EN 60216-3:2006

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

IEC 60216-3:2006 specifies the calculation procedures to be 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 may be obtained using non-destructive, destructive or proof tests. Data obtained from non-destructive or proof tests may be incomplete, in that measurement of times taken to reach the endpoint may 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. The major technical changes with regard to the first edition concern an updating of Table C.2. In addition, the scope has been extended to cover a greater range of data characteristics, particularly with regard to incomplete data, as often obtained from proof test criteria. The greater flexibility of use should lead to more efficient employment of the time available for ageing purposes. Finally, the procedures specified in this part of IEC 60216 have been extensively tested and have been used to calculate results from a large body of experimental data obtained in accordance with other parts of the standard. Annex E "Computer program" 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

La CEI 60216-3:2006 spécifie les méthodes de calcul à utiliser pour obtenir les caractéristiques d'endurance thermique à partir des données expérimentales obtenues conformément aux instructions de la CEI 60216-1 et de la CEI 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 et des essais d'épreuve. Les données obtenues à partir d'essais non destructifs ou d'essais d'épreuve peuvent être incomplètes, car la mesure des temps mis pour atteindre le point limite peut avoir été arrêtée 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. Les modifications majeures par rapport à la première édition concernent la mise à jour du Tableau C.2. De plus, le domaine d'application a été élargi pour couvrir une plus grande gamme de caractéristiques de données, en particulier en ce qui concerne les données incomplètes, comme cela est souvent le cas pour les données obtenues à partir de critères d'essai d'épreuve. Il convient que cette plus grande souplesse d'utilisation conduise à un emploi plus efficace du temps disponible pour les essais de vieillissement. Enfin, les méthodes spécifiées dans cette partie de la CEI 60216 ont été largement soumises aux essais et ont été utilisées pour calculer les résultats à partir d'un grand nombre de données expérimentales obtenues conformément aux autres parties de la norme. L'Annexe E "Programme informatique" a été complètement remaniée.

Električni izolacijski materiali - Lastnosti v zvezi s toplotno vzdržljivostjo - 3. del: Navodila za izračunavanje karakteristik toplotne vzdržljivosti (IEC 60216-3:2006)

General Information

• Status: Withdrawn
• Publication Date: 12-Jul-2006
• Withdrawal Date: 31-May-2009
• ICS: 17.220.99 - Other standards related to electricity and magnetism
• ICS: 19.020 - Test conditions and procedures in general
• ICS: 29.035.01 - Insulating materials 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
• Parallel Committee: IEC/TC 112 - IEC_TC_112
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 20-Apr-2024
• Completion Date: 20-Apr-2024
• Ref Project: SIST EN 60216-3:2006 - Electrical insulating materials - Thermal endurance properties -- Part 3: Instructions for calculating thermal endurance characteristics

Relations

• Replaces: EN 60216-3:2002 - Electrical insulating materials - Thermal endurance properties - Part 3: Instructions for calculating thermal endurance characteristics
• Effective Date: 28-Jan-2023
• Replaced By: EN IEC 60216-3:2021 - Electrical insulating materials - Thermal endurance properties - Part 3: Instructions for calculating thermal endurance characteristics
• Effective Date: 04-May-2021

Standards Content (Sample)

SLOVENSKI SIST EN 60216-3:2006

STANDARD
oct 2006
Električni izolacijski materiali – Lastnosti v zvezi s toplotno vzdržljivostjo – 3.
del: Navodila za izračunavanje karakteristik toplotne vzdržljivosti (IEC 60216-
3:2006)
Electrical insulating materials - Thermal endurance properties – Part 3: Instructions
for calculating thermal endurance characteristics (IEC 60216-3:2006)
ICS 29.035.01 Referenčna številka
©  Standard je založil in izdal Slovenski inštitut za standardizacijo. Razmnoževanje ali kopiranje celote ali delov tega dokumenta ni dovoljeno

EUROPEAN STANDARD
EN 60216-3
NORME EUROPÉENNE
July 2006
EUROPÄISCHE NORM
ICS 17.220.99; 19.020; 29.035.01 Supersedes EN 60216-3:2002

English version
Electrical insulating materials -
Thermal endurance properties
Part 3: Instructions for calculating thermal endurance characteristics
(IEC 60216-3:2006)
Matériaux isolants électriques -  Elektroisolierstoffe –
Propriétés d'endurance thermique Eigenschaften hinsichtlich des
Partie 3: Instructions pour le calcul des thermischen Langzeitverhaltens
caractéristiques d'endurance thermique Teil 3: Anweisungen zur Berechnung
(CEI 60216-3:2006) thermischer Langzeitkennwerte
(IEC 60216-3:2006)
This European Standard was approved by CENELEC on 2006-06-01. 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, 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

