Specifications for particular types of winding wires - Part 2: Solderable polyurethane enamelled round copper wire, class 130, with a bonding layer

IEC 60317-2:2019 specifies the requirements of solderable enamelled round copper winding wire of class 130 with a dual coating. The underlying coating is based on polyurethane resin, which may be modified providing it retains the chemical identity of the original resin and meets all specified wire requirements. The superimposed coating is a bonding layer based on a thermoplastic 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. The range of nominal conductor diameters covered by this standard is:
– Grade 1B: 0,020 mm up to and including 2,000 mm;
– Grade 2B: 0,020 mm up to and including 2,000 mm.
The nominal conductor diameters are specified in Clause 4 of IEC 60317-0-1:2013. This fifth edition cancels and replaces the fourth edition published in 2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
a) addition of heat bonding test loads for nominal conductor diameters up to and including 0,050 mm;
b) addition of pin hole test requirements according to IEC 60317-0-1:2013.
Keywords: insulated wires used for windings

Spécifications pour types particuliers de fils de bobinage - Partie 2: Fil brasable de section circulaire en cuivre émaillé avec polyuréthane, classe 130, avec une couche adhérente

IEC 60317-2:2019 spécifie les exigences relatives au fil de bobinage brasable de section circulaire en cuivre émaillé de classe 130 disposant d’un double revêtement. La sous-couche est à base de résine polyuréthane, qui peut être modifiée à condition de conserver la dénomination chimique de la résine initiale et satisfaire à toutes les exigences spécifiées pour le fil. La surcouche est une couche adhérente à base de résine thermoplastique. NOTE Une résine modifiée est une résine qui a subi une modification chimique, ou qui contient un ou plusieurs additifs pour améliorer certaines performances ou les caractéristiques d’utilisation. La gamme des diamètres nominaux des conducteurs couverte par la présente norme est:
– Grade 1B: 0,020 mm jusques et y compris 2 000 mm;
– Grade 2B: 0,020 mm jusques et y compris 2 000 mm.
Les diamètres nominaux des conducteurs sont spécifiés dans l’Article 4 de l’IEC 60317 0 1:2013. Cette cinquième édition annule et remplace la quatrième édition parue en 2012. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l’édition précédente:
a) ajout des charges d’essai d’adhérence par chaleur pour les diamètres nominaux des conducteurs jusques et y compris 0,050 mm;
b) ajout des exigences d’essais pour la détection des microfissures en immersion selon l’IEC 60317-0-1:2013.
Mots clés : fils isolés utilisés pour les enroulements

General Information

Status
Published
Publication Date
12-Jun-2024
Technical Committee
TC 55 - Winding wires
Drafting Committee
WG 1 - TC 55/WG 1
Current Stage
PPUB - Publication issued
Start Date
08-Aug-2019
Completion Date
23-Aug-2019

Relations

Effective Date
05-Sep-2023
Effective Date
05-Sep-2023

Overview

IEC 60317-2:2019 defines requirements for solderable polyurethane enamelled round copper winding wire, class 130, with a bonding layer. This fifth edition (2019) is a technical revision of the 2012 edition and applies to dual-coated round copper wires where the underlying enamel is polyurethane (possibly modified) and the outer layer is a thermoplastic bonding resin. The standard covers nominal conductor diameters for Grade 1B and Grade 2B from 0.020 mm up to and including 2.000 mm and is intended for insulated wires used for windings in electrical equipment.

Key Topics and Requirements

  • Coating system: dual coating - polyurethane-based enamel (may be modified but must retain chemical identity) plus a thermoplastic bonding layer.
  • Thermal class: Class 130 - minimum temperature index 130 and minimum heat shock temperature 155 °C.
  • Conductor size range: Grade 1B & 2B - 0.020 mm to 2.000 mm (nominal diameters per IEC 60317-0-1).
  • Mechanical and electrical tests referenced or specified: dimensions, electrical resistance, elongation, springiness, flexibility and adherence (peel test constant K = 150 mm), heat shock, cut-through (no failure within 2 min at 170 °C), breakdown voltage (elevated temperature 130 °C), continuity of insulation, dielectric dissipation, resistance to transformer oil, loss of mass, and packaging.
  • Abrasion and bonding: resistance to abrasion requirements for diameters from 0.250 mm to 2.000 mm (values in Table 1); heat and solvent bonding tests including heat-bonding strength for helical and twisted coils.
  • Solderability and pinholes: solderability requirements depend on conductor diameter ranges; pin hole testing per IEC 60317-0-1:2013 is included.
  • Edits in 2019 edition: addition of heat bonding test loads for diameters ≤ 0.050 mm and addition of pin hole test requirements.

Applications and Users

  • Practical uses: specification and quality control of insulated wires used for windings in motors, transformers, inductors, relays, solenoids and other electromagnetic devices where solderability and thermal stability (class 130) are required.
  • Who uses it: wire manufacturers, winding wire quality engineers, motor and transformer designers, procurement specialists, test laboratories, and certification bodies that need to verify compliance with international winding-wire requirements.

Related Standards

  • IEC 60317 series - other particular winding wire specifications.
  • IEC 60317-0-1:2013 - general requirements for enamelled round copper wire (normative reference).
  • IEC 60851 series - test methods for winding wires.
  • IEC 60264 series - packaging of winding wires.

This standard is essential when selecting or specifying solderable polyurethane enamelled round copper wire for electrical windings where consistent thermal, mechanical and soldering performance must be demonstrated.

