EN 60216-8:2013

Electrical insulating materials - Thermal endurance properties - Part 8: Instructions for calculating thermal endurance characteristics using simplified procedures

IEC 60216-8:2013 specifies the general ageing conditions and simplified procedures to be used for deriving thermal endurance characteristics, which are shown by temperature index (TI) and/or relative temperature index (RTI) and the halving interval (HIC). The procedures specify the principles for evaluating the thermal endurance properties of materials exposed to elevated temperature for long periods. In the application of this standard, it is assumed that a practically linear relationship exists between the logarithm of the time required to cause the predetermined property change and the reciprocal of the corresponding absolute temperature (Arrhenius relationship). For the valid application of the standard, no transition, in particular no first-order transition should occur in the temperature range under study.

Elektroisolierstoffe - Eigenschaften hinsichtlich des thermischen Langzeitverhaltens - Teil 8: Anweisungen zur Berechnung von charakteristischen Werten zum thermischen Langzeitverhalten unter Verwendung vereinfachter Verfahren

Matériaux isolants électriques - Propriétés d'endurance thermique - Partie 8: Instructions pour le calcul des caractéristiques d'endurance thermique en utilisant des procédures simplifiées

La CEI 60216-8:2013 spécifie les conditions de vieillissement générales et les procédures simplifiées à utiliser pour déduire les caractéristiques d'endurance thermique, qui sont représentées par l'indice de température (IT) et/ou l'indice de température relatif (RTI) et l'intervalle de division par deux (IDC). Les procédures spécifient les principes régissant l'évaluation des propriétés d'endurance thermique des matériaux exposés à une température élevée pendant de longues périodes. Dans le cadre de l'application de la présente norme, on considère qu'il existe une relation pratiquement linéaire entre le logarithme du temps nécessaire pour provoquer le changement de propriété prédéterminé et l'inverse de la température absolue correspondante (relation d'Arrhenius). Pour que l'application de la présente norme soit valide, il convient qu'aucune transition, en particulier aucune transition du premier ordre, ne se produise dans la plage de températures à l'étude.

Elektroizolacijski materiali - Lastnosti toplotne vzdržljivosti - 8. del: Navodila za izračunavanje karakteristik toplotne vzdržljivosti z uporabo poenostavljenih postopkov

Ta del standarda IEC 60216 določa splošne pogoje staranja in poenostavljene postopke, ki naj se uporabijo za izpeljavo lastnosti toplotne vzdržljivosti, ki so prikazane s toplotnim indeksom (TI) in/ali relativnim toplotnim indeksom (RTI) in razpolovnim intervalom (HIC). Postopki določajo načela za vrednotenje lastnostni toplotne vzdržljivosti materialov, ki so dolgo izpostavljeni povišani temperaturi. V uporabi tega standarda se predvideva, da obstaja praktično linearno razmerje med logaritmom časa, potrebnega za povzročitev spremembe vnaprej določene lastnosti, in recipročno glede na ustrezno absolutno temperaturo (Arrheniusovo razmerje). Za veljavno uporabo standarda se v proučevanem temperaturnem obsegu ne sme pojaviti prehod, zlasti pa ne prehod prvega reda. V ostalem delu tega standarda izraz »izolacijski materiali« vedno pomeni »izolacijski materiali in enostavne kombinacije takšnih materialov«.

General Information

• Status: Published
• Publication Date: 11-Jul-2013
• Withdrawal Date: 18-Apr-2016
• ICS: 17.220.99 - Other standards related to electricity and magnetism
• 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
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 12-Jul-2013
• Completion Date: 12-Jul-2013
• Ref Project: SIST EN 60216-8:2013 - Electrical insulating materials - Thermal endurance properties - Part 8: Instructions for calculating thermal endurance characteristics using simplified procedures

Relations

• Replaces: EN 60216-1:2001 - Electrical insulating materials - Properties of thermal endurance - Part 1: Ageing procedures and evaluation of test results
• Effective Date: 28-Jan-2023

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2013
1DGRPHãþD
SIST EN 60216-1:2002
(OHNWURL]RODFLMVNLPDWHULDOL/DVWQRVWLWRSORWQHY]GUåOMLYRVWLGHO1DYRGLOD]D
L]UDþXQDYDQMHNDUDNWHULVWLNWRSORWQHY]GUåOMLYRVWL]XSRUDERSRHQRVWDYOMHQLK
SRVWRSNRY
Electrical insulating materials - Thermal endurance properties - Part 8: Instructions for
calculating thermal endurance characteristics using simplified procedures
/
/
Ta slovenski standard je istoveten z: EN 60216-8:2013
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 60216-8
NORME EUROPÉENNE
July 2013
EUROPÄISCHE NORM
ICS 17.220.99; 29.035.01 Supersedes EN 60216-1:2001 (partially)

