IEC 60674-2:2016

Specification for plastic films for electrical purposes - Part 2: Methods of test

IEC 60674-2:2016 is applicable to plastic films used for electrical purposes. This part of IEC 60674 gives methods of test. This second edition cancels and replaces the first edition published in 1988 and Amendment 1 (2001). This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- this document was completely revised editorially and technically and included in the IEC 60674 series of standards;
- the test methods are updated to reflect today's state of the art;
- a method to obtain DC electric strength is now specified according to IEC 60243-2. Keywords: plastic films for electrical purposes
The contents of the corrigendum of December 2017 have been included in this copy.

Spécification pour les films en matière plastique à usages électriques - Partie 2 : Méthodes d'essai

IEC 60674-2: 2016 s'applique aux films en matière plastique à usages électriques. La présente partie de l'IEC 60674 propose des méthodes d'essai. Cette deuxième édition annule et remplace la première édition publiée en 1988 et son Amendement 1 (2001). Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- le présent document a été entièrement révisé sur le plan rédactionnel et technique et a été inclus dans les normes de la série IEC 60674;
- les méthodes d'essai sont mises à jour pour refléter l'état de l'art actuel;
- une méthode permettant d'obtenir la rigidité électrique en courant continu est désormais spécifiée conformément à l'IEC 60243-2.
Mots clés: films en matière plastique à usages électriques.

General Information

• Status: Published
• Publication Date: 17-Nov-2016
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 17.220.99 - Other standards related to electricity and magnetism
• ICS: 29.035.20 - Plastics and rubber insulating materials
• Technical Committee: TC 15 - Solid electrical insulating materials
• Drafting Committee: MT 3 - TC 15/MT 3
• Current Stage: PPUB - Publication issued
• Start Date: 15-Feb-2017
• Completion Date: 18-Nov-2016

Relations

• Amended By: IEC 60674-2:2016/AMD1:2019 - Amendment 1 - Specification for plastic films for electrical purposes - Part 2: Methods of test
• Effective Date: 05-Sep-2023
• Corrected By: IEC 60674-2:2016/COR1:2017 - Corrigendum 1 - Specification for plastic films for electrical purposes - Part 2: Methods of test
• Effective Date: 05-Sep-2023
• Revises: IEC 60674-2:1988 - Specification for plastic films for electrical purposes. Part 2: Methods of test
• Effective Date: 05-Sep-2023
• Revises: IEC 60674-2:1988/AMD1:2001 - Amendment 1 - Specification for plastic films for electrical purposes. Part 2: Methods of test
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60674-2 ®
Edition 2.0 2016-11
INTERNATIONAL
STANDARD
Specification for plastic films for electrical purposes –
Part 2: Methods of test
All rights reserved. Unless otherwise specified, 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
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

IEC Central Office Tel.: [phone]
3, rue de Varembé Fax: [phone]
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Switzerland www.iec.ch
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.

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IEC 60674-2 ®
Edition 2.0 2016-11
INTERNATIONAL
STANDARD
Specification for plastic films for electrical purposes –

Part 2: Methods of test
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 17.220.99; 29.035.20 ISBN 978-2-8322-3747-2

