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 gives the general requirements of enamelled round aluminium winding wires with or without a bonding layer. Technical changes from the previous edition include clarification to appearance requirements, revisions to the wire size ranges applicable to the flexibility and adherence tests, and clarification that pin hole test requirements are under consideration.

Spécifications pour types particuliers de fils de bobinage - Partie 0-3: Exigences générales - Fil de section circulaire en aluminium émaillé

La CEI 60317-0-3:2008 donne les exigences générales pour les fils de bobinage de section circulaire en aluminium émaillé avec ou sans une couche adhérente. Les changements techniques par rapport à l'édition précédente comprennent une clarification concernant les exigences sur l'aspect, des révisions sur les gammes des dimensions des fils s'appliquant aux essais de souplesse et d'adhérence, et une clarification expliquant que les exigences relatives à la détection des microfissures en immersion sont à l'étude.

General Information

• Status: Published
• Publication Date: 28-Apr-2008
• ICS: 29.060.10 - Wires
• Technical Committee: TC 55 - Winding wires
• Drafting Committee: WG 1 - TC 55/WG 1
• Current Stage: DELPUB - Deleted Publication
• Start Date: 11-Sep-2024
• Completion Date: 24-Feb-2023

Relations

• Amended By: IEC 60317-0-3:2008/AMD1:2013 - Amendment 1 - Specifications for particular types of winding wires - Part 0-3: General requirements - Enamelled round aluminum wire
• Effective Date: 05-Sep-2023
• Amended By: IEC 60317-0-3:2008/AMD2:2019 - Amendment 2 - Specifications for particular types of winding wires - Part 0-3: General requirements - Enamelled round aluminium wire
• Effective Date: 05-Sep-2023
• Revises: IEC 60317-0-3:1997 - Specifications for particular types of winding wires - Part 0: General requirements - Section 3: Enamelled round aluminium wire
• Effective Date: 05-Sep-2023
• Revised: IEC 60317-0-3:2024 - Specifications for particular types of winding wires - Part 0-3: General requirements - Enamelled round aluminium wire
• Effective Date: 05-Sep-2023
• Revises: IEC 60317-0-3:1997/AMD2:2004 - Amendment 2 - Specifications for particular types of winding wires - Part 0-3: General requirements - Enamelled round aluminium wire
• Effective Date: 05-Sep-2023
• Revises: IEC 60317-0-3:1997/AMD1:1999 - Amendment 1 - Specifications for particular types of winding wires - Part 0: General requirements - Section 3: Enamelled round aluminium wire
• Effective Date: 05-Sep-2023

Overview

IEC 60317-0-3:2008 specifies the general requirements for enamelled round aluminium winding wires, which may include a bonding layer. This international standard, developed by the International Electrotechnical Commission (IEC), provides essential guidelines for the construction, testing, and performance of enamelled aluminium wires used in electrical windings. The latest amendments and clarifications ensure these wires meet strict quality and safety benchmarks, enabling consistent manufacturing and application across various industries.

This standard forms part of the IEC 60317 series, designed to specify particular types of winding wires, and complements the IEC 60851 series. It focuses on aluminium wires due to their advantageous properties such as light weight, electrical conductivity, and cost-effectiveness compared to copper alternatives.

Key Topics

• Scope and Definitions
  Defines enamelled round aluminium wires including options with or without bonding layers and establishes standardized terminology and test methods.

• Dimensions and Tolerances
  Specifies conductor diameters, permissible out-of-roundness, minimum insulation thickness, and overall diameter limits to ensure mechanical consistency and proper fit in winding applications.

• Electrical Characteristics
  Details requirements for electrical resistance and continuity of insulation to guarantee wire performance in conduction and insulating capacity.

• Mechanical Properties
  Includes test procedures for elongation, springiness, flexibility, adherence of enamel coatings, and resistance to cut-through and abrasion. These ensure durability and reliable operation under winding stresses.

• Thermal and Chemical Resistance
  Encompasses heat shock testing, temperature index determination, resistance to refrigerants, transformers oil, solvents, and solderability, underscoring the wire’s ability to function in harsh electrical and environmental conditions.

• Electrical Safety Tests
  Establishes breakdown voltage criteria and dielectric dissipation factors to prevent insulation failures and maintain electrical safety.

• Packaging and Quality Control
  Addresses packaging requirements that protect the wires during transport and storage, maintaining quality until installation.

• Updates and Amendments
  The 2019 amendment clarifies appearance requirements, revises wire size applicability for flexibility and adherence tests, and addresses ongoing considerations related to pin hole test requirements.

Applications

The enamelled round aluminium winding wires standardized by IEC 60317-0-3:2008 are widely used in:

• Electric Motors and Generators
  Providing lightweight, efficient winding conductors for coils and stators.

• Transformers and Inductors
  Facilitating electrical insulation and durable winding performance in varying thermal environments.

• Electrical Appliances
  Serving as conductors in consumer electronics and industrial equipment where weight reduction and cost efficiency are key.

• Power Distribution and Electronics
  Ensuring reliability in electromagnetic coils, relays, and solenoids across power conversion and control systems.

Compliance with IEC 60317-0-3 guarantees that aluminium winding wires meet internationally recognized standards, ensuring equipment safety, performance, and interchangeability in global markets.

Related Standards

• IEC 60317 Series
  Covers specifications for other types of winding wires, including copper and different enamel systems.

• IEC 60851 Series
  Provides detailed test methods for winding wires, complementing the material specifications in IEC 60317.

• IEC 60085
  Concerns electrical insulation systems – thermal evaluation and classification relevant to enamel coatings.

• ISO/IEC Directives, Part 2
  Guides the preparation and drafting of IEC standards, ensuring clarity and uniformity.

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Keywords: IEC 60317-0-3, enamelled aluminium wire, winding wire standards, aluminium round wire, electrical insulation, winding wire specifications, electrical testing, enamel coating, electrical wire durability, IEC winding wire standard.

Standards Content (Sample)

IEC 60317-0-3
Edition 3.0 2008-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Specifications for particular types of winding wires –
Part 0-3: General requirements – Enamelled round aluminium wire

Spécifications pour types particuliers de fils de bobinage –
Partie 0-3: Exigences générales – Fil de section circulaire en aluminium émaillé

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IEC 60317-0-3
Edition 3.0 2008-04
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Specifications for particular types of winding wires –
Part 0-3: General requirements – Enamelled round aluminium wire

Spécifications pour types particuliers de fils de bobinage –
Partie 0-3: Exigences générales – Fil de section circulaire en aluminium émaillé

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
S
CODE PRIX
ICS 29.060.10 ISBN 2-8318-9730-0

– 2 – 60317-0-3 © IEC:2008
CONTENTS
FOREWORD.4
INTRODUCTION.6

1 Scope.7
2 Normative references.7
3 Terms, definitions and general notes on methods of tests and appearance.7
3.1 Definitions .7
3.2 General notes on methods of test .8
3.3 Appearance .9
4 Dimensions.9
4.1 Conductor diameter .9
4.2 Out of roundness of conductor .11
4.3 Minimum increase in diameter due to the insulation and the bonding layer.11
4.3.1 Enamelled wires without a bonding layer .11
4.3.2 Enamelled wires with a bonding layer .11
4.4 Maximum overall diameter .11
4.4.1 Enamelled wires without a bonding layer .11
4.4.2 Enamelled wires with a bonding layer .11
5 Electrical resistance.12
6 Elongation .12
7 Springiness.12
8 Flexibility and adherence .12
8.1 Mandrel winding test (nominal conductor diameters up to and including 1,600
mm).12
8.2 Stretching test (nominal conductor diameters over 1,000 mm).12
8.3 Jerk test (nominal conductor diameters up to and including 1,000 mm) .13
8.4 Peel test (nominal conductor diameters over 1,000 mm) .13
9 Heat shock .13
9.1 Nominal conductor diameters up to and including 1,600 mm .13
9.2 Nominal conductor diameters over 1,600 mm.13
10 Cut-through .13
11 Resistance to abrasion .13
12 Resistance to solvents .13
13 Breakdown voltage .13
13.1 General .13
13.2 Nominal conductor diameters up to and including 2,500 mm .14
13.3 Nominal conductor diameters over 2,500 mm.14
14 Continuity of insulation (nominal conductor diameters up to and including
1,600 mm) .15
15 Temperature index.15
16 Resistance to refrigerants .15
17 Solderability.15

60317-0-3 © IEC:2008 – 3 –
18 Heat or solvent bonding .15
19 Dielectric dissipation factor .15
20 Resistance to transformer oil .15
21 Loss of mass .16
23 Pin hole test .16
30 Packaging .16

Annex A (informative) Dimensions for intermediate nominal conductor diameters (R 40) .17
Annex B (informative) Method for the calculation of linear resistance .19
Annex C (informative) Resistance .20

Bibliography .21

Table 1 – Dimensions of enamelled wires (R 20) .10
Table 2 – Dimensions of enamelled wires with a bonding layer (R 20).11
Table 3 – Elongation .12
Table 4 – Mandrel winding.12
Table 5 – Heat shock .13
Table 6 – Breakdown voltage .14
Table 7 – Breakdown voltage .14
Table 8 – Continuity of insulation.15
Table A.1 – Dimensions of enamelled wires (R 40) .17
Table A.2 – Dimensions of enamelled wires with a bonding layer (R 40).18
Table C.1 – Electrical resistances .20

– 4 – 60317-0-3 © IEC:2008
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SPECIFICATIONS FOR PARTICULAR TYPES OF WINDING WIRES –

Part 0-3: General requirements –
Enamelled round aluminium wire

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
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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
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3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
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5) IEC provides no marking procedure to indicate its approval and cannot be rendered responsible for any
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6) All users should ensure that they have the latest edition of this publication.
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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 60317-0-3 has been prepared by IEC technical committee 55:
Winding wires.
This third edition cancels and replaces the second edition published in 1997 and its
amendments 1 (1999) and 2 (2004) and constitutes a technical revision.
Technical changes from the previous edition include clarification to appearance requirements,
revisions to the wire size ranges applicable to the flexibility and adherence tests, and
clarification that pin hole test requirements are under consideration.

60317-0-3 © IEC:2008 – 5 –
The text of this standard is based on the following documents:
FDIS Report on voting
55/1056/FDIS 55/1068/RVD
Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all the parts in the IEC 60317 series, under the general title Specifications for particular
types of winding wires, can be found on the IEC website.
This standard is to be read in conjunction with the IEC 60851 series. The clause numbers used
in this part of IEC 60317 are identical with the respective test numbers of IEC 60851.
In case of inconsistencies between IEC 60851 and this part of IEC 60317, the latter shall
prevail.
The committee has decided that the contents of this publication will remain unchanged until the
maintenance result date indicated on the IEC web site under "http://webstore.iec.ch" in the data
related to the specific publication. At this date, the publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
– 6 – 60317-0-3 © IEC:2008
INTRODUCTION
This part of IEC 60317 is one of a series that deals with insulated wires used for windings in
electrical equipment. The series has three groups describing
1) winding wires and test methods (IEC 60851);
2) specifications for particular types of winding wires (IEC 60317);
3) packaging of winding wires (IEC 60264).

