IEC 60674-3-8:2011

IEC 60674-3-8 ®
Edition 1.0 2011-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Plastic films for electrical purposes –
Part 3: Specifications for individual materials – Sheet 8: Balanced biaxially
oriented polyethylene naphthalate (PEN) films used for electrical insulation

Films plastiques à usages électriques –
Partie 3: Spécifications pour matériaux particuliers – Feuille 8: Films de
polynaphtalate d'éthylène (PEN), à orientation bi-axiale équilibrée, utilisés
dans l'isolation électrique
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IEC 60674-3-8 ®
Edition 1.0 2011-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Plastic films for electrical purposes –
Part 3: Specifications for individual materials – Sheet 8: Balanced biaxially
oriented polyethylene naphthalate (PEN) films used for electrical insulation

Films plastiques à usages électriques –
Partie 3: Spécifications pour matériaux particuliers – Feuille 8: Films de
polynaphtalate d'éthylène (PEN), à orientation bi-axiale équilibrée, utilisés
dans l'isolation électrique
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX M
ICS 29.035.20 ISBN 978-2-88912-587-6

– 2 – 60674-3-8  IEC:2011
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Classification . 6
4 Designation . 6
5 General requirements . 7
6 Dimensions . 7
6.1 Thickness . 7
6.2 Width . 7
7 Properties . 8
7.1 Properties not dependent on thickness . 8
7.2 Properties dependent on thickness . 9
7.3 Other properties . 10
7.3.1 Thermal endurance . 10
7.3.2 Burning characteristics . 10
8 Roll characteristics for all types . 11
8.1 Roll diameter/film length . 11
8.2 Windability/sag . 11
8.2.1 General . 11
8.2.2 For films of width less than 150 mm . 11
8.2.3 For films of width 150 mm and above . 11
8.3 Joins . 11
8.4 Roll width . 12
8.5 Cores . 12

Table 1 – Properties not dependent on thickness . 8
Table 2 – Properties dependent on thickness . 9
Table 3 – Electric strength (a.c. test) for all types . 10
Table 4 – Electric strength (d.c. test) type 2 only . 10
Table 5 – Windability . 11
Table 6 – Maximum permissible number of joins or breaks per roll . 11
Table 7 – Film width . 12

60674-3-8  IEC:2011 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
PLASTIC FILMS FOR ELECTRICAL PURPOSES –

Part 3: Specifications for individual materials –
Sheet 8: Balanced biaxially oriented polyethylene
naphthalate (PEN) films used for electrical insulation

FOREWORD
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International Standard IEC 60674-3-8 has been prepared by IEC technical committee 15:
Solid electrical insulating materials.
The text of this standard is based on the following documents:
FDIS Report on voting
15/631/FDIS 15/643/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

– 4 – 60674-3-8  IEC:2011
A list of all the parts in the IEC 60674 series, under the general title Plastic films for electrical
purposes, can be found on the IEC website.
The committee has decided that the contents of this publication 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.
60674-3-8  IEC:2011 – 5 –
INTRODUCTION
This International Standard is one of a series which deals with plastic films for electrical
purposes.
The series consists of three parts:
Part 1: Definitions and general requirements (IEC 60674-1).
Part 2: Methods of test (IEC 60674-2).
...