IEC 60974-12:2022
(Main)Arc welding equipment - Part 12: Coupling devices for welding cables
Arc welding equipment - Part 12: Coupling devices for welding cables
IEC 60974-12:2022 is applicable to coupling devices for cables used in arc welding and allied processes, designed for connection and disconnection without using tools. This fourth edition cancels and replaces the third edition published in 2011. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- updated Table 1 to include 100 % duty cycle;
- updated Annex A to provide more detail.
Matériel de soudage à l'arc - Partie 12: Dispositifs de connexion pour câbles de soudage
L'IEC 60974-12:2022 s'applique aux dispositifs de connexion pour câbles utilisés lors du soudage et des techniques connexes conçus pour assurer les opérations de connexion et de déconnexion sans emploi d'outils. Cette quatrième édition annule et remplace la troisième édition parue en 2011. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
- mise à jour du Tableau 1 pour inclure le facteur de marche de 100 %;
- mise à jour de l'Annexe A pour fournir plus de détails.
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IEC 60974-12 ®
Edition 4.0 2022-07
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Arc welding equipment –
Part 12: Coupling devices for welding cables
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International Standards for all electrical, electronic and related technologies.
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IEC 60974-12 ®
Edition 4.0 2022-07
REDLINE VERSION
INTERNATIONAL
STANDARD
colour
inside
Arc welding equipment –
Part 12: Coupling devices for welding cables
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 25.160.30 ISBN 978-2-8322-3980-3
– 2 – IEC 60974-12:2022 RLV © IEC 2022
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Environmental conditions . 7
5 Type Tests . 7
5.1 Test conditions . 7
5.2 Measuring instruments . 7
5.3 Test sequence . 7
6 Designation . 7
7 Protection against electric shock . 8
7.1 Voltage rating . 8
7.2 lnsulation resistance . 8
7.3 Dielectric strength . 9
7.3.1 General requirement . 9
7.3.2 Additional requirements for ARC STRIKING VOLTAGE or ARC STABILIZING
VOLTAGE rating . 9
7.4 Protection of live parts against unintentional contact . 9
8 Thermal rating . 10
8.1 Temperature rise . 10
8.2 Resistance to hot objects . 10
9 Mechanical requirements . 11
9.1 RETAINING MEANS . 11
9.2 Welding cable entry . 11
9.3 Penetration of the welding cable insulation . 11
9.4 Welding cable connection . 11
9.5 Crush strength . 12
9.6 Dimensions . 12
10 Marking . 12
11 Instructions for use . 13
Annex A (normative) Dimensions . 14
Bibliography . 17
Figure 1 – Device for testing the resistance to hot objects . 10
Figure A.1 – Male element . 14
Figure A.2 – Female element . 14
Figure A.3 – Type 1 locking pin maximum outline shape . 15
Figure A.4 – Type 2 locking pin maximum outline shape . 16
Figure A.5 – Type 3 locking pin maximum outline shape . 16
Table 1 – Relation between COUPLING DEVICE test current and welding cables' cross-
sectional area . 8
Table 2 – Voltage rating of COUPLING DEVICES . 8
Table 3 – Crush force . 12
Table A.1 – Dimensions for Figure A.1, Figure A.2, Figure A.3, Figure A.4, and
Figure A.5 . 15
– 4 – IEC 60974-12:2022 RLV © IEC 2022
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ARC WELDING EQUIPMENT –
Part 12: Coupling devices for welding cables
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.
This redline version of the official IEC Standard allows the user to identify the changes made to
the previous edition IEC 60974-12:2011. A vertical bar appears in the margin wherever a change
has been made. Additions are in green text, deletions are in strikethrough red text.
IEC 60974-12 has been prepared by IEC technical committee 26: Electric welding. It is an
International Standard.
This fourth edition cancels and replaces the third edition published in 2011. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) updated Table 1 to include 100 % duty cycle;
b) updated Annex A to provide more detail.
The text of this document is based on the following documents:
Draft Report on voting
26/734/FDIS 26/736/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.
In this document, the following print types are used:
– conformity statements: in italic type.
– terms used throughout this document which have been defined in Clause 3: SMALL ROMAN
CAPITALS.
A list of all parts of the IEC 60974 series can be found, under the general title Arc welding
equipment, 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 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.
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.
– 6 – IEC 60974-12:2022 RLV © IEC 2022
ARC WELDING EQUIPMENT –
Part 12: Coupling devices for welding cables
1 Scope
This part of IEC 60974 is applicable to COUPLING DEVICES for cables used in arc welding and
allied processes, designed for connection and disconnection without using tools.
This part of IEC 60974 specifies safety and performance requirements
...
IEC 60974-12 ®
Edition 4.0 2022-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Arc welding equipment –
Part 12: Coupling devices for welding cables
Matériel de soudage à l'arc –
Partie 12: Dispositifs de connexion pour câbles de soudage
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.
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ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
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les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.
IEC Secretariat Tel.: +41 22 919 02 11
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CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform IEC Products & Services Portal - products.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always
committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 300 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 19 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary
(IEV) online.
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If you wish to give us your feedback on this publication or
need further assistance, please contact the Customer Service
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IEC 60974-12 ®
Edition 4.0 2022-07
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Arc welding equipment –
Part 12: Coupling devices for welding cables
Matériel de soudage à l'arc –
Partie 12: Dispositifs de connexion pour câbles de soudage
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.160.30 ISBN 978-2-8322-3971-1
– 2 – IEC 60974-12:2022 © IEC 2022
CONTENTS
FOREWORD . 4
1 Scope . 6
2 Normative references . 6
3 Terms and definitions . 6
4 Environmental conditions . 7
5 Tests . 7
5.1 Test conditions . 7
5.2 Measuring instruments . 7
5.3 Test sequence . 7
6 Designation . 7
7 Protection against electric shock . 8
7.1 Voltage rating . 8
7.2 lnsulation resistance . 8
7.3 Dielectric strength . 9
7.3.1 General requirement . 9
7.3.2 Additional requirements for ARC STRIKING VOLTAGE or ARC STABILIZING
VOLTAGE rating . 9
7.4 Protection of live parts against unintentional contact . 9
8 Thermal rating . 10
8.1 Temperature rise . 10
8.2 Resistance to hot objects . 10
9 Mechanical requirements . 11
9.1 RETAINING MEANS . 11
9.2 Welding cable entry . 11
9.3 Penetration of the welding cable insulation . 11
9.4 Welding cable connection . 11
9.5 Crush strength . 11
9.6 Dimensions . 12
10 Marking . 12
11 Instructions for use . 13
Annex A (normative) Dimensions . 14
Bibliography . 17
Figure 1 – Device for testing the resistance to hot objects . 10
Figure A.1 – Male element . 14
Figure A.2 – Female element . 14
Figure A.3 – Type 1 locking pin maximum outline shape . 15
Figure A.4 – Type 2 locking pin maximum outline shape . 16
Figure A.5 – Type 3 locking pin maximum outline shape . 16
Table 1 – Relation between COUPLING DEVICE test current and welding cables' cross-
sectional area . 8
Table 2 – Voltage rating of COUPLING DEVICES . 8
Table 3 – Crush force . 12
Table A.1 – Dimensions for Figure A.1, Figure A.2, Figure A.3, Figure A.4, and
Figure A.5 . 15
– 4 – IEC 60974-12:2022 © IEC 2022
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
ARC WELDING EQUIPMENT –
Part 12: Coupling devices for welding cables
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 ri
...
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