EN IEC 60216-3:2021

Electrical insulating materials - Thermal endurance properties - Part 3: Instructions for calculating thermal endurance characteristics

IEC 60216-3:2021 is available as IEC 60216-3:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition.IEC 60216-3:2021 specifies the calculation procedures used for deriving thermal endurance characteristics from experimental data obtained in accordance with the instructions of IEC 60216-1 and IEC 60216-2, using fixed ageing temperatures and variable ageing times. The experimental data can be obtained using non-destructive, destructive or proof tests. Data obtained from non-destructive or proof tests can be incomplete, in that it is possible that measurement of times taken to reach the end-point will have been terminated at some point after the median time but before all specimens have reached end-point. The procedures are illustrated by worked examples, and suitable computer programs are recommended to facilitate the calculations. This edition includes the following significant technical changes with respect to the previous edition: - a new computer program has been included; - Annex E " has been completely reworked.

Elektroisolierstoffe – Eigenschaften hinsichtlich des thermischen Langzeitverhaltens – Teil 3: Anweisungen zur Berechnung thermischer Langzeitkennwerte

Matériaux isolants électriques - Propriétés d’endurance thermique - Partie 3: Instructions pour le calcul des caractéristiques d’endurance thermique

IEC 60216-3:2021 est disponible sous forme de IEC 60216-3:2021 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.L'IEC 60216-3:2021 spécifie les méthodes de calcul utilisées pour obtenir les caractéristiques d'endurance thermique à partir des données expérimentales obtenues conformément aux instructions de l'IEC 60216-1 et de l'IEC 60216-2, en utilisant des températures de vieillissement fixes et des temps de vieillissement variables. Les données expérimentales peuvent être obtenues en utilisant des essais non destructifs, des essais destructifs ou des essais d'épreuve. Les données obtenues à partir d'essais non destructifs ou d'essais d'épreuve peuvent être incomplètes, en ce sens que le mesurage des temps mis pour atteindre le point limite peut avoir été interrompu à un moment situé après le temps médian, mais avant que toutes les éprouvettes n'aient atteint le point limite. Les méthodes sont illustrées par des exemples pratiques, et des programmes informatiques adaptés sont recommandés pour faciliter les calculs. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: - un nouveau programme informatique est inclus; - l'Annexe E a été complètement remaniée.

Elektroizolacijski materiali - Lastnosti toplotne vzdržljivosti - 3. del: Navodila za izračunavanje karakteristik toplotne vzdržljivosti (IEC 60216-3:2021)

General Information

• Status: Published
• Publication Date: 29-Apr-2021
• ICS: 17.220.99 - Other standards related to electricity and magnetism
• ICS: 19.020 - Test conditions and procedures in general
• Technical Committee: CLC/SR 112 - Evaluation and qualification of electrical insulating materials and systems (to be defined)
• Drafting Committee: IEC/TC 112 - IEC_TC_112
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 30-Apr-2021
• Completion Date: 30-Apr-2021
• Ref Project: SIST EN IEC 60216-3:2021 - Electrical insulating materials - Thermal endurance properties - Part 3: Instructions for calculating thermal endurance characteristics (IEC 60216-3:2021)

Relations

• Replaces: EN 60216-3:2006 - Electrical insulating materials - Thermal endurance properties - Part 3: Instructions for calculating thermal endurance characteristics
• Effective Date: 04-May-2021

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2021
Nadomešča:
SIST EN 60216-3:2006
Elektroizolacijski materiali - Lastnosti toplotne vzdržljivosti - 3. del: Navodila za
izračunavanje karakteristik toplotne vzdržljivosti (IEC 60216-3:2021)
Electrical insulating materials - Thermal endurance properties - Part 3: Instructions for
calculating thermal endurance characteristics (IEC 60216-3:2021)
Elektroisolierstoffe – Eigenschaften hinsichtlich des thermischen Langzeitverhaltens –
Teil 3: Anweisungen zur Berechnung thermischer Langzeitkennwerte (IEC 60216-3:2021)
Matériaux isolants électriques - Propriétés d’endurance thermique - Partie 3: Instructions
pour le calcul des caractéristiques d’endurance thermique (IEC 60216-3:2021)
Ta slovenski standard je istoveten z: EN IEC 60216-3:2021
ICS:
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 60216-3

