SIST EN 60851-4:2016

Winding wires - Test methods - Part 4: Chemical properties (IEC 60851-4:2016)

This part of IEC 60851 specifies the following chemical properties tests:
• Test 12: Resistance to solvents;
• Test 16: Resistance to refrigerants;
• Test 17: Solderability;
• Test 20: Resistance to transformer oil.
For definitions, general notes on methods of test and the complete series of methods of test
for winding wires see IEC 60851-1.

Wickeldrähte - Prüfverfahren - Teil 4: Chemische Eigenschaften

Fils de bobinage - Méthodes d'essai - Partie 4: Propriétés chimiques

L'IEC 60851-4:2016 spécifie les essais de propriétés chimiques suivants:
- Essai 12: Résistance aux solvants;
- Essai 16: Résistance aux réfrigérants;
- Essai 17: Brasabilité;
- Essai 20: Résistance à l'huile de transformateur. Pour les définitions, les notes générales concernant les méthodes d'essai et les séries complètes des méthodes d'essai des fils de bobinage, voir  l'IEC 60851-1. Cette troisième édition annule et remplace la deuxième édition parue en 1996, l'Amendement 1:1997 et l'Amendement 2:2005. Cette édition constitue une révision technique. La présente édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- révision de l'Essai 16: Résistance aux réfrigérants;
- révision de l'Essai 17: Brasabilité;
- nouvelle Annexe A relative aux réfrigérants de remplacement pour le monochlorodifluorométhane (R 22).
Mots clés: les essais de propriétés chimiques, d'essai des fils de bobinage

Navijalne žice - Preskusne metode - 4. del: Kemične lastnosti (IEC 60851-4:2016)

Ta del standarda IEC 60851 določa naslednje preskuse kemičnih lastnosti:
• Preskus 12: odpornost na topila;
• Preskus 16: odpornost na hladilna sredstva;
• Preskus 17: možnost spajkanja;
• Preskus 20: odpornost na transformatorsko olje.
Za opredelitve, splošne opombe glede preskusnih metod in celoten nabor preskusnih metod za navijalne žice glej standard IEC 60851-1.

General Information

• Status: Published
• Publication Date: 23-Oct-2016
• ICS: 29.060.10 - Wires
• Technical Committee: I09 - Imaginarni 09
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 19-Oct-2016
• Due Date: 24-Dec-2016
• Completion Date: 24-Oct-2016
• Ref Project: EN 60851-4:2016 - Winding wires - Test methods - Part 4: Chemical properties

Relations

• Replaces: SIST EN 60851-4:2001 - Winding wires - Test methods -- Part 4: Chemical properties
• Effective Date: 01-Dec-2016
• Replaces: SIST EN 60851-4:2001/A2:2005 - Winding wires - Test methods -- Part 4: Chemical properties
• Effective Date: 01-Dec-2016
• Replaces: SIST EN 60851-4:2001/A1:2002 - Winding wires - Test methods -- Part 4: Chemical properties
• Effective Date: 01-Dec-2016
• Replaces: SIST EN 60851-4:2001/A1:2002 - Winding wires - Test methods -- Part 4: Chemical properties
• Effective Date: 07-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 60851-4:2016
01-december-2016
1DGRPHãþD
SIST EN 60851-4:2001
SIST EN 60851-4:2001/A1:2002
SIST EN 60851-4:2001/A2:2005
1DYLMDOQHåLFH3UHVNXVQHPHWRGHGHO.HPLþQHODVWQRVWL,(&
Winding wires - Test methods - Part 4: Chemical properties (IEC 60851-4:2016)
Wickeldrähte - Prüfverfahren - Teil 4: Chemische Eigenschaften
Fils de bobinage - Méthodes d'essai - Partie 4: Propriétés chimiques
Ta slovenski standard je istoveten z: EN 60851-4:2016
ICS:
29.060.10 Žice Wires
SIST EN 60851-4:2016 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------

SIST EN 60851-4:2016

---------------------- Page: 2 ----------------------

SIST EN 60851-4:2016


EUROPEAN STANDARD EN 60851-4

NORME EUROPÉENNE

EUROPÄISCHE NORM
October 2016
ICS 29.060.10 Supersedes EN 60851-4:1996
English Version
Winding wires - Test methods - Part 4: Chemical properties
(IEC 60851-4:2016)
Fils de bobinage - Méthodes d'essai - Partie 4: Propriétés Wickeldrähte - Prüfverfahren - Teil 4: Chemische
chimiques Eigenschaften
(IEC 60851-4:2016) (IEC 60851-4:2016)
This European Standard was approved by CENELEC on 2016-08-10. 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and the United Kingdom.