60317-0-3 © IEC:2008 – 7 –
SPECIFICATIONS FOR PARTICULAR TYPES OF WINDING WIRES –

Part 0-3: General requirements –
Enamelled round aluminium wire

1 Scope
This part of IEC 60317 specifies the general requirements of enamelled round aluminium
winding wires with or without a bonding layer.
The range of nominal conductor diameters is given in the relevant specification sheet.
When reference is made to a winding wire according to a standard of the IEC 60317 series
mentioned under Clause 2, the following information is given in the description:
– reference to IEC specification;
– nominal conductor diameter, in millimetres;
– grade.
EXAMPLE: IEC 60317-14 – 0,500 Grade 1
2 Normative references
The following referenced documents are indispensable for the application 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 60172, Test procedure for the determination of the temperature index of enamelled winding
wires
IEC 60851 (all parts), Winding wires – Test methods
ISO 3, Preferred numbers – Series of preferred numbers
3 Terms, definitions and general notes on methods of tests and appearance
For the purposes of this document, the following terms, definitions and general notes apply.
3.1 Definitions
3.1.1
bonding layer
material which is deposited on an enamelled wire and which has the specific function of
bonding wires together
3.1.2
class
the thermal performance of a wire expressed by the temperature index and the heat shock
temperature
– 8 – 60317-0-3 © IEC:2008
3.1.3
coating
material which is deposited on a conductor or wire by a suitable means and then dried and/or
cured
3.1.4
conductor
the bare metal after removal of the insulation
3.1.5
crack
opening in the insulation which exposes the conductor to view at the stated magnification
3.1.6
dual coating
insulation composed of two different materials, an underlying and a superimposed coating
3.1.7
enamelled wire
wire coated with an insulation of cured resin
3.1.8
grade
the range of thickness of the insulation of a wire
3.1.9
insulation
coating or covering on the conductor with the specific function of withstanding voltage
3.1.10
nominal conductor dimension
designation of the conductor size in accordance with IEC 60317
3.1.11
normal vision
20/20 vision, with corrective lenses, if necessary
3.1.12
winding wire
wire used for winding a coil to provide a magnetic field
3.1.13
wire
conductor coated or covered with an insulation
3.2 General notes on methods of test
All methods of test to be used for this part of IEC 60317 are given in IEC 60851.
The clause numbers used in this standard are identical with the respective test numbers of
IEC 60851.
In case of inconsistencies between the publication on methods of test and this standard,
IEC 60317-0-3 shall prevail.
60317-0-3 © IEC:2008 – 9 –
Where no specific range of nominal conductor diameters is given for a test, the test applies to
all nominal conductor diameters covered by the specification sheet.
Unless otherwise specified, all tests shall be carried out at a temperature from 15 °C to 35 °C
and a relative humidity from 45 % to 75 %. Before measurements are made, the specimens
shall be preconditioned under these atmospheric conditions for a time sufficient to allow the
specimens to reach stability.
The wire to be tested shall be removed from the packaging in such a way that the wire will not
be subjected to tension or unnecessary bends. Before each test, sufficient wire should be
discarded to ensure that any damaged wire is not included in the test specimens.
3.3 Appearance
The film coating shall be essentially smooth and continuous, free from streaks, blisters and
foreign material when examined with normal vision, as wound on the original spool or reel.
When agreed upon between the user and supplier, examination using 6× to 10× magnification
shall be used for wires with a nominal diameter less than 0,10 mm.
4 Dimensions
4.1 Conductor diameter
The series of preferred nominal conductor diameters shall correspond to series R 20 according
to ISO 3. The actual values and their tolerances are given in Tables 1 and 2.
The series of intermediate diameters from which the user may select intermediate nominal
conductor diameters, when required for technical reasons, shall correspond to series R 40
according to ISO 3. The actual values and their tolerances are given in Annex A.
The conductor diameter shall not differ from the nominal diameter by more than the limit given
in Tables 1 or 2.
– 10 – 60317-0-3 © IEC:2008
Table 1 – Dimensions of enamelled wires (R 20)
Nominal Conductor Minimum increase Maximum overall
conductor tolerance due to the insulation diameter
diameter ± mm mm
mm mm
Grade 1 Grade 2 Grade 3 Grade 1 Grade 2 Grade 3

0,250 0,004 0,017 0,032 0,048 0,281 0,297 0,312
0,280 0,004 0,018 0,033 0,050 0,312 0,329 0,345
0,315 0,004 0,019 0,035 0,053 0,349 0,367 0,384
0,355 0,004 0,020 0,038 0,057 0,392 0,411 0,428
0,400 0,005 0,021 0,040 0,060 0,439 0,459 0,478

0,450 0,005 0,022 0,042 0,064 0,491 0,513 0,533
0,500 0,005 0,024 0,045 0,067 0,544 0,566 0,587
0,560 0,006 0,025 0,047 0,071 0,606 0,630 0,653
0,630 0,006 0,027 0,050 0,075 0,679 0,704 0,728
0,710 0,007 0,028 0,053 0,080 0,762 0,789 0,814

0,800 0,008 0,030 0,056 0,085 0,855 0,884 0,911
0,900 0,009 0,032 0,060 0,090 0,959 0,989 1,018
1,000 0,010 0,034 0,063 0,095 1,062 1,094 1,124
1,184 1,217 1,248
1,120 0,011 0,034 0,065 0,098
1,250 0,013 0,035 0,067 0,100 1,316 1,349 1,381

1,400 0,014 0,036 0,069 0,103 1,468 1,502 1,535
1,600 0,016 0,038 0,071 0,107 1,670 1,706 1,740
1,800 0,018 0,039 0,073 0,110 1,872 1,909 1,944
2,000 0,020 0,040 0,075 0,113 2,074 2,112 2,148
2,240 0,022 0,041 0,077 0,116 2,316 2,355 2,392

2,500 0,025 0,042 0,079 0,119 2,578 2,618 2,656
2,800 0,028 0,043 0,081 0,123 2,880 2,922 2,961
3,150 0,032 0,045 0,084 0,127 3,233 3,276 3,316
3,550 0,036 0,046 0,086 0,130 3,635 3,679 3,721
4,000 0,040 0,047 0,089 0,134 4,088 4,133 4,176

4,500 0,045 0,049 0,092 0,138 4,591 4,637 4,681
5,000 0,050 0,050 0,094 0,142 5,093 5,141 5,186

NOTE 1 National committees may use minimum overall diameter requirements provided they are based on the
minimum increases.
NOTE 2 For intermediate nominal conductor diameters, the minimum increase figure corresponding to the next
larger nominal conductor diameter should be taken.
NOTE 3 The dimensions of intermediate nominal conductor diameters for R 40 series are given in Annex A.

60317-0-3 © IEC:2008 – 11 –
Table 2 – Dimensions of enamelled wires with a bonding layer (R 20)
Nominal Conductor Minimum increase Minimum Maximum overall
conductor tolerance underlying coating increase diameter
diameter ± mm bonding layer mm
mm mm mm
Grade 1B Grade 2B Grade 1B Grade 2B

0,250 0,004 0,017 0,032 0,013 0,300 0,316
0,280 0,004 0,018 0,033 0,013 0,331 0,348
0,315 0,004 0,019 0,035 0,014 0,369 0,387
0,355 0,004 0,020 0,038 0,015 0,413 0,432
0,400 0,005 0,021 0,040 0,016 0,461 0,481

0,514 0,536
0,450 0,005 0,022 0,042 0,016
0,500 0,005 0,024 0,045 0,017 0,568 0,590
0,560 0,006 0,025 0,047 0,017 0,630 0,654
0,630 0,006 0,027 0,050 0,018 0,704 0,729
0,710 0,007 0,028 0,053 0,019 0,788 0,815

0,800 0,008 0,030 0,056 0,020 0,882 0,911
0,900 0,009 0,032 0,060 0,020 0,987 1,017
1,000 0,010 0,034 0,063 0,021 1,091 1,123
1,120 0,011 0,034 0,065 0,022 1,214 1,247
1,250 0,013 0,035 0,067 0,022 1,346 1,379

1,400 0,014 0,036 0,069 0,023 1,499 1,533
1,600 0,016 0,038 0,071 0,023 1,702 1,738
1,800 0,018 0,039 0,073 0,024 1,905 1,942
2,000 0,020 0,040 0,075 0,025 2,108 2,146

NOTE 1 National committees may use minimum overall diameter requirements provided they are based on the
minimum increases.
NOTE 2 For intermediate nominal conductor diameters, the minimum increase figure corresponding to the next
larger nominal conductor diameter should be taken.
NOTE 3 The dimensions of intermediate nominal conductor diameters for R 40 series are given in Annex A.

4.2 Out of roundness of conductor
The difference between the minimum and maximum diameter, at any one point, shall not be
more than the figure given in column 2 of Table 1 or Table 2.
4.3 Minimum increase in diameter due to the insulation and the bonding layer
4.3.1 Enamelled wires without a bonding layer
The minimum increase in diameter due to the insulation shall not be less than the values given
in Table 1.
4.3.2 Enamelled wires with a bonding layer
The minimum increase in diameter due to the insulation including the bonding layer shall not be
less than the values given in Table 2.
4.4 Maximum overall diameter
4.4.1 Enamelled wires without a bonding layer
The maximum overall diameter shall not exceed the values given in Table 1.
4.4.2 Enamelled wires with a bonding layer
The maximum overall diameter shall not exceed the values given in Table 2.

– 12 – 60317-0-3 © IEC:2008
5 Electrical resistance
No resistance values are specified.
By agreement between purchaser and supplier, resistance measurements may be made for
nominal conductor diameters up to and including 1,000 mm. In case of such an agreement, the
resistance at 20 °C shall be within the limits given in Annex C.
NOTE The nominal resistance is given in Annex C.
6 Elongation
The elongation at fracture and tensile strength shall not be less than the value given in Table 3.
Table 3 – Elongation
Nominal conductor Elongation Tensile
diameter minimum strength
mm
minimum
Over Up to and
–2
% N⋅mm
including
– 0,400 10 90
0,400 1,000 12 90
1,000 2,000 15 80
2,000 5,000 15 70
7 Springiness
Test appropriate but no requirements specified.
8 Flexibility and adherence
8.1 Mandrel winding test (nominal conductor diameters up to and including 1,600 mm)
The coating shall show no crack after the wire has been wound on a mandrel as specified in
Table 4.
Table 4 – Mandrel winding
Nominal conductor diameter
mm
Mandrel
diameter
Up to and
Over
including
– 1,600 3d*
*d is the nominal diameter of the wire.

8.2 Stretching test (nominal conductor diameters over 1,000 mm)
The coating shall show no crack after the wire has been elongated 15 %.

60317-0-3 © IEC:2008 – 13 –
8.3 Jerk test (nominal conductor diameters up to and including 1,000 mm)
The coating shall show no crack or loss of adhesion.
8.4 Peel test (nominal conductor diameters over 1,000 mm)
Test appropriate but no requirements specified.
9 Heat shock
9.1 Nominal conductor diameters up to and including 1,600 mm
The coating shall show no crack. The mandrel diameter shall be as specified in Table 5. The
minimum heat shock temperature is given in the relevant specification sheet.
Table 5 – Heat shock
Nominal conductor diameter
mm
Mandrel
diameter
Up to and
Over
including
– 1,600 3d*
*d is the nominal diameter of the wire.

9.2 Nominal conductor diameters over 1,600 mm
The coating shall show no crack after having been elongated 15 %. The minimum heat shock
temperature is given in the relevant specification sheet.
10 Cut-through
For requirements see the relevant specification sheet.
11 Resistance to abrasion
For requirements, see the relevant specification sheet.
12 Resistance to solvents
Standard solvent
Using a pencil of hardness "H" the coating shall not be removed.
13 Breakdown voltage
13.1 General
The wire shall meet the requirements given in 13.2 and 13.3, respectively, when tested at room
temperature and at elevated temperature when this is required by the purchaser.
The elevated temperature is given in the relevant specification sheet.

