IEC 60674-3-1:2021

Plastic films for electrical purposes - Part 3: Specifications for individual materials - Sheet 1: Biaxially oriented polypropylene (PP) films for capacitors

IEC 60674-3-1:2021 gives the requirements for biaxially oriented polypropylene film having a smooth or rough surface, corona treated when required for vacuum metallization. The films are for use as dielectric in capacitors. Materials which conform to this specification meet established levels of performance. However, the selection of a material by a user for a specific application is based on the actual requirements necessary for adequate performance in that application and not based on this specification alone. Safety warning: It is the responsibility of the user of the methods contained or referred to in this document to ensure that they are used in a safe manner. This second edition cancels and replaces the first edition published in 1998 and Amendment 1:2011. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- this document has been completely revised editorially and technically and included in the IEC 60674 series of standards;
- the test methods have been updated to reflect today’s state of the art.

Films plastiques à usages électriques - Partie 3: Spécifications pour matériaux particuliers - Feuille 1: Films de polypropylène biorienté (PP) pour condensateurs

L'IEC 60674-3-1:2021 donne les exigences relatives aux films de polypropylène biorienté à surface lisse ou rugueuse, avec traitement par effet couronne, si cela est exigé, pour la métallisation sous vide. Les films sont utilisés comme diélectrique dans les condensateurs. Les matériaux conformes à la présente spécification satisfont à des niveaux établis de performance. Toutefois, le choix d’un matériau par un utilisateur pour une application spécifique repose sur les exigences réelles nécessaires pour obtenir des performances adéquates de l’application concernée, et non sur la seule présente spécification. Mise en garde relative à la sécurité: Il incombe à l’utilisateur des méthodes contenues ou citées en référence dans le présent document d’assurer qu’elles sont utilisées d’une manière sûre. Cette deuxième édition annule et remplace la première édition parue en 1998 ainsi que l’Amendement 1:2011. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- ce document a été entièrement revu sur le plan rédactionnel et technique et inclus dans les normes de la série IEC 60674;
- les méthodes d’essai ont été mises à jour pour refléter l’état actuel de la technique.

General Information

• Status: Published
• Publication Date: 24-Aug-2021
• 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: 23-Sep-2021
• Completion Date: 25-Aug-2021

Relations

• Revises: IEC 60674-3-1:1998/AMD1:2011 - Amendment 1 - Plastic films for electrical purposes - Part 3: Specifications for individual materials - Sheet 1: Biaxially oriented polypropylene (PP) film for capacitors
• Effective Date: 05-Sep-2023
• Revises: IEC 60674-3-1:1998 - Plastic films for electrical purposes - Part 3: Specifications for individual materials - Sheet 1: Biaxially oriented polypropylene (PP) film for capacitors
• Effective Date: 05-Sep-2023

Standards Content (Sample)

IEC 60674-3-1 ®
Edition 2.0 2021-08
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Plastic films for electrical purposes –
Part 3: Specifications for individual materials – Sheet 1: Biaxially oriented
polypropylene (PP) films for capacitors

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 [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 IEC online collection - oc.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always
committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 000 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 18 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc

If you wish to give us your feedback on this publication or
need further assistance, please contact the Customer Service
Centre: [e-mail].
IEC 60674-3-1 ®
Edition 2.0 2021-08
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Plastic films for electrical purposes –
Part 3: Specifications for individual materials – Sheet 1: Biaxially oriented
polypropylene (PP) films for capacitors
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.035.20 ISBN 978-2-8322-4373-2

– 2 – IEC 60674-3-1:2021 RLV © IEC 2021
CONTENTS
FOREWORD . 3
INTRODUCTION . 2
1 General .
1 Scope . 6
2 Normative references. 6
3 Terms and definitions . 6
4 Classification . 7
5 Designation . 7
6 General requirements . 7
7 Dimensions . 7
7.1 Thickness . 7
7.2 Width . 8
7.3 Length/diameter . 8
8 Properties. 8
8.1 Physical properties . 8
8.2 Electric strength (DC test) . 9
8.3 Electrical weak spots . 10
8.4 Thermal endurance . 11
8.5 Wetting tension (types 1b + 1c, 2b + 2c and 3b + 3c only) . 11
8.6 Liquid absorption . 11
8.7 Compatibility with impregnants . 12
8.8 Dissipation factor under impregnated conditions . 12
8.9 Space factor . 12
9 Roll characteristics . 12
9.1 Windability . 12
9.2 Joins . 13
9.3 Roll width (overall width) . 13
9.4 Core . 13
9.5 Labelling . 13
Bibliography . 14

Table 1 – Physical properties . 9
Table 2 – Electric strength (DC test) for types 1, 2 and 3 . 10
Table 3 – Electrical weak spots for types 1, 2 and 3 . 11
Table 4 – Maximum number of joins within a roll (types 1, 2 and 3) . 13

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
PLASTIC FILMS FOR ELECTRICAL PURPOSES –

Part 3: Specifications for individual materials –
Sheet 1: Biaxially oriented polypropylene (PP) films for capacitors

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 or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
This redline version of the official IEC Standard allows the user to identify the changes made to
the previous edition IEC 60674-3-1:1998+AMD1:2011 CSV. A vertical bar appears in the margin
wherever a change has been made. Additions are in green text, deletions are in strikethrough
red text.
– 4 – IEC 60674-3-1:2021 RLV © IEC 2021
IEC 60674-3-1 has been prepared by IEC technical committee 15: Solid electrical insulating
materials.
This second edition cancels and replaces the first edition published in 1998 and
Amendment 1:2011. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) this document has been completely revised editorially and technically and included in the
IEC 60674 series of standards;
b) the test methods have been updated to reflect today’s state of the art.
The text of this International Standard is based on the following documents:
Draft Report on voting
15/909/CDV 15/925/RVC
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
A list of all parts in the IEC 60674 series, published under the general title Plastic films for
electrical purposes, can be found on the IEC website.
Future standards in this series will carry the new general title as cited above. Titles of existing
standards in this series will be updated at the time of the next edition.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The 'colour inside' logo on the cover page of this publication indicates that it
contains colours which are considered to be useful for the correct understanding of its
contents. Users should therefore print this document using a colour printer.