Standard

IEC 60317-2:2019 RLV - Specifications for particular types of winding wires - Part 2: Solderable polyurethane enamelled round copper wire, class 130, with a bonding layer Released:8/8/2019 Isbn:9782832272817

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36 pages
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Standard

IEC 60317-2:2019+AMD1:2024 CSV - Specifications for particular types of winding wires - Part 2: Solderable polyurethane enamelled round copper wire, class 130, with a bonding layer Released:6/13/2024 Isbn:9782832291887

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IEC 60317-2:2019 - Specifications for particular types of winding wires - Part 2: Solderable polyurethane enamelled round copper wire, class 130, with a bonding layer

English and French language
24 pages
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Frequently Asked Questions

IEC 60317-2:2019 is a standard published by the International Electrotechnical Commission (IEC). Its full title is "Specifications for particular types of winding wires - Part 2: Solderable polyurethane enamelled round copper wire, class 130, with a bonding layer". This standard covers: IEC 60317-2:2019 specifies the requirements of solderable enamelled round copper winding wire of class 130 with a dual coating. The underlying coating is based on polyurethane resin, which may be modified providing it retains the chemical identity of the original resin and meets all specified wire requirements. The superimposed coating is a bonding layer based on a thermoplastic 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. The range of nominal conductor diameters covered by this standard is: – Grade 1B: 0,020 mm up to and including 2,000 mm; – Grade 2B: 0,020 mm up to and including 2,000 mm. The nominal conductor diameters are specified in Clause 4 of IEC 60317-0-1:2013. This fifth edition cancels and replaces the fourth edition published in 2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) addition of heat bonding test loads for nominal conductor diameters up to and including 0,050 mm; b) addition of pin hole test requirements according to IEC 60317-0-1:2013. Keywords: insulated wires used for windings

IEC 60317-2:2019 specifies the requirements of solderable enamelled round copper winding wire of class 130 with a dual coating. The underlying coating is based on polyurethane resin, which may be modified providing it retains the chemical identity of the original resin and meets all specified wire requirements. The superimposed coating is a bonding layer based on a thermoplastic 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. The range of nominal conductor diameters covered by this standard is: – Grade 1B: 0,020 mm up to and including 2,000 mm; – Grade 2B: 0,020 mm up to and including 2,000 mm. The nominal conductor diameters are specified in Clause 4 of IEC 60317-0-1:2013. This fifth edition cancels and replaces the fourth edition published in 2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) addition of heat bonding test loads for nominal conductor diameters up to and including 0,050 mm; b) addition of pin hole test requirements according to IEC 60317-0-1:2013. Keywords: insulated wires used for windings

IEC 60317-2:2019 is classified under the following ICS (International Classification for Standards) categories: 29.060.10 - Wires. The ICS classification helps identify the subject area and facilitates finding related standards.

IEC 60317-2:2019 has the following relationships with other standards: It is inter standard links to IEC 60317-2:2019/AMD1:2024, IEC 60317-2:2012. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

You can purchase IEC 60317-2:2019 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of IEC standards.

Standards Content (Sample)


IEC 60317-2 ®
Edition 5.0 2019-08
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Specifications for particular types of winding wires –
Part 2: Solderable polyurethane enamelled round copper wire, class 130,
with a bonding layer
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IEC 60317-2 ®
Edition 5.0 2019-08
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Specifications for particular types of winding wires –

Part 2: Solderable polyurethane enamelled round copper wire, class 130,

with a bonding layer
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.060.10 ISBN 978-2-8322-7281-7

– 2 – IEC 60317-2:2019 RLV © IEC 2019
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 . 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 from 0,250 mm up to
and including 2,000 mm). 7
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
17.1 General . 8
Nominal conductor diameters up to and including 0,050 mm .
17.2 Nominal conductor diameters over 0,050 mm up to and including 0,100 mm . 9
17.3 Nominal conductor diameter over 0,100 mm . 9
18 Heat or solvent bonding . 9
18.1 Heat bonding . 9
18.1.1 Heat bonding strength of a helical coil . 9
18.1.2 Bond strength of a twisted coil . 10
18.2 Solvent bonding . 11
19 Dielectric dissipation factor . 11
20 Resistance to transformer oil . 11
21 Loss of mass . 11
23 Pin hole test . 11
30 Packaging . 11
Bibliography . 12

Table 1 – Resistance to abrasion . 8
Table 2 – Loads . 10

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

Part 2: Solderable polyurethane enamelled round copper wire,
class 130, with a bonding layer

FOREWORD
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– 4 – IEC 60317-2:2019 RLV © IEC 2019
International Standard IEC 60317-2 has been prepared by IEC technical committee 55:
Winding wires.
This fifth edition cancels and replaces the fourth edition published in 2012. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) addition of heat bonding test loads for nominal conductor diameters up to and including
0,050 mm;
b) addition of pin hole test requirements according to IEC 60317-0-1:2013.
The text of this International Standard is based on the following documents:
FDIS Report on voting
55/1785/FDIS 55/1797/RVD
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 is one 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 60317-2:2019 RLV © IEC 2019
SPECIFICATIONS FOR PARTICULAR TYPES OF WINDING WIRES –

Part 2: Solderable polyurethane enamelled round copper wire,
class 130, with a bonding layer