– 14 – 60317-0-3 © IEC:2008
13.2 Nominal conductor diameters up to and including 2,500 mm
At least four of the five specimens tested shall not break down at a voltage less than or equal
to that given in Table 6.
Table 6 – Breakdown voltage
Minimum breakdown voltage (r.m.s. value)
Nominal V
conductor Grade 1 and grade 1B Grade 2 and grade 2B Grade 3
diameter
Room Elevated Room Elevated Room Elevated
mm
temperature temperature temperature temperature temperature temperature

0,250 2 100 1 600 3 900 2 900 5 500 4 100
0,280 2 200 1 700 4 000 3 000 5 800 4 400
0,315 2 200 1 700 4 100 3 100 6 100 4 600
0,355 2 300 1 700 4 300 3 200 6 400 4 800

0,400 2 300 1 700 4 400 3 300 6 600 5 000
0,450 2 300 1 700 4 400 3 300 6 800 5 100
0,500 2 400 1 800 4 600 3 500 7 000 5 300
0,560 2 500 1 900 4 600 3 500 7 100 5 300

0,630 2 600 2 000 4 800 3 600 7 100 5 300
0,710 2 600 2 000 4 800 3 600 7 200 5 400
0,800 2 600 2 000 4 900 3 700 7 400 5 600
0,900 2 700 2 000 5 000 3 800 7 600 5 700

1,000
up to and 2 700 2 000 5 000 3 800 7 600 5 700
including
2,500
NOTE For intermediate nominal conductor diameters, the figure of the next larger nominal conductor diameter
should be taken.
13.3 Nominal conductor diameters over 2,500 mm
At least four of the five specimens tested shall not break down at a voltage less than or equal
to that given in Table 7.
Table 7 – Breakdown voltage
Minimum breakdown voltage (r.m.s. value)
V
Nominal
conductor
Grade 1 and grade 1B Grade 2 and grade 2B Grade 3
diameter
Room Elevated Room Elevated Room Elevated
mm
temperature temperature temperature temperature temperature temperature
Over 2 500 1 300 1 000 2 500 1 900 3 800 2 900

60317-0-3 © IEC:2008 – 15 –
14 Continuity of insulation (nominal conductor diameters up to and including
1,600 mm)
The number of faults per 30 m of wire shall not exceed the values given in Table 8.
Table 8 – Continuity of insulation
Nominal conductor diameter Maximum number of fault
mm per 30 m
Up to and Grade 1 Grade 2
Over Grade 3
including and grade 1B and grade 2B

– 1,600 25 10 5
15 Temperature index
The test shall be carried out in accordance with IEC 60172 unimpregnated specimens made
from a wire having a nominal conductor diameter of 1,000 mm, grade 2.
The temperature index shall not be less than that given in the relevant specification sheet and
the time to failure at the lowest test temperature shall not be less than 5 000 h.
When required by a purchaser, the supplier of the enamelled wire shall supply evidence that
the wire meets the requirements for the temperature index.
NOTE The temperature index based on an extrapolated life of 20 000 h relates to enamelled wires tested
unvarnished and not as part of an insulation system. 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.
16 Resistance to refrigerants
For requirements, see the relevant specification sheet.
17 Solderability
Test inappropriate.
18 Heat or solvent bonding
For requirements, see the relevant specification sheet.
19 Dielectric dissipation factor
For requirements, see the relevant specification sheet.
20 Resistance to transformer oil
For requirements, see the relevant specification sheet.

– 16 – 60317-0-3 © IEC:2008
21 Loss of mass
For requirements, see the relevant specification sheet.
23 Pin hole test
Requirements under consideration.
30 Packaging
The kind of packaging may influence certain properties of the wire, for example springback.
Therefore the kind of packaging, for example the type of spool, shall be agreed between
purchaser and supplier.
The wire shall be evenly and compactly wound on spools or placed in containers. No spool or
container shall contain more than one length of wire unless agreed to by purchaser and
supplier. Marking of the label when there is more than one length and/or identification of the
separate lengths in the package shall be agreed to by purchaser and supplier.
Where wires are delivered in coils, the dimensions and the maximum weights of such coils
shall be agreed between purchaser and supplier. Any additional protection for coils shall also
be agreed between purchaser and supplier.
Labels shall be attached to each packaging unit as agreed between supplier and user and shall
include the following information:
a) manufacturer's name and/or trade mark;
b) type of wire and insulation, for instance trade name and/or IEC specification number;
c) net mass of wire;
d) nominal dimension(s) of wire and grade of insulation;
e) date of manufacture.
60317-0-3 © IEC:2008 – 17 –
Annex A
(informative)
Dimensions for intermediate nominal conductor diameters (R 40)

This annex covers those intermediate nominal conductor diameters from which the user may
select intermediate sizes only for technical reasons.
A.1 Enamelled wires without a bonding layer
Table A.1 – Dimensions of enamelled wires (R 40)
Nominal Conductor Minimum increase Maximum overall diameter
conductor tolerance due to the insulation
diameter mm mm
±
mm mm Grade 1 Grade 2 Grade 3 Grade 1 Grade 2 Grade 3

0,265 0,004 0,018 0,033 0,050 0,297 0,314 0,330
0,300 0,004 0,019 0,035 0,053 0,334 0,352 0,369
0,335 0,004 0,020 0,038 0,057 0,372 0,391 0,408
0,375 0,005 0,021 0,040 0,060 0,414 0,434 0,453
0,425 0.005 0,022 0,042 0,064 0,466 0,488 0,508

0,475 0,005 0,024 0,045 0,067 0,519 0,541 0,562
0,530 0,006 0,025 0,047 0,071 0,576 0,600 0,623
0,600 0,006 0,027 0,050 0,075 0,649 0,674 0,698
0,670 0,007 0,028 0,053 0,080 0,722 0,749 0,774
0,750 0,008 0,030 0,056 0,085 0,805 0,834 0,861

0,850 0,009 0,032 0,060 0,090 0,909 0,939 0,968
0,950 0,010 0,034 0,063 0,095 1,012 1,044 1,074
1,060 0,011 0,034 0,065 0,098 1,124 1,157 0,188
1,180 0,012 0,035 0,067 0,100 1,246 1,279 1,311
1,320 0,013 0,036 0,069 0,103 1,388 1,422 1,455

1,500 0,015 0,038 0,071 0,107 1,570 1,606 1,640
1,700 0,017 0,039 0,073 0,110 1,772 1,809 1,844
1,900 0,019 0,040 0,075 0,113 1,974 2,012 2,048
2,120 0,021 0,041 0,077 0,116 2,196 2,235 2,272
0,119 2,438 2,478 2,516
2,360 0,024 0,042 0,079
2,650 0,027 0,043 0,081 0,123 2,730 2,772 2,811
3,000 0,030 0,045 0,084 0,127 3,083 3,126 3,166
3,350 0,034 0,046 0,086 0,130 3,435 3,479 3,521
3,750 0,038 0,047 0,089 0,134 3,838 3,883 3,926
4,250 0,043 0,049 0,992 0,138 4,341 4,387 4,431

4,750 0,048 0,050 0,094 0,142 4,843 4,891 4,936

NOTE National committees may use minimum overall diameter requirements provided they are based on the
minimum increases.
– 18 – 60317-0-3 © IEC:2008
A.2 Enamelled wires with a bonding layer
Table A.2 – Dimensions of enamelled wires with a bonding layer (R 40)
Nominal Conductor Maximum increase Minimum Maximum overall
conductor tolerance underlying coating increase diameter
diameter mm bonding layer mm
±
mm mm Grade 1B Grade 2B mm Grade 1B Grade 2B

0,265 0,004 0,018 0,033 0,013 0,316 0,333
0,300 0,004 0,019 0,035 0,014 0,354 0,372
0,335 0,004 0,020 0,038 0,015 0,393 0,412
0,375 0,005 0,021 0,040 0,016 0,436 0,456
0,425 0,005 0,022 0,042 0,016 0,489 0,511

0,475 0,005 0,024 0,045 0,017 0,543 0,565
0,530 0,006 0,025 0,047 0,017 0,600 0,624
0,600 0,006 0,027 0,050 0,018 0,674 0,699
0,670 0,007 0,028 0,053 0,019 0,748 0,775
0,750 0,008 0,030 0,056 0,020 0,832 0,861

0,850 0,009 0,032 0,060 0,020 0,937 0,967
0,950 0,010 0,034 0,063 0,021 1,041 1,073
1,060 0,011 0,034 0,065 0,022 1,154 1,187
1,180 0,012 0,035 0,067 0,022 1,276 1,309
1,320 0,013 0,036 0,069 0,023 1,419 1,453

1,602 1,638
1,500 0,015 0,038 0,071 0,023
1,700 0,017 0,039 0,073 0,024 1,805 1,842
1,900 0,019 0,040 0,075 0,025 2,008 2,046

NOTE National committees may use minimum overall diameter requirements provided they are based on the
minimum increases.
60317-0-3 © IEC:2008 – 19 –
Annex B
(informative)
Method for the calculation of linear resistance

The limits of electrical resistance are calculated on the following basis:
B.1 For nominal conductor diameters up to and including 1,000 mm
The minimum and the maximum values of resistance are calculated from the minimum and
maximum values of the resistivity by taking into account for each conductor diameter the
relevant dimensional tolerance.
The linear resistance is calculated from
–1 –1
R = ρ × q (Ω⋅m )
min min nom
–1 –1
R = ρ × q (Ω⋅m )
max max nom
where
2 –1
ρ = 1/36,2 Ω⋅mm ⋅m ;
min
2 –1
ρ = 1/35,5 Ω⋅mm ⋅m ;
max
q is the cross-section of the conductor in square millimetres.

– 20 – 60317-0-3 © IEC:2008
Annex C
(informative)
Resistance
The figures for nominal resistance are given for information only. They are calculated on the
2 –1
basis of the nominal conductor diameter and a nominal resistivity of 1/35,85 Ω⋅mm ⋅m .
The minimum and maximum resistance figures for nominal conductor diameter up to and
including 1,000 mm are derived from calculations made according to Annex B.
Table C.1 – Electrical resistances
Nominal Resistance Nominal Nominal
conductor conductor resistance
diameter diameter
Ω/m
mm Minimum Nominal Maximum mm Ω/mm

0,250 0,5452 0,5683 0,5927 1,120 0,02831
0,280 0,4361 0,4530 0,4708 1,250 0,02273
0,315 0,3456 0,3579 0,3708 1,400 0,01812
0,355 0,2729 0,2818 0,2911 1,600 0,01387
0,400 0,2144 0,2220 0,2299 1,800 0,01096

0,450 0,1699 0,1754 0,1811 2,000 0,008879
0,500 0,1379 0,1421 0,1464 2,240 0,007078
0,560 0,1098 0,1133 0,1169 2,500 0,005683
0,004530
0,630 0,08695 0,08948 0,09211 2,800
0,710 0,06842 0,07045 0,07257 3,150 0,003579

0,800 0,05387 0,05549 0,05718 3,550 0,002818
0,900 0,04257 0,04385 0,04518 4,000 0,002220
1,000 0,03448 0,03552 0,03659 4,500 0,001754
5,000 0,001421
60317-0-3 © IEC:2008 – 21 –
Bibliography
IEC 60317-25, Specifications for particular types of winding wires – Part 25: Polyester or
polyesterimide overcoated with polyamide-imide enamelled round aluminium wire, class 200

___________
– 22 – 60317-0-3 © CEI:2008
SOMMAIRE
AVANT-PROPOS .24
INTRODUCTION.26

1 Domaine d’application.27
2 Références normatives .27
3 Termes, définitions et notes générales concernant les méthodes d'essai et l'aspect .27
3.1 Définitions .27
3.2 Notes générales concernant les méthodes d'essai .28
3.3 Aspect.29
4 Dimensions.29
4.1 Diamètre du conducteur.29
4.2 Ovalisation du conducteur.31
4.3 Accroissement minimal de diamètre dû à l'isolant et à la couche adhérente.31
4.3.1 Fils émaillés sans couche adhérente.31
4.3.2 Fils émaillés avec une couche adhérente .31
4.4 Diamètre extérieur maximal .32
4.4.1 Fils émaillés sans couche adhérente.32
4.4.2 Fils émaillés avec une couche adhérente .32
5 Résistance électrique.32
6 Allongement .32
7 Effet ressort.32
8 Souplesse et adhérence.32
8.1 Essai d'enroulement sur mandrin (diamètres nominaux des conducteurs
jusques et y compris 1,600 mm) .32
8.2 Essai d'allongement (diamètres nominaux des conducteurs supérieurs à
1,000 mm) .33
8.3 Essai de traction brusque (diamètres nominaux des conducteurs jusques et y
compris 1,000 mm).33
8.4 Essai d'adhérence (diamètres nominaux des conducteurs supérieurs à
1,000 mm) .33
9 Choc thermique .33
9.1 Diamètres nominaux des conducteurs jusques et y c
...

