EN IEC 60974-3:2019
(Main)Arc welding equipment - Part 3: Arc striking and stabilizing devices
Arc welding equipment - Part 3: Arc striking and stabilizing devices
This part of IEC 60974 specifies safety requirements for industrial and professional ARC STRIKING and ARC STABILIZING DEVICES used in arc welding and allied processes. This document is applicable to ARC STRIKING and STABILIZING DEVICES which are stand-alone (separate from the welding equipment) or built in (housed in a single enclosure with other arc welding equipment). NOTE 1 Typical allied processes are, for example, plasma arc cutting and arc spraying. NOTE 2 This document does not include electromagnetic compatibility (EMC) requirements.
Lichtbogenschweißeinrichtungen - Teil 3: Lichtbogenzünd- und -stabilisierungseinrichtungen
Matériel de soudage à l’arc - Partie 3: Dispositifs d'amorçage et de stabilisation de l'arc
La présente partie de l'IEC 60974 spécifie les exigences de sécurité pour les dispositifs d'amorçage et de stabilisation industriels et professionnels utilisés en soudage à l'arc et les procédés connexes. Ce document s'applique aux DISPOSITIFS D'AMORÇAGE ET DE STABILISATION DE L'ARC qui sont indépendants (séparés du matériel de soudage) ou incorporés (intégrés dans une seule enveloppe avec d'autres matériels de soudage à l'arc). NOTE 1 Le coupage à l'arc plasma et la projection au plasma sont des exemples de procédés connexes typiques. NOTE 2 Le présent document ne contient pas les exigences de compatibilité électromagnétique (CEM).
Oprema za obločno varjenje - 3. del: Obločni udari in stabilizatorji (IEC 60974-3:2019)
Ta dokument določa varnostne zahteve za industrijske in strokovne OBLOČNE UDARE in OBLOČNE STABILIZATORJE, ki se uporabljajo pri obločnem varjenju in povezanih postopkih Ta dokument se uporablja za samostojne OBLOČNE UDARE in STABILIZATORJE (ločene od opreme za varjenje) ali za vgrajene (v skupnem ohišju z drugo opremo za obločno varjenje).
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
01-februar-2020
Nadomešča:
SIST EN 60974-3:2014
Oprema za obločno varjenje - 3. del: Obločni udari in stabilizatorji (IEC 60974-
3:2019)
Arc welding equipment - Part 3: Arc striking and stabilizing devices (IEC 60974-3:2019)
Lichtbogenschweißeinrichtungen - Teil 3: Lichtbogenzünd- und -
stabilisierungseinrichtungen (IEC 60974-3:2019)
Matériel de soudage à l'arc - Partie 3: Dispositifs d'amorçage et de stabilisation de l'arc
(IEC 60974-3:2019)
Ta slovenski standard je istoveten z: EN IEC 60974-3:2019
ICS:
25.160.30 Varilna oprema Welding equipment
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD EN IEC 60974-3
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2019
ICS 25.160.30 Supersedes EN 60974-3:2014 and all of its amendments
and corrigenda (if any).
English Version
Arc welding equipment - Part 3: Arc striking and stabilizing
devices
(IEC 60974-3:2019)
Matériel de soudage à l'arc - Partie 3: Dispositifs Lichtbogenschweißeinrichtungen - Teil 3: Lichtbogenzünd-
d'amorçage et de stabilisation de l'arc und -stabilisierungseinrichtungen
(IEC 60974-3:2019) (IEC 60974-3:2019)
This European Standard was approved by CENELEC on 2019-03-06. 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, Serbia, 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: Rue de la Science 23, B-1040 Brussels
© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 60974-3:2019 E
European foreword
The text of document 26/671/FDIS, future edition 4 of IEC 60974-3, prepared by IEC/TC 26 "Electric
welding" 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) 2020-05-08
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2022-11-08
document have to be withdrawn
This document supersedes EN 60974-3:2014 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.
Endorsement notice
The text of the International Standard IEC 60974-3:2019 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 60974 (series) NOTE Harmonized as EN IEC 60974 (series)
IEC 60384-14 NOTE Harmonized as EN 60384-14
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.cenelec.eu.