1 Scope
This part of IEC 60317 specifies the requirements of solderable enamelled round copper
winding wire of class 130 with a dual coating. The underlying coating is based on
polyurethane resin, which may be modified providing it retains the chemical identity of the
original resin and meets all specified wire requirements. The superimposed coating is a
bonding layer based on a thermoplastic 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.
The range of nominal conductor diameters covered by this standard is:
– Grade 1B: 0,020 mm up to and including 2,000 mm;
– Grade 2B: 0,020 mm up to and including 2,000 mm.
The nominal conductor diameters are specified in Clause 4 of IEC 60317-0-1:20082013.
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 60317-0-1:20082013, Specifications for particular types of winding wires – Part 0-1:
General requirements – Enamelled round copper wire
3 Terms, definitions, general notes and appearance
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in 3.1 of IEC 60317-0-
1:2008 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
3.2.1 Methods of test
Subclause 3.2 of IEC 60317-0-1:20082013 applies.
In case of inconsistencies between IEC 60317-0-1 and this standard, IEC 60317-2 shall
prevail.
3.2.2 Winding wire
Class 130 is a thermal class that requires a minimum temperature index of 130 and a heat
shock temperature of at least 155 °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 60317-0-1:20082013 applies.
4 Dimensions
Clause 4 of IEC 60317-0-1:20082013 applies.
5 Electrical resistance
Clause 5 of IEC 60317-0-1:20082013 applies.
6 Elongation
Clause 6 of IEC 60317-0-1:20082013 applies.
7 Springiness
Clause 7 of IEC 60317-0-1:20082013 applies.
8 Flexibility and adherence
Clause 8 of IEC 60317-0-1:20082013 applies. The constant K used for the calculation of the
number of revolutions for the peel test shall be 150 mm.
9 Heat shock
Clause 9 of IEC 60317-0-1:20082013 applies. The minimum heat shock temperature shall be
155 °C.
10 Cut-through
No failure shall occur within 2 min at 170 °C.
11 Resistance to abrasion (nominal conductor diameters from 0,250 mm up to
and including 2,000 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 applies.
– 8 – IEC 60317-2:2019 RLV © IEC 2019
Table 1 – Resistance to abrasion
Grade 1 Grade 2
Nominal
Minimum Minimum Minimum Minimum
conductor average force to average force to
diameter force failure of each force failure of each
to failure measurement to failure measurement

mm
N N N N
0,250 2,30 1,95 4,10 3,50
3,70
0,280 2,50 2,10 4,40
0,315 2,70 2,30 4,75 4,00
0,355 2,90 2,50 5,10 4,30
0,400 3,15 2,70 5,45 4,60
0,450 3,40 2,90 5,80 4,90
3,10 6,20 5,25
0,500 3,65
0,560 3,90 3,30 6,65 5,60
0,630 4,20 3,55 7,10 6,00
0,710 4,50 3,80 7,60 6,45
0,800 4,80 4,10 8,10 6,90
0,900 5,20 4,40 8,70 7,40
1,000 5,60 4,75 9,30 7,90
1,120 6,00 5,15 10,0 8,50
1,250 6,50 5,55 10,7 9,10
1,400 7,00 5,95 11,4 9,70
12,2 10,4
1,600 7,50 6,35
1,800 8,00 6,80 13,1 11,1
2,000 8,60 7,30 14,0 11,9
12 Resistance to solvents
Test inappropriate.
13 Breakdown voltage
Clause 13 of IEC 60317-0-1:20082013 applies. The elevated temperature shall be 130 °C.
14 Continuity of insulation
Clause 14 of IEC 60317-0-1:20082013 applies.
15 Temperature index
Clause 15 of IEC 60317-0-1:20082013 applies. The minimum temperature index shall be 130.
16 Resistance to refrigerants
Test inappropriate.
17 Solderability
17.1 General
17.1 Nominal conductor diameters up to and including 0,050 mm

The temperature of the solder bath shall be (375 ± 5) °C. The maximum immersion time shall
be 2 s.
The surface of the tinned wire shall be smooth and free from holes and enamel residues.
17.2 Nominal conductor diameters over 0,050 mm up to and including 0,100 mm
The temperature of the solder bath shall be (375 ±5) °C. The maximum immersion time shall
be 2 s.
The surface of the tinned wire shall be smooth and free from holes and enamel residues.
17.3 Nominal conductor diameter over 0,100 mm
The temperature of the solder bath shall be (375 ± 5) °C. The maximum immersion (in seconds)
shall be the following multiple of the nominal conductor diameter (in millimetres) with a
minimum of 2 s.
Grade 1B Grade 2B
12 s/mm 16 s/mm
The surface of the tinned wire shall be smooth and free from holes and enamel residues.
18 Heat or solvent bonding
18.1 Heat bonding
18.1.1 Heat bonding strength of a helical coil
18.1.1.1 At room temperature
The specimens shall be prepared according to the test method, and the temperature of the
oven for bonding shall be fixed as agreed between purchaser and supplier for the different
types of bonding enamels. The suggested temperature for polyamide bonding enamel is
(200 ± 2) °C and the suggested temperature for polyvinyl butyral bonding enamel is
(170 ± 2) °C.
Results: when testing the specimens according to the test method, under the action of load
specified in Table 2, no turns (other than possibly the first and the last) shall be separated.
For nominal conductor diameters up to and including 0,050 mm, the test method and
requirements are based upon agreement between purchaser and supplier.
18.1.1.2 At elevated temperature
The specimens shall be prepared and shall be conditioned as described in the test method.
The elevated temperature shall be fixed as agreed between purchaser and supplier for the
different types of bonding enamels. The suggested temperature for polyamide bonding
enamel is (155 ± 2) °C and the suggested temperature for polyvinyl butyral bonding enamel is
(90 ± 2) °C.
Results: when testing the specimens according to the test method, under the action of load
specified in Table 2, no turns (other than possibly the first and the last) shall be separated.
For nominal conductor diameters up to and including 0,050 mm, the test method and
requirements are based upon agreement between purchaser and supplier.

– 10 – IEC 60317-2:2019 RLV © IEC 2019
Table 2 – Loads
Nominal conductor diameter Room temperature Elevated temperature
mm
Over Up to and including Load Load
N N
— 0,050 * *
0,050 0,071 0,05 0,04
0,071 0,100 0,08 0,06
0,100 0,160 0,12
0,08
0,160 0,200 0,25 0,19
0,200 0,315 0,35 0,25
0,315 0,400 0,70 0,55
0,400 0,500 1,10 0,80
0,500 0,630
1,60 1,20
0,630 0,710 2,20 1,70
0,710 0,800 2,80 2,10
0,800 0,900 3,40 2,60
0,900 1,000 4,20 3,20
1,000 1,120
5,00 3,80
1,120 1,250 5,80 4,40
1,250 1,400 6,50 4,90
1,400 1,600 8,50 6,40
1,600 1,800 10,00 7,90
1,800 2,000 12,00
7,90
* For nominal conductor diameters up to and including 0,050 mm, the test method and requirements are based
upon agreement between purchaser and supplier.