– 2 – IEC 60674-2:2016 © IEC 2016
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 9
2 Normative references . 9
3 General notes on tests . 10
4 Thickness . 10
4.1 General . 10
4.2 Determination of thickness by mechanical scanning . 10
4.2.1 General . 10
4.2.2 Measurement by a single sheet . 11
4.2.3 Measurement by a multi-layer of sheets . 11
4.3 Determination of thickness by gravimetric method . 11
4.3.1 Measurement by a sample . 11
4.3.2 Measurement by a roll . 11
4.4 Crosswise thickness profile and lengthwise variation in thickness . 11
5 Density . 12
6 Width . 12
7 Windability (bias/camber and sag) . 12
7.1 Principle . 12
7.2 General . 12
7.3 Method A . 12
7.3.1 Principle . 12
7.3.2 Measurement of bias/camber . 12
7.3.3 Measurement of sag . 13
7.4 Method B . 14
7.4.1 Principle . 14
7.4.2 Apparatus . 14
7.4.3 Test specimens . 15
7.4.4 Procedure . 15
7.4.5 Result . 15
8 Surface roughness . 15
9 Space factor . 15
10 Coefficient of friction . 16
11 Wetting tension (polyolefine films) . 16
11.1 Test principle and introductory remarks. 16
11.2 Apparatus . 16
11.3 Reagents . 16
11.4 Test specimens . 17
11.5 Conditioning . 17
11.6 Procedure . 17
11.7 Evaluation . 18
11.8 Report. 18
12 Tensile properties . 18
12.1 General . 18
12.2 Test specimens . 18

12.3 Speed of testing . 18
12.4 Result . 18
13 Edge tearing resistance . 19
13.1 General . 19
13.2 Principle . 19
14 Tear resistance . 19
15 Stiffness of film . 19
16 Surface resistivity . 19
17 Volume resistivity . 19
17.1 Method 1: Electrode method . 19
17.2 Method 2: Method for wound capacitor dielectric films or films too thin for
Method 1. 19
17.2.1 Principle . 19
17.2.2 Test specimens . 20
17.2.3 Procedure . 20
17.2.4 Result . 20
18 Dissipation factor and permittivity . 20
18.1 General . 20
18.2 Method 1. 20
18.2.1 General . 20
18.2.2 Sample and specimen handling . 21
18.2.3 Sample conditioning prior to measurement . 21
18.2.4 Measurements with contacting electrodes . 21
18.2.5 Measurements with non-contacting electrodes . 23
18.2.6 Test procedure . 23
18.2.7 Report . 23
18.3 Method 2. 23
18.3.1 General . 23
–4
18.3.2 Dissipation factor at or above 5 × 10 . 24
–4
18.3.3 Dissipation factor below 5 × 10 . 24
19 Dissipation factor under impregnated conditions . 24
20 Electric strength . 24
20.1 AC and DC tests of film sheet sandwiched by metal electrodes . 24
20.2 DC test using a wound capacitor . 24
21 Electrical weak spots . 24
21.1 General . 24
21.2 Method A: Testing narrow strips of film in long lengths . 25
21.2.1 Test equipment . 25
21.2.2 Procedure . 25
21.2.3 Results . 25
21.3 Method B: Testing wide strips of film . 25
21.3.1 General . 25
21.3.2 Test equipment . 25
21.3.3 Procedure . 26
21.3.4 Results . 26
21.4 Method C: Testing of film in rolls . 26
21.4.1 Ge
...

IEC 60674-2 ®
Edition 2.0 2016-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Specification for plastic films for electrical purposes –
Part 2: Methods of test
Spécification pour les films en matière plastique à usages électriques –
Partie 2: Méthodes d'essai
All rights reserved. Unless otherwise specified, 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
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Central Office Tel.: [phone]
3, rue de Varembé [e-mail]
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary

(IEV) online.
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once a month by email. French extracted from the Terms and Definitions clause of
IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or CISPR.

need further assistance, please contact the Customer Service

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Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
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IEC 60674-2 ®
Edition 2.0 2016-11
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Specification for plastic films for electrical purposes –

Part 2: Methods of test
Spécification pour les films en matière plastique à usages électriques –

Partie 2: Méthodes d'essai
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.220.99; 29.035.20 ISBN 978-2-8322-6425-6

