IEC 60317-27-1:2020

IEC 60317-27-1 ®
Edition 1.1 2024-10
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
colour
inside
Specifications for particular types of winding wires –
Part 27-1: Paper tape covered round copper wire

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IEC 60317-27-1 ®
Edition 1.1 2024-10
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
colour
inside
Specifications for particular types of winding wires –
Part 27-1: Paper tape covered round copper wire
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.060.10 ISBN 978-2-8322-9878-7
REDLINE VERSION – 2 – IEC 60317-27-1:2020+AMD1:2024 CSV
 IEC 2024
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions, general notes and appearance . 6
3.1 Terms and definitions . 6
3.2 General notes . 7
3.2.1 Methods of test . 7
3.2.2 Winding wire . 7
3.3 Appearance . 7
4 Dimensions. 7
4.1 Conductor diameter . 7
4.2 Out of roundness of conductor . 7
4.3 Increase in diameter due to paper tape covering . 7
4.4 Maximum overall diameter . 8
5 Electrical resistance . 8
6 Elongation . 8
7 Springiness . 8
8 Flexibility and adherence . 8
9 Heat shock . 8
10 Cut-through . 8
11 Resistance to abrasion . 8
12 Resistance to solvents . 9
13 Breakdown voltage . 9
14 Continuity of insulation . 9
15 Temperature index . 9
16 Resistance to refrigerants . 9
17 Solderability . 9
18 Heat or solvent bonding . 9
19 Dielectric dissipation factor . 9
20 Resistance to hydrolysis and to transformer oil . 9
21 Loss of mass . 9
23 Pin hole test . 9
30 Packaging . 9
Bibliography . 11

Table 1 – Increase in diameters . 8

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

Part 27-1: Paper tape covered round copper wire

FOREWORD
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This consolidated version of the official IEC Standard and its amendment has been
prepared for user convenience.
IEC 60317-27-1 edition 1.1 contains the first edition (2020-05) [documents 55/1838/FDIS
and 55/1863/RVD] and its amendment 1 (2024-10) [documents 55/2053/FDIS and
55/2056/RVD].
In this Redline version, a vertical line in the margin shows where the technical content is
modified by amendment 1. Additions are in green text, deletions are in strikethrough red
text. A separate Final version with all changes accepted is available in this publication.

REDLINE VERSION – 4 – IEC 60317-27-1:2020+AMD1:2024 CSV
 IEC 2024
International Standard IEC 60317-27-1 has been prepared by IEC technical committee 55:
Winding wires.
This document has been drafted in accordance with the ISO/IEC Directives, Part 2.
This International Standard is to be used in conjunction with IEC 60317-0-1:2013 and
IEC 60317-0-1:2013/AMD1:2019.
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 21 through 30 in
order to reserve space for possible future wire requirements prior to those for wire packaging.
The committee has decided that the contents of this document and its amendment will remain
unchanged until the stability date indicated on the IEC website under webstore.iec.ch in the
data related to the specific document. At this date, the document will be
• reconfirmed,
• withdrawn, or
• revised.
IMPORTANT – The "colour inside" logo on the cover page of this document indicates
that it contains colours which are considered to be useful for the correct understanding
of its contents. Users should therefore print this document using a colour printer.

 IEC 2024
INTRODUCTION
This part of IEC 60317 forms an element of a series of standards which deals with insulated
wires used for windings in electrical equipment. It is composed of the following series:
1) Winding wires – Test methods (IEC 60851 series);
2) Specifications for particular types of winding wires (IEC 60317 series);
3) Packaging of winding wires (IEC 60264 series).

REDLINE VERSION – 6 – IEC 60317-27-1:2020+AMD1:2024 CSV
 IEC 2024
SPECIFICATIONS FOR PARTICULAR TYPES OF WINDING WIRES –

Part 27-1: Paper tape covered round copper wire

1 Scope
This part of IEC 60317 specifies the requirements of paper tape covered round copper winding
wires. This covering consists of two or more layers of paper tape and is primarily intended for
winding coils for oil immersed transformers.
The range of nominal conductor diameters covered by this document is:
– 0,500 mm up to and
...