18.1.2 Bond strength of a twisted coil
18.1.2.1 At room temperature
A test specimen of diameter 0,315 mm shall be prepared according to the test method. The
time shall be 30 s and the current shall be fixed as agreed between purchaser and supplier.
The suggested value for polyamide or polyvinyl butyral bonding enamel is (2,7 ± 0,1) A.
Results: when testing the specimens according to the test method, under the action of the
deflection force of 100 N, the specimen shall not be broken.
18.1.2.2 At elevated temperature
Specimens of diameter 0,315 mm shall be prepared according to the test method using the
parameters listed in 18.1.2.1 and shall then be conditioned as described in the test method.
The elevated temperature shall be fixed as agreed between purchaser and supplier. The
suggested temperature for polyamide bonding enamel is (155 ± 2) °C and the suggested
temperature for polyvinyl butyral bonding enamel is (90 ± 2) °C.
Results: when testing the specimens according to the test method, under the action of the
deflection force of 10 N, the specimen shall not be broken.

18.2 Solvent bonding
Requirements Test required but not yet under consideration.
19 Dielectric dissipation factor
Test inappropriate.
20 Resistance to transformer oil
Test inappropriate.
21 Loss of mass
Test inappropriate.
23 Pin hole test
Test requirements under consideration.
Clause 23 of IEC 60317-0-1:2013 applies.
30 Packaging
Clause 30 of IEC 60317-0-1:20082013 applies.

– 12 – IEC 60317-2:2019 RLV © IEC 2019
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

___________
IEC 60317-2 ®
Edition 5.0 2019-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Specifications for particular types of winding wires –
Part 2: Solderable polyurethane enamelled round copper wire, class 130,
with a bonding layer
Spécifications pour types particuliers de fils de bobinage –
Partie 2: Fil brasable de section circulaire en cuivre émaillé avec polyuréthane,
classe 130, avec une couche adhérente

– 2 – IEC 60317-2:2019 © IEC 2019
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 . 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 from 0,250 mm up to and
including 2,000 mm) . 7
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
17.1 General . 8
17.2 Nominal conductor diameter up to and including 0,100 mm . 9
17.3 Nominal conductor diameter over 0,100 mm . 9
18 Heat or solvent bonding . 9
18.1 Heat bonding . 9
18.1.1 Heat bonding strength of a helical coil . 9
18.1.2 Bond strength of a twisted coil . 10
18.2 Solvent bonding . 11
19 Dielectric dissipation factor . 11
20 Resistance to transformer oil . 11
21 Loss of mass . 11
23 Pin hole test . 11
30 Packaging . 11
Bibliography . 12

Table 1 – Resistance to abrasion . 8
Table 2 – Loads . 10

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

Part 2: Solderable polyurethane enamelled round copper wire,
class 130, with a bonding layer

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.
International Standard IEC 60317-2 has been prepared by IEC technical committee 55:
Winding wires.
This fifth edition cancels and replaces the fourth edition published in 2012. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) addition of heat bonding test loads for nominal conductor diameters up to and including
0,050 mm;
b) addition of pin hole test requirements according to IEC 60317-0-1:2013.

– 4 – IEC 60317-2:2019 © IEC 2019
The text of this International Standard is based on the following documents:
FDIS Report on voting
55/1785/FDIS 55/1797/RVD
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.
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 60317-2:2019 © IEC 2019
SPECIFICATIONS FOR PARTICULAR TYPES OF WINDING WIRES –

Part 2: Solderable polyurethane enamelled round copper wire,
class 130, with a bonding layer

1 Scope
This part of IEC 60317 specifies the requirements of solderable enamelled round copper
winding wire of class 130 with a dual coating. The underlying coating is based on
polyurethane resin, which may be modified providing it retains the chemical identity of the
original resin and meets all specified wire requirements. The superimposed coating is a
bonding layer based on a thermoplastic 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.
The range of nominal conductor diameters covered by this standard is:
– Grade 1B: 0,020 mm up to and including 2,000 mm;
– Grade 2B: 0,020 mm up to and including 2,000 mm.
The nominal conductor diameters are specified in Clause 4 of IEC 60317-0-1:2013.
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 60317-0-1:2013, Specifications for particular types of winding wires – Part 0-1: General
requirements – Enamelled round copper wire
3 Terms, definitions, general notes and appearance
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60317-0-1 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
3.2.1 Methods of test
Subclause 3.2 of IEC 60317-0-1:2013 applies.
In case of inconsistencies between IEC 60317-0-1 and this standard, IEC 60317-2 shall
prevail.
3.2.2 Winding wire
Class 130 is a thermal class that requires a minimum temperature index of 130 and a heat
shock temperature of at least 155 °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 60317-0-1:2013 applies.
4 Dimensions
Clause 4 of IEC 60317-0-1:2013 applies.
5 Electrical resistance
Clause 5 of IEC 60317-0-1:2013 applies.
6 Elongation
Clause 6 of IEC 60317-0-1:2013 applies.
7 Springiness
Clause 7 of IEC 60317-0-1:2013 applies.
8 Flexibility and adherence
Clause 8 of IEC 60317-0-1:2013 applies. The constant K used for the calculation of the
number of revolutions for the peel test shall be 150 mm.
9 Heat shock
Clause 9 of IEC 60317-0-1:2013 applies. The minimum heat shock temperature shall be
155 °C.
10 Cut-through
No failure shall occur within 2 min at 170 °C.
11 Resistance to abrasion (nominal conductor diameters from 0,250 mm up to
and including 2,000 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 applies.
– 8 – IEC 60317-2:2019 © IEC 2019
Table 1 – Resistance to abrasion
Grade 1 Grade 2
Nominal
Minimum Minimum Minimum Minimum
conductor average force to average force to
diameter force failure of each force failure of each
to failure measurement to failure measurement

