Specifications for particular types of winding wires - Part 3: Polyester enamelled round copper wire, class 155

IEC 60317-3:2004+A1:2010 Specifies the requirements of enamelled round copper winding wire of class 155 with a sole coating based on polyester resin, which may be modified provided it retains the chemical identity of the original resin and meets all specified wire requirements. Class 155 is a thermal class that requires a minimum temperature index of 155 and a heat shock temperature of at least 175 °C. The temperature in degrees Celsius corresponding to the temperature index is not necessarily that at which it is recommended that the wire be operated and this will depend on many factors, including the type of equipment involved. The range of nominal conductor diameters covered by this standard is as follows:
- grade 1: 0,020 mm up to and including 3,150 mm;
- grade 2: 0,020 mm up to and including 5,000 mm.
The nominal conductor diameters are specified in Clause 4 of IEC 60317-0-1. The main changes with respect to the previous edition are listed below:
- new requirements for appearance, Subclause 3.2, added;
- the constant K, applied in calculating the number of revolutions for the peel test, Clause 8, increased from 130 mm to 150 mm;
- the test temperature for the cut-through test, Clause 10, increased from 240 °C to 270 °C;
- new pin hole test, Clause 23, added.
This publication is to be read in conjunction with  IEC 60317-0-1:2008.
This consolidated version consists of the third edition (2004) and its amendment 1 (2010). Therefore, no need to order amendment in addition to this publication.

Spécifications pour types particuliers de fils de bobinage - Partie 3: Fil de section circulaire en cuivre émaillé avec polyester, classe 155

La CEI 60317-3:2004+A1:2010 Spécifie les exigences concernant les fils de bobinage de section circulaire en cuivre émaillé de classe 155 avec un revêtement unique à base de résine polyester qui peut être modifiée pour autant que cette résine conserve l'identité chimique de la résine initiale et réponde à toutes les exigences du fil. La classe 155 est une classe thermique qui exige un indice de température minimal de 155 et une température de choc thermique d'au moins 175 °C. La température en degrés Celsius correspondant à l'indice de température n'est pas nécessairement celle à laquelle il est recommandé d'utiliser le fil; cela dépendra de beaucoup de facteurs, y compris du type d'équipement considéré. La gamme des diamètres nominaux des conducteurs couverte par la présente norme est la suivante:
- grade 1: 0,020 mm jusque et y compris 3,150 mm;
- grade 2: 0,020 mm jusque et y compris 5,000 mm.
Les diamètres nominaux des conducteurs sont spécifiés dans l'Article 4 de la CEI 60317-0-1. Les modifications principales par rapport à l'édition précédente sont les suivantes:
- ajout de nouvelles exigences pour les aspects, voir paragraphe 3.2;
- la constante K, appliquée en calculant le nombre de tours pour l'essai de décollement (Article 8), augmentée de 130 mm à 150 mm;
- la température d'essai pour l'essai de thermoplasticité (Article 10), augmentée de 240 °C 270 °C;
- nouvel essai de détection des micro-fissures en immersion, Article 23, ajouté.
Cette publication doit être lue conjointement avec la  CEI 60317-0-1:2008.
  Cette version consolidée comprend la troisième édition (2004) et son amendement 1 (2010). Il n'est donc pas nécessaire de commander l'amendement avec cette publication.

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Publication Date
03-Jan-2022
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IEC 60317-3
Edition 3.1 2011-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Specifications for particular types of winding wires –
Part 3: Polyester enamelled round copper wire, class 155
Spécifications pour types particuliers de fils de bobinage –
Partie 3: Fil de section circulaire en cuivre émaillé avec polyester, classe 155
IEC 60317-3:2004+A1:2010
---------------------- Page: 1 ----------------------
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---------------------- Page: 2 ----------------------
IEC 60317-3
Edition 3.1 2011-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Specifications for particular types of winding wires –
Part 3: Polyester enamelled round copper wire, class 155
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
CODE PRIX CC
ICS 29.060.10 ISBN 978-2-88912-000-0
® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 3 ----------------------
– 2 – 60317-3  IEC:2004+A1:2010
CONTENTS

FOREWORD ........................................................................................................................... 3

INTRODUCTION ..................................................................................................................... 5

1 Scope ............................................................................................................................... 6

2 Normative references ....................................................................................................... 6

3 Definitions and general notes on methods of test and appearance .................................... 6

3.1 Definitions and general notes on methods of test .................................................... 6

3.2 Appearance ............................................................................................................. 7

4 Dimensions ...................................................................................................................... 7

5 Electrical resistance ......................................................................................................... 7

6 Elongation ........................................................................................................................ 7

7 Springiness ...................................................................................................................... 7

8 Flexibility and adherence .................................................................................................. 7

9 Heat shock ....................................................................................................................... 7

10 Cut-through ...................................................................................................................... 7

11 Resistance to abrasion (nominal conductor diameters from 0,250 mm up to and

including 2,500 mm) ......................................................................................................... 7

12 Resistance to solvents ...................................................................................................... 8

13 Breakdown voltage ........................................................................................................... 8