Central Secretariat: rue de Stassart 35, B - 1050 Brussels

© 2006 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60216-3:2006 E
Foreword
The text of document 112/26/FDIS, future edition 2 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 was approved by CENELEC as EN 60216-3 on 2006-06-01.
This European Standard supersedes EN 60216-3:2002.
The major technical changes with regard to EN 60216-3:2002 concern an updating of Table C.2. In
addition, the scope has been extended to cover a greater range of data characteristics, particularly with
regard to incomplete data, as often obtained from proof test criteria. The greater flexibility of use should
lead to more efficient employment of the time available for ageing purposes. Finally, the procedures
specified in this part of EN 60216 have been extensively tested and have been used to calculate results
from a large body of experimental data obtained in accordance with other parts of the standard. Annex E
'Computer program' has been completely reworked.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2007-03-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2009-06-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60216-3:2006 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following note has to be added for the standard indicated:
IEC 60216-5 NOTE  Harmonized as EN 60216-5:2003 (not modified).
__________
- 3 - EN 60216-3:2006
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

IEC 60216-1 2001 Electrical insulating materials - Properties of EN 60216-1 2001
thermal endurance
Part 1: Ageing procedures and evaluation of
test results
IEC 60216-2 2005 Electrical insulating materials - Thermal EN 60216-2 2005
endurance properties
Part 2: Determination of thermal endurance
properties of electrical insulating materials -
Choice of test criteria
IEC 60493-1 1974 Guide for the statistical analysis of ageing - -
test data
Part 1: Methods based on mean values of
normally distributed test results

INTERNATIONAL IEC
STANDARD 60216-3
Second edition
2006-04
Electrical insulating materials –
Thermal endurance properties –

Part 3:
Instructions for calculating thermal
endurance characteristics
 IEC 2006  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
International Electrotechnical Commission, 3, rue de Varembé, PO Box 131, CH-1211 Geneva 20, Switzerland
Telephone: [phone] Telefax: [phone] E-mail: [e-mail] Web: www.iec.ch
PRICE CODE
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International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

– 2 – 60216-3  IEC:2006(E)
CONTENTS
FOREWORD.4

1 Scope.6
2 Normative references .6
3 Terms, definitions, symbols and abbreviated terms.6
4 Principles of calculations .10
4.1 General principles .10
4.2 Preliminary calculations.10
4.3 Variance calculations .11
4.4 Statistical tests.12
4.5 Results.12
5 Requirements and recommendations for valid calculations .13
5.1 Requirements for experimental data .13
5.2 Precision of calculations.13
6 Calculation procedures.13
6.1 Preliminary calculations.13
6.2 Main calculations.17
6.3 Statistical tests.19
6.4 Thermal endurance graph .21
7 Calculation and requirements for results.21
7.1 Calculation of thermal endurance characteristics.21
7.2 Summary of statistical tests and reporting .22
7.3 Reporting of results .22
8 Test report.22

Annex A (normative)  Decision flow chart.24
Annex B (normative)  Decision table .25
Annex C (informative)  Statistical tables.26
Annex D (informative)  Worked examples .35
Annex E (informative)  Computer program .42

Bibliography.50

Figure D.1 – Thermal endurance graph.39
Figure D.2 – Example 3: Property-time graph (destructive test data).41

Table B.1 – Decisions and actions according to tests.25
Table C.1 – Coefficients for censored data calculations .26
Table C.2 – Fractiles of the F-distribution, F(0,95 ,f ,f ).32
n d
Table C.3 – Fractiles of the F-distribution, F(0,995 ,f ,f ) .33
n d
Table C.4 –Fractiles of the t-distribution, t .34
0,95
Table C.5 – Fractiles of the χ -distribution.34

60216-3  IEC:2006(E) – 3 –
Table D.1 – Worked example 1 – Censored data (proof tests).35
Table D.2 – Worked example 2 – Complete data (non-destructive tests) .37
Table D.3 – Worked example 3 – Destructive tests .40
Table E.1 – Non-destructive test data .43
Table E.2 – Destructive test data .44

– 4 – 60216-3  IEC:2006(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL INSULATING MATERIALS –
THERMAL ENDURANCE PROPERTIES –

Part 3: Instructions for calculating thermal
endurance characteristics
FOREWORD
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