Arc welding equipment - Part 1: Welding power sources

IEC 60974-1:2012 is applicable to power sources for arc welding and allied processes designed for industrial and professional use, and supplied by a voltage not exceeding 1 000 V, or driven by mechanical means. This part of IEC 60974 specifies safety and performance requirements of welding power sources and plasma cutting systems. This fourth edition cancels and replaces the third edition published in 2005 and constitutes a technical revision. The significant changes with respect to the previous edition are the following: - the heating test shall be carried out at ambient temperature of 40 °C (see 5.1); - new Figure 1 summarizes example of insulation requirements; - creepage distances for pollution degree 4 are no longer valid (see Table 2); - insulation requirements for Class II equipment are defined (see Table 3); - dielectric test voltage interpolation restriction lower limit is changed to 220 V and interpolation for control and welding circuit is clarified (see Table 4); - water test is clarified by suppression of visual inspection (see 6.2.1); - isolation requirements of the supply circuit and the welding circuit are moved in protection against electric shock in normal service (see 6.2.4); - touch current in normal service and in single fault condition requirements are changed (see 6.2.5, 6.2.6 and 6.3.6); - maximum temperature for insulation systems are reviewed in accordance with current edition of IEC 60085 (see Table 6); - limits of temperature rise for external surfaces are updated depending of unintentional contact period as defined in ISO 13732-1 (see Table 7); - loading test is completed by a dielectric test (see 7.4); - conformity test for tolerance to supply voltage fluctuation is clarified (see 10.1); - marking of terminals is limited to external protective conductor and three-phase equipment terminals (see 10.4); - usage of hazard reducing device is clarified (see 11.1); - requirements for control circuits are changed (see Clause 12); - impact test is clarified (see 14.2.2); - environmental parameters are completed (see Annex M).

Lichtbogenschweißeinrichtungen - Teil 1: Schweißstromquellen

Matériel de soudage à l'arc - Partie 1: Sources de courant de soudage

La CEI 60974-1:2012 s'applique aux sources de courant de soudage à l'arc et techniques connexes conçues pour un usage industriel et professionnel et alimentées sous une tension ne dépassant pas 1 000 V, ou entraînées par des moyens mécaniques. La présente partie de la CEI 60974 spécifie les exigences de sécurité et de fonctionnement des sources de courant de soudage et des systèmes de coupage plasma. Cette quatrième édition annule et remplace la troisième édition parue en 2005, et constitue une révision technique. Les modifications majeures par rapport à l'édition précédente sont les suivantes: - l'essai d échauffement doit être réalisé à une température ambiante de 40 °C (voir 5.1); - la nouvelle Figure 1 fournit un récapitulatif des exigences d'isolement; - les lignes de fuite pour le degré de pollution 4 ne sont plus valables (voir Tableau 2); - les exigences d'isolement pour le matériel de Classe II sont définies (voir Tableau 3); - la limite inférieure restrictive d'interpolation de la tension d'essai diélectrique est modifiée et passe à 220 V et l'interpolation pour le circuit de commande et de soudage est clarifié (voir Tableau 4); - l'essai à l'eau est simplifié par la suppression de l'examen visuel (voir 6.2.1); - les exigences d'isolement du circuit d'alimentation et du circuit de soudage sont transformées en protection contre les chocs électriques en service normal (voir 6.2.4); - les exigences relatives au courant de contact en service normal et en condition de défaut simple sont modifiées (voir 6.2.5, 6.2.6 et 6.3.6); - les valeurs de température maximale pour les systèmes d'isolement sont révisées conformément à l'édition actuelle de la CEI 60085 (voir Tableau 6); - les limites d'échauffement pour les surfaces externes sont mises à jour en fonction de la durée des contacts involontaires, telle que définie dans l'ISO 13732-1 (voir Tableau 7); - l'essai en charge est complété par un essai diélectrique (voir 7.4); - l'essai de conformité pour les tolérances aux fluctuations de la tension d'alimentation est clarifié (voir 10.1); - le marquage des bornes est limité aux bornes des conducteurs de protection externes et des matériels triphasés (voir 10.4); - l'usage des dispositifs réducteurs de risques est clarifié (voir 11.1); - les exigences relatives aux circuits de commande sont modifiées (voir l'Article 12); - l'essai au choc est clarifié (voir 14.2.2); - les paramètres d'ambiance sont complétés (voir Annexe M).