IEC 60317-0-3 ®
Edition 3.1 2013-09
CONSOLIDATED
VERSION
VERSION
CONSOLIDÉE
colour
inside
Specifications for particular types of winding wires –
Part 0-3: General requirements – Enamelled round aluminium wire

Spécifications pour types particuliers de fils de bobinage –
Partie 0-3: Exigences générales – Fil de section circulaire en aluminium émaillé

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IEC 60317-0-3 ®
Edition 3.1 2013-09
CONSOLIDATED
VERSION
VERSION
CONSOLIDÉE
colour
inside
Specifications for particular types of winding wires –

Part 0-3: General requirements – Enamelled round aluminium wire

Spécifications pour types particuliers de fils de bobinage –

Partie 0-3: Exigences générales – Fil de section circulaire en aluminium émaillé

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.060.10 ISBN 978-2-8322-1135-9

IEC 60317-0-3 ®
Edition 3.1 2013-09
REDLINE VERSION
VERSION REDLINE
colour
inside
Specifications for particular types of winding wires –
Part 0-3: General requirements – Enamelled round aluminium wire

Spécifications pour types particuliers de fils de bobinage –
Partie 0-3: Exigences générales – Fil de section circulaire en aluminium émaillé

– 2 – 60317-0-3  IEC:2008+A1:2013
CONTENTS
FOREWORD . 4
INTRODUCTION . 6

1 Scope . 7
2 Normative references. 7
3 Terms, definitions and, general notes on methods of tests and appearance . 7
3.1 Definitions . 7
3.2 General notes on methods of test . 8
3.2.1 Methods of test . 8
3.2.2 Winding wire . 9
3.3 Appearance . 9
4 Dimensions . 9
4.1 Conductor diameter . 9
4.2 Out of roundness of conductor . 11
4.3 Minimum increase in diameter due to the insulation and the bonding layer . 11
4.3.1 Enamelled wires without a bonding layer . 11
4.3.2 Enamelled wires with a bonding layer . 11
4.4 Maximum overall diameter . 11
4.4.1 Enamelled wires without a bonding layer . 11
4.4.2 Enamelled wires with a bonding layer . 11
5 Electrical resistance . 12
6 Elongation . 12
7 Springiness. 12
8 Flexibility and adherence . 12
8.1 Mandrel winding test (nominal conductor diameters up to and including 1,600
mm) . 12
8.2 Stretching test (nominal conductor diameters over 1,000 mm) . 12
8.3 Jerk test (nominal conductor diameters up to and including 1,000 mm) . 13
8.4 Peel test (nominal conductor diameters over 1,000 mm) . 13
9 Heat shock . 13
9.1 Nominal conductor diameters up to and including 1,600 mm . 13
9.2 Nominal conductor diameters over 1,600 mm . 13
10 Cut-through . 13
11 Resistance to abrasion . 13
12 Resistance to solvents . 13
13 Breakdown voltage . 13
13.1 General . 13
13.2 Nominal conductor diameters up to and including 2,500 mm . 14
13.3 Nominal conductor diameters over 2,500 mm . 14
14 Continuity of insulation (nominal conductor diameters up to and including
1,600 mm) . 15
15 Temperature index . 15
16 Resistance to refrigerants . 15
17 Solderability . 15

60317-0-3  IEC:2008+A1:2013 – 3 –
18 Heat or solvent bonding . 15
19 Dielectric dissipation factor . 15
20 Resistance to transformer oil . 15
21 Loss of mass . 16
23 Pin hole test . 16
30 Packaging . 16

Annex A (informative) Dimensions for intermediate nominal conductor diameters (R 40) . 17
Annex B (informative) Method for the calculation of linear resistance . 19
Annex C (informative) Resistance . 20
Bibliography . 21

Table 1 – Dimensions of enamelled wires (R 20) . 9
Table 2 – Dimensions of enamelled wires with a bonding layer (R 20) . 11
Table 3 – Elongation . 12
Table 4 – Mandrel winding . 12
Table 5 – Heat shock . 13
Table 6 – Breakdown voltage . 14
Table 7 – Breakdown voltage . 14
Table 8 – Continuity of insulation . 15
Table A.1 – Dimensions of enamelled wires (R 40) . 17
Table A.2 – Dimensions of enamelled wires with a bonding layer (R 40) . 18
Table C.1 – Electrical resistances . 20

– 4 – 60317-0-3  IEC:2008+A1:2013
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SPECIFICATIONS FOR PARTICULAR TYPES OF WINDING WIRES –

Part 0-3: General requirements –
Enamelled round aluminium wire

FOREWORD
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This Consolidated version of IEC 60317-0-3 bears the edition number 3.1. It consists of
the third edition (2008) [documents 55/1056/FDIS et 55/1068/RVD] and its amendment 1
(2012) [documents 55/1405/FDIS and 55/1426/RVD]. The technical content is identical to
the base edition and its amendment.
In this Redline version, a vertical line in the margin shows where the technical content
is modified by amendment 1. Additions and deletions are displayed in red, with
deletions being struck through. A separate Final version with all changes accepted is
available in this publication.
This publication has been prepared for user convenience.

60317-0-3  IEC:2008+A1:2013 – 5 –
International Standard IEC 60317-0-3 has been prepared by IEC technical committee 55:
Winding wires.
Technical changes from the previous edition include clarification to appearance requirements,
revisions to the wire size ranges applicable to the flexibility and adherence tests, and
clarification that pin hole test requirements are under consideration.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all the parts in the IEC 60317 series, under the general title Specifications for particular
types of winding wires, can be found on the IEC website.
This standard is to be read in conjunction with the IEC 60851 series. The clause numbers used
in this part of IEC 60317 are identical with the respective test numbers of IEC 60851.
In case of inconsistencies between IEC 60851 and this part of IEC 60317, the latter shall
prevail.
The committee has decided that the contents of the base publication and its amendment will
remain unchanged until the stability date indicated on the IEC web site under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
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 publication using a colour printer.

– 6 – 60317-0-3  IEC:2008+A1:2013
INTRODUCTION
This part of IEC 60317 is one of a series that deals with insulated wires used for windings in
electrical equipment. The series has three groups describing
1) winding wires and test methods (IEC 60851);
2) specifications for particular types of winding wires (IEC 60317);
3) packaging of winding wires (IEC 60264).

60317-0-3  IEC:2008+A1:2013 – 7 –
SPECIFICATIONS FOR PARTICULAR TYPES OF WINDING WIRES –

Part 0-3: General requirements –
Enamelled round aluminium wire

1 Scope
This part of IEC 60317 specifies the general requirements of enamelled round aluminium
winding wires with or without a bonding layer.
The range of nominal conductor diameters is given in the relevant specification sheet.
When reference is made to a winding wire according to a standard of the IEC 60317 series
mentioned under Clause 2, the following information is given in the description:
– reference to IEC specification;
– nominal conductor diameter, in millimetres;
– grade.
EXAMPLE: IEC 60317-14 – 0,500 Grade 1
2 Normative references
The following referenced documents are indispensable for the application 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 60172, Test procedure for the determination of the temperature index of enamelled winding
wires
IEC 60317 (all parts), Specifications for particular types of winding wires
IEC 60851 (all parts), Winding wires – Test methods
ISO 3, Preferred numbers – Series of preferred numbers
3 Terms, definitions and, general notes on methods of tests and appearance
For the purposes of this document, the following terms, definitions and general notes apply.
3.1 Definitions
3.1.1
bonding layer
material which is deposited on an enamelled wire and which has the specific function of
bonding wires together
3.1.2
class
the thermal performance of a wire expressed by the temperature index and the heat shock
temperature
– 8 – 60317-0-3  IEC:2008+A1:2013
3.1.3
coating
material which is deposited on a conductor or wire by a suitable means and then dried and/or
cured
3.1.4
conductor
the bare metal after removal of the insulation
3.1.5
crack
opening in the insulation which exposes the conductor to view at the stated magnification
3.1.6
dual coating
insulation composed of two different materials, an underlying and a superimposed coating
3.1.7
enamelled wire
wire coated with an insulation of cured resin
3.1.8
grade
the range of thickness of the insulation of a wire
3.1.9
insulation
coating or covering on the conductor with the specific function of withstanding voltage
3.1.10
nominal conductor dimension
designation of the conductor size in accordance with the IEC 60317 series
3.1.11
normal vision
20/20 vision, with corrective lenses, if necessary
3.1.12
winding wire
wire used for winding a coil to provide a magnetic field
3.1.13
wire
conductor coated or covered with an insulation
3.2 General notes on methods of test
3.2.1 Methods of test
All methods of test to be used for this part of IEC 60317 are given in IEC 60851.
The clause numbers used in this standard are identical with the respective test numbers of
IEC 60851.
In case of inconsistencies between the publication on methods of test and this standard,
IEC 60317-0-3 shall prevail.
60317-0-3  IEC:2008+A1:2013 – 9 –
Where no specific range of nominal conductor diameters is given for a test, the test applies to
all nominal conductor diameters covered by the specification sheet.
Unless otherwise specified, all tests shall be carried out at a temperature from 15 °C to 35 °C
and a relative humidity from 45 % to 75 %. Before measurements are made, the specimens
shall be preconditioned under these atmospheric conditions for a time sufficient to allow the
specimens to reach stability.
The wire to be tested shall be removed from the packaging in such a way that the wire will not
be subjected to tension or unnecessary bends. Before each test, sufficient wire should be
discarded to ensure that any damaged wire is not included in the test specimens.
3.2.2 Winding wire
See the relevant specification sheet.
In addition, when reference is made to a winding wire according to a standard of the IEC 60317
series mentioned under Clause 2, the following information is given in the description:
− reference to IEC specification;
− nominal conductor diameter in millimetres;
− grade.
EXAMPLE IEC 60317-1 – 0,500 Grade 2
3.3 Appearance
The film coating shall be essentially smooth and continuous, free from streaks, blisters and
foreign material when examined with normal vision, as wound on the original spool or reel.
When agreed upon between the user and supplier, examination using 6× to 10× magnification
shall be used for wires with a nominal diameter less than 0,10 mm.
4 Dimensions
4.1 Conductor diameter
The series of preferred nominal conductor diameters shall correspond to series R 20 according
to ISO 3. The actual values and their tolerances are given in Tables 1 and 2.
The series of intermediate diameters from which the user may select intermediate nominal
conductor diameters, when required for technical reasons, shall correspond to series R 40
according to ISO 3. The actual values and their tolerances are given in Annex A.
The conductor diameter shall not differ from the nominal diameter by more than the limit given
in Tables 1 or 2.
For intermediate nominal conductor diameters, the minimum increase figure corresponding to
the next larger nominal conductor diameter applies.

– 10 – 60317-0-3  IEC:2008+A1:2013
Table 1 – Dimensions of enamelled wires (R 20)
Nominal Conductor Minimum increase Maximum overall
conductor tolerance due to the insulation diameter
diameter ± mm mm
mm mm
Grade 1 Grade 2 Grade 3 Grade 1 Grade 2 Grade 3

0,250 0,004 0,017 0,032 0,048 0,281 0,297 0,312
0,280 0,004 0,018 0,033 0,050 0,312 0,329 0,345
0,315 0,004 0,019 0,035 0,053 0,349 0,367 0,384
0,355 0,004 0,020 0,038 0,057 0,392 0,411 0,428
0,400 0,005 0,021 0,040 0,060 0,439 0,459 0,478

0,450 0,005 0,022 0,042 0,064 0,491 0,513 0,533
0,500 0,005 0,024 0,045 0,067 0,544 0,566 0,587
0,560 0,006 0,025 0,047 0,071 0,606 0,630 0,653
0,630 0,006 0,027 0,050 0,075 0,679 0,704 0,728
0,710 0,007 0,028 0,053 0,080 0,762 0,789 0,814

0,800 0,008 0,030 0,056 0,085 0,855 0,884 0,911
0,900 0,009 0,032 0,060 0,090 0,959 0,989 1,018
1,000 0,010 0,034 0,063 0,095 1,062 1,094 1,124
1,120 0,011 0,034 0,065 0,098 1,184 1,217 1,248
1,250 0,013 0,035 0,067 0,100 1,316 1,349 1,381

1,400 0,014 0,036 0,069 0,103 1,468 1,502 1,535
1,600 0,016 0,038 0,071 0,107 1,670 1,706 1,740
1,800 0,018 0,039 0,073 0,110 1,872 1,909 1,944
2,000 0,020 0,040 0,075 0,113 2,074 2,112 2,148
2,240 0,022 0,041 0,077 0,116 2,316 2,355 2,392

2,500 0,025 0,042 0,079 0,119 2,578 2,618 2,656
2,800 0,028 0,043 0,081 0,123 2,880 2,922 2,961
3,150 0,032 0,045 0,084 0,127 3,233 3,276 3,316
3,550 0,036 0,046 0,086 0,130 3,635 3,679 3,721
4,000 0,040 0,047 0,089 0,134 4,088 4,133 4,176

4,500 0,045 0,049 0,092 0,138 4,591 4,637 4,681
5,000 0,050 0,050 0,094 0,142 5,093 5,141 5,186

NOTE 1 National committees may use minimum overall diameter requirements provided they are based on the
minimum increases.
NOTE 2 For intermediate nominal conductor diameters, the minimum increase figure corresponding to the next
larger nominal conductor diameter should be taken.
NOTE 3 The dimensions of intermediate nominal conductor diameters for R 40 series are given in Annex A.