mm
N N N N
0,250 2,30 1,95 4,10 3,50
3,70
0,280 2,50 2,10 4,40
0,315 2,70 2,30 4,75 4,00
0,355 2,90 2,50 5,10 4,30
0,400 3,15 2,70 5,45 4,60
0,450 3,40 2,90 5,80 4,90
3,10 6,20 5,25
0,500 3,65
0,560 3,90 3,30 6,65 5,60
0,630 4,20 3,55 7,10 6,00
0,710 4,50 3,80 7,60 6,45
0,800 4,80 4,10 8,10 6,90
0,900 5,20 4,40 8,70 7,40
1,000 5,60 4,75 9,30 7,90
1,120 6,00 5,15 10,0 8,50
1,250 6,50 5,55 10,7 9,10
1,400 7,00 5,95 11,4 9,70
12,2 10,4
1,600 7,50 6,35
1,800 8,00 6,80 13,1 11,1
2,000 8,60 7,30 14,0 11,9
12 Resistance to solvents
Test inappropriate.
13 Breakdown voltage
Clause 13 of IEC 60317-0-1:2013 applies. The elevated temperature shall be 130 °C.
14 Continuity of insulation
Clause 14 of IEC 60317-0-1:2013 applies.
15 Temperature index
Clause 15 of IEC 60317-0-1:2013 applies. The minimum temperature index shall be 130.
16 Resistance to refrigerants
Test inappropriate.
17 Solderability
17.1 General
The temperature of the solder bath shall be (375 ± 5) °C. The maximum immersion time shall
be 2 s.
The surface of the tinned wire shall be smooth and free from holes and enamel residues.
17.2 Nominal conductor diameter up to and including 0,100 mm
The maximum immersion time shall be 2 s.
17.3 Nominal conductor diameter over 0,100 mm
The maximum immersion shall be the following multiple of the nominal conductor diameter (in
millimetres) with a minimum of 2 s.
Grade 1B Grade 2B
12 s/mm 16 s/mm
18 Heat or solvent bonding
18.1 Heat bonding
18.1.1 Heat bonding strength of a helical coil
18.1.1.1 At room temperature
The specimens shall be prepared according to the test method, and the temperature of the
oven for bonding shall be fixed as agreed between purchaser and supplier for the different
types of bonding enamels. The suggested temperature for polyamide bonding enamel is
(200 ± 2) °C and the suggested temperature for polyvinyl butyral bonding enamel is
(170 ± 2) °C.
Results: when testing the specimens according to the test method, under the action of load
specified in Table 2, no turns (other than possibly the first and the last) shall be separated.
For nominal conductor diameters up to and including 0,050 mm, the test method and
requirements are based upon agreement between purchaser and supplier.
18.1.1.2 At elevated temperature
The specimens shall be prepared and shall be conditioned as described in the test method.
The elevated temperature shall be fixed as agreed between purchaser and supplier for the
different types of bonding enamels. The suggested temperature for polyamide bonding
enamel is (155 ± 2) °C and the suggested temperature for polyvinyl butyral bonding enamel is
(90 ± 2) °C.
Results: when testing the specimens according to the test method, under the action of load
specified in Table 2, no turns (other than possibly the first and the last) shall be separated.

– 10 – IEC 60317-2:2019 © IEC 2019
Table 2 – Loads
Nominal conductor diameter Room temperature Elevated temperature
mm
Over Up to and including Load Load
N N
— 0,050 * *
0,050 0,071 0,05 0,04
0,071 0,100 0,08 0,06
0,100 0,160 0,12
0,08
0,160 0,200 0,25 0,19
0,200 0,315 0,35 0,25
0,315 0,400 0,70 0,55
0,400 0,500 1,10 0,80
0,500 0,630
1,60 1,20
0,630 0,710 2,20 1,70
0,710 0,800 2,80 2,10
0,800 0,900 3,40 2,60
0,900 1,000 4,20 3,20
1,000 1,120
5,00 3,80
1,120 1,250 5,80 4,40
1,250 1,400 6,50 4,90
1,400 1,600 8,50 6,40
1,600 1,800 10,00 7,90
1,800 2,000 12,00
7,90
* For nominal conductor diameters up to and including 0,050 mm, the test method and requirements are based
upon agreement between purchaser and supplier.

18.1.2 Bond strength of a twisted coil
18.1.2.1 At room temperature
A test specimen of diameter 0,315 mm shall be prepared according to the test method. The
time shall be 30 s and the current shall be fixed as agreed between purchaser and supplier.
The suggested value for polyamide or polyvinyl butyral bonding enamel is (2,7 ± 0,1) A.
Results: when testing the specimens according to the test method, under the action of the
deflection force of 100 N, the specimen shall not be broken.
18.1.2.2 At elevated temperature
Specimens o
...


IEC 60317-2 ®
Edition 5.1 2024-06
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
colour
inside
Specifications for particular types of winding wires –
Part 2: Solderable polyurethane enamelled round copper wire, class 130, with a
bonding layer
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IEC 60317-2 ®
Edition 5.1 2024-06
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
colour
inside
Specifications for particular types of winding wires –
Part 2: Solderable polyurethane enamelled round copper wire, class 130, with a
bonding layer
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.060.10 ISBN 978-2-8322-9188-7
REDLINE VERSION – 2 – IEC 60317-2:2019+AMD1:2024 CSV
© IEC 2024
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 . 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 from 0,250 mm up to and
including 2,000 mm) . 7
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 . 9
17.1 General . 9
17.2 Nominal conductor diameter up to and including 0,100 mm . 9
17.3 Nominal conductor diameter over 0,100 mm . 9
18 Heat or solvent bonding . 9
18.1 Heat bonding . 9
18.1.1 Heat bonding strength of a helical coil . 9
18.1.2 Bond strength of a twisted coil . 10
18.2 Solvent bonding . 11
19 Dielectric dissipation factor . 11
20 Resistance to transformer oil . 11
21 Loss of mass . 11
23 Pin hole test . 11
30 Packaging . 11
Bibliography . 12