INTRODUCTION
This standard is one of a series which deals with plastic films for electrical purposes. The series
will consist of three parts:
Part 1: Definitions and general requirements (IEC 60674-1);
Part 2: Methods of test (IEC 60674-2);
Part 3: Specifications for individual materials (IEC 60674-3).
This standard contains one of the sheets comprising Part 3, as follows:
Sheet 1: Biaxially oriented (PP) polypropylene films for capacitors.

– 6 – IEC 60674-3-1:2021 RLV © IEC 2021
PLASTIC FILMS FOR ELECTRICAL PURPOSES –

Part 3: Specifications for individual materials –
Sheet 1: Biaxially oriented polypropylene (PP) films for capacitors

1 General
1 Scope
This sheet of IEC 60674-3 gives the requirements for biaxially oriented polypropylene film
having a smooth or rough surface, corona treated when required for vacuum metallization. The
films are for use as dielectric in capacitors.
Materials which conform to this specification meet established levels of performance. However,
the selection of a material by a user for a specific application should be is based on the ac
...

IEC 60674-3-1 ®
Edition 2.0 2021-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Plastic films for electrical purposes –
Part 3: Specifications for individual materials – Sheet 1: Biaxially oriented
polypropylene (PP) films for capacitors

Films plastiques à usages électriques –
Partie 3: Spécifications pour matériaux particuliers – Feuille 1: Films de
polypropylène biorienté (PP) pour condensateurs

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 IEC online collection - oc.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always have
committee, …). It also gives information on projects, replaced access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 000 terminological entries in English
details all new publications released. Available online and once
and French, with equivalent terms in 18 additional languages.
a month by email.
Also known as the International Electrotechnical Vocabulary

(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc

If you wish to give us your feedback on this publication or 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 - Découvrez notre puissant moteur de recherche et consultez
webstore.iec.ch/advsearchform gratuitement tous les aperçus des publications. Avec un
La recherche avancée permet de trouver des publications IEC abonnement, vous aurez toujours accès à un contenu à jour
en utilisant différents critères (numéro de référence, texte, adapté à vos besoins.
comité d’études, …). Elle donne aussi des informations sur les
projets et les publications remplacées ou retirées. Electropedia - www.electropedia.org

Le premier dictionnaire d'électrotechnologie en ligne au monde,
IEC Just Published - webstore.iec.ch/justpublished
avec plus de 22 000 articles terminologiques en anglais et en
Restez informé sur les nouvelles publications IEC. Just
français, ainsi que les termes équivalents dans 16 langues
Published détaille les nouvelles publications parues.
additionnelles. Egalement appelé Vocabulaire
Disponible en ligne et une fois par mois par email.
Electrotechnique International (IEV) en ligne.

Service Clients - webstore.iec.ch/csc
Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
[e-mail].
IEC online collection - oc.iec.ch

IEC 60674-3-1 ®
Edition 2.0 2021-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Plastic films for electrical purposes –

Part 3: Specifications for individual materials – Sheet 1: Biaxially oriented

polypropylene (PP) films for capacitors

Films plastiques à usages électriques –

Partie 3: Spécifications pour matériaux particuliers – Feuille 1: Films de

polypropylène biorienté (PP) pour condensateurs

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.035.20 ISBN 978-2-8322-1017-4

– 2 – IEC 60674-3-1:2021 © IEC 2021
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references. 6
3 Terms and definitions . 6
4 Classification . 6
5 Designation . 7
6 General requirements . 7
7 Dimensions . 7
7.1 Thickness . 7
7.2 Width . 8
7.3 Length/diameter . 8
8 Properties. 8
8.1 Physical properties . 8
8.2 Electric strength (DC test) . 9
8.3 Electrical weak spots . 9
8.4 Thermal endurance . 10
8.5 Wetting tension (types 1b + 1c, 2b + 2c and 3b + 3c only) . 10
8.6 Liquid absorption . 10
8.7 Compatibility with impregnants . 10
8.8 Dissipation factor under impregnated conditions . 10
8.9 Space factor . 11
9 Roll characteristics . 11
9.1 Windability . 11
9.2 Joins . 11
9.3 Roll width (overall width) . 12
9.4 Core . 12
9.5 Labelling . 12
Bibliography . 13

Table 1 – Physical properties . 8
Table 2 – Electric strength (DC test) for types 1, 2 and 3 . 9
Table 3 – Electrical weak spots for types 1, 2 and 3 . 10
Table 4 – Maximum number of joins within a roll (types 1, 2 and 3) . 11

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
PLASTIC FILMS FOR ELECTRICAL PURPOSES –

Part 3: Specifications for individual materials –
Sheet 1: Biaxially oriented polypropylene (PP) films for capacitors

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 or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence between
any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent
rights. IEC shall not be held responsible for identifying any or all such patent rights.
IEC 60674-3-1 has been prepared by IEC technical committee 15: Solid electrical insulating
materials.
This second edition cancels and replaces the first edition published in 1998 and
Amendment 1:2011. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) this document has been completely revised editorially and technically and included in the
IEC 60674 series of standards;
b) the test methods have been updated to reflect today’s state of the art.

– 4 – IEC 60674-3-1:2021 © IEC 2021
The text of this International Standard is based on the following documents:
Draft Report on voting
15/909/CDV 15/925/RVC
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
T
...