14 Continuity of insulation ..................................................................................................... 8

15 Temperature index ........................................................................................................... 8

16 Resistance to refrigerants ................................................................................................. 9

17 Solderability ..................................................................................................................... 9

18 Heat or solvent bonding .................................................................................................... 9

19 Dielectric dissipation factor ............................................................................................... 9

20 Resistance to transformer oil ............................................................................................ 9

23 Pin hole test ..................................................................................................................... 9

30 Packaging ........................................................................................................................ 9

Table 1 – Resistance to abrasion ............................................................................................ 8

---------------------- Page: 4 ----------------------
60317-3  IEC:2004+A1:2010 – 3 –
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
SPECIFICATIONS FOR PARTICULAR TYPES
OF WINDING WIRES –
Part 3: Polyester enamelled round copper wire,
class 155
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

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patent rights. IEC shall not be held responsible for identifying any or all such patent rights.

This consolidated version of IEC 60317-3 consists of the third edition (2004)
[documents 55/911/FDIS and 55/917/RVD] and its amendment 1 (2010) [documents
55/1117/CDV and 55/1152/RVC]. It bears the edition number 3.1.

The technical content is therefore identical to the base edition and its amendment and

has been prepared for user convenience. A vertical line in the margin shows where the

base publication has been modified by amendment 1. Additions and deletions are
displayed in red, with deletions being struck through.
---------------------- Page: 5 ----------------------
– 4 – 60317-3  IEC:2004+A1:2010

International Standard IEC 60317-3 has been prepared by IEC technical committee 55:

Winding wires.
The main changes with respect to the previous edition are listed below:
– new requirements for appearance, Subclause 3.2, added;

– the constant K, applied in calculating the number of revolutions for the peel test, Clause 8,

increased from 130 mm to 150 mm;

– the test temperature for the cut-through test, Clause 10, increased from 240 °C to 270 °C;

– new pin hole test, Clause 23, added.
This International Standard is to be read in conjunction with IEC 60317-0-1.

This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.

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 publication using a colour printer.

---------------------- Page: 6 ----------------------
60317-3  IEC:2004+A1:2010 – 5 –
INTRODUCTION

This part of IEC 60317 is one of a series which deals with insulated wires used for windings

in electrical equipment. The series has three groups describing
1) winding wires – Test methods (IEC 60851);
2) specifications for particular types of winding wires (IEC 60317);
3) packaging of winding wires (IEC 60264).
---------------------- Page: 7 ----------------------
– 6 – 60317-3  IEC:2004+A1:2010
SPECIFICATIONS FOR PARTICULAR TYPES
OF WINDING WIRES –
Part 3: Polyester enamelled round copper wire,
class 155
1 Scope

This part of IEC 60317 specifies the requirements of enamelled round copper winding wire of

class 155 with a sole coating based on polyester resin, which may be modified provided it

retains the chemical identity of the original resin and meets all specified wire requirements.

NOTE A modified resin is a resin that has undergone a chemical change, or contains one or more additives to

enhance certain performance or application characteristics.

Class 155 is a thermal class that requires a minimum temperature index of 155 and a heat

shock temperature of at least 175 °C.

The temperature in degrees Celsius corresponding to the temperature index is not necessarily

that at which it is recommended that the wire be operated and this will depend on many

factors, including the type of equipment involved.
The range of nominal conductor diameters covered by this standard is as follows:
– grade 1: 0,020 mm up to and including 3,150 mm;
– grade 2: 0,020 mm up to and including 5,000 mm.
The nominal conductor diameters are specified in Clause 4 of IEC 60317-0-1.
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 60317-0-1:2008, Specifications for particular types of winding wires – Part 0-1: General

requirements – Enamelled round copper wire
3 Definitions and general notes on methods of test and appearance
3.1 Definitions and general notes on methods of test

For definitions and general notes on methods of test, see Clause 3 Subclauses 3.1 and 3.2 of

IEC 60317-0-1.

In case of inconsistencies between IEC 60317-0-1 and this standard, IEC 60317-3 shall

prevail.
---------------------- Page: 8 ----------------------
60317-3  IEC:2004+A1:2010 – 7 –
3.2 Appearance
See Clause 3 Subclause 3.3 of IEC 60317-0-1.
4 Dimensions
See Clause 4 of IEC 60317-0-1.
5 Electrical resistance
See Clause 5 of IEC 60317-0-1.
6 Elongation
See Clause 6 of IEC 60317-0-1.
7 Springiness
See Clause 7 of IEC 60317-0-1.
8 Flexibility and adherence

See Clause 8 of IEC 60317-0-1, where the constant K used for the calculation of the number

of revolutions for the peel test shall be 150 mm.
9 Heat shock

See Clause 9 of IEC 60317-0-1, where the minimum heat shock temperature shall be 175 °C.

10 Cut-through
No failure shall occur within 2 min at a temperature of 270 °C.
11 Resistance to abrasion
(nominal conductor diameters from 0,250 mm up to and including 2,500 mm)
The wire shall meet the requirements given in Table
...

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