Table 1 – Resistance to abrasion . 8
Table 2 – Loads . 10

© IEC 2024
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SPECIFICATIONS FOR PARTICULAR TYPES OF WINDING WIRES –

Part 2: Solderable polyurethane enamelled round copper wire,
class 130, with a bonding layer

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) IEC draws attention to the possibility that the implementation of this document may involve the use of (a)
patent(s). IEC takes no position concerning the evidence, validity or applicability of any claimed patent rights in
respect thereof. As of the date of publication of this document, IEC had not received notice of (a) patent(s),
which may be required to implement this document. However, implementers are cautioned that this may not
represent the latest information, which may be obtained from the patent database available at
https://patents.iec.ch. 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 60317-2 edition 5.1 contains the fifth edition (2019-08) [documents 55/1785/FDIS and
55/1797/RVD] and its amendment 1 (2024-06) [documents 55/1980/CDV and
55/2016/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.
REDLINE VERSION – 4 – IEC 60317-2:2019+AMD1:2024 CSV
© IEC 2024
International Standard IEC 60317-2 has been prepared by IEC technical committee 55:
Winding wires.
This fifth edition cancels and replaces the fourth edition published in 2012. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) addition of heat bonding test loads for nominal conductor diameters up to and including
0,050 mm;
b) addition of pin hole test requirements according to IEC 60317-0-1:2013.
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.
This International Standard is to be used in conjunction with IEC 60317-0-1:2013 and its
Amendment 1:2019.
The committee has decided that the contents of this document and its amendment 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, or
• revised.
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 2024
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).

REDLINE VERSION – 6 – IEC 60317-2:2019+AMD1:2024 CSV
© IEC 2024
SPECIFICATIONS FOR PARTICULAR TYPES OF WINDING WIRES –

Part 2: Solderable polyurethane enamelled round copper wire,
class 130, with a bonding layer

1 Scope
This part of IEC 60317 specifies the requirements of solderable enamelled round copper
winding wire of class 130 with a dual coating. The underlying coating is based on
polyurethane resin, which may be modified providing it retains the chemical identity of the
original resin and meets all specified wire requirements. The superimposed coating is a
bonding layer based on a thermoplastic 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.
The range of nominal conductor diameters covered by this standard is:
– Grade 1B: 0,020 mm up to and including 2,000 mm;
– Grade 2B: 0,020 mm up to and including 2,000 mm.
The nominal conductor diameters are specified in Clause 4 of IEC 60317-0-1:2013.
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 60317-0-1 :2013, Specifications for particular types of winding wires – Part 0-1: General
requirements – Enamelled round copper wire
IEC 60317-0-1:2013/AMD1:2019
3 Terms, definitions, general notes and appearance
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60317-0-1 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
3.2.1 Methods of test
Subclause 3.2.1 of IEC 60317-0-1:2013 and IEC 60317-0-1:2013/AMD1:2019 applies.

There exists a consolidated edition 4.1:2021 that includes IEC 60317-0-1:2013 and its Amendment 1:2019.

© IEC 2024
In case of inconsistencies between IEC 60317-0-1 and this standard document, IEC 60317-2
shall prevail.
3.2.2 Winding wire
Class 130 is a thermal class that requires a minimum temperature index of 130 and a heat
shock temperature of at least 155 °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 60317-0-1:2013 applies.
4 Dimensions
Clause 4 of IEC 60317-0-1:2013 applies.
5 Electrical resistance
Clause 5 of IEC 60317-0-1:2013 and IEC 60317-0-1:2013/AMD1:2019 applies.
6 Elongation
Clause 6 of IEC 60317-0-1:2013 applies.
7 Springiness
Clause 7 of IEC 60317-0-1:2013 applies.
8 Flexibility and adherence
Clause 8 of IEC 60317-0-1:2013 applies. The constant K used for the calculation of the
number of revolutions for the peel test shall be 150 mm.
9 Heat shock
Clause 9 of IEC 60317-0-1:2013 applies. The minimum heat shock temperature shall be
155 °C.
10 Cut-through
No failure shall occur within 2 min at 170 °C.
11 Resistance to abrasion (nominal conductor diameters from 0,250 mm up to
and including 2,000 mm)
The wire shall meet the requirements given in Table 1.

REDLINE VERSION – 8 – IEC 60317-2:2019+AMD1:2024 CSV
© IEC 2024
For intermediate nominal conductor diameters, the value of the next largest nominal
conductor diameter applies.
Table 1 – Resistance to abrasion
Grade 1 Grade 2
Nominal
Minimum Minimum Minimum Minimum
conductor average force to average force to
diameter force failure of each force failure of each
to failure measurement to failure measurement

