IEC 60674-3-1:1998

IEC 60674-3-1 ®
Edition 1.1 2011-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
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

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IEC 60674-3-1 ®
Edition 1.1 2011-12
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
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
PRICE CODE
INTERNATIONALE
CODE PRIX CD
ICS 29.035.20 ISBN 978-2-88912-796-2

– 2 – 60674-3-1  IEC:1998+A1:2011

CONTENTS
FOREWORD . 3

INTRODUCTION . 5

1 General . 6

1.1 Scope . 6

1.2 Normative references . 6

1.3 Classification . 6

2 Designation . 7
3 General requirements . 7
4 Dimensions . 7
4.1 Thickness . 7
4.2 Width . 8
4.3 Length/diameter. 8
5 Properties . 8
5.1 Physical properties . 8
5.2 Electric strength (d.c. test) . 10
5.3 Electrical weak spots . 10
5.4 Thermal endurance . 11
5.5 Wetting tension (types 1b + 1c, 2b + 2c and 3b + 3c only) . 11
5.6 Liquid absorption . 11
5.7 Compatibility with impregnants . 12
5.8 Dissipation factor under impregnated conditions . 12
5.9 Space factor . 12
6 Roll characteristics . 12
6.1 Windability . 12
6.2 Joins . 13
6.3 Roll width (overall width) . 13
6.4 Core . 13
6.5 Labelling . 13

Table 1 – Physical properties . 9
Table 2 – Electric strength (d.c. 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

60674-3-1  IEC:1998+A1:2011 – 3 –

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 consolidated version of IEC 60674-3-1 consists of the first edition (1998)
[documents 15C/862/FDIS and 15C/952/RVD] and its amendment 1 (2011) [documents
15/596/CDV and 15/609/RVC]. It bears the edition number 1.1.
The technical content is therefore identical to the base edition and its amendment and
has been prepared for user convenience. A vertical line in the margin shows where the
base publication has been modified by amendment 1. Additions and deletions are
displayed in red, with deletions being struck through.

– 4 – 60674-3-1  IEC:1998+A1:2011

International Standard IEC 60674-3-1 has been prepared by subcommittee 15C: Specifications,
of IEC technical committee 15: Insulating materials.

The committee has decided that the contents of the base publication and its amendments will
remain unchanged until the stability date indicated on the IEC web site under

"http://webstore.iec.ch" in the data related to the specific publication. At this date, the

publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
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