Publication Year Title EN/HD Year
IEC 60974-1 2017 Arc welding equipment - Part 1: Welding power EN IEC 60974-1 2018
sources
+ A1 2019 + A1 2019
IEC 60974-7 2013 Arc welding equipment - Part 7: Torches EN 60974-7 2013
IEC 61140 - Protection against electric shock - Common EN 61140 2016
aspects for installation and equipment
Annex ZZ
(informative)
Relationship between this European standard and the safety objectives of
Directive 2014/35/EU [2014 OJ L96] aimed to be covered
This European Standard has been prepared under a Commission’s standardization request relating to
harmonized standards in the field of the Low Voltage Directive, M/511, to provide one voluntary means
of conforming to safety objectives of Directive 2014/35/EU of the European Parliament and of the
Council of 26 February 2014 on the harmonization of the laws of the Member States relating to the
making available on the market of electrical equipment designed for use within certain voltage limits
[2014 OJ L96].
Once this standard is cited in the Official Journal of the European Union under that Directive,
compliance with the normative clauses of this standard given in Table ZZ.1 confers, within the limits of
the scope of this standard, a presumption of conformity with the corresponding safety objectives of
that Directive, and associated EFTA regulations.
Table ZZ.1 – Correspondence between this European standard and Annex I of Directive
2014/35/EU [2014 OJ L96]
Clause(s) / sub-clause(s)
Safety objectives of
Remarks / Notes
Directive 2014/35/EU
of this EN
1(a) Clauses 15, 17
1(b) Clause 17.1
Testing during periodic maintenance
1(c) or after repair is covered in separate
standards
Clauses 6.1, 6.2, 6.3, 10, 11,
2(a)
12, 17.1
Hazards arising from electric,
magnetic, and electromagnetic fields,
Clauses 6.1, 6.2, 6.3, 7, 11,
2(b) other ionizing and non-ionizing
radiation are covered in separate
standards
Acoustic noise is covered in separate
2(c) Clauses 6.2, 9, 10,14
standards
2(d) Clause 6.1
3(a) Clause 14
Functional safety is covered in
separate standards
3(b) Clauses 4, 6.2, 10, 14
Safety-related security is covered in
separate standards
3(c) Clause 9
WARNING 1 — Presumption of conformity stays valid only as long as a reference to this European
standard is maintained in the list published in the Official Journal of the European Union. Users of this
standard should consult frequently the latest list published in the Official Journal of the European
Union.
WARNING 2 — Other Union legislation may be applicable to the product(s) falling within the scope of
this standard.
IEC 60974-3 ®
Edition 4.0 2019-01
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Arc welding equipment –
Part 3: Arc striking and stabilizing devices
Matériel de soudage à l’arc –
Partie 3: Dispositifs d'amorçage et de stabilisation de l'arc
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 25.160.30 ISBN 978-2-8322-6498-0
– 2 – IEC 60974-3:2019 © IEC 2019
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 Conformity of components . 7
5.4 Type tests . 7
5.5 Routine tests. 8
5.5.1 Stand-alone unit . 8
5.5.2 Built-in unit . 8
6 Protection against electric shock . 8
6.1 Insulation . 8
6.1.1 General . 8
6.1.2 Clearances . 8
6.1.3 Creepage distances . 8
6.1.4 Insulation resistance . 9
6.1.5 Dielectric strength . 9
6.2 Protection against electric shock in normal service (direct contact) . 10
6.3 Protection against electric shock in case of a fault condition (indirect
contact) . 10
6.4 Protective provision . 10
7 Thermal requirements . 10
8 Thermal protection. 10
9 Abnormal operation . 10
10 Connection to the supply network . 11
11 Output . 11
11.1 Rated peak voltage . 11
11.2 Impulse current . 12
11.2.1 Risk of electric shock . 12
11.2.2 Electric charge. 12
11.2.3 Direct contact . 12
11.2.4 Series contact. 13
11.3 Mean energy . 14
11.4 Output circuit capacitance discharging . 15
11.5 Additional requirements . 15
12 Control circuits . 16
13 Hazard reducing device . 16
14 Mechanical provisions . 16
15 Rating plate . 16
15.1 General requirements . 16
15.2 Description . 17
15.3 Contents . 17
IEC 60974-3:2019 © IEC 2019 – 3 –
16 Adjustment of the output . 18
17 Instructions and markings . 18
17.1 Instructions .
...
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