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IEC 60455-3-8
Edition 2.0 2021-06
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Resin based reactive compounds used for electrical insulation –
Part 3-8: Specifications for individual materials – Resins for cable accessories
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IEC 60455-3-8
Edition 2.0 2021-06
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Resin based reactive compounds used for electrical insulation –
Part 3-8: Specifications for individual materials – Resins for cable accessories
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.035.01 ISBN 978-2-8322-9916-6
– 2 – IEC 60455-3-8:2021 RLV © IEC 2021
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 7
4 Designation . 7
5 Type testing . 8
5.1 General . 8
5.2 Sampling. 9
5.3 Preparation and conditioning. 9
5.3.1 General . 9
5.3.2 Individual components prior to mixing . 9
5.3.3 Resin just after mixing (curing stage) . 9
5.3.4 Cured resin (original) . 9
5.3.5 Cured resin after thermal ageing (dry and wet) . 9
5.4 Sequence of tests . 9
5.5 Test report . 10
6 Test methods . 10
7 Information on supply, packaging, marking and labelling . 19
7.1 Packaging . 19
7.2 Marking and labelling . 19
7.2.1 General . 19
7.2.2 Components . 19
7.2.3 Accessory kit . 19
Annex A (normative) Examination grid . 20
Bibliography . 21
Figure A.1 – Examination grid . 20
Figure A.2 – Position of examination grid on the specimen . 20
Table 1 – Categories of resins . 8
Table 2 – Type tests: test methods and requirements for Polyurethane resins . 11
Table 3 – Type tests: test methods and requirements for Polybutadiene resins . 15
Table 4 – Type tests: test methods and requirements for Epoxy resins . 16
Table 5 – Type tests: test methods and requirements for Silicone resins. 18
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
RESIN BASED REACTIVE COMPOUNDS USED
FOR ELECTRICAL INSULATION –
Part 3-8: Specifications for individual materials –
Resins for cable accessories
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 60455-3-8:2013. 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 60455-3-8:2021 RLV © IEC 2021
International Standard IEC 60455-3-8 has been prepared by IEC technical committee 15: Solid
electrical insulating materials.
This second edition cancels and replaces the first edition published in 2013. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) Clause 1: a link to assemblies according to IEC 60502-4 and EN 50393 was introduced;
b) designation: the categories, especially the mechanical ones, were redefined;
c) type tests: the testing was updated based on the chemical basis of the material;
d) type tests: additional materials were introduced;
e) Annex A: an examination grid was established.
The text of this International Standard is based on the following documents:
FDIS Report on voting
15/937/FDIS 15/941/RVD
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 60455 series, published under the general title Resin based reactive
compounds used for electrical insulation, can be found on the IEC website.
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 part of IEC 60455 is one of a series which deals with specifications for reactive compounds
and their components for electrical insulation. This series consists of three parts:
Part 1: Definitions and general requirements (IEC 60455-1);
Part 2: Methods of test (IEC 60455-2);
Part 3: Specifications for individual materials (IEC 60455-3)
IEC 60455-3-8 is one of the specification sheets comprising Part 3 as follows:
Sheet 8: Resins for cable accessories
– 6 – IEC 60455-3-8:2021 RLV © IEC 2021
RESIN BASED REACTIVE COMPOUNDS USED
FOR ELECTRICAL INSULATION –
Part 3-8: Specifications for individual materials –
Resins for cable accessories
1 Scope
This part of IEC 60455 gives the requirements for resins for power cable accessories that
conform to this specification and meet established levels of performance. However, the
selection of a material by a user for a specific application should will be based on the actual
requirements necessary for adequate performance in that application and not on this
specification alone.
These materials are designed to be used in low and medium voltage cable accessories and as
such, electrical performance is proven
...