60317-0-3  IEC:2008+A1:2013 – 11 –
Table 2 – Dimensions of enamelled wires with a bonding layer (R 20)
Nominal Conductor Minimum increase Minimum Maximum overall
conductor tolerance underlying coating increase diameter
diameter ± mm bonding layer mm
mm mm mm
Grade 1B Grade 2B Grade 1B Grade 2B

0,250 0,004 0,017 0,032 0,013 0,300 0,316
0,280 0,004 0,018 0,033 0,013 0,331 0,348
0,315 0,004 0,019 0,035 0,014 0,369 0,387
0,355 0,004 0,020 0,038 0,015 0,413 0,432
0,400 0,005 0,021 0,040 0,016 0,461 0,481

0,450 0,005 0,022 0,042 0,016 0,514 0,536
0,500 0,005 0,024 0,045 0,017 0,568 0,590
0,560 0,006 0,025 0,047 0,017 0,630 0,654
0,630 0,006 0,027 0,050 0,018 0,704 0,729
0,710 0,007 0,028 0,053 0,019 0,788 0,815

0,800 0,008 0,030 0,056 0,020 0,882 0,911
0,900 0,009 0,032 0,060 0,020 0,987 1,017
1,000 0,010 0,034 0,063 0,021 1,091 1,123
1,120 0,011 0,034 0,065 0,022 1,214 1,247
1,250 0,013 0,035 0,067 0,022 1,346 1,379

1,400 0,014 0,036 0,069 0,023 1,499 1,533
1,600 0,016 0,038 0,071 0,023 1,702 1,738
1,800 0,018 0,039 0,073 0,024 1,905 1,942
2,000 0,020 0,040 0,075 0,025 2,108 2,146

NOTE 1 National committees may use minimum overall diameter requirements provided they are based on the
minimum increases.
NOTE 2 For intermediate nominal conductor diameters, the minimum increase figure corresponding to the next
larger nominal conductor diameter should be taken.
NOTE 3 The dimensions of intermediate nominal conductor diameters for R 40 series are given in Annex A.

4.2 Out of roundness of conductor
The difference between the minimum and maximum diameter, at any one point, shall not be
more than the figure given in column 2 of Table 1 or Table 2.
4.3 Minimum increase in diameter due to the insulation and the bonding layer
4.3.1 Enamelled wires without a bonding layer
The minimum increase in diameter due to the insulation shall not be less than the values given
in Table 1.
4.3.2 Enamelled wires with a bonding layer
The minimum increase in diameter due to the insulation including the bonding layer shall not be
less than the values given in Table 2.
4.4 Maximum overall diameter
4.4.1 Enamelled wires without a bonding layer
The maximum overall diameter shall not exceed the values given in Table 1.
4.4.2 Enamelled wires with a bonding layer
The maximum overall diameter shall not exceed the values given in Table 2.

– 12 – 60317-0-3  IEC:2008+A1:2013
5 Electrical resistance
No resistance values are specified.
By agreement between purchaser and supplier, resistance measurements may be made for
nominal conductor diameters up to and including 1,000 mm. In case of such an agreement, the
resistance at 20 °C shall be within the limits given in Annex C.
NOTE The nominal resistance is given in Annex C.
6 Elongation
The elongation at fracture and tensile strength shall not be less than the value given in Table 3.
Table 3 – Elongation
Nominal conductor Elongation Tensile
diameter minimum strength
mm
minimum
Over Up to and
–2
% N⋅mm
including
– 0,400 10 90
0,400 1,000 12 90
1,000 2,000 15 80
2,000 5,000 15 70
7 Springiness
Test appropriate but no requirements specified.
8 Flexibility and adherence
8.1 Mandrel winding test (nominal conductor diameters up to and including 1,600 mm)
The coating shall show no crack after the wire has been wound on a mandrel as specified in
Table 4.
Table 4 – Mandrel winding
Nominal conductor diameter
mm
Mandrel
Up to and diameter
Over
including
– 1,600 3d*
*d is the nominal diameter of the wire.

8.2 Stretching test (nominal conductor diameters over 1,000 mm)
The coating shall show no crack after the wire has been elongated 15 %.

60317-0-3  IEC:2008+A1:2013 – 13 –
8.3 Jerk test (nominal conductor diameters up to and including 1,000 mm)
The coating shall show no crack or loss of adhesion.
8.4 Peel test (nominal conductor diameters over 1,000 mm)
Test appropriate but no requirements specified.
9 Heat shock
9.1 Nominal conductor diameters up to and including 1,600 mm
The coating shall show no crack. The mandrel diameter shall be as specified in Table 5. The
minimum heat shock temperature is given in the relevant specification sheet.
Table 5 – Heat shock
Nominal conductor diameter
mm
Mandrel
diameter
Up to and
Over
including
– 1,600 3d*
*d is the nominal diameter of the wire.

9.2 Nominal conductor diameters over 1,600 mm
The coating shall show no crack after having been elongated 15 %. The minimum heat shock
temperature is given in the relevant specification sheet.
10 Cut-through
For requirements see the relevant specification sheet.
11 Resistance to abrasion
For requirements, see the relevant specification sheet.
12 Resistance to solvents
Standard solvent
Using a pencil of hardness "H" the coating shall not be removed.
13 Breakdown voltage
13.1 General
The wire shall meet the requirements given in 13.2 and 13.3, respectively, when tested at room
temperature and at elevated temperature when this is required by the purchaser.
The elevated temperature is given in the relevant specification sheet.

– 14 – 60317-0-3  IEC:2008+A1:2013
13.2 Nominal conductor diameters up to and including 2,500 mm
At least four of the five specimens tested shall not break down at a voltage less than or equal
to that given in Table 6.
For intermediate nominal conductor diameters, the figure of the next larger nominal conductor
diameter applies.
Table 6 – Breakdown voltage
Minimum breakdown voltage (r.m.s. value)
Nominal V
conductor Grade 1 and grade 1B Grade 2 and grade 2B Grade 3
diameter
Room Elevated Room Elevated Room Elevated
mm
temperature temperature temperature temperature temperature temperature

0,250 2 100 1 600 3 900 2 900 5 500 4 100
0,280 2 200 1 700 4 000 3 000 5 800 4 400
0,315 2 200 1 700 4 100 3 100 6 100 4 600
0,355 2 300 1 700 4 300 3 200 6 400 4 800

0,400 2 300 1 700 4 400 3 300 6 600 5 000
0,450 2 300 1 700 4 400 3 300 6 800 5 100
0,500 2 400 1 800 4 600 3 500 7 000 5 300
0,560 2 500 1 900 4 600 3 500 7 100 5 300

0,630 2 600 2 000 4 800 3 600 7 100 5 300
0,710 2 600 2 000 4 800 3 600 7 200 5 400
0,800 2 600 2 000 4 900 3 700 7 400 5 600
0,900 2 700 2 000 5 000 3 800 7 600 5 700

1,000
up to and 2 700 2 000 5 000 3 800 7 600 5 700
including
2,500
NOTE For intermediate nominal conductor diameters, the figure of the next larger nominal conductor diameter
should be taken.
13.3 Nominal conductor diameters over 2,500 mm
At least four of the five specimens tested shall not break down at a voltage less than or equal
to that given in Table 7.
Table 7 – Breakdown voltage
Minimum breakdown voltage (r.m.s. value)
Nominal V
conductor Grade 1 and grade 1B Grade 2 and grade 2B Grade 3
diameter
Room Elevated Room Elevated Room Elevated
mm
temperature temperature temperature temperature temperature temperature
Over 2 500 1 300 1 000 2 500 1 900 3 800 2 900

60317-0-3  IEC:2008+A1:2013 – 15 –
14 Continuity of insulation (nominal conductor diameters up to and including
1,600 mm)
The number of faults per 30 m of wire shall not exceed the values given in Table 8.
Table 8 – Continuity of insulation
Nominal conductor diameter Maximum number of fault
mm per 30 m
Up to and Grade 1 Grade 2
Over Grade 3
including and grade 1B and grade 2B

– 1,600 25 10 5
15 Temperature index
The test shall be carried out in accordance with IEC 60172 unimpregnated specimens made
from a wire having a nominal conductor diameter of 1,000 mm, grade 2.
The temperature index shall not be less than that given in the relevant specification sheet and
the time to failure at the lowest test temperature shall not be less than 5 000 h.
When required by a purchaser, the supplier of the enamelled wire shall supply evidence that
the wire meets the requirements for the temperature index.
NOTE The temperature index based on an extrapolated life of 20 000 h relates to enamelled wires tested
unvarnished and not as part of an insulation system. 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.
16 Resistance to refrigerants
For requirements, see the relevant specification sheet.
17 Solderability
Test inappropriate.
18 Heat or solvent bonding
For requirements, see the relevant specification sheet.
19 Dielectric dissipation factor
For requirements, see the relevant specification sheet.
20 Resistance to transformer oil
For requirements, see the relevant specification sheet.

– 16 – 60317-0-3  IEC:2008+A1:2013
21 Loss of mass
For requirements, see the relevant specification sheet.
23 Pin hole test
Requirements under consideration.
30 Packaging
The kind of packaging may influence certain properties of the wire, for example springback.
Therefore the kind of packaging, for example the type of spool, shall be agreed between
purchaser and supplier.
The wire shall be evenly and compactly wound on spools or placed in containers. No spool or
container shall contain more than one length of wire unless agreed to by purchaser and
supplier. Marking of the label when there is more than one length and/or identification of the
separate lengths in the package shall be agreed to by purchaser and supplier.
Where wires are delivered in coils, the dimensions and the maximum weights of such coils
shall be agreed between purchaser and supplier. Any additional protection for coils shall also
be agreed between purchaser and supplier.
Labels shall be attached to each packaging unit as agreed between supplier and user and shall
include the following information:
a) manufacturer's name and/or trade mark;
b) type of wire and insulation, for instance trade name and/or IEC specification number;
c) net mass of wire;
d) nominal dimension(s) of wire and grade of insulation;
e) date of manufacture.
60317-0-3  IEC:2008+A1:2013 – 17 –
Annex A
(informative)
Dimensions for intermediate nominal conductor diameters (R 40)

This annex covers those intermediate nominal conductor diameters from which the user may
select intermediate sizes only for technical reasons.
Minimum overall diameter requirements may be used in lieu of the maximum overall diameters
in Table A.1 or A.2 provided they are based on the minimum increases.
A.1 Enamelled wires without a bonding layer
Table A.1 – Dimensions of enamelled wires (R 40)
Nominal Conductor Minimum increase Maximum overall diameter

conductor tolerance due to the insulation
diameter mm mm
±
mm mm
Grade 1 Grade 2 Grade 3 Grade 1 Grade 2 Grade 3

0,265 0,004 0,018 0,033 0,050 0,297 0,314 0,330
0,300 0,004 0,019 0,035 0,053 0,334 0,352 0,369
0,335 0,004 0,020 0,038 0,057 0,372 0,391 0,408
0,375 0,005 0,021 0,040 0,060 0,414 0,434 0,453
0,425 0.005 0,022 0,042 0,064 0,466 0,488 0,508