mm
N N N N
0,250 2,30 1,95 4,10 3,50
0,280 2,50 2,10 4,40 3,70
0,315 2,70 2,30 4,75 4,00
0,355 2,90 2,50 5,10 4,30
0,400 3,15 2,70 5,45 4,60
0,450 3,40 2,90 5,80 4,90
5,25
0,500 3,65 3,10 6,20
0,560 3,90 3,30 6,65 5,60
0,630 4,20 3,55 7,10 6,00
0,710 4,50 3,80 7,60 6,45
0,800 4,80 4,10 8,10 6,90
4,40 8,70 7,40
0,900 5,20
1,000 5,60 4,75 9,30 7,90
1,120 6,00 5,15 10,0 8,50
1,250 6,50 5,55 10,7 9,10
1,400 7,00 5,95 11,4 9,70
1,600 7,50 6,35 12,2 10,4
1,800 8,00 6,80 13,1 11,1
2,000 8,60 7,30 14,0 11,9
12 Resistance to solvents
Test inappropriate.
13 Breakdown voltage
Clause 13 of IEC 60317-0-1:2013 applies. The elevated temperature shall be 130 °C.
14 Continuity of insulation
Clause 14 of IEC 60317-0-1:2013 applies.
15 Temperature index
Clause 15 of IEC 60317-0-1:2013 applies. The minimum temperature index shall be 130.
16 Resistance to refrigerants
Test inappropriate.
© IEC 2024
17 Solderability
17.1 General
The temperature of the solder bath shall be (375 ± 5) °C. The maximum immersion time shall
be 2 s.
The surface of the tinned wire shall be smooth and free from holes and enamel residues.
17.2 Nominal conductor diameter up to and including 0,100 mm
The maximum immersion time shall be 2 s.
17.3 Nominal conductor diameter over 0,100 mm
The maximum immersion shall be the following multiple of the nominal conductor diameter (in
millimetres) with a minimum of 2 s.
Grade 1B Grade 2B
12 s/mm 16 s/mm
18 Heat or solvent bonding
18.1 Heat bonding
18.1.1 Heat bonding strength of a helical coil
18.1.1.1 At room temperature
The specimens shall be prepared according to the test method, and the temperature of the
oven for bonding shall be fixed as agreed between purchaser and supplier for the different
types of bonding enamels. The suggested temperature for polyamide bonding enamel is
(200 ± 2) °C and the suggested temperature for polyvinyl butyral bonding enamel is
(170 ± 2) °C.
Results: when testing the specimens according to the test method, under the action of load
specified in Table 2, no turns (other than possibly the first and the last) shall be separated.
For nominal conductor diameters up to and including 0,050 mm, the test method and
requirements are based upon agreement between purchaser and supplier.
18.1.1.2 At elevated temperature
The specimens shall be prepared and shall be conditioned as described in the test method.
The elevated temperature shall be fixed as agreed between purchaser and supplier for the
different types of bonding enamels. The suggested temperature for polyamide bonding
enamel is (155 ± 2) °C and the suggested temperature for polyvinyl butyral bonding enamel is
(90 ± 2) °C.
Results: when testing the specimens according to the test method, under the action of load
specified in Table 2, no turns (other than possibly the first and the last) shall be separated.

REDLINE VERSION – 10 – IEC 60317-2:2019+AMD1:2024 CSV
© IEC 2024
Table 2 – Loads
Nominal conductor diameter Room temperature Elevated temperature
mm
Over Up to and including Load Load
N N
— 0,050 * *
0,050 0,071 0,05 0,04
0,071 0,100 0,08 0,06
0,100 0,160 0,12
0,08
0,160 0,200 0,25 0,19
0,200 0,315 0,35 0,25
0,315 0,400 0,70 0,55
0,400 0,500 1,10 0,80
0,500 0,630
1,60 1,20
0,630 0,710 2,20 1,70
0,710 0,800 2,80 2,10
0,800 0,900 3,40 2,60
0,900 1,000 4,20 3,20
1,000 1,120
5,00 3,80
1,120 1,250 5,80 4,40
1,250 1,400 6,50 4,90
1,400 1,600 8,50 6,40
1,600 1,800 10,00 7,90
1,800 2,000 12,00
7,90
* For nominal conductor diameters up to and including 0,050 mm, the test method and requirements are based
upon agreement between purchaser and supplier.

18.1.2 Bond strength of a twisted coil
18.1.2.1 At room temperature
A test specimen of diameter 0,315 mm shall be prepared according to the test method. The
time shall be 30
...


IEC 60317-2 ®
Edition 5.0 2019-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Specifications for particular types of winding wires –
Part 2: Solderable polyurethane enamelled round copper wire, class 130,
with a bonding layer
Spécifications pour types particuliers de fils de bobinage –
Partie 2: Fil brasable de section circulaire en cuivre émaillé avec polyuréthane,
classe 130, avec une couche adhérente

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IEC 60317-2 ®
Edition 5.0 2019-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Specifications for particular types of winding wires –

Part 2: Solderable polyurethane enamelled round copper wire, class 130,

with a bonding layer
Spécifications pour types particuliers de fils de bobinage –

Partie 2: Fil brasable de section circulaire en cuivre émaillé avec polyuréthane,

classe 130, avec une couche adhérente

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.060.10 ISBN 978-2-8322-7205-3

– 2 – IEC 60317-2:2019 © IEC 2019
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 . 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 from 0,250 mm up to and
including 2,000 mm) . 7
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
17.1 General . 8
17.2 Nominal conductor diameter up to and including 0,100 mm . 9
17.3 Nominal conductor diameter over 0,100 mm . 9
18 Heat or solvent bonding . 9
18.1 Heat bonding . 9
18.1.1 Heat bonding strength of a helical coil . 9
18.1.2 Bond strength of a twisted coil . 10
18.2 Solvent bonding . 11
19 Dielectric dissipation factor . 11
20 Resistance to transformer oil . 11
21 Loss of mass . 11
23 Pin hole test . 11
30 Packaging . 11
Bibliography . 12

Table 1 – Resistance to abrasion . 8
Table 2 – Loads . 10

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

Part 2: Solderable polyurethane enamelled round copper wire,
class 130, with a bonding layer

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
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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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Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
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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
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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.
International Standard IEC 60317-2 has been prepared by IEC technical committee 55:
Winding wires.
This fifth edition cancels and replaces the fourth edition published in 2012. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) addition of heat bonding test loads for nominal conductor diameters up to and including
0,050 mm;
b) addition of pin hole test requirements according to IEC 60317-0-1:2013.