English version
Electrical insulating materials -
Thermal endurance properties -
Part 8: Instructions for calculating thermal endurance characteristics
using simplified procedures
(IEC 60216-8:2013)
Matériaux isolants électriques -  Elektroisolierstoffe -
Propriétés d'endurance thermique - Eigenschaften hinsichtlich des
Partie 8: Instructions pour le calcul des thermischen Langzeitverhaltens -
caractéristiques d'endurance thermique en Teil 8: Anweisungen zur Berechnung von
utilisant des procédures simplifiées charakteristischen Werten zum
(CEI 60216-8:2013) thermischen Langzeitverhalten unter
Verwendung vereinfachter Verfahren
(IEC 60216-8:2013)
This European Standard was approved by CENELEC on 2013-04-19. 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, Former Yugoslav Republic of Macedonia, France, Germany,
Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

Management Centre: Avenue Marnix 17, B - 1000 Brussels

© 2013 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60216-8:2013 E
Foreword
The text of document 112/236/FDIS, future edition 1 of IEC 60216-8, 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 60216-8:2013.
The following dates are fixed:
(dop) 2014-01-19
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2016-04-19
• latest date by which the national
standards conflicting with the
document have to be withdrawn
This document supersedes EN 60216-1:2001 (PART).

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.
Endorsement notice
The text of the International Standard IEC 60216-8:2013 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 60216-6 NOTE Harmonised as EN 60216-6.
IEC 60212 NOTE Harmonised as EN 60212.
ISO 2578:1993 NOTE Harmonised as EN ISO 2578:1998 (not modified).

- 3 - EN 60216-8:2013
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. 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 60085 - Electrical insulation - Thermal evaluation EN 60085 -
and designation
IEC 60216-1 2013 Electrical insulating materials - Thermal EN 60216-1 2013
endurance properties -
Part 1: Ageing procedures and evaluation
of test results
IEC 60216-2 - Electrical insulating materials - Thermal EN 60216-2 -
endurance properties -
Part 2: Determination of thermal endurance
properties of electrical insulating materials -
Choice of test criteria
IEC 60216-3 - Electrical insulating materials - Thermal EN 60216-3 -
endurance properties -
Part 3: Instructions for calculating thermal
endurance characteristics
IEC 60216-4-1 - Electrical insulating materials - Thermal EN 60216-4-1 -
endurance properties -
Part 4-1: Ageing ovens - Single-chamber
ovens
IEC 60216-5 - Electrical insulating materials - Thermal EN 60216-5 -
endurance properties -
Part 5: Determination of relative thermal
endurance index (RTE) of an insulating
material
ISO 291 - Plastics - Standard atmospheres for EN ISO 291 -
conditioning and testing
IEC 60216-8 ®
Edition 1.0 2013-03
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Electrical insulating materials – Thermal endurance properties –

Part 8: Instructions for calculating thermal endurance characteristics using

simplified procedures
Matériaux isolants électriques – Propriétés d'endurance thermique –

Partie 8: Instructions pour le calcul des caractéristiques d'endurance thermique

en utilisant des procédures simplifiées

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX R
ICS 17.220.99; 29.035.01 ISBN 978-2-83220-679-9

– 2 – 60216-8 © IEC:2013
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions, symbols and abbreviations . 7
3.1 Terms and definitions . 7
3.2 Symbols and abbreviations . 8
4 Thermal endurance test procedure . 9
4.1 General . 9
4.2 Number of test specimens . 9
4.3 Preparation of test specimens . 10
4.4 Preparation of ageing processes . 11
5 Simplified numerical and graphical evaluation procedures . 12
5.1 Outline description of procedures . 12
5.2 Simplified calculation procedures . 13
5.2.1 Validity of simplified calculations . 13
5.2.2 Times to end-point . 13
5.2.3 Calculation of the regression line . 14
5.2.4 Calculation of deviation from linearity . 15
5.2.5 Temperature index and halving interval . 15
5.3 Data rescue . 16
5.4 Determination of RTI . 16
5.5 Test report . 18
Bibliography . 19

Figure 1 – Determination of the time to reach the end-point at each temperature –
Property variation (according to IEC 60216-1) . 14
Figure 2 – Thermal endurance graph – Temperature index – Halving interval . 16
Figure 3 – Thermal endurance graph – Relative temperature index . 17

Table 1 – Suggested exposure temperatures and times for TI corresponding to
20 000 h . 12

60216-8 © IEC:2013 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ELECTRICAL INSULATING MATERIALS –
THERMAL ENDURANCE PROPERTIES –

Part 8: Instructions for calculating thermal endurance
characteristics using simplified procedures

FOREWORD
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International Standard IEC 60216-8 has been prepared by IEC technical committee 112:
Evaluation and qualifi
...