IEC 60317-25:2020

IEC 60317-25 ®
Edition 4.0 2020-06
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Specifications for particular types of winding wires –
Part 25: Polyester or polyesterimide overcoated with polyamide-imide enamelled
round aluminium wire, class 200

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IEC 60317-25 ®
Edition 4.0 2020-06
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Specifications for particular types of winding wires –

Part 25: Polyester or polyesterimide overcoated with polyamide-imide

enamelled round aluminium wire, class 200

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.060.10 ISBN 978-2-8322-8511-4

– 2 – IEC 60317-25:2020 RLV © IEC 2020
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and, general notes on methods of test and appearance . 7
3.1 Terms and definitions . 7
3.2 General notes on methods of test . 7
3.2.1 Methods of test . 7
3.2.2 Winding wire . 7
3.3 Appearance . 7
4 Dimensions. 7
5 Electrical resistance . 7
6 Elongation . 7
7 Springiness . 8
8 Flexibility and adherence . 8
9 Heat shock . 8
10 Cut-through . 8
11 Resistance to abrasion (nominal conductor diameters up to and including
2,500 mm) . 8
12 Resistance to solvents . 9
13 Breakdown voltage . 9
14 Continuity of insulation . 9
15 Temperature index . 9
16 Resistance to refrigerants . 10
17 Solderability . 10
18 Heat or solvent bonding . 10
19 Dielectric dissipation factor . 10
20 Resistance to transformer oil . 10
21 Loss of mass . 10
23 Pin hole test . 10
30 Packaging . 10
Bibliography . 11

Table 1 – Resistance to abrasion . 9

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SPECIFICATIONS FOR PARTICULAR TYPES OF WINDING WIRES –

Part 25: Polyester or polyesterimide overcoated with polyamide-imide
enamelled round aluminium wire, class 200

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
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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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9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
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This redline version of the official IEC Standard allows the user to identify the changes
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– 4 – IEC 60317-25:2020 RLV © IEC 2020
International Standard IEC 60317-25 has been prepared by IEC technical committee 55:
Winding wires.
This fourth edition cancels and replaces the third edition published in 2010. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) new 3.2.2 containing general notes on winding wire, formerly a part of the Scope;
b) revision to Clause 11 to take into account intermediate nominal conductor diameters;
c) revision to Clause 7 to indicate that the springiness test is inappropriate.
d) revision to Clause 16 to specify only the percentage of extractable matter and the
minimum retained dielectric breakdown voltage.
The text of this International Standard is based on the following documents:
FDIS Report on voting
55/1840/FDIS 55/1857/RVD
Full information on the voting for the approval of this document 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.
This International Standard is to be used in conjunction with IEC 60317-0-3:2008,
Amendment 1:2013 and Amendment 2:2019.
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. It is composed of the following series:
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 60317-25:2020 RLV © IEC 2020
SPECIFICATIONS FOR PARTICULAR TYPES OF WINDING WIRES –

Part 25: Polyester or polyesterimide overcoated with polyamide-imide
enamelled round aluminium wire, class 200

1 Scope
This part of IEC 60317 specifies the requirements of enamelled round aluminium winding
wires of class 200 with a dual coating. The underlying coating is based on polyester or
polyesterimide resin, which may can be modified provided it retains the chemical identity of
the original resin and meets all specified wire requirements. The superimposed coating is
based on polyamide-imide resin.
NOTE A modified resin is a resin that has undergone a chemical change, or contains one or more additives to
enhance certain performance or application characteristics.
Class 200 is a thermal class that requires a minimum temperature index of 200 and a heat
shock temperature of at least 220 °C.
The temperature in degrees Celsius corresponding to the temperature index is not necessarily
that at which it is recommended that the wire be operated and this will depend on many
factors, including the type of equipment involved.
The range of nominal conductor diameters covered by this document is:
– Grade 1: 0,400 0, 250 mm up to and including 3,150 mm;
– Grade 2: 0,400 0,250 mm up to and including 5,000 mm.
The nominal conductor diameters are specified in Clause 4 of IEC 60317-0-3:2008 and
IEC 60317-0-3:2008/AMD1:2013.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their
content constitutes requirements of this document. For dated references, only the edition
cited applies. For undated references, the latest edition of the referenced document (including
any amendments) applies.
IEC 60317-0-3: 2008, Specifications for particular types of winding wires – Part 0-3: General
requirements – Enamelled round aluminium wire
IEC 60317-0-3: 2008/AMD1:2013
IEC 60317-0-3: 2008/AMD2:2019
IEC 60851-4:1996, Winding wires – Test methods – Part 4: Chemical properties
Amendment 1 (1997)
Amendment 2 (1997)
IEC 60851-5:2008, Winding wires – Test methods – Part 5: Electrical properties

3 Terms, definitions and, general notes on methods of test and appearance
3.1 Terms and definitions
For terms and definitions, see 3.1 of IEC 60317-0-3.
In case of inconsistencies between IEC 60317-0-3 and this standard, IEC 60317-25 shall
prevail.
For the purposes of this document, the terms and definitions given in IEC 60317-0-3 apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.2 General notes on methods of test
For general notes on methods of test, see 3.2 of IEC 60317-0-3. In case of inconsistencies
between IEC 60317-0-3 and this standard, IEC 60317-25 shall prevail.
3.2.1 Methods of test
Subclause 3.2.1 of IEC 60317-0-3:2008, IEC 60317-0-3:2008/AMD1:2013 and IEC 60317-0-
3:2008/AMD2:2019 applies. In case of inconsistencies between IEC 60317-0-3 and this
document, IEC 60317-25 shall prevail.
3.2.2 Winding wire
Class 200 is a thermal class that requires a minimum temperature index of 200 and a heat
shock temperature of at least 220 °C.
The temperature in degrees Celsius corresponding to the temperature index is not necessarily
that at which it is recommended that the wire be operated and this will depend on many
factors, including the type of equipment involved.
3.3 Appearance
Subclause 3.3 of IEC 60317-0-3:2008 applies.
4 Dimensions
Clause 4 of IEC 60317-0-3:2008 and IEC 60317-0-3:2008/AMD1:2013 applies.
5 Electrical resistance
Clause 5 of IEC 60317-0-3:2008 and IEC 60317-0-3:2008/AMD2:2019 applies.
6 Elongation
Clause 6 of IEC 60317-0-3:2008 applies.