– 4 – IEC 60317-2:2019 © IEC 2019
The text of this International Standard is based on the following documents:
FDIS Report on voting
55/1785/FDIS 55/1797/RVD
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.
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 60317-2:2019 © IEC 2019
SPECIFICATIONS FOR PARTICULAR TYPES OF WINDING WIRES –

Part 2: Solderable polyurethane enamelled round copper wire,
class 130, with a bonding layer

1 Scope
This part of IEC 60317 specifies the requirements of solderable enamelled round copper
winding wire of class 130 with a dual coating. The underlying coating is based on
polyurethane resin, which may be modified providing it retains the chemical identity of the
original resin and meets all specified wire requirements. The superimposed coating is a
bonding layer based on a thermoplastic 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.
The range of nominal conductor diameters covered by this standard is:
– Grade 1B: 0,020 mm up to and including 2,000 mm;
– Grade 2B: 0,020 mm up to and including 2,000 mm.
The nominal conductor diameters are specified in Clause 4 of IEC 60317-0-1:2013.
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 60317-0-1:2013, Specifications for particular types of winding wires – Part 0-1: General
requirements – Enamelled round copper wire
3 Terms, definitions, general notes and appearance
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60317-0-1 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
3.2.1 Methods of test
Subclause 3.2 of IEC 60317-0-1:2013 applies.
In case of inconsistencies between IEC 60317-0-1 and this standard, IEC 60317-2 shall
prevail.
3.2.2 Winding wire
Class 130 is a thermal class that requires a minimum temperature index of 130 and a heat
shock temperature of at least 155 °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 60317-0-1:2013 applies.
4 Dimensions
Clause 4 of IEC 60317-0-1:2013 applies.
5 Electrical resistance
Clause 5 of IEC 60317-0-1:2013 applies.
6 Elongation
Clause 6 of IEC 60317-0-1:2013 applies.
7 Springiness
Clause 7 of IEC 60317-0-1:2013 applies.
8 Flexibility and adherence
Clause 8 of IEC 60317-0-1:2013 applies. The constant K used for the calculation of the
number of revolutions for the peel test shall be 150 mm.
9 Heat shock
Clause 9 of IEC 60317-0-1:2013 applies. The minimum heat shock temperature shall be
155 °C.
10 Cut-through
No failure shall occur within 2 min at 170 °C.
11 Resistance to abrasion (nominal conductor diameters from 0,250 mm up to
and including 2,000 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 applies.
– 8 – IEC 60317-2:2019 © IEC 2019
Table 1 – Resistance to abrasion
Grade 1 Grade 2
Nominal
Minimum Minimum Minimum Minimum
conductor average force to average force to
diameter force failure of each force failure of each
to failure measurement to failure measurement

mm
N N N N
0,250 2,30 1,95 4,10 3,50
3,70
0,280 2,50 2,10 4,40
0,315 2,70 2,30 4,75 4,00
0,355 2,90 2,50 5,10 4,30
0,400 3,15 2,70 5,45 4,60
0,450 3,40 2,90 5,80 4,90
3,10 6,20 5,25
0,500 3,65
0,560 3,90 3,30 6,65 5,60
0,630 4,20 3,55 7,10 6,00
0,710 4,50 3,80 7,60 6,45
0,800 4,80 4,10 8,10 6,90
0,900 5,20 4,40 8,70 7,40
1,000 5,60 4,75 9,30 7,90
1,120 6,00 5,15 10,0 8,50
1,250 6,50 5,55 10,7 9,10
1,400 7,00 5,95 11,4 9,70
12,2 10,4
1,600 7,50 6,35
1,800 8,00 6,80 13,1 11,1
2,000 8,60 7,30 14,0 11,9
12 Resistance to solvents
Test inappropriate.
13 Breakdown voltage
Clause 13 of IEC 60317-0-1:2013 applies. The elevated temperature shall be 130 °C.
14 Continuity of insulation
Clause 14 of IEC 60317-0-1:2013 applies.
15 Temperature index
Clause 15 of IEC 60317-0-1:2013 applies. The minimum temperature index shall be 130.
16 Resistance to refrigerants
Test inappropriate.
17 Solderability
17.1 General
The temperature of the solder bath shall be (375 ± 5) °C. The maximum immersion time shall
be 2 s.
The surface of the tinned wire shall be smooth and free from holes and enamel residues.
17.2 Nominal conductor diameter up to and including 0,100 mm
The maximum immersion time shall be 2 s.
17.3 Nominal conductor diameter over 0,100 mm
The maximum immersion shall be the following multiple of the nominal conductor diameter (in
millimetres) with a minimum of 2 s.
Grade 1B Grade 2B
12 s/mm 16 s/mm
18 Heat or solvent bonding
18.1 Heat bonding
18.1.1 Heat bonding strength of a helical coil
18.1.1.1 At room temperature
The specimens shall be prepared according to the test method, and the temperature of the
oven for bonding shall be fixed as agreed between purchaser and supplier for the different
types of bonding enamels. The suggested temperature for polyamide bonding enamel is
(200 ± 2) °C and the suggested temperature for polyvinyl butyral bonding enamel is
(170 ± 2) °C.
Results: when testing the specimens according to the test method, under the action of load
specified in Table 2, no turns (other than possibly the first and the last) shall be separated.
For nominal conductor diameters up to and including 0,050 mm, the test method and
requirements are based upon agreement between purchaser and supplier.
18.1.1.2 At elevated temperature
The specimens shall be prepared and shall be conditioned as described in the test method.
The elevated temperature shall be fixed as agreed between purchaser and supplier for the
different types of bonding enamels. The suggested temperature for polyamide bonding
enamel is (155 ± 2) °C and the suggested temperature for polyvinyl butyral bonding enamel is
(90 ± 2) °C.
Results: when testing the specimens according to the test method, under the action of load
specified in Table 2, no turns (other than possibly the first and the last) shall be separated.

– 10 – IEC 60317-2:2019 © IEC 2019
Table 2 – Loads
Nominal conductor diameter Room temperature Elevated temperature
mm
Over Up to and including Load Load
N N
— 0,050 * *
0,050 0,071 0,05 0,04
0,071 0,100 0,08 0,06
0,100 0,160 0,12
0,08
0,160 0,200 0,25 0,19
0,200 0,315 0,35 0,25
0,315 0,400 0,70 0,55
0,400 0,500 1,10 0,80
0,500 0,630
1,60 1,20
0,630 0,710 2,20 1,70
0,710 0,800 2,80 2,10
0,800 0,900 3,40 2,60
...

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