IEC 60317-56:2017

IEC 60317-56 ®
Edition 2.0 2017-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Specifications for particular types of winding wires –
Part 56: Solderable fully insulated (FIW) zero-defect polyurethane enamelled
round copper wire, class 180
Spécifications pour types particuliers de fils de bobinage –
Partie 56: Fil brasable de section circulaire, isolé en continu, en cuivre émaillé
avec polyuréthane sans défaut électrique, classe 180

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IEC 60317-56 ®
Edition 2.0 2017-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Specifications for particular types of winding wires –

Part 56: Solderable fully insulated (FIW) zero-defect polyurethane enamelled

round copper wire, class 180
Spécifications pour types particuliers de fils de bobinage –

Partie 56: Fil brasable de section circulaire, isolé en continu, en cuivre émaillé

avec polyuréthane sans défaut électrique, classe 180

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.060.10 ISBN 978-2-8322-4680-1

– 2 – IEC 60317-56:2017 © IEC 2017
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms and 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 . 6
3.3 Appearance . 7
4 Dimensions. 7
5 Electrical resistance . 7
6 Elongation . 7
7 Springiness . 7
8 Flexibility and adherence . 7
9 Heat shock . 7
10 Cut-through . 7
11 Resistance to abrasion (for nominal diameters of 0,250 mm up to and including
0,900 mm) . 7
12 Resistance to solvents . 8
13 Breakdown voltage . 8
14 Continuity of insulation . 8
15 Temperature index . 8
16 Resistance to refrigerants . 8
17 Solderability . 8
18 Heat or solvent bonding . 9
19 Dielectric dissipation factor . 9
20 Resistance to transformer oil . 9
21 Loss of mass . 9
23 Pin-hole test . 9
30 Packaging . 9
Annex A (informative) Resistance to abrasion . 10
A.1 Grades of FIW 3, 5, 7, 9 . 10
A.2 Grades 3 through 9 . 10
Bibliography . 11

Table 1 – Resistance to abrasion . 8
Table A.1 – Resistance to abrasion of FIW grades 3 through 9 . 10

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

Part 56: Solderable fully insulated (FIW) zero-defect
polyurethane enamelled round copper wire, class 180

FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
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8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
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patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60317-56 has been prepared by IEC technical committee 55:
Winding wires.
This second edition cancels and replaces the first edition published in 2012. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) Clause 1: revision of the scope, reducing the number of grades of FIW from 3 through 9 to
4, 6 and 8 only;
b) Clause 1: revision of the scope, reducing the wire diameter range from (0,040 to
1,600) mm to (0,090 to 0,900) mm;
c) addition of an informative annex for abrasion resistance requirements for grades FIW 3 to
9.
– 4 – IEC 60317-56:2017 © IEC 2017
The text of this standard is based on the following documents:
FDIS Report on voting
55/1616/FDIS 55/1622/RVD
Full information on the voting for the approval of this International Standard can be found in
the report on voting indicated in the above table.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
This International standard is to be read in conjunction with IEC 60317-0-7:– .
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.
A list of all the 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 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.
_____________
Under preparation. Stage at the time of publication: IEC/FDIS 60317-0-7:2017.

INTRODUCTION
The IEC 60317 series is part of a group of International Standards which define insulated
wires used for windings in electrical equipment:
1) IEC 60851 (all parts), Winding wires − Test methods;
2) IEC 60317 (all parts), Specifications for particular types of winding wires;
3) IEC 60264 (all parts), Packaging of winding wires.

– 6 – IEC 60317-56:2017 © IEC 2017
SPECIFICATIONS FOR PARTICULAR TYPES OF WINDING WIRES –

Part 56: Solderable fully insulated (FIW) zero-defect
polyurethane enamelled round copper wire, class 180

1 Scope
This part of IEC 60317 specifies the requirements of solderable fully insulated (FIW) zero-
defect enamelled round copper wire, class 180, with a single coating based on polyurethane
resin, which may be modified providing it retains its chemical identity and satisfies all the
required technical specifications.
The range of nominal conductor diameters of the wires covered by this standard is as follows:
• Grade of FIW 4, 6, 8: 0,090 mm up to and including 0,900 mm.
Nominal conductor diameters are specified in IEC 60317-0-7–.
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 60317-0-7:–, Specifications for particular types of winding wires – Part 0-7: General
requirements – Fully insulated (FIW) zero-defect enamelled round copper wire
3 Terms and definitions, general notes and appearance
3.1 Terms and definitions
Subclause 3.1 of IEC 60317-0-7:– applies.
3.2 General notes
3.2.1 Methods of test
Subclause 3.2 of IEC 60317-0-7:– applies.
In case of inconsistencies between IEC 60317-0-7 and this document, the latter shall prevail.
3.2.2 Winding wire
A modified resin is one that has undergone a chemical change or contains one or more
additives to enhance certain performance or application characteristics.
Class 180 is a thermal class requiring a temperature index of at least 180 °C and a heat
shock temperature of at least 200 °C.
The temperature in °C corresponding to the temperature index is not necessarily the
temperature recommended as the wire’s temperature in use, since this temperature depends
on many factors, including the type of electrical equipment involved.

3.3 Appearance
Subclause 3.3 of IEC 60317-0-7:– applies.
4 Dimensions
Clause 4 of IEC 60317-0-7:– applies.
5 Electrical resistance
Clause 5 of IEC 60317-0-7:– applies.
6 Elongation
Clause 6 of IEC 60317-0-7:– applies.
7 Springiness
Clause 7 of IEC 60317-0-7:– applies.
8 Flexibility and adherence
Clause 8 of IEC 60317-0-7:– applies.
9 Heat shock
Clause 9 of IEC 60317-0-7:– applies. The minimum heat shock temperature shall be 200 °C.
10 Cut-through
No failure shall occur within 2 min at 245 °C.
11 Resistance to abrasion (for nominal diameters of 0,250 mm up to and
including 0,900 mm)
The wire shall satisfy the requirements in Table 1. For intermediate nominal diameters, the
amount of resistance to abrasion for the next larger nominal diameter shall apply.
For grades of FIW 3, 5, 7 and 9 and a nominal diameter of 1,000 mm, see Annex A.

– 8 – IEC 60317-56:2017 © IEC 2017
Table 1 – Resistance to abrasion
Nominal conductor diameter Resistance to abrasion
Grades of FIW 4
...