IEC 60317-60-2:2020

Specifications for particular types of winding wires - Part 60-2: Polyester glass-fibre wound, resin or varnish impregnated, bare or enamelled rectangular copper wire, temperature index 155

IEC 60317-60-2:2020 specifies the requirements of polyester glass-fibre wound, resin or varnish impregnated, bare or grade 1 or grade 2 enamelled rectangular copper winding wires, temperature index 155. The impregnating agent can be, for instance, epoxy, polyester, or polyesterimide resin based. The range of nominal conductor dimensions covered by this document is:
– width: min. 2,0 mm max. 16,0 mm;
– thickness: min. 0,80 mm max. 5,60 mm.
NOTE For this type of wire, the heat shock test is inappropriate and therefore a heat shock temperature cannot be established. Consequently, a class based on the requirements for temperature index and heat shock temperature cannot be specified.

Spécifications pour types particuliers de fils de bobinage - Partie 60-2: Fil de section rectangulaire en cuivre nu ou émaillé, guipé de fibres de verre polyester imprégnées de résine ou de vernis, d'indice de température 155

IEC 60317-60-2:2020 spécifie les exigences relatives aux fils de bobinage de section rectangulaire en cuivre nus ou émaillés de grade 1 ou de grade 2, guipés de fibres de verre polyester imprégnées de résine ou de vernis, d'indice de température 155. L'agent d'imprégnation peut être, par exemple, un matériau à base de résine époxy, polyester ou polyesterimide.
La gamme des dimensions nominales des conducteurs couvertes par le présent document est:
– largeur: min. 2,0 mm max. 16,0 mm;
– épaisseur: min. 0,80 mm max. 5,60 mm.
NOTE Pour ce type de fil, l'essai de choc thermique ne s'applique pas et la température de choc thermique ne peut donc pas être définie. Par conséquent, il n'est pas possible de spécifier une classe fondée sur les exigences d'indice de température et de température de choc thermique.

General Information

• Status: Published
• Publication Date: 21-Jun-2020
• ICS: 29.060.10 - Wires
• Technical Committee: TC 55 - Winding wires
• Drafting Committee: WG 1 - TC 55/WG 1
• Current Stage: PPUB - Publication issued
• Start Date: 22-Jun-2020
• Completion Date: 19-Jun-2020

Relations

• Replaces: IEC 60317-60:2012 - Specifications for particular types of winding wires - Part 60: Polyester glass fibre wound minimum class 155 resin or varnish impregnated or not impregnated, bare or enamelled, rectangular copper wire, temperature index 155
• Effective Date: 05-Sep-2023

Overview

IEC 60317-60-2:2020 is an international standard from the International Electrotechnical Commission (IEC) specifying the requirements for polyester glass-fibre wound, resin or varnish impregnated, bare or enamelled rectangular copper winding wires with a temperature index of 155. The standard covers wires used primarily in the winding of electrical equipment, where enhanced thermal and mechanical stability is needed.

The standard applies to wires with:

• Width: 2.0 mm to 16.0 mm
• Thickness: 0.80 mm to 5.60 mm

The insulating layer is composed of continuous-filament electrical-grade glass yarn combined with a high-grade polyester fibre, all impregnated with an agent such as epoxy, polyester, or polyesterimide resin. The document supersedes earlier editions, aligning with the latest requirements for winding wires.

Key Topics

Material Composition

• Rectangular copper conductor, either bare or enamelled (grade 1 or grade 2)
• Exterior covering of polyester glass-fibre for additional insulation and mechanical strength
• Impregnating agents (e.g., epoxy, polyester, or polyesterimide based resin) to enhance durability and temperature resistance

Temperature Performance

• Designed for applications requiring a temperature index of 155
• The temperature index depends on the combination of conductor, covering, and impregnating agent
• Not suitable for heat shock testing due to the unique structure and composition

Grades and Construction

• Various constructions based on combinations of fibre layers and enamel grades, including:
  • PG1: 1 layer
  • PG2: 2 layers
  • Enamel grades 1 and 2 with varying fibre layer combinations

Dimensional Consistency

• Strict requirements for the width and thickness ratios, as per IEC 60317-0-8

Testing and Quality Criteria

• Adopts general electrical and physical property tests from IEC 60317-0-8
• Requirements related to elongation, springiness, flexibility, breakdown voltage, and packaging are referenced

Limitations

• Certain tests (heat shock, abrasion, solvent resistance, etc.) are deemed unsuitable due to the construction

Applications

Polyester glass-fibre wound, resin or varnish impregnated rectangular copper wires covered by IEC 60317-60-2:2020 are used in:

• Transformers, particularly those requiring high mechanical reinforcement and thermal endurance
• Motors, especially in high-temperature environments or heavy-duty cycles
• Power inductors and reactors
• Specialized electrical equipment where improved insulation reliability and shape stability are critical

Their robust design makes them ideal for environments with significant thermal, electrical, and mechanical stress, improving the longevity and safety of electrical windings.

Related Standards

The IEC 60317-60-2:2020 standard forms part of a broader series for winding wires and should be considered alongside related documents for comprehensive compliance in manufacturing and quality assurance:

• IEC 60317-0-8: General requirements for glass-fibre wound and impregnated wires
• IEC 60851 series: Methods for testing winding wires
• IEC 60264 series: Packaging of winding wires
• IEC 60317 series (all parts): Other specifications for various winding wire constructions

Adhering to these interconnected standards ensures product consistency, safety, and performance in electrical engineering applications.

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Keywords: IEC 60317-60-2, winding wires, polyester glass-fibre, resin impregnated copper wire, rectangular copper wire, temperature index 155, electrical insulation standards, transformer wire, IEC standards, enamelled wire.