0,475 0,005 0,024 0,045 0,067 0,519 0,541 0,562
0,530 0,006 0,025 0,047 0,071 0,576 0,600 0,623
0,600 0,006 0,027 0,050 0,075 0,649 0,674 0,698
0,670 0,007 0,028 0,053 0,080 0,722 0,749 0,774
0,750 0,008 0,030 0,056 0,085 0,805 0,834 0,861

0,850 0,009 0,032 0,060 0,090 0,909 0,939 0,968
0,950 0,010 0,034 0,063 0,095 1,012 1,044 1,074
1,060 0,011 0,034 0,065 0,098 1,124 1,157 0,188
1,180 0,012 0,035 0,067 0,100 1,246 1,279 1,311
1,320 0,013 0,036 0,069 0,103 1,388 1,422 1,455

1,500 0,015 0,038 0,071 0,107 1,570 1,606 1,640
1,700 0,017 0,039 0,073 0,110 1,772 1,809 1,844
1,900 0,019 0,040 0,075 0,113 1,974 2,012 2,048
2,120 0,021 0,041 0,077 0,116 2,196 2,235 2,272
2,360 0,024 0,042 0,079 0,119 2,438 2,478 2,516

2,650 0,027 0,043 0,081 0,123 2,730 2,772 2,811
3,000 0,030 0,045 0,084 0,127 3,083 3,126 3,166
3,350 0,034 0,046 0,086 0,130 3,435 3,479 3,521
3,750 0,038 0,047 0,089 0,134 3,838 3,883 3,926
4,250 0,043 0,049 0,992 0,138 4,341 4,387 4,431

4,750 0,048 0,050 0,094 0,142 4,843 4,891 4,936

NOTE National committees may use minimum overall diameter requirements provided they are based on the
minimum increases.
– 18 – 60317-0-3  IEC:2008+A1:2013
A.2 Enamelled wires with a bonding layer
Table A.2 – Dimensions of enamelled wires with a bonding layer (R 40)
Nominal Conductor Maximum increase Minimum Maximum overall
conductor tolerance underlying coating increase diameter
diameter mm bonding layer mm
±
mm mm Grade 1B Grade 2B mm Grade 1B Grade 2B

0,265 0,004 0,018 0,033 0,013 0,316 0,333
0,300 0,004 0,019 0,035 0,014 0,354 0,372
0,335 0,004 0,020 0,038 0,015 0,393 0,412
0,375 0,005 0,021 0,040 0,016 0,436 0,456
0,425 0,005 0,022 0,042 0,016 0,489 0,511

0,475 0,005 0,024 0,045 0,017 0,543 0,565
0,530 0,006 0,025 0,047 0,017 0,600 0,624
0,600 0,006 0,027 0,050 0,018 0,674 0,699
0,670 0,007 0,028 0,053 0,019 0,748 0,775
0,750 0,008 0,030 0,056 0,020 0,832 0,861

0,850 0,009 0,032 0,060 0,020 0,937 0,967
0,950 0,010 0,034 0,063 0,021 1,041 1,073
1,060 0,011 0,034 0,065 0,022 1,154 1,187
1,180 0,012 0,035 0,067 0,022 1,276 1,309
1,320 0,013 0,036 0,069 0,023 1,419 1,453

1,500 0,015 0,038 0,071 0,023 1,602 1,638
1,700 0,017 0,039 0,073 0,024 1,805 1,842
1,900 0,019 0,040 0,075 0,025 2,008 2,046

NOTE National committees may use minimum overall diameter requirements provided they are based on the
minimum increases.
60317-0-3  IEC:2008+A1:2013 – 19 –
Annex B
(informative)
Method for the calculation of linear resistance

The limits of electrical resistance are calculated on the following basis:
B.1 For nominal conductor diameters up to and including 1,000 mm
The minimum and the maximum values of resistance are calculated from the minimum and
maximum values nominal value of the resistivity by taking into account for each conductor
diameter the relevant dimensional tolerance.
The linear resistance is calculated from
–1 –1
= ρ × q (Ω⋅m )
R
min min nom
–1 –1
R = ρ × q (Ω⋅m )
max max nom
where
2 –1
ρ = 1/36,2 Ω⋅mm ⋅m ;
min
2 –1
ρ = 1/35,5 Ω⋅mm ⋅m ;
max
q is the cross-section of the conductor in square millimetres.

–1 –1
R = ρ × q (Ω·m )
min min max
–1 –1
R = ρ × q (Ω·m )
max max min
where:
2 –1
ρ = 1/36,2 Ω mm ·m ;
min
2 –1
ρ = 1/35,5 Ω mm ·m ;
max
q is the cross-section of the conductor, in square millimetres.
where
q is the maximum cross-section of the conductor in square millimetres, calculated from
max
the nominal conductor diameter minus the dimensional tolerance;
q is the minimum cross-section of the conductor in square millimetres, calculated from
min
the nominal conductor diameter plus the dimensional tolerance.

– 20 – 60317-0-3  IEC:2008+A1:2013
Annex C
(informative)
Resistance
The figures for nominal resistance in Table C.1 are given for information only. They are
calculated on the basis of the nominal conductor diameter and a nominal resistivity of
2 –1
1/35,85 Ω⋅mm ⋅m .
The minimum and maximum resistance figures for nominal conductor diameter up to and
including 1,000 mm are derived from calculations made according to Annex B.
Table C.1 – Electrical resistances
Nominal Resistance at 20 °C Nominal Nominal
conductor Ω/m conductor resistance
diameter diameter
mm Minimum Nominal Maximum mm Ω/mm

0,250 0,5452 0,5683 0,5927 1,120 0,02831
0,280 0,4361 0,4530 0,4708 1,250 0,02273
0,315 0,3456 0,3579 0,3708 1,400 0,01812
0,355 0,2729 0,2818 0,2911 1,600 0,01387
0,400 0,2144 0,2220 0,2299 1,800 0,01096

0,450 0,1699 0,1754 0,1811 2,000 0,008879
0,500 0,1379 0,1421 0,1464 2,240 0,007078
0,560 0,1098 0,1133 0,1169 2,500 0,005683
0,630 0,08695 0,08948 0,09211 2,800 0,004530
0,710 0,06842 0,07045 0,07257 3,150 0,003579

0,800 0,05387 0,05549 0,05718 3,550 0,002818
0,900 0,04257 0,04385 0,04518 4,000 0,002220
1,000 0,03448 0,03552 0,03659 4,500 0,001754
5,000 0,001421
60317-0-3  IEC:2008+A1:2013 – 21 –
Bibliography
IEC 60317-25, Specifications for particular types of winding wires – Part 25: Polyester or
polyesterimide overcoated with polyamide-imide enamelled round aluminium wire, class 200

___________
– 22 – 60317-0-3  CEI:2008+A1:2013
SOMMAIRE
AVANT-PROPOS . 24
INTRODUCTION .
...

IEC 60317-0-3 ®
Edition 3.2 2019-08
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Specifications for particular types of winding wires –
Part 0-3: General requirements – Enamelled round aluminium wire

Spécifications pour types particuliers de fils de bobinage –
Partie 0-3: Exigences générales – Fil de section circulaire en aluminium émaillé

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IEC 60317-0-3 ®
Edition 3.2 2019-08
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colourcolour
insinsiidede
Specifications for particular types of winding wires –

Part 0-3: General requirements – Enamelled round aluminium wire

Spécifications pour types particuliers de fils de bobinage –

Partie 0-3: Exigences générales – Fil de section circulaire en aluminium émaillé

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.060.10 ISBN 978-2-8322-7317-3

IEC 60317-0-3 ®
Edition 3.2 2019-08
CONSOLIDATED VERSION
REDLINE VERSION
VERSION REDLINE
colour
inside
Specifications for particular types of winding wires –
Part 0-3: General requirements – Enamelled round aluminium wire

Spécifications pour types particuliers de fils de bobinage –
Partie 0-3: Exigences générales – Fil de section circulaire en aluminium émaillé

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+AMD2:2019 CSV  IEC 2019
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references . 7
3 Terms, definitions and, general notes on methods of tests and appearance . 7
3.1 Definitions . 7
3.2 General notes on methods of test . 8
3.2.1 Methods of test . 8
3.2.2 Winding wire . 9
3.3 Appearance . 9
4 Dimensions . 9
4.1 Conductor diameter . 9
4.2 Out of roundness of conductor . 12
4.3 Minimum increase in diameter due to the insulation and the bonding layer . 12
4.3.1 Enamelled wires without a bonding layer . 12
4.3.2 Enamelled wires with a bonding layer . 12
4.4 Maximum overall diameter . 12
4.4.1 Enamelled wires without a bonding layer . 12
4.4.2 Enamelled wires with a bonding layer . 12
5 Electrical resistance . 13
6 Elongation . 13
7 Springiness . 13
8 Flexibility and adherence . 13
8.1 Mandrel winding test (nominal conductor diameters up to and including 1,600
mm) . 13
8.2 Stretching test (nominal conductor diameters over 1,000 mm) . 14
8.3 Jerk test (nominal conductor diameters up to and including 1,000 mm) . 14
8.4 Peel test (nominal conductor diameters over 1,000 mm) . 14
9 Heat shock . 14
9.1 Nominal conductor diameters up to and including 1,600 mm . 14
9.2 Nominal conductor diameters over 1,600 mm . 14
10 Cut-through . 14
11 Resistance to abrasion . 14
12 Resistance to solvents . 14
13 Breakdown voltage . 15
13.1 General . 15
13.2 Nominal conductor diameters up to and including 2,500 mm . 15
13.3 Nominal conductor diameters over 2,500 mm . 15
14 Continuity of insulation (nominal conductor diameters up to and including
1,600 mm) . 16
15 Temperature index . 16
16 Resistance to refrigerants . 16
17 Solderability . 16
18 Heat or solvent bonding . 16

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19 Dielectric dissipation factor . 16
20 Resistance to transformer oil . 16
21 Loss of mass . 17
23 Pin hole test . 17
30 Packaging . 17
Annex A (informative) Dimensions for intermediate nominal conductor diameters
(R 40) . 18
Annex B (informative normative) Method for the calculation of linear resistance . 20
Annex C (informative) Resistance . 21
Bibliography .

Table 1 – Dimensions of enamelled wires (R 20) . 11
Table 2 – Dimensions of enamelled wires with a bonding layer (R 20) . 12
Table 3 – Elongation . 13
Table 4 – Mandrel winding . 13
Table 5 – Heat shock . 14
Table 6 – Breakdown voltage . 15
Table 7 – Breakdown voltage . 15
Table 8 – Continuity of insulation . 16
Table A.1 – Dimensions of enamelled wires (R 40) . 18
Table A.2 – Dimensions of enamelled wires with a bonding layer (R 40) . 19
Table C.1 – Electrical resistances . 21

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INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SPECIFICATIONS FOR PARTICULAR TYPES OF WINDING WIRES –
Part 0-3: General requirements –
Enamelled round aluminium wire
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 provides no marking procedure to indicate its approval and cannot be rendered responsible for any
equipment declared to be in conformity with an IEC Publication.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
This consolidated version of the official IEC Standard and its amendments has been
prepared for user convenience.
IEC 60317-0-3 edition 3.2 contains the third edition (2008-04) [documents 55/1056/FDIS
and 55/1068/RVD], its amendment 1 (2013-09) [documents 55/1405/FDIS and 55/1426/
RVD] and its amendment 2 (2019-08) [documents 55/1783/FDIS and 55/1800/RVD].
In this Redline version, a vertical line in the margin shows where the technical content
is modified by amendments 1 and 2. Additions are in green text, deletions are in
strikethrough red text. A separate Final version with all changes accepted is available
in this publication.
+AMD2:2019 CSV  IEC 2019
International Standard IEC 60317-0-3 has been prepared by IEC technical committee 55:
Winding wires.
Technical changes from the previous edition include clarification to appearance requirements,
revisions to the wire size ranges applicable to the flexibility and adherence tests, and
clarification that pin hole test requirements are under consideration.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all the parts in the IEC 60317 series, under the general title Specifications for
particular types of winding wires, can be found on the IEC website.
This standard is to be read in conjunction with the IEC 60851 series. The clause numbers
used in this part of IEC 60317 are identical with the respective test numbers of IEC 60851.
In case of inconsistencies between IEC 60851 and this part of IEC 60317, the latter shall
prevail.
The committee has decided that the contents of the base publication and its amendments will
remain unchanged until the stability date indicated on the IEC web site under
"http://webstore.iec.ch" in the data related to the specific publication. At this date, the
publication will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
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.
– 6 – IEC 60317-0-3:2008+AMD1:2013
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INTRODUCTION
This part of IEC 60317 is one of a series that deals with insulated wires used for windings in
electrical equipment. The series has three groups describing
1) winding wires and test methods (IEC 60851);
2) specifications for particular types of winding wires (IEC 60317);
3) packaging of winding wires (IEC 60264).

