EN IEC 60851-3:2023

SLOVENSKI STANDARD
01-november-2023
Navijalne žice - Preskusne metode - 3. del: Mehanske lastnosti (IEC 60851-3:2023)
Winding wires - Test methods - Part 3: Mechanical properties (IEC 60851-3:2023)
Wickeldrähte - Prüfverfahren - Teil 3: Mechanische Eigenschaften (IEC 60851-3:2023)
Fils de bobinage - Méthodes d'essai - Partie 3: Propriétés mécaniques (IEC 60851-
3:2023)
Ta slovenski standard je istoveten z: EN IEC 60851-3:2023
ICS:
29.060.10 Žice Wires
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 60851-3

NORME EUROPÉENNE
EUROPÄISCHE NORM September 2023
ICS 29.060.10 Supersedes EN 60851-3:2009;
EN 60851-3:2009/A1:2013; EN 60851-3:2009/A2:2019
English Version
Winding wires - Test methods - Part 3: Mechanical properties
(IEC 60851-3:2023)
Fils de bobinage - Méthodes d'essai - Partie 3: Propriétés Wickeldrähte - Prüfverfahren - Teil 3: Mechanische
mécaniques Eigenschaften
(IEC 60851-3:2023) (IEC 60851-3:2023)
This European Standard was approved by CENELEC on 2023-09-26. CENELEC members are bound to comply with the CEN/CENELEC
Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC
Management Centre or to any CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the
same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,
Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the
Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Türkiye and the United Kingdom.

European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 60851-3:2023 E

European foreword
The text of document 55/1938/CDV, future edition 4 of IEC 60851-3, prepared by IEC/TC 55 "Winding
wires" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2024-06-26
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2026-09-26
document have to be withdrawn
This document supersedes EN 60851-3:2009 and all of its amendments and corrigenda (if any).
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 60851-3:2023 was approved by CENELEC as a European
Standard without any modification.
In the official version, for Bibliography, the following notes have to be added for the standard indicated:
IEC 60264 (series) NOTE Approved as EN 60264 (series)
IEC 60317 (series) NOTE Approved as EN 60317 (series)
IEC 60851-1 NOTE Approved as EN IEC 60851-1
IEC 60851-5:2008 NOTE Approved as EN 60851-5:2008 (not modified)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
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.
NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the
relevant EN/HD applies.
NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available
here: www.cencenelec.eu.
Publication Year Title EN/HD Year
IEC 60851-2 2009 Winding wires - Test methods - Part 2: EN 60851-2 2009
Determination of dimensions
+ A1 2015  + A1 2015
+ A2 2019  + A2 2019
ISO 178 2019 Plastics - Determination of flexural EN ISO 178 2019
properties
IEC 60851-3 ®
Edition 4.0 2023-08
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
Winding wires – Test methods –

Part 3: Mechanical properties
Fils de bobinage – Méthodes d'essai –

Partie 3: Propriétés mécaniques

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.060.10  ISBN 978-2-8322-7372-2

– 2 – IEC 60851-3:2023 © IEC 2023
CONTENTS
FOREWORD . 5
INTRODUCTION . 7
1 Scope . 8
2 Normative references . 8
3 Terms and definitions . 8
4 Test 6: Elongation . 8
4.1 Elongation at fracture . 8
4.2 Tensile strength . 9
5 Test 7: Springiness . 9
5.1 General . 9
5.2 Round wire with a nominal conductor diameter from 0,080 mm up to and
including 1,600 mm . 9
5.2.1 Principle . 9
5.2.2 Equipment . 9
5.2.3 Procedure . 11
5.3 Round wire with a nominal conductor diameter over 1,600 mm and
rectangular wire . 12
5.3.1 Principle . 12
5.3.2 Equipment . 12
5.3.3 Specimen . 13
5.3.4 Procedure . 13
6 Test 8: Flexibility and adherence . 14
6.1 General . 14
6.2 Mandrel winding test . 14
6.2.1 Round wire . 14
6.2.2 Rectangular wire. 15
6.2.3 Covered bunched wire . 16
6.3 Stretching test (applicable to enamelled round wire with a nominal conductor
diameter over 1,600 mm) . 16
6.4 Jerk test (applicable to enamelled round wire with a nominal conductor
diameter up to and including 1,000 mm) . 17
6.5 Peel test (applicable to enamelled round wire with a nominal conductor
diameter over 1,000 mm) . 17
6.6 Adherence test . 19
6.6.1 General . 19
6.6.2 Enamelled rectangular wire . 19
6.6.3 Impregnated fibre covered round and rectangular wire . 19
6.6.4 Fibre covered enamelled round and rectangular wire . 19
6.6.5 Tape-wrapped round and rectangular wire (for adhesive tape only) . 20
7 Test 11: Resistance to abrasion (applicable to enamelled round wire) . 20
7.1 General . 20
7.2 Principle . 20
7.3 Equipment . 20
7.4 Procedure . 21
8 Test 18: Heat bonding (applicable to enamelled round wire with a nominal
conductor diameter over 0,050 mm up to and including 2,000 mm and to
enamelled rectangular wire) . 22

IEC 60851-3:2023 © IEC 2023 – 3 –
8.1 General . 22
8.2 Vertical bond retention of a helical coil . 22
8.2.1 General . 22
8.2.2 Nominal conductor diameter up to and including 0,050 mm . 22
8.2.3 Nominal conductor diameter over 0,050 mm up to and including

2,000 mm . 22
8.3 Bond strength of a twisted coil . 25
8.3.1 General . 25
8.3.2 Principle . 25
8.3.3 Equipment . 25
8.3.4 Specimen . 25
8.3.5 Procedure . 27
8.3.6 Result . 27
8.4 Enamelled rectangular wire heat bonding . 28
Annex A (informative) Bond strength of heat bonding wires . 30
A.1 Calculation of the temperature of the twisted coil specimen . 30
A.1.1 Method . 30
A.1.2 Temperature coefficient . 30
A.1.3 Calculation . 30
A.2 Determination of the heating period . 31
A.2.1 Voltage-time graphs. 31
A.2.2 Voltage at maximum temperature . 31
Annex B (informative) Friction test methods . 36
B.1 General . 36
B.2 Test A: Static coefficient of friction test method .
...