NORME EUROPÉENNE
EUROPÄISCHE NORM
April 2021
ICS 17.220.99; 19.020 Supersedes EN 60216-3:2006 and all of its amendments
and corrigenda (if any)
English Version
Electrical insulating materials - Thermal endurance properties -
Part 3: Instructions for calculating thermal endurance
characteristics
(IEC 60216-3:2021)
Matériaux isolants électriques - Propriétés d'endurance Elektroisolierstoffe - Eigenschaften hinsichtlich des
thermique - Partie 3: Instructions pour le calcul des thermischen Langzeitverhaltens - Teil 3: Anweisungen zur
caractéristiques d'endurance thermique Berechnung thermischer Langzeitkennwerte
(IEC 60216-3:2021) (IEC 60216-3:2021)
This European Standard was approved by CENELEC on 2021-04-20. 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
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60216-3:2021 E

European foreword
The text of document 112/475/CDV, future edition 3 of IEC 60216-3, 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 60216-3:2021.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2022-01-20
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2024-04-20
document have to be withdrawn
This document supersedes EN 60216-3:2006 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 60216-3:2021 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 60216-2 NOTE Harmonized as EN 60216-2
IEC 60216-5 NOTE Harmonized as EN 60216-5
IEC 60216-6 NOTE Harmonized as EN 60216-6
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 60216-1 2013 Electrical insulating materials - Thermal EN 60216-1 2013
endurance properties - Part 1: Ageing
procedures and evaluation of test results

IEC 60216-3 ®
Edition 3.0 2021-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Electrical insulating materials – Thermal endurance properties –

Part 3: Instructions for calculating thermal endurance characteristics

Matériaux isolants électriques – Propriétés d'endurance thermique –

Partie 3: Instructions pour le calcul des caractéristiques d'endurance thermique

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.220.99; 19.020 ISBN 978-2-8322-9440-6

– 2 – IEC 60216-3:2021 © IEC 2021
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms, definitions, symbols and abbreviated terms . 6
3.1 Terms and definitions . 6
3.2 Symbols and abbreviated terms . 8
4 Principles of calculations . 10
4.1 General principles . 10
4.2 Preliminary calculations . 10
4.2.1 General . 10
4.2.2 Non-destructive tests . 11
4.2.3 Proof tests . 11
4.2.4 Destructive tests . 11
4.3 Variance calculations . 12
4.4 Statistical tests . 12
4.5 Results . 13
5 Requirements and recommendations for valid calculations . 13
5.1 Requirements for experimental data . 13
5.1.1 General . 13
5.1.2 Non-destructive tests . 13
5.1.3 Proof tests . 13
5.1.4 Destructive tests . 13
5.2 Precision of calculations . 14
6 Calculation procedures . 14
6.1 Preliminary calculations . 14
6.1.1 Temperatures and x-values . 14
6.1.2 Non-destructive tests . 14
6.1.3 Proof tests . 14
6.1.4 Destructive tests . 14
6.1.5 Incomplete data . 18
6.2 Main calculations . 18
6.2.1 Calculation of group means and variances . 18
6.2.2 General means and variances . 19
6.2.3 Regression calculations . 20
6.3 Statistical tests . 21
6.3.1 Variance equality test . 21
6.3.2 Linearity test (F-test) . 21
6.3.3 Confidence limits of X and Y estimates . 22
6.4 Thermal endurance graph . 23
7 Calculation and requirements for results . 23
7.1 Calculation of thermal endurance characteristics . 23
7.2 Summary of statistical tests and reporting . 24
7.3 Reporting of results . 24
8 Test report . 24
Annex A (normative) Decision flow chart . 26

IEC 60216-3:2021 © IEC 2021 – 3 –
Annex B (normative) Decision table . 27
Annex C (informative) Statistical tables . 28
Annex D (informative) Worked examples. 38
Annex E (informative) Computer program . 46
E.1 General . 46
E.1.1 Overview . 46
E.1.2 Convenience program execution . 47
E.2 Structure of data files used by the program . 48
E.2.1 Text file formats . 48
E.2.2 Office Open XML formats. 50
E.3 Data files for computer program . 51
E.4 Output files and graph . 56
Bibliography . 57

Figure 1 – Example of groups selection . 15
Figure A.1 – Decision flow chart . 26
Figure D.1 – Thermal endurance graph . 42
Figure D.2 – Example 3: Property-time graph. 44
Figure E.1 – Shortcut property dialog for program launch . 47
Figure E.2 – Thermal endurance graph of example N3 .
...