– 2 – IEC 60674-2:2016 © IEC 2016
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 9
2 Normative references . 9
3 General notes on tests . 10
4 Thickness . 10
4.1 General . 10
4.2 Determination of thickness by mechanical scanning . 10
4.2.1 General . 10
4.2.2 Measurement by a single sheet . 11
4.2.3 Measurement by a multi-layer of sheets . 11
4.3 Determination of thickness by gravimetric method . 11
4.3.1 Measurement by a sample . 11
4.3.2 Measurement by a roll . 11
4.4 Crosswise thickness profile and lengthwise variation in thickness . 11
5 Density . 12
6 Width . 12
7 Windability (bias/camber and sag) . 12
7.1 Principle . 12
7.2 General . 12
7.3 Method A . 12
7.3.1 Principle . 12
7.3.2 Measurement of bias/camber . 12
7.3.3 Measurement of sag . 13
7.4 Method B . 14
7.4.1 Principle . 14
7.4.2 Apparatus . 14
7.4.3 Test specimens . 15
7.4.4 Procedure . 15
7.4.5 Result . 15
8 Surface roughness . 15
9 Space factor . 15
10 Coefficient of friction . 16
11 Wetting tension (polyolefine films) . 16
11.1 Test principle and introductory remarks. 16
11.2 Apparatus . 16
11.3 Reagents . 16
11.4 Test specimens . 17
11.5 Conditioning . 17
11.6 Procedure . 17
11.7 Evaluation . 18
11.8 Report. 18
12 Tensile properties . 18
12.1 General . 18
12.2 Test specimens . 18

12.3 Speed of testing . 18
12.4 Result . 18
13 Edge tearing resistance . 19
13.1 General . 19
13.2 Principle . 19
14 Tear resistance . 19
15 Stiffness of film . 19
16 Surface resistivity . 19
17 Volume resistivity . 19
17.1 Method 1: Electrode method . 19
17.2 Method 2: Method for wound capacitor dielectric films or films too thin for
Method 1. 19
17.2.1 Principle . 19
17.2.2 Test specimens . 20
17.2.3 Procedure . 20
17.2.4 Result . 20
18 Dissipation factor and permittivity . 20
18.1 General . 20
18.2 Method 1. 20
18.2.1 General . 20
18.2.2 Sample and specimen handling . 21
18.2.3 Sample conditioning prior to measurement . 21
18.2.4 Measurements with contacting electrodes . 21
18.2.5 Measurements with non-contacting electrodes . 23
18.2.6 Test procedure . 23
18.2.7 Report .
...

IEC 60674-2 ®
Edition 2.1 2019-01
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Specification for plastic films for electrical purposes –
Part 2: Methods of test
Spécification pour les films en matière plastique à usages électriques –
Partie 2: Méthodes d'essai
All rights reserved. Unless otherwise specified, 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
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.

Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.

IEC Central Office Tel.: [phone]
3, rue de Varembé [e-mail]
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.

About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.

IEC publications search - webstore.iec.ch/advsearchform Electropedia - www.electropedia.org
The advanced search enables to find IEC publications by a The world's leading online dictionary on electrotechnology,
variety of criteria (reference number, text, technical containing more than 22 000 terminological entries in English
committee,…). It also gives information on projects, replaced and French, with equivalent terms in 16 additional languages.
and withdrawn publications. Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Glossary - std.iec.ch/glossary
details all new publications released. Available online and 67 000 electrotechnical terminology entries in English and
once a month by email. French extracted from the Terms and Definitions clause of
IEC publications issued since 2002. Some entries have been
IEC Customer Service Centre - webstore.iec.ch/csc collected from earlier publications of IEC TC 37, 77, 86 and
If you wish to give us your feedback on this publication or CISPR.

need further assistance, please contact the Customer Service

Centre: [e-mail].
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.

A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.

Recherche de publications IEC - Electropedia - www.electropedia.org
webstore.iec.ch/advsearchform Le premier dictionnaire d'électrotechnologie en ligne au
La recherche avancée permet de trouver des publications IEC monde, avec plus de 22 000 articles terminologiques en
en utilisant différents critères (numéro de référence, texte, anglais et en français, ainsi que les termes équivalents dans
comité d’études,…). Elle donne aussi des informations sur les 16 langues additionnelles. Egalement appelé Vocabulaire
projets et les publications remplacées ou retirées. Electrotechnique International (IEV) en ligne.

