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IEC 60317-72
Edition 2.0 2020-04
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Specifications for particular types of winding wires –
Part 72: Polyester glass-fibre wound fused silicone resin or/varnish
impregnated, bare or enamelled round copper wire, temperature index 200
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IEC 60317-72
Edition 2.0 2020-04
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Specifications for particular types of winding wires –
Part 72: Polyester glass-fibre wound fused silicone resin or/varnish
impregnated, bare or enamelled round copper wire, temperature index 200
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.060.10 ISBN 978-2-8322-8258-8
– 2 – IEC 60317-72:2020 RLV IEC 2020
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions, general notes and appearance . 6
3.1 Terms and definitions . 6
3.2 General notes . 6
3.2.1 Methods of test . 6
3.2.2 Winding wire . 6
3.3 Appearance . 7
4 Dimensions. 7
5 Electrical resistance . 7
6 Elongation . 7
7 Springiness . 7
8 Flexibility and adherence . 7
9 Heat shock . 7
10 Cut-through . 7
11 Resistance to abrasion . 8
12 Resistance to solvents . 8
13 Breakdown voltage . 8
14 Continuity of insulation . 8
15 Temperature index . 8
16 Resistance to refrigerants . 8
17 Solderability . 8
18 Heat or solvent bonding . 8
19 Dielectric dissipation factor . 8
20 Resistance to transformer oil . 8
21 Loss of mass . 8
23 Pin hole test . 8
30 Packaging . 9
Bibliography . 10
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SPECIFICATIONS FOR PARTICULAR TYPES OF WINDING WIRES –
Part 72: Polyester glass-fibre wound fused, silicone resin or /varnish
impregnated, bare or enamelled round copper wire, temperature index 200
FOREWORD
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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This redline version of the official IEC Standard allows the user to identify the changes
made to the previous edition. 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 60317-72:2020 RLV IEC 2020
International Standard IEC 60317-72 has been prepared by IEC technical committee 55:
Winding wires.
This second edition cancels and replaces the first edition published in 2017. The document
55/1768/CDV, circulated to the National Committees as Amendment 1, led to the publication
of this new edition.
This edition includes the following significant technical changes with respect to the previous
edition:
– modification of the title;
– revision to the Scope;
– revision to 3.2.2.
The text of this standard is based on the first edition, its Amendment 1 and the following
documents:
CDV Report on voting
55/1768/CDV 55/1817/RVC
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all parts in the IEC 60317 series, published under the general title Specifications for
particular types of winding wires, can be found on the IEC website.
The numbering of clauses in this standard is not continuous from Clauses 21 through 30 in
order to reserve space for possible future wire requirements prior to those for wire packaging.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://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 60317 forms an element of a series of standards which deals with insulated
wires used for windings in electrical equipment. The series has three groups describing:
1) Winding wires – Test methods (IEC 60851 series);
2) Specifications for particular types of winding wires (IEC 60317 series);
3) Packaging of winding wires (IEC 60264 series).
– 6 – IEC 60317-72:2020 RLV IEC 2020
SPECIFICATIONS FOR PARTICULAR TYPES OF WINDING WIRES –
Part 72: Polyester glass-fibre wound fused, silicone resin or /varnish
impregnated, bare or enamelled round copper wire, temperature index 200
1 Scope
This part of IEC 60317 specifies the requirements of polyester glass-fibre wound fused,
silicone resin or /varnish impregnated, bare, grade 1 or grade 2 enamelled round copper
winding wire, temperature index 200. The impregnating agent is a silicone containing resin or
varnish.
NOTE For this type of wire, the heat shock test is inappropriate and therefore a heat shock temperature cannot be
established. Consequently, a class based on the requirements for temperature index and heat shock temperature
cannot be specified.
The nominal conductor diameters are specified in IEC 60317-0-10:2017, Clause 4.
2 Normative references
The following documents are referred to in the text in suc
...