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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
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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
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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 /members_experts/refdocs. The main document types developed by IEC are
described in greater detail at /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
...