Naprave za obločno varjenje - 1. del: Viri varilnega toka

Ta del standarda IEC 60974 se uporablja za vire toka za obločno varjenje in z njim povezane postopke, namenjene za profesionalno in industrijsko uporabo, ki se napajajo z napetostjo, manjšo od 1 000 V, ali jih poganjajo mehanska sredstva. Ta del standarda IEC 60974 določa zahteve glede varnosti in zmogljivosti za vire varilnega toka in plazemske rezalne sisteme. Ta del standarda IEC 60974 se ne uporablja za vire varilnega toka za ročno obločno varjenje za omejeno uporabo, ki so namenjeni predvsem za laično uporabo in so oblikovani v skladu s standardom IEC 60974-6. Ta del standarda IEC 60974 se ne uporablja za preskušanje virov toka med periodičnim vzdrževanjem ali po popravilu.

General Information

Status
Withdrawn
Publication Date
09-Aug-2012
Withdrawal Date
16-Jul-2015
Technical Committee
Drafting Committee
Current Stage
9960 - Withdrawal effective - Withdrawal
Start Date
28-Sep-2021
Completion Date
28-Sep-2021

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 60974-1:2012
01-oktober-2012
1DSUDYH]DREORþQRYDUMHQMHGHO9LULYDULOQHJDWRND
Arc welding equipment - Part 1: Welding power sources
Lichtbogenschweißeinrichtungen - Teil 1: Schweißstromquellen
Matériel de soudage à l'arc - Partie 1: Sources de courant de soudage
Ta slovenski standard je istoveten z: EN 60974-1:2012
ICS:
25.160.30 Varilna oprema Welding equipment
SIST EN 60974-1:2012 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 60974-1:2012

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SIST EN 60974-1:2012

EUROPEAN STANDARD
EN 60974-1

NORME EUROPÉENNE
August 2012
EUROPÄISCHE NORM

ICS 25.160 Supersedes EN 60974-1:2005


English version


Arc welding equipment -
Part 1: Welding power sources
(IEC 60974-1:2012)


Matériel de soudage à l'arc -  Lichtbogenschweißeinrichtungen -
Partie 1: Sources de courant de soudage Teil 1: Schweißstromquellen
(CEI 60974-1:2012) (IEC 60974-1:2012)





This European Standard was approved by CENELEC on 2012-07-17. 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.

CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung

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© 2012 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60974-1:2012 E

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SIST EN 60974-1:2012
EN 60974-1:2012 - 2 -
Foreword
The text of document 26/472/FDIS, future edition 4 of IEC 60974-1, prepared by IEC/TC 26, "Electric
welding" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 60974-
1:2012.

The following dates are fixed:
(dop) 2013-04-17
• latest date by which the document has
to be implemented at national level by
publication of an identical national
standard or by endorsement
(dow) 2015-07-17
• latest date by which the national
standards conflicting with the
document have to be withdrawn

This document supersedes EN 60974-1:2005.
EN 60974-1:2012 includes the following significant technical changes with respect to EN 60974-1:2005:
– the heating test shall be carried out at ambient temperature of 40 °C (see 5.1);
– new Figure 1 summarizes example of insulation requirements;
– creepage distances for pollution degree 4 are no longer valid (see Table 2);
– insulation requirements for Class II equipment are defined (see Table 3);
– dielectric test voltage interpolation restriction lower limit is changed to 220 V and interpolation for control
and welding circuit is clarified (see Table 4);
– water test is clarified by suppression of visual inspection (see 6.2.1);
– isolation requirements of the supply circuit and the welding circuit are moved in protection against
electric shock in normal service (see 6.2.4);
– touch current in normal service and in single fault condition requirements are changed (see 6.2.5, 6.2.6
and 6.3.6);
– maximum temperature for insulation systems are reviewed in accordance with current edition of
EN 60085 (see Table 6);
– limits of temperature rise for external surfaces are updated depending of unintentional contact period as
defined in EN ISO 13732-1 (see Table 7);
– loading test is completed by a dielectric test (see 7.4);
– conformity test for tolerance to supply voltage fluctuation is clarified (see 10.1);
– marking of terminals is limited to external protective conductor and three-phase equipment terminals
(see 10.4);
– usage of hazard reducing device is clarified (see 11.1);
– requirements for control circuits are changed (see Clause 12);
– impact test is clarified (see 14.2.2);
– environmental parame
...

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