IEC TR 60893-4:2014

Insulating materials - Industrial rigid laminated sheets based on thermosetting resins for electrical purposes - Part 4: Typical values

IEC/TR 60893-4:2014(E) 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 tables give typical values for the different types of industrial laminated sheets for electrical purposes described in the Part 3 sheets of IEC 60893. 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:
- the typical values of modulus of elasticity in flexure and of comparative tracking index of EPGC (Epoxy Glass Cloth) types have been changed;
- the typical values of new material types introduced in IEC 60893-3-2:2003/AMD1:2011 have been included. Keywords: industrial rigid laminated sheets

General Information

• Status: Published
• Publication Date: 21-Sep-2017
• ICS: 01 - GENERALITIES. TERMINOLOGY. STANDARDIZATION. DOCUMENTATION
• ICS: 29.035.01 - Insulating materials in general
• Technical Committee: TC 15 - Solid electrical insulating materials
• Drafting Committee: WG 6 - TC 15/WG 6
• Current Stage: PPUB - Publication issued
• Start Date: 28-Feb-2015
• Completion Date: 29-Oct-2014

Relations

• Amended By: IEC TR 60893-4:2014/AMD1:2017 - Amendment 1 - Insulating materials - Industrial rigid laminated sheets based on thermosetting resins for electrical purposes - Part 4: Typical values
• Effective Date: 05-Sep-2023
• Revises: IEC TR 60893-4:2003 - Insulating materials - Industrial rigid laminated sheets based on thermosetting resins for electrical purposes - Part 4: Typical values
• Effective Date: 05-Sep-2023

Standards Content (Sample)

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
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 Fax: [phone]
CH-1211 Geneva 20 [e-mail]
Switzerland www.iec.ch
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 corrigenda or an amendment might have been published.

IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing more than 30 000 terms and
Technical Specifications, Technical Reports and other definitions in English and French, with equivalent terms in 14
documents. Available for PC, Mac OS, Android Tablets and additional languages. Also known as the International
iPad. Electrotechnical Vocabulary (IEV) online.

IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a More than 55 000 electrotechnical terminology entries in
variety of criteria (reference number, text, technical English and French extracted from the Terms and Definitions
committee,…). It also gives information on projects, replaced clause of IEC publications issued since 2002. Some entries
and withdrawn publications. have been collected from earlier publications of IEC TC 37,

77, 86 and CISPR.
IEC Just Published - webstore.iec.ch/justpublished

Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre - webstore.iec.ch/csc
details all new publications released. Available online and If you wish to give us your feedback on this publication or
also once a month by email. need further assistance, please contact the Customer Service
Centre: [e-mail].
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
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.
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
...

IEC TR 60893-4 ®
Edition 2.1 2017-09
CONSOLIDATED VERSION
TECHNICAL
REPORT
colour
inside
Insulating materials – Industrial rigid laminated sheets based on thermosetting
resins for electrical purposes –
Part 4: Typical values
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 Fax: [phone]
CH-1211 Geneva 20 [e-mail]
Switzerland www.iec.ch
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 corrigenda or an amendment might have been published.

IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing 20 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 16 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.

IEC publications search - www.iec.ch/searchpub IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a 65 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and

CISPR.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre - webstore.iec.ch/csc
details all new publications released. Available online and If you wish to give us your feedback on this publication or
also once a month by email. need further assistance, please contact the Customer Service
Centre: [e-mail].
IEC TR 60893-4 ®
Edition 2.1 2017-09
CONSOLIDATED VERSION
TECHNICAL
REPORT
colour
inside
Insulating materials – Industrial rigid laminated sheets based on thermosetting

resins for electrical purposes –

Part 4: Typical values
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.035.01 ISBN 978-2-8322-4851-5

IEC TR 60893-4 ®
Edition 2.1 2017-09
CONSOLIDATED VERSION
REDLINE VERSION
colour
inside
Insulating materials – Industrial rigid laminated sheets based on thermosetting
resins for electrical purposes –
Part 4: Typical values
– 2 – IEC TR 60893-4:2014+AMD1:2017 CSV
© IEC 2017
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 . 16

Table 1 – Typical values for EP types (Reference: IEC 60893-3-2:2003/AMD1:2011,
Table 5) (1 of 2) .
Table 1 – Typical values for SI types (Reference: IEC 60893-3-6:2003/AMD1:2009,
Table 5) . 10
Table 2 – Typical values for MF types (Reference: IEC 60893-3-3:2003/AMD1:2011,

Table 5) . 11
Table 3 – Typical values for PF types (Reference: IEC 60893-3-4:2003/AMD1:2012,
Table 5) (1 of 2) . 12
Table 4 – Typical values for UP types (Reference: IEC 60893-3-5:2003/AMD1:2009,
Table 5) . 14
Table 5 – Typical values for SI types (Reference: IEC 60893-3-6:2003/AMD1:2009,

Table 5) . 15
Table 6 – Typical values for PI type (Reference: IEC 60893-3-7:2003/AMD1:2009,
Table 5) . 15

© IEC 2017
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
INSULATING MATERIALS –
INDUSTRIAL RIGID LAMINATED SHEETS BASED
ON THERMOSETTING RESINS FOR ELECTRICAL PURPOSES –
Part 4: Typical values
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 consolidated version of the official IEC Standard and its amendment has been prepared
for user convenience.
IEC 60893-4 edition 2.1 contains the second edition (2014-10) [documents 15/705/DTR and
15/714A/RVC] and its amendment 1 (2017-09) [documents 15/768/DTR and 15/784/RVC].
In this Redline version, a vertical line in the margin shows where the technical content is
modified by amendment 1. Additions are in green text, deletions are in strikethrough red text. A
separate Final version with all changes accepted is available in this publication.

– 4 – IEC TR 60893-4:2014+AMD1:2017 CSV
© IEC 2017
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 constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
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.
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 the base publication and its amendment 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.
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.
© IEC 2017
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+AMD1:2017 CSV
© IEC 2017
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 lat
...