European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2016 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
 Ref. No. EN 60851-4:2016 E

---------------------- Page: 3 ----------------------

SIST EN 60851-4:2016
EN 60851-4:2016
European foreword
The text of document 55/1578/FDIS, future edition 3 of IEC 60851-4, prepared by IEC/TC 55 "Winding
wires" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as
EN 60851-4:2016.

The following dates are fixed:
(dop) 2017-05-10
• latest date by which the document has to be
implemented at national level by
publication of an identical national
standard or by endorsement
• latest date by which the national (dow) 2019-08-10
standards conflicting with the
document have to be withdrawn

This document supersedes EN 60851-4:1996

Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CENELEC [and/or CEN] shall not be held responsible for identifying any or all such
patent rights.

Endorsement notice
The text of the International Standard IEC 60851-4:2016 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 standards indicated:

IEC 60264 Series NOTE Harmonized as EN 60264 Series.
IEC 60317 Series NOTE Harmonized as EN 60317 Series.
IEC 60851 Series NOTE Harmonized as EN 60851 Series.
2

---------------------- Page: 4 ----------------------

SIST EN 60851-4:2016
EN 60851-4:2016
Annex ZA
(normative)

Normative references to international publications
with their corresponding European publications

The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.

NOTE 1 When 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.cenelec.eu

Publication Year Title EN/HD Year

IEC 60296 -  Fluids for electrotechnical applications - EN 60296 -
Unused mineral insulating oils for
transformers and switchgear
IEC 60554-1 1977 Specification for cellulosic papers for - -
electrical purposes -
Part 1: Definitions and general
requirements
IEC 60851-1 -  Winding wires - Test methods - EN 60851-1 -
Part 1: General
IEC 60851-3 2009 Winding wires - Test methods - EN 60851-3 2009
Part 3: Mechanical properties
IEC 60851-5 2008 Winding wires - Test methods - EN 60851-5 2008
Part 5: Electrical properties
ISO 9453 -  Soft solder alloys - Chemical compositions EN ISO 9453 -
and forms

3

---------------------- Page: 5 ----------------------

SIST EN 60851-4:2016

---------------------- Page: 6 ----------------------

SIST EN 60851-4:2016



IEC 60851-4

®


Edition 3.0 2016-07




INTERNATIONAL



STANDARD




NORME



INTERNATIONALE











Winding wires – Test methods –

Part 4: Chemical properties




Fils de bobinage – Méthodes d’essai –

Partie 4: Propriétés chimiques
















INTERNATIONAL

ELECTROTECHNICAL

COMMISSION


COMMISSION

ELECTROTECHNIQUE


INTERNATIONALE




ICS 29.060.10 ISBN 978-2-8322-3512-6



Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale

---------------------- Page: 7 ----------------------

SIST EN 60851-4:2016
– 2 – IEC 60851-4:2016 © IEC 2016
CONTENTS
FOREWORD . 4
INTRODUCTION . 6
1 Scope . 7
2 Normative references. 7
3 Test 12: Resistance to solvents . 7
3.1 General . 7
3.2 Equipment . 8
3.3 Procedure . 8
4 16: Resistance to refrigerants . 9
4.1 General . 9
4.2 Extraction . 9
4.2.1 Principle . 9
4.2.2 Equipment . 9
4.2.3 Specimen. 11
4.2.4 Procedure . 11
4.2.5 Result . 12
4.3 Breakdown voltage . 12
4.3.1 Principle . 12
4.3.2 Procedure . 12
4.3.3 Result . 13
5 Test 17: Solderability . 13
5.1 General . 13
5.2 Equipment . 13
5.3 Procedure . 14
6 Test 20: Resistance to hydrolysis and to transformer oil . 14
6.1 General . 14
6.2 Round wire . 15
6.2.1 Equipment . 15
6.2.2 Specimens . 15
6.2.3 Procedure . 15
6.3 Rectangular wire . 16
6.3.1 Equipment . 16
6.3.2 Specimens . 16
6.3.3 Procedure . 16
Annex A (informative) Alternative refrigerants to monochlorodifluoromethane . 18
Bibliography . 19

Figure 1 – Pencil and specimen for solvent test . 8
Figure 2 – Refrigerant extractable test siphon cup . 10
Figure 3 – Condenser coil . 11
Figure 4 – Example of carrier for solderability test . 14

Table 1 – Pencil hardness . 9
Table 2 – Volume of components . 16

---------------------- Page: 8 ----------------------

SIST EN 60851-4:2016
IEC 60851-4:2016 © IEC 2016 – 3 –
Table A.1 – Alternative refrigerants to R 22 . 18

---------------------- Page: 9 ----------------------

SIST EN 60851-4:2016
– 4 – IEC 60851-4:2016 © IEC 2016
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________

WINDING WIRES – TEST METHODS –

Part 4: Chemical properties

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, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC
Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 60851-4 has been prepared by IEC technical committee 55:
Winding wires.
This third edition cancels and replaces the second edition published in 1996,
Amendment 1:1997 and Amendment 2:2005. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) revision of Test 16: Resistance to refrigerants;
b) revision of Test 17: Solderability;
c) new Annex A for alternative refrigerants to monochlorodifluoromethane (R 22).