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SPECIFICATIONS FOR PARTICULAR TYPES OF WINDING WIRES –

Part 0-3: General requirements –
Enamelled round aluminium wire

1 Scope
This part of IEC 60317 specifies the general requirements of enamelled round aluminium
winding wires with or without a bonding layer.
The range of nominal conductor diameters is given in the relevant specification sheet.
When reference is made to a winding wire according to a standard of the IEC 60317 series
mentioned under Clause 2, the following information is given in the description:
– reference to IEC specification;
– nominal conductor diameter, in millimetres;
– grade.
EXAMPLE: IEC 60317-14 – 0,500 Grade 1
2 Normative references
The following referenced documents are indispensable for the application 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 60172, Test procedure for the determination of the temperature index of enamelled
winding wires
IEC 60317 (all parts), Specifications for particular types of winding wires
IEC 60851 (all parts), Winding wires – Test methods
ISO 3, Preferred numbers – Series of preferred numbers
ASTM B233-97, Standard Specification for Aluminum 1350 Drawing Stock for Electrical
Purposes
EN 1715-2, Aluminium and aluminium alloys – Drawing stock – Part 2: Specific requirements
for electrical applications
3 Terms, definitions and, general notes on methods of tests and appearance
For the purposes of this document, the following terms, definitions and general notes apply.
3.1 Definitions
3.1.1
bonding layer
material which is deposited on an enamelled wire and which has the specific function of
bonding wires together
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3.1.2
class
the thermal performance of a wire expressed by the temperature index and the heat shock
temperature
3.1.3
coating
material which is deposited on a conductor or wire by a suitable means and then dried and/or
cured
3.1.4
conductor
the bare metal after removal of the insulation
3.1.5
crack
opening in the insulation which exposes the conductor to view at the stated magnification
3.1.6
dual coating
insulation composed of two different materials, an underlying and a superimposed coating
3.1.7
enamelled wire
wire coated with an insulation of cured resin
3.1.8
grade
the range of thickness of the insulation of a wire
3.1.9
insulation
coating or covering on the conductor with the specific function of withstanding voltage
3.1.10
nominal conductor dimension
designation of the conductor size in accordance with the IEC 60317 series
3.1.11
normal vision
20/20 vision, with corrective lenses, if necessary
3.1.12
winding wire
wire used for winding a coil to provide a magnetic field
3.1.13
wire
conductor coated or covered with an insulation
3.2 General notes on methods of test
3.2.1 Methods of test
All methods of test to be used for this part of IEC 60317 are given in IEC 60851.

+AMD2:2019 CSV  IEC 2019
The clause numbers used in this standard are identical with the respective test numbers of
IEC 60851.
In case of inconsistencies between the publication on methods of test and this standard,
IEC 60317-0-3 shall prevail.
Where no specific range of nominal conductor diameters is given for a test, the test applies to
all nominal conductor diameters covered by the specification sheet.
Unless otherwise specified, all tests shall be carried out at a temperature from 15 °C to 35
40 °C and a relative humidity from 45 of 25 % to 75 %. Before measurements are made, the
specimens shall be preconditioned under these atmospheric conditions for a time sufficient to
allow the specimens to reach stability.
The wire to be tested shall be removed from the packaging in such a way that the wire will not
be subjected to tension or unnecessary bends. Before each test, sufficient wire should be
discarded to ensure that any damaged wire is not included in the test specimens.
3.2.2 Winding wire
See the relevant specification sheet.
In addition, when reference is made to a winding wire according to a standard of the
IEC 60317 series mentioned under Clause 2, the following information is given in the
description:
− reference to IEC specification;
− nominal conductor diameter in millimetres;
− grade.
EXAMPLE IEC 60317-1 – 0,500 Grade 2
3.3 Appearance
The film coating shall be essentially smooth and continuous, free from streaks, blisters and
foreign material when examined with normal vision, as wound on the original spool or reel.
When agreed upon between the user and supplier, examination using 6× to 10× magnification
shall be used for wires with a nominal diameter less than 0,10 mm.
4 Dimensions
4.1 Conductor diameter
The series of preferred nominal conductor diameters shall correspond to series R 20 accord-
ing to ISO 3. The actual values and their tolerances are given in Tables 1 and 2.
The series of intermediate diameters from which the user may select intermediate nominal
conductor diameters, when required for technical reasons, shall correspond to series R 40
according to ISO 3. The actual values and their tolerances are given in Annex A.
The conductor diameter shall not differ from the nominal diameter by more than the limit given
in Tables 1 or 2.
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For intermediate nominal conductor diameters, the minimum increase figure corresponding to
the next larger nominal conductor diameter applies.

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Table 1 – Dimensions of enamelled wires (R 20)
Nominal Conductor Minimum increase Maximum overall
conductor tolerance due to the insulation diameter
diameter ± mm mm
mm mm Grade 1 Grade 2 Grade 3 Grade 1 Grade 2 Grade 3

0,250 0,004 0,017 0,032 0,048 0,281 0,297 0,312
0,280 0,004 0,018 0,033 0,050 0,312 0,329 0,345
0,315 0,004 0,019 0,035 0,053 0,349 0,367 0,384
0,355 0,004 0,020 0,038 0,057 0,392 0,411 0,428
0,400 0,005 0,021 0,040 0,060 0,439 0,459 0,478

0,450 0,005 0,022 0,042 0,064 0,491 0,513 0,533
0,500 0,005 0,024 0,045 0,067 0,544 0,566 0,587
0,560 0,006 0,025 0,047 0,071 0,606 0,630 0,653
0,630 0,006 0,027 0,050 0,075 0,679 0,704 0,728
0,710 0,007 0,028 0,053 0,080 0,762 0,789 0,814

0,800 0,008 0,030 0,056 0,085 0,855 0,884 0,911
0,900 0,009 0,032 0,060 0,090 0,959 0,989 1,018
1,000 0,010 0,034 0,063 0,095 1,062 1,094 1,124
1,120 0,011 0,034 0,065 0,098 1,184 1,217 1,248
1,250 0,013 0,035 0,067 0,100 1,316 1,349 1,381

1,400 0,014 0,036 0,069 0,103 1,468 1,502 1,535
1,600 0,016 0,038 0,071 0,107 1,670 1,706 1,740
1,800 0,018 0,039 0,073 0,110 1,872 1,909 1,944
2,000 0,020 0,040 0,075 0,113 2,074 2,112 2,148
2,240 0,022 0,041 0,077 0,116 2,316 2,355 2,392

2,500 0,025 0,042 0,079 0,119 2,578 2,618 2,656
2,800 0,028 0,043 0,081 0,123 2,880 2,922 2,961
3,150 0,032 0,045 0,084 0,127 3,233 3,276 3,316
3,550 0,036 0,046 0,086 0,130 3,635 3,679 3,721
4,000 0,040 0,047 0,089 0,134 4,088 4,133 4,176

4,500 0,045 0,049 0,092 0,138 4,591 4,637 4,681
5,000 0,050 0,050 0,094 0,142 5,093 5,141 5,186

NOTE 1 National committees may use minimum overall diameter requirements provided they are based on the
minimum increases.
NOTE 2 For intermediate nominal conductor diameters, the minimum increase figure corresponding to the next
larger nominal conductor diameter should be taken.
NOTE 3 The dimensions of intermediate nominal conductor diameters for R 40 series are given in Annex A.

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Table 2 – Dimensions of enamelled wires with a bonding layer (R 20)
Nominal Conductor Minimum increase Minimum Maximum overall
conductor tolerance underlying coating increase diameter
diameter ± mm bonding layer mm
mm mm Grade 1B Grade 2B mm Grade 1B Grade 2B

0,250 0,004 0,017 0,032 0,013 0,300 0,316
0,280 0,004 0,018 0,033 0,013 0,331 0,348
0,315 0,004 0,019 0,035 0,014 0,369 0,387
0,355 0,004 0,020 0,038 0,015 0,413 0,432
0,400 0,005 0,021 0,040 0,016 0,461 0,481

0,450 0,005 0,022 0,042 0,016 0,514 0,536
0,500 0,005 0,024 0,045 0,017 0,568 0,590
0,560 0,006 0,025 0,047 0,017 0,630 0,654
0,630 0,006 0,027 0,050 0,018 0,704 0,729
0,710 0,007 0,028 0,053 0,019 0,788 0,815

0,800 0,008 0,030 0,056 0,020 0,882 0,911
0,900 0,009 0,032 0,060 0,020 0,987 1,017
1,000 0,010 0,034 0,063 0,021 1,091 1,123
1,120 0,011 0,034 0,065 0,022 1,214 1,247
1,250 0,013 0,035 0,067 0,022 1,346 1,379

1,400 0,014 0,036 0,069 0,023 1,499 1,533
1,600 0,016 0,038 0,071 0,023 1,702 1,738
1,800 0,018 0,039 0,073 0,024 1,905 1,942
2,000 0,020 0,040 0,075 0,025 2,108 2,146

NOTE 1 National committees may use minimum overall diameter requirements provided they are based on the
minimum increases.
NOTE 2 For intermediate nominal conductor diameters, the minimum increase figure corresponding to the
next larger nominal conductor diameter should be taken.
NOTE 3 The dimensions of intermediate nominal conductor diameters for R 40 series are given in Annex A.

4.2 Out of roundness of conductor
The difference between the minimum and maximum diameter, at any one point, shall not be
more than the figure given in column 2 of Table 1 or Table 2.
4.3 Minimum increase in diameter due to the insulation and the bonding layer
4.3.1 Enamelled wires without a bonding layer
The minimum increase in diameter due to the insulation shall not be less than the values
given in Table 1.
4.3.2 Enamelled wires with a bonding layer
The minimum increase in diameter due to the insulation including the bonding layer shall not
be less than the values given in Table 2.
4.4 Maximum overall diameter
4.4.1 Enamelled wires without a bonding layer
The maximum overall diameter shall not exceed the values given in Table 1.
4.4.2 Enamelled wires with a bonding layer
The maximum overall diameter shall not exceed the values given in Table 2.

+AMD2:2019 CSV  IEC 2019
5 Electrical resistance
The aluminium rod being used shall comply with EN 1715-2 and ASTM B233-97.
No resistance values are specified.
By agreement between purchaser and supplier, resistance measurements may be made for
nominal conductor diameters up to and including 1,000 mm. In case of such an agreement,
the resistance at 20 °C shall be within the limits given in Annex C.
NOTE The nominal resistance is given in Annex C.
6 Elongation
The elongation at fracture and tensile strength shall not be less than the value given in Table
3.
Table 3 – Elongation
Nominal conductor Elongation Tensile
diameter minimum strength
mm minimum
Over Up to and
–2
% N⋅mm
including
– 0,400 10 90
0,400 1,000 12 90
1,000 2,000 15 80
2,000 5,000 15 70
7 Springiness
Test appropriate but no requirements specified.
8 Flexibility and adherence
8.1 Mandrel winding test (nominal conductor diameters up to and including 1,600 mm)
The coating shall show no crack after the wire has been wound on a mandrel as specified in
Table 4.
Table 4 – Mandrel winding
Nominal conductor diameter
mm
Mandrel
Up to and diameter
Over
including
– 1,600 3d*
*d is the nominal diameter of the wire.