Standards Content (Sample)

IEC 60317-60-2 ®
Edition 1.0 2020-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Specifications for particular types of winding wires –
Part 60-2: Polyester glass-fibre wound, resin or varnish impregnated, bare or
enamelled rectangular copper wire, temperature index 155

Spécifications pour types particuliers de fils de bobinage –
Partie 60-2: Fil de section rectangulaire en cuivre nu ou émaillé, guipé de fibres
de verre polyester imprégnées de résine ou de vernis, d'indice de température
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IEC 60317-60-2 ®
Edition 1.0 2020-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Specifications for particular types of winding wires –

Part 60-2: Polyester glass-fibre wound, resin or varnish impregnated, bare or

enamelled rectangular copper wire, temperature index 155

Spécifications pour types particuliers de fils de bobinage –

Partie 60-2: Fil de section rectangulaire en cuivre nu ou émaillé, guipé de fibres

de verre polyester imprégnées de résine ou de vernis, d'indice de température

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.060.10 ISBN 978-2-8322-8419-3

– 2 – IEC 60317-60-2:2020 © IEC 2020
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions, general notes and appearance . 6
3.1 Terms and definitions . 6
3.2 General notes . 6
3.2.1 Methods of test . 6
3.2.2 Winding wire . 7
3.3 Appearance . 7
4 Dimensions. 7
5 Electrical resistance . 7
6 Elongation . 7
7 Springiness . 7
8 Flexibility and adherence . 7
9 Heat shock . 8
10 Cut-through . 8
11 Resistance to abrasion . 8
12 Resistance to solvents . 8
13 Breakdown voltage . 8
14 Continuity of insulation . 8
15 Temperature index . 8
16 Resistance to refrigerants . 8
17 Solderability . 8
18 Heat or solvent bonding . 8
19 Dielectric dissipation factor . 8
20 Resistance to transformer oil . 8
23 Pin hole test . 9
30 Packaging . 9
Bibliography . 10

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

Part 60-2: Polyester glass-fibre wound, resin or varnish impregnated,
bare or enamelled rectangular copper wire, temperature index 155

FOREWORD
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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 60317-60-2 has been prepared by IEC technical committee 55:
Winding wires.
IEC 60317-60-2 and IEC 60317-60-1 cancel and replace IEC 60317-60 published in 2012.
This document constitutes a technical revision.
The text of this International Standard is based on the following documents:
FDIS Report on voting
55/1844/FDIS 55/1860/RVD
Full information on the voting for the approval of this document can be found in the report on
voting indicated in the above table.

– 4 – IEC 60317-60-2:2020 © IEC 2020
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
This International standard is to be used in conjunction with the IEC 60317-0-8:2019.
A list of all parts in the IEC 60317 series, published under the general title Specifications for
particular types of winding wires can be found on the IEC website.
The numbering of clauses in this standard is not continuous from Clauses 20 and 30 in order
to reserve space for possible future wire requirements prior to those for wire packaging.
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under "http://webstore.iec.ch" in the data related to
the specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
INTRODUCTION
This part of IEC 60317 forms an element of a series of standards which deals with insulated
wires used for windings in electrical equipment. It is composed of the following series:
1) Winding wires – test methods (IEC 60851 series);
2) Specifications for particular types of winding wires (IEC 60317 series);
3) Packaging of winding wires (IEC 60264 series).

– 6 – IEC 60317-60-2:2020 © IEC 2020
SPECIFICATIONS FOR PARTICULAR TYPES OF WINDING WIRES –

Part 60-2: Polyester glass-fibre wound, resin or varnish impregnated,
bare or enamelled rectangular copper wire, temperature index 155

1 Scope
This part of IEC 60317 specifies the requirements of polyester glass-fibre wound, resin or
varnish impregnated, bare or grade 1 or grade 2 enamelled rectangular copper winding wires,
temperature index 155. The impregnating agent can be, for instance, epoxy, polyester, or
polyesterimide resin based.
The range of nominal conductor dimensions covered by this document is:
– width: min. 2,0 mm max. 16,0 mm;
– thickness: min. 0,80 mm max. 5,60 mm.
NOTE For this type of wire, the heat shock test is inappropriate and therefore a heat shock temperature cannot be
established. Consequently, a class based on the requirements for temperature index and heat shock temperature
cannot be specified.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their
content constitutes requirements of this document. For dated references, only the edition
cited applies. For undated references, the latest edition of the referenced document (including
any amendments) applies.
IEC 60317-0-8:2019, Specifications for particular types of winding wires – Part 0-8: General
requirements – Polyester glass-fibre wound unvarnished and fused, or resin or varnish
impregnated, bare or enamelled rectangular copper wire
3 Terms, definitions, general notes and appearance
3.1 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 60317-0-8 apply.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.2 General notes
3.2.1 Methods of test
Subclause 3.2.1 of IEC 60317-0-8:2019 applies.
In case of inconsistency between IEC 60317-0-8 and this document, IEC 60317-60-2 shall
prevail.
3.2.2 Winding wire
The fibre covering shall consist of a combination of polyester and glass fibres. The glass
fibres shall be electrical-grade continuous-filament glass yarn. The polyester fibre shall be a
high-grade yarn resulting from the linear polymerization of ethylene glycol and terephthalic
acid. The maximum content by weight of polyester fibre in the yarn shall not exceed 50 %.
The enamelled wire shall have a temperature index of at least 155 and shall be agreed
between purchaser and supplier.
When impregnating agent is used, the temperature index of the wire is dependent upon the
type of impregnating agent used. The imp
...