SIST EN 60974-8:2009
Arc welding equipment -- Part 8: Gas consoles for welding and plasma cutting systems
Arc welding equipment -- Part 8: Gas consoles for welding and plasma cutting systems
This part of IEC 60974 specifies safety and performance requirements for gas consoles intended to be used with combustible gases or oxygen. These gas consoles are designed to supply gases for use in arc welding, plasma cutting, gouging and allied processes in nonexplosive atmospheres. The gas console can be external or internal to the power source enclosure. In the latter case, this standard also applies to the power source.
Lichtbogenschweißeinrichtungen -- Teil 8: Gaskonsolen für Schweiß- und Plasmaschneidsysteme
Matériel de soudage à l'arc -- Partie 8: Consoles de gaz pour soudage et systèmes de coupage plasma
La CEI 60974-8:2009 spécifie les exigences de performance et de sécurité concernant les consoles de gaz destinées à être utilisées avec des gaz combustibles ou de l'oxygène. Ces consoles de gaz sont conçues pour fournir du gaz au soudage à l'arc, au coupage plasma, au gougeage et aux procédés connexes dans des atmosphères non explosives. Les modifications significatives par rapport à l'édition antérieure sont les suivantes: - retrait de la conception de sécurité intrinsèque; - introduction de la fonction mélange du gaz; - nouvelle disposition informative de la plaque signalétique; - modifications induites par la publication de l'édition 3 de la CEI 60974-1.
Oprema za obločno varjenje - 8. del: Plinske konzole za varilne in plazemske rezalne sisteme (IEC 60974-8:2009)
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Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2009
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SIST EN 60974-8:2004
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Arc welding equipment -- Part 8: Gas consoles for welding and plasma cutting systems
Lichtbogenschweißeinrichtungen -- Teil 8: Gaskonsolen für Schweiß- und
Plasmaschneidsysteme
Matériel de soudage à l'arc -- Partie 8: Consoles de gaz pour soudage et systèmes de
coupage plasma
Ta slovenski standard je istoveten z: EN 60974-8:2009
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 60974-8
NORME EUROPÉENNE
March 2009
EUROPÄISCHE NORM
ICS 25.160 Supersedes EN 60974-8:2004
English version
Arc welding equipment -
Part 8: Gas consoles for welding
and plasma cutting systems
(IEC 60974-8:2009)
Matériel de soudage à l'arc - Lichtbogenschweißeinrichtungen -
Partie 8: Consoles de gaz pour soudage Teil 8: Gaskonsolen für
et systèmes de coupage plasma Schweiß- und Plasmaschneidsysteme
(CEI 60974-8:2009) (IEC 60974-8:2009)
This European Standard was approved by CENELEC on 2009-03-01. 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 Central Secretariat 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 Central Secretariat has the same status as the official versions.
CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the
Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
Sweden, Switzerland and the United Kingdom.
CENELEC
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
Central Secretariat: avenue Marnix 17, B - 1000 Brussels
© 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members.
Ref. No. EN 60974-8:2009 E
Foreword
The text of document 26/381/CDV, future edition 2 of IEC 60974-8, prepared by IEC TC 26, Electric
welding, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as
EN 60974-8 on 2009-03-01.
This European Standard supersedes EN 60974-8:2004.
The significant changes with respect to EN 60974-8:2004 are the following:
– removal of intrinsically safe design;
– introduction of gas mixing function;
– new informative rating plate layout;
– induced changes due to publication of EN 60974-1:2005.
This standard is to be used in conjunction with EN 60974-1.
The following dates were fixed:
– latest date by which the EN has to be implemented
at national level by publication of an identical
national standard or by endorsement (dop) 2009-12-01
– latest date by which the national standards conflicting
with the EN have to be withdrawn (dow) 2012-03-01
Annex ZA has been added by CENELEC.
__________
Endorsement notice
The text of the International Standard IEC 60974-8:2009 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 60204-1 NOTE Harmonized as EN 60204-1:2006 (modified).
IEC 60664-1 NOTE Harmonized as EN 60664-1:2007 (not modified).
IEC 60974-2 NOTE Harmonized as EN 60974-2:2008 (not modified).
IEC 60974-3 NOTE Harmonized as EN 60974-3:2007 (not modified).
IEC 60974-7 NOTE Harmonized as EN 60974-7:2005 (not modified).
IEC 61010-1 NOTE Harmonized as EN 61010-1:2001 (not modified).
__________
- 3 - EN 60974-8:2009
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications
The following referenced documents are indispensable for the application 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 When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD
applies.
Publication Year Title EN/HD Year
1)
IEC 60050-151 - International Electrotechnical Vocabulary - -
(IEV) -
Part 151: Electrical and magnetic devices
1) 2)
IEC 60529 - Degrees of protection provided EN 60529 1991
by enclosures (IP Code) + corr. May 1993
IEC 60974-1 2005 Arc welding equipment - EN 60974-1 2005
Part 1: Welding power sources
1)
Undated reference.
2)
Valid edition at date of issue.
IEC 60974-8 ®
Edition 2.0 2009-02
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
Arc welding equipment –
Part 8: Gas consoles for welding and plasma cutting systems
Matériel de soudage à l’arc –
Partie 8: Consoles de gaz pour soudage et systèmes de coupage plasma
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
PRICE CODE
INTERNATIONALE
Q
CODE PRIX
ICS 25.160 ISBN 2-8318-1027-7
– 2 – 60974-8 © IEC:2009
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 External gas console .8
5.5.2 Internal gas console .8
6 Protection against electric shock .8
6.1 Insulation .8
6.2 Protection against electric shock in normal service (direct contact) .8
6.2.1 Protection provided by the enclosure.8
6.2.2 Capacitors .8
6.3 Protection against electric shock in case of a fault condition (indirect contact) .8
7 Thermal requirements.9
7.1 Heating test.9
7.2 Maximum temperature.9
8 Connections for plasma cutting torches .9
9 Mechanical requirements.9
9.1 Protection against fire or explosion.9
9.2 Gas line purging .9
9.3 Enclosure .10
9.3.1 Design requirements.10
9.3.2 Enclosure purging.10
9.3.3 Safe design of gas console.11
9.3.4 Open structure.11
9.3.5 Solid filled enclosure .11
9.4 External gas console .11
9.5 Internal gas console .12
10 Gas lines .12
10.1 Gas hoses and tubing.12
10.2 Gas fittings.12
10.3 Leak test .12
11 Control circuits .13
12 Rating plate.13
12.1 External gas console .13
12.2 Internal gas console .13
13 Instructions and markings.14
13.1 Instructions .14
13.2 Marking .14
60974-8 © IEC:2009 – 3 –
Annex A (informative) Mechanized plasma system diagram .15
Annex B (informative) Example of a rating plate layout .16
Bibliography.17
Figure A.1 – Example of a mechanized plasma system .15
Figure B.1 – Principle of a rating plate .16
Table 1 – Colour coding and marking.12
– 4 – 60974-8 © IEC:2009
INTERNATIONAL ELECTROTECHNICAL COMMISSION
___________
ARC WELDING EQUIPMENT –
Part 8: Gas consoles for welding and plasma cutting systems
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
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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 n
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