IEC TR 60893-4:2014

IEC TR 60893-4 ®
Edition 2.0 2014-10
TECHNICAL
REPORT
Insulating materials – Industrial rigid laminated sheets based on thermosetting
resins for electrical purposes –
Part 4: Typical values
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IEC TR 60893-4 ®
Edition 2.0 2014-10
TECHNICAL
REPORT
Insulating materials – Industrial rigid laminated sheets based on thermosetting

resins for electrical purposes –

Part 4: Typical values
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
PRICE CODE
P
ICS 29.035.01 ISBN 978-2-8322-1908-9

– 2 – IEC TR 60893-4:2014 © IEC 2014
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Typical values for industrial rigid laminated sheets . 7
33.11 Typical values for industrial rigid laminated sheets based on epoxy resin . 7
33.22 Typical values for industrial rigid laminated sheets based on melamine resin . 7
33.33 Typical values for industrial rigid laminated sheets based on phenolic resin . 7
3.4 Typical values for industrial rigid laminated sheets based on polyester resin . 7
3.5 Typical values for industrial rigid laminated sheets based on silicone resin . 7
3.6 Typical values for industrial rigid laminated sheets based on polyimide resin . 7
Bibliography . 15

Table 1 – Typical values for EP types (Reference: IEC 60893-3-2:2003/AMD1:2011,
Table 5) (1 of 2) . 8
Table 2 – Typical values for MF types (Reference: IEC 60893-3-3:2003/AMD1:2011,
Table 5) . 10
Table 3 – Typical values for PF types (Reference: IEC 60893-3-4:2003/AMD1:2012,

Table 5) (1 of 2) . 11
Table 4 – Typical values for UP types (Reference: IEC 60893-3-5:2003/AMD1:2009,
Table 5) . 13
Table 5 – Typical values for SI types (Reference: IEC 60893-3-6:2003/AMD1:2009,
Table 5) . 14
Table 6 – Typical values for PI type (Reference: IEC 60893-3-7:2003/AMD1:2009,

Table 5) . 14

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INSULATING MATERIALS –
INDUSTRIAL RIGID LAMINATED SHEETS BASED
ON THERMOSETTING RESINS FOR ELECTRICAL PURPOSES –

Part 4: Typical values
FOREWORD
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The main task of IEC technical committees is to prepare International Standards. However, a
technical committee may propose the publication of a technical report when it has collected
data of a different kind from that which is normally published as an International Standard, for
example "state of the art".
IEC 60893-4, which is a technical report, has been prepared by IEC technical committee 15:
Solid electrical insulating materials.
This second edition cancels and replaces the first edition, published in 2003. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
– 4 – IEC TR 60893-4:2014 © IEC 2014
a) the typical values of modulus of elasticity in flexure and of comparative tracking index of
EPGC (Epoxy Glass Cloth) types have been changed;
b) the typical values of new material types introduced in IEC 60893-3-2:2003/AMD1:2011
have been included.
The text of this technical report is based on the following documents:
Enquiry draft Report on voting
15/705/DTR 15/714A/RVC
Full information on the voting for the approval of this technical report 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.
A list of all the parts in the IEC 60893 series, published under the general title Insulating
materials – Industrial rigid laminated sheets based on thermosetting resins 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.
A bilingual version of this publication may be issued at a later date.

INTRODUCTION
This part of IEC 60893 is one of a series which deals with industrial rigid laminated sheets
based on thermosetting resins for electrical purposes.
The series consists of four parts:
– Part 1: Definitions, designations and general requirements (IEC 60893-1)
– Part 2: Methods of test (IEC 60893-2)
– Part 3: Specifications for individual materials (IEC 60893-3)
– Part 4: Typical values (IEC 60893-4)
IEC 60893-4 is a technical report that deals with typical value information that is not part of
the requirements for these laminates.

– 6 – IEC TR 60893-4:2014 © IEC 2014
INSULATING MATERIALS –
INDUSTRIAL RIGID LAMINATED SHEETS BASED
ON THERMOSETTING RESINS FOR ELECTRICAL PURPOSES –

Part 4: Typical values
1 Scope
This part of IEC 60893 serves as a technical report and presents tables of typical values for
properties that are not studied and not given in Table 5 of IEC 60893-3-2:2003/AMD1:2011,
IEC 60893-3-3:2003/AMD1:2011, IEC 60893-3-4:2003/AMD1:2012, IEC 60893-3-
5:2003/AMD1:2009, IEC 60893-3-6:2003/AMD1:2009, IEC 60893-3-7:2003/AMD1:2009. The
purpose of these typical values is to give general guidance and should not be considered as
specification requirements.
The following tables give typical values for the different types of industrial laminated sheets
for electrical purposes described in the Part 3 sheets of IEC 60893.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60893-2:2003, Industrial rigid laminated sheets based on thermosetting resins for
electrical purposes – Part 2: Methods of test
IEC 60893-3-2:2003, Insulating materials − Industrial rigid laminated sheets based on
thermosetting resins for electrical purposes – Part 3-2: Specifications for individual materials
− Requirements for rigid laminated sheets based on epoxy resins
IEC 60893-3-2:2003/AMD1:2011
IEC 60893-3-3:2003, Insulating materials − Industrial rigid laminated sheets based on
thermosetting resins for electrical purposes – Part 3-3: Specifications for individual materials
− Requirements for rigid laminated sheets based on melamine resins
IEC 60893-3-3:2003/AMD1:2011
IEC 60893-3-4:2003, Insulating materials – Industrial rigid laminated sheets based on
thermosetting resins for electrical purposes – Part 3-4: Specifications for individual materials
− Requirements for rigid laminated sheets based on phenolic resins
IEC 60893-3-4:2003/AMD1:2012
IEC 60893-3-5:2003, Insulating materials – Industrial rigid laminated sheets based on
ther
...