IEC 60851-1:2021

IEC 60851-1 ®
Edition 3.0 2021-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Winding wires – Test methods –
Part 1: General
Fils de bobinage – Méthodes d'essai –
Partie 1: Généralités
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IEC 60851-1 ®
Edition 3.0 2021-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Winding wires – Test methods –
Part 1: General
Fils de bobinage – Méthodes d'essai –
Partie 1: Généralités
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.060.10 ISBN 978-2-8322-9882-4
– 2 – IEC 60851-1:2021 © IEC 2021
CONTENTS
FOREWORD . 3
INTRODUCTION . 5
1 Scope . 6
2 Normative references . 6
3 Terms, definitions and general notes on methods of test . 6
3.1 Terms and definitions . 6
3.2 General notes on methods of test . 8
Annex A (informative) Contents of IEC 60851-2 to IEC 60851-6 with indication of tests . 10
A.1 General . 10
A.2 IEC 60851-2 . 10
A.3 IEC 60851-3 . 11
A.4 IEC 60851-4 . 12
A.5 IEC 60851-5 . 13
A.6 IEC 60851-6 . 14
Bibliography . 15

INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
WINDING WIRES – TEST METHODS –

Part 1: General
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,
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preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with
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rights. IEC shall not be held responsible for identifying any or all such patent rights.
IEC 60851-1 has been prepared by IEC technical committee 55: Winding wires. It is an
International Standard.
This third edition cancels and replaces the second edition published in 1996, and its
amendment 1:2003 and amendment 2:2009. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) revision to Clause 2 to update the list of normative references;
b) revision to 3.2 atmospheric conditions for testing;
c) addition to 3.2 with remarks concerning frequency and management of tests;
d) revision to Annex A to update the contents list of IEC 60851 series of tests.

– 4 – IEC 60851-1:2021 © IEC 2021
The text of this International Standard is based on the following documents:
FDIS Report on voting
55/1913/FDIS 55/1916/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
Annex A is for information only.
A list of all parts in the IEC 60851 series, published under the general title Winding wires – Test
methods, 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.
INTRODUCTION
This Part of IEC 60851 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 60851-1:2021 © IEC 2021
WINDING WIRES – TEST METHODS –

Part 1: General
1 Scope
This part of IEC 60851 specifies the general notes on methods of test for winding wires. It also
gives the definitions for terms used in IEC 60851 (all parts). A survey of the contents of
IEC 60851-2 to IEC 60851-6 is given in Annex A.
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 (all parts), Specifications for particular types of winding wires
IEC 60851-2:2009 , Winding wires – Test methods – Part 2: Determination of dimensions
IEC 60851-2:2009/AMD1:2015
IEC 60851-2:2009/AMD2:2019
IEC 60851-3:2009 , Winding wires – Test methods – Part 3: Mechanical properties
IEC 60851-3:2009/AMD1:2013
IEC 60851-3:2009/AMD2:2019
IEC 60851-4:2016, Winding wires – Test methods – Part 4: Chemical properties
IEC 60851-5:2008 , Winding wires – Test methods – Part 5: Electrical properties
IEC 60851-5:2008/AMD1:2011
IEC 60851-5:2008/AMD2:2019
IEC 60851-6:2012, Winding wires – Test methods – Part 6: Thermal properties
3 Terms, definitions and general notes on methods of test
3.1 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
...