---------------------- Page: 10 ----------------------

SIST EN 60851-4:2016
IEC 60851-4:2016 © IEC 2016 – 5 –
The text of this standard is based on the following documents:
FDIS Report on voting
55/1578/FDIS 55/1580/RVD

Full information on the voting for the approval of this standard can be found in the report on
voting indicated in the above table.
This publication has been drafted in accordance with the ISO/IEC Directives, Part 2.
A list of all the 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 publication will remain unchanged until
the stability date indicated on the IEC website 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.

---------------------- Page: 11 ----------------------

SIST EN 60851-4:2016
– 6 – IEC 60851-4:2016 © IEC 2016
INTRODUCTION
The IEC 60851 series is part of a group of International Standards which define insulated
wires used for windings in electrical equipment:
1) IEC 60851 series, Winding wires – Test methods;
2) IEC 60317 series, Specifications for particular types of winding wires;
3) IEC 60264 series, Packaging of winding wires.

---------------------- Page: 12 ----------------------

SIST EN 60851-4:2016
IEC 60851-4:2016 © IEC 2016 – 7 –
WINDING WIRES – TEST METHODS –

Part 4: Chemical properties



1 Scope
This part of IEC 60851 specifies the following chemical properties tests:
• Test 12: Resistance to solvents;
• Test 16: Resistance to refrigerants;
• Test 17: Solderability;
• Test 20: Resistance to transformer oil.
For definitions, general notes on methods of test and the complete series of methods of test
for winding wires see IEC 60851-1.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and
are indispensable for its application. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any
amendments) applies.
IEC 60296, Fluids for electrotechnical applications – Unused mineral insulating oils for
transformers and switchgear
IEC 60554-1:1977, Specification for cellulosic papers for electrical purposes – Part 1:
Definitions and general requirements
IEC 60851-1, Winding wires – Test methods – Part 1: General
IEC 60851-3:2009, Winding wires – Test methods – Part 3: Mechanical properties
IEC 60851-5:2008, Winding wires – Test methods – Part 5: Electrical properties
ISO 9453, Soft solder alloys – Chemical compositions and forms
3 Test 12: Resistance to solvents
3.1 General
This test is applicable to enamelled round wire with a nominal conductor diameter over
0,250 mm and to enamelled rectangular wire.
The test is not suitable for round wires with a nominal conductor diameter up to and including
0,250 mm.
Resistance to solvents is expressed by the pencil hardness of the wire after solvent
treatment.

---------------------- Page: 13 ----------------------

SIST EN 60851-4:2016
– 8 – IEC 60851-4:2016 © IEC 2016
3.2 Equipment
The following solvents shall be used:
• standard solvent as specified below, or
• solvent as agreed between purchaser and supplier.
The standard solvent shall be a mixture of:
• 60 % by volume white spirit with maximum aromatic content of 18 %;
• 30 % by volume xylene;
• 10 % by volume butanol.
The pencil to be used shall be a lead pencil of the hardness specified in the relevant
standard. Before each test, the point of the pencil shall be sharpened with a smooth-cut file to
form an angle of 60° symmetrical about the axis of the lead according to Figure 1.
2
60°
60°
1 3
IEC

Key
1 Winding wire specimen
2 Pencil
3 Test surface
NOTE Angle tolerances ±5°.
Figure 1 – Pencil and specimen for solvent test
3.3 Procedure
A straight piece of wire, approximately 150 mm in length, shall be preconditioned for
(10 ± 1) min at (130 ± 3) °C in an oven with forced air circulation. A substantial length of the
wire shall then be immersed in standard solvent contained in a glass cylinder and shall be
maintained therein at a temperature of (60 ± 3) °C for a period of (30 ± 3) min. The wire shall

---------------------- Page: 14 ----------------------

SIST EN 60851-4:2016
IEC 60851-4:2016 © IEC 2016 – 9 –
then be removed from the solvent. The hardness of the wire surface shall then be determined
in the following manner within a period of 30 s after removal from the solvent.
The specimen to be tested shall be laid on a smooth hard surface according to Figure 1. In
the case of rectangul
...