
4 Background . 8
4.1 General . 8
4.2 Diffusion-limited oxidation (DLO). 8
4.3 Dose rate effects (DRE) . 9
4.4 Accelerated radiation ageing . 9
4.5 Accelerated thermal ageing . 9
5 Approaches to ageing assessment . 10
6 Identifying components of concern . 10
6.1 General . 10
6.2 Priorities for ageing management . 10
6.3 Environmental monitoring . 10
6.4 Localized severe environments . 11
6.5 Worst case components . 11
7 Condition monitoring techniques . 11
7.1 General . 11
7.2 Establishing correlation curves for CM methods . 11
7.3 CM methods . 12
7.4 Using CM for short-term troubleshooting . 12
7.5 Using CM for long-term degradation assessment . 14
8 Predictive modelling . 15
9 Sample deposit . 16
9.1 General . 16
9.2 Requirements of a deposit . 16
9.3 Pre-ageing samples for a deposit . 16
9.4 Installation of a sample deposit . 17
9.5 Testing of samples from the deposit . 17
9.6 Determination of sampling intervals . 17
9.7 Real time aged materials . 18
Annex A (informative) Example of a CM correlation curve . 19
Annex B (informative) Use of a deposit . 20
B.1 Typical sample in a deposit . 20
B.2 Typical testing schedule for a deposit . 20
Bibliography . 21

Figure 1 – Development of ageing data on changes in tensile elongation and a
condition indicator (e.g. indenter modulus) – Schematic representation . 13
Figure 2 – Correlation curve derived from data in Figure 1 – Schematic representation . 14
Figure 3 – Estimation of elongation from a correlation curve . 15

IEC 60544-5:2022 © IEC 2022 – 3 –
Figure 4 – Modification of sampling interval dependent on values of the CM indicator –
Schematic representation . 18
Figure A.1 – Correlation curve for indenter modulus against tensile elongation for a

CSPE cable jacket material [24] . 19

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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL INSULATING MATERIALS –
DETERMINATION OF THE EFFECTS OF IONIZING RADIATION –

Part 5: Procedures for assessment of ageing in service

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
...