– 8 – IEC 60317-25:2020 RLV © IEC 2020
7 Springiness
Test appropriate but no requirements specified. Test inappropriate.
8 Flexibility and adherence
Clause 8 of IEC 60317-0-3:2008 applies.
9 Heat shock
Clause 9 of IEC 60317-0-3:2008 applies. The minimum heat shock temperature shall be
220 °C.
10 Cut-through
Test procedure and requirements under consideration.
No failure shall occur within 2 min at 320 °C.
11 Resistance to abrasion (nominal conductor diameters up to and including
2,500 mm)
The wire shall meet the requirements given in Table 1.
For intermediate nominal conductor diameters, the value of the next largest nominal
conductor diameter shall be taken.

Table 1 – Resistance to abrasion
Grade 1 Grade 2
Minimum Minimum
Nominal
Minimum force to Minimum force to
conductor
average force failure of average force failure of
diameter
each each
to failure to failure
measurement measurement
mm N N N N
0,400 1,95 1,65 3,15 2,65
0,450 2,10 1,75 3,40 2,85
0,500 2,25 1,90 3,60 3,05
0,560 2,40 2,05 3,85 3,25
0,630 2,55 2,20 4,15 3,50
0,710 2,75 2,35 4,45 3,75
0,800 2,95 2,50 4,75 4,05
0,900 3,15 2,70 5,10 4,30
1,000 3,40 2,90 5,45 4,60
1,120 3,70 3,10 5,80 4,90
1,250 3,95 3,35 6,25 5,25
1,400 4,25 3,60 6,65 5,45
1,600 4,60 3,90 7,15 5,85
1,800 5,00 4,20 7,70 6,50
2,000 5,30 4,50 8,20 6,95
2,240 5,70 4,80 8,75 7,40
2,500 6,10 5,15 9,30 7,90
For intermediate nominal conductor diameters, the value of the next largest nominal
conductor diameter shall be taken.

12 Resistance to solvents
Clause 12 of IEC 60317-0-3:2008 applies.
13 Breakdown voltage
Clause 13 of IEC 60317-0-3:2008 and IEC 60317-0-3:2008/AMD1:2013 applies. The elevated
temperature shall be 200 °C.
14 Continuity of insulation
Clause 14 of IEC 60317-0-3:2008 applies.
15 Temperature index
Clause 15 of IEC 60317-0-3:2008 and IEC 60317-0-3:2008/AMD1:2013 applies. The minimum
temperature index shall be 200.

– 10 – IEC 60317-25:2020 RLV © IEC 2020
16 Resistance to refrigerants
When tested according to Clause 4 of IEC 60851-4, The percentage of extractable matter
shall not exceed 0,5 %. The requirement for breakdown voltage shall be 75 % of the minimum
specified value.
17 Solderability
Test inappropriate.
18 Heat or solvent bonding
Test inappropriate.
19 Dielectric dissipation factor
Test inappropriate.
20 Resistance to transformer oil
Test inappropriate.
21 Loss of mass
Test appropriate, but no requirements specified.
23 Pin hole test
Test according to Clause 7 of IEC 60851-5 appropriate. Test requirements are under
consideration.
Test inappropriate.
30 Packaging
Clause 30 of IEC 60317-0-3:2008 applies.

Bibliography
IEC 60264 (all parts), Packaging of winding wires
IEC 60317 (all parts), Specifications for particular types of winding wires
IEC 60851 (all parts), Winding wires – Test methods
ISO 3:1973, Preferred numbers – Series of preferred numbers

___________
IEC 60317-25 ®
Edition 4.0 2020-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Specifications for particular types of winding wires –
Part 25: Polyester or polyesterimide overcoated with polyamide-imide enamelled
round aluminium wire, class 200

Spécifications pour types particuliers de fils de bobinage –
Partie 25: Fil de section circulaire en aluminium émaillé revêtu de polyester ou
de polyesterimide avec du polyamide-imide, de classe 200

– 2 – IEC 60317-25:2020 © 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 . 7
3.2.1 Methods of test . 7
3.2.2 Winding wire . 7
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 (nominal conductor diameters up to and including
2,500 mm) . 8
12 Resistance to solvents . 8
13 Breakdown voltage . 8
14 Continuity of insulation . 8
15 Temperature index . 8
16 Resistance to refrigerants . 9
17 Solderability . 9
18 Heat or solvent bonding . 9
19 Dielectric dissipation factor . 9
20 Resistance to transformer oil . 9
21 Loss of mass . 9
23 Pin hole test . 9
30 Packaging . 9
Bibliography . 10

Table 1 – Resistance to abrasion . 8

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SPECIFICATIONS FOR PARTICULAR TYPES OF WINDING WIRES –

Part 25: Polyester or polyesterimide overcoated with polyamide-imide
enamelled round aluminium wire, class 200

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 Nat
...