IEC Just Published - webstore.iec.ch/justpublished Glossaire IEC - std.iec.ch/glossary
Restez informé sur les nouvelles publications IEC. Just 67 000 entrées terminologiques électrotechniques, en anglais
Published détaille les nouvelles publications parues. et en français, extraites des articles Termes et Définitions des
Disponible en ligne et une fois par mois par email. publications IEC parues depuis 2002. Plus certaines entrées
antérieures extraites des publications des CE 37, 77, 86 et
Service Clients - webstore.iec.ch/csc CISPR de l'IEC.

Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
[e-mail].
IEC 60674-2 ®
Edition 2.1 2019-01
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Specification for plastic films for electrical purposes –

Part 2: Methods of test
Spécification pour les films en matière plastique à usages électriques –

Partie 2: Méthodes d'essai
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 17.220.99; 29.035.20 ISBN 978-2-8322-6482-9

IEC 60674-2 ®
Edition 2.1 2019-01
CONSOLIDATED VERSION
REDLINE VERSION
VERSION REDLINE
colour
inside
Specification for plastic films for electrical purposes –
Part 2: Methods of test
Spécification pour les films en matière plastique à usages électriques –
Partie 2: Méthodes d'essai
– 2 – IEC 60674-2:2016+AMD1:2019 CSV
© IEC 2019
CONTENTS
FOREWORD . 6
INTRODUCTION . 8
1 Scope . 9
2 Normative references . 9
3 General notes on tests . 10
4 Thickness . 10
4.1 General . 10
4.2 Determination of thickness by mechanical scanning . 11
4.2.1 General . 11
4.2.2 Measurement by a single sheet . 11
4.2.3 Measurement by a multi-layer of sheets . 11
4.3 Determination of thickness by gravimetric method . 11
4.3.1 Measurement by a sample . 11
4.3.2 Measurement by a roll . 11
4.4 Crosswise thickness profile and lengthwise variation in thickness . 11
5 Density . 12
6 Width . 12
7 Windability (bias/camber and sag) . 12
7.1 Principle . 12
7.2 General . 12
7.3 Method A . 12
7.3.1 Principle . 12
7.3.2 Measurement of bias/camber . 12
7.3.3 Measurement of sag . 13
7.4 Method B . 14
7.4.1 Principle . 14
7.4.2 Apparatus . 14
7.4.3 Test specimens . 15
7.4.4 Procedure . 15
7.4.5 Result . 15
8 Surface roughness . 15
9 Space factor . 15
10 Coefficient of friction . 16
11 Wetting tension (polyolefine films) . 16
11.1 Test principle and introductory remarks. 16
11.2 Apparatus . 16
11.3 Reagents . 16
11.4 Test specimens . 17
11.5 Conditioning . 17
11.6 Procedure . 18
11.7 Evaluation . 18
11.8 Report. 18
12 Tensile properties . 18
12.1 General . 18
12.2 Test specimens . 18

© IEC 2019
12.3 Speed of testing . 18
12.4 Result . 19
13 Edge tearing resistance . 19
13.1 General . 19
13.2 Principle . 19
14 Tear resistance . 19
15 Stiffness of film . 19
16 Surface resistivity . 19
17 Volume resistivity . 19
17.1 Method 1: Electrode method . 19
17.2 Method 2: Method for wound capacitor dielectric films or films too thin for
Method 1. 20
17.2.1 Principle . 20
17.2.2 Test specimens . 20
17.2.3 Procedure . 20
17.2.4 Result . 20
18 Dissipation factor and permittivity . 21
18.1 General . 21
18.2 Method 1. 21
18.2.1 General . 21
18.2.2 Sample and spec
...