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8.2 Stretching test (nominal conductor diameters over 1,000 mm)
The coating shall show no crack after the wire has been elongated 15 %.
8.3 Jerk test (nominal conductor diameters up to and including 1,000 mm)
The coating shall show no crack or loss of adhesion.
8.4 Peel test (nominal conductor diameters over 1,000 mm)
Test appropriate but no requirements specified.
9 Heat shock
9.1 Nominal conductor diameters up to and including 1,600 mm
The coating shall show no crack. The mandrel diameter shall be as specified in Table 5. The
minimum heat shock temperature is given in the relevant specification sheet.
Table 5 – Heat shock
Nominal conductor diameter
mm
Mandrel
diameter
Up to and
Over
including
– 1,600 3d*
*d is the nominal diameter of the wire.

9.2 Nominal conductor diameters over 1,600 mm
The coating shall show no crack after having been elongated 15 %. The minimum heat shock
temperature is given in the relevant specification sheet.
10 Cut-through
For requirements see the relevant specification sheet.
11 Resistance to abrasion
For requirements, see the relevant specification sheet.
12 Resistance to solvents
Standard solvent
Using a pencil of hardness "H" the coating shall not be removed.

+AMD2:2019 CSV  IEC 2019
13 Breakdown voltage
13.1 General
The wire shall meet the requirements given in 13.2 and 13.3, respectively, when tested at
room temperature and at elevated temperature when this is required by the purchaser.
The elevated temperature is given in the relevant specification sheet.
13.2 Nominal conductor diameters up to and including 2,500 mm
At least four of the five specimens tested shall not break down at a voltage less than or equal
to that given in Table 6.
For intermediate nominal conductor diameters, the figure of the next larger nominal conductor
diameter applies.
Table 6 – Breakdown voltage
Minimum breakdown voltage (r.m.s. value)
Nominal V
conductor
Grade 1 and grade 1B Grade 2 and grade 2B Grade 3
diameter
Room Elevated Room Elevated Room Elevated
mm
temperature temperature temperature temperature temperature temperature

0,250 2 100 1 600 3 900 2 900 5 500 4 100
0,280 2 200 1 700 4 000 3 000 5 800 4 400
0,315 2 200 1 700 4 100 3 100 6 100 4 600
0,355 2 300 1 700 4 300 3 200 6 400 4 800

0,400 2 300 1 700 4 400 3 300 6 600 5 000
0,450 2 300 1 700 4 400 3 300 6 800 5 100
0,500 2 400 1 800 4 600 3 500 7 000 5 300
0,560 2 500 1 900 4 600 3 500 7 100 5 300

0,630 2 600 2 000 4 800 3 600 7 100 5 300
0,710 2 600 2 000 4 800 3 600 7 200 5 400
0,800 2 600 2 000 4 900 3 700 7 400 5 600
0,900 2 700 2 000 5 000 3 800 7 600 5 700

1,000
up to and 2 700 2 000 5 000 3 800 7 600 5 700
including
2,500
NOTE For intermediate nominal conductor diameters, the figure of the next larger nominal conductor diameter
should be taken.
13.3 Nominal conductor diameters over 2,500 mm
At least four of the five specimens tested shall not break down at a voltage less than or equal
to that given in Table 7.
Table 7 – Breakdown voltage
Minimum breakdown voltage (r.m.s. value)
Nominal V
conductor
Grade 1 and grade 1B Grade 2 and grade 2B Grade 3
diameter
Room Elevated Room Elevated Room Elevated
mm
temperature temperature temperature temperature temperature temperature
Over 2 500 1 300 1 000 2 500 1 900 3 800 2 900

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14 Continuity of insulation (nominal conductor diameters up to and including
1,600 mm)
The number of faults per 30 m of wire shall not exceed the values given in Table 8.
Table 8 – Continuity of insulation
Nominal conductor diameter Maximum number of fault
mm per 30 m
Up to and Grade 1 Grade 2
Over Grade 3
including and grade 1B and grade 2B

– 1,600 25 10 5
15 Temperature index
The test shall be carried out in accordance with IEC 60172 unimpregnated specimens made
from a wire having a nominal conductor diameter of 1,000 mm, grade 2.
The temperature index shall not be less than that given in the relevant specification sheet and
the time to failure at the lowest test temperature shall not be less than 5 000 h.
When required by a purchaser, the supplier of the enamelled wire shall supply evidence that
the wire meets the requirements for the temperature index.
NOTE The temperature index based on an extrapolated life of 20 000 h relates to enamelled wires tested
unvarnished and not as part of an insulation system. 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.
16 Resistance to refrigerants
For requirements, see the relevant specification sheet.
17 Solderability
Test inappropriate.
18 Heat or solvent bonding
For requirements, see the relevant specification sheet.
19 Dielectric dissipation factor
For requirements, see the relevant specification sheet.
20 Resistance to transformer oil
For requirements, see the relevant specification sheet.

+AMD2:2019 CSV  IEC 2019
21 Loss of mass
For requirements, see the relevant specification sheet.
23 Pin hole test
Requirements under consideration.
30 Packaging
The kind of packaging may influence certain properties of the wire, for example springback.
Therefore the kind of packaging, for example the type of spool, shall be agreed between
purchaser and supplier.
The wire shall be evenly and compactly wound on spools or placed in containers. No spool or
container shall contain more than one length of wire unless agreed to by purchaser and
supplier. Marking of the label when there is more than one length and/or identification of the
separate lengths in the package shall be agreed to by purchaser and supplier.
Where wires are delivered in coils, the dimensions and the maximum weights of such coils
shall be agreed between purchaser and supplier. Any additional protection for coils shall also
be agreed between purchaser and supplier.
Labels shall be attached to each packaging unit as agreed between supplier and user and
shall include the following information:
a) manufacturer's name and/or trade mark;
b) type of wire and insulation, for instance trade name and/or IEC specification number;
c) net mass of wire;
d) nominal dimension(s) of wire and grade of insulation;
e) date of manufacture.
– 18 – IEC 60317-0-3:2008+AMD1:2013
+AMD2:2019 CSV  IEC 2019
Annex A
(informative)
Dimensions for intermediate nominal conductor diameters (R 40)

This annex covers those intermediate nominal conductor diameters from which the user may
select intermediate sizes only for technical reasons.
Minimum overall diameter requirements may be used in lieu of the maximum overall diameters
in Table A.1 or A.2 provided they are based on the minimum increases.
A.1 Enamelled wires without a bonding layer
Table A.1 – Dimensions of enamelled wires (R 40)
Nominal Conductor Minimum increase Maximum overall diameter
conductor tolerance due to the insulation
diameter mm mm
±
mm mm Grade 1 Grade 2 Grade 3 Grade 1 Grade 2 Grade 3

0,265 0,004 0,018 0,033 0,050 0,297 0,314 0,330
0,300 0,004 0,019 0,035 0,053 0,334 0,352 0,369
0,335 0,004 0,020 0,038 0,057 0,372 0,391 0,408
0,375 0,005 0,021 0,040 0,060 0,414 0,434 0,453
0,425 0.005 0,022 0,042 0,064 0,466 0,488 0,508

0,475 0,005 0,024 0,045 0,067 0,519 0,541 0,562
0,530 0,006 0,025 0,047 0,071 0,576 0,600 0,623
0,600 0,006 0,027 0,050 0,075 0,649 0,674 0,698
0,670 0,007 0,028 0,053 0,080 0,722 0,749 0,774
0,750 0,008 0,030 0,056 0,085 0,805 0,834 0,861

0,850 0,009 0,032 0,060 0,090 0,909 0,939 0,968
0,950 0,010 0,034 0,063 0,095 1,012 1,044 1,074
1,060 0,011 0,034 0,065 0,098 1,124 1,157 0,188
1,180 0,012 0,035 0,067 0,100 1,246 1,279 1,311
1,320 0,013 0,036 0,069 0,103 1,388 1,422 1,455

1,500 0,015 0,038 0,071 0,107 1,570 1,606 1,640
1,700 0,017 0,039 0,073 0,110 1,772 1,809 1,844
1,900 0,019 0,040 0,075 0,113 1,974 2,012 2,048
2,120 0,021 0,041 0,077 0,116 2,196 2,235 2,272
2,360 0,024 0,042 0,079 0,119 2,438 2,478 2,516

2,650 0,027 0,043 0,081 0,123 2,730 2,772 2,811
3,000 0,030 0,045 0,084 0,127 3,083 3,126 3,166
3,350 0,034 0,046 0,086 0,130 3,435 3,479 3,521
3,750 0,038 0,047 0,089 0,134 3,838 3,883 3,926
4,250 0,043 0,049 0,992 0,138 4,341 4,387 4,431

4,750 0,048 0,050 0,094 0,142 4,843 4,891 4,936

NOTE National committees may use minimum overall diameter requirements provided they are based on the
minimum increases.
+AMD2:2019 CSV  IEC 2019
A.2 Enamelled wires with a bonding layer
Table A.2 – Dimensions of enamelled wires with a bonding layer (R 40)
Nominal Conductor Maximum increase Minimum Maximum overall
conductor tolerance underlying coating increase diameter
diameter mm bonding layer mm
±
mm mm Grade 1B Grade 2B mm Grade 1B Grade 2B

0,265 0,004 0,018 0,033 0,013 0,316 0,333
0,300 0,004 0,019 0,035 0,014 0,354 0,372
0,335 0,004 0,020 0,038 0,015 0,393 0,412
0,375 0,005 0,021 0,040 0,016 0,436 0,456
0,425 0,005 0,022 0,042 0,016 0,489 0,511

0,475 0,005 0,024 0,045 0,017 0,543 0,565
0,530 0,006 0,025 0,047 0,017 0,600 0,624
0,600 0,006 0,027 0,050 0,018 0,674 0,699
0,670 0,007 0,028 0,053 0,019 0,748 0,775
0,750 0,008 0,030 0,056 0,020 0,832 0,861

0,850 0,009 0,032 0,060 0,020 0,937 0,967
0,950 0,010 0,034 0,063 0,021 1,041 1,073
1,060 0,011 0,034 0,065 0,022 1,154 1,187
1,180 0,012 0,035 0,067 0,022 1,276 1,309
1,320 0,013 0,036 0,069 0,023 1,419 1,453

1,500 0,015 0,038 0,071 0,023 1,602 1,638
1,700 0,017 0,039 0,073 0,024 1,805 1,842
1,900 0,019 0,040 0,075 0,025 2,008 2,046

NOTE National committees may use minimum overall diameter requirements provided they are based on the
minimum increases.
– 20 – IEC 60317-0-3:2008+AMD1:2013
+AMD2:2019 CSV  IEC 2019
Annex B
(informative normative)
Method for the calculation of linear resistance

The limits of electrical resistance are calculated on the following basis:
B.1 For nominal conductor diameters up to and including 1,000 mm
The minimum and the maximum values of resistance are calculated from the minimum and
maximum values nominal value of the resistivity by taking into account for each conductor
diameter the relevant dimensional tolerance.
The linear resistance is calculated from
–1 –1
R = ρ × q (Ω⋅m )
min min nom
–1 –1
R = ρ × q (Ω⋅m )
max max nom
where
2 –1
ρ = 1/36,2 Ω⋅mm ⋅m ;
min
2 –1
ρ = 1/35,5 Ω⋅mm ⋅m ;
max
q is the cross-section of the conductor in square millimetres.
–1 –1
R = ρ × q (Ω·m )
min min max
–1 –1
R = ρ × q (Ω·m )
max max min
where:
2 –1
ρ = 1/36,2 Ω mm ·m ;
min
2 –1
ρ = 1/35,5 Ω mm ·m ;
max
q is the cross-section of the conductor, in square millimetres.
where
q is the maximum cross-section of the conductor in square millimetres, calculated from
max
the nominal conductor diameter minus the dimensional tolerance;
q is the minimum cross-section of the conductor in square millimetres, calculated from
min
the nominal conductor diameter plus the dimensional tolerance.

+AMD2:2019 CSV  IEC 2019
Annex C
(informative)
Resistance
The figures for nominal resistance in Table C.1 are given for information only. They are
...