1、BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06Arc welding equipmentPart 9: Installation and useBS EN IEC 609749:2018EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IEC 60974-9 June 2018 ICS 25.160.30 Supersedes EN 60974-9:2010 English Version Arc welding equip
2、ment - Part 9: Installation and use (IEC 60974-9:2018) Matriel de soudage larc - Partie 9: Installation et utilisation (IEC 60974-9:2018) Lichtbogenschweieinrichtungen - Teil 9: Errichten und Betreiben (IEC 60974-9:2018) This European Standard was approved by CENELEC on 2018-06-01. CENELEC members a
3、re 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
4、 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 Mana
5、gement 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, Ir
6、eland, 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 Comit Europen de Normalisation Electrotechnique Europ
7、isches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN IEC 60974-9:2018 E National forewordThis British Standard is the U
8、K implementation of EN IEC 609749:2018. It is identical to IEC 609749:2018. It supersedes BS EN 609749:2010, which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee WEE/6, Electric arc welding equipment.A list of organizations represented on this committee can
9、 be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. The British Standards Institution 2018 Published by BSI Standards Limited 2018ISBN 978 0 580 95365 1ICS 25.160.30Compli
10、ance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 June 2018.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN IEC 609749:2018EUROP
11、EAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IEC 60974-9 June 2018 ICS 25.160.30 Supersedes EN 60974-9:2010 English Version Arc welding equipment - Part 9: Installation and use (IEC 60974-9:2018) Matriel de soudage larc - Partie 9: Installation et utilisation (IEC 60974-9:2018) Lichtbogenschweiei
12、nrichtungen - Teil 9: Errichten und Betreiben (IEC 60974-9:2018) This European Standard was approved by CENELEC on 2018-06-01. 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 stand
13、ard 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 i
14、n 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, Croa
15、tia, 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, Switzerla
16、nd, Turkey and the United Kingdom. European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2018 CENELEC All rights of exploitation in
17、any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN IEC 60974-9:2018 E BS EN IEC 609749:2018EN IEC 60974-9:2018 2 European foreword The text of document 26/648/FDIS, future edition 2 of IEC 60974-9, prepared by IEC/TC 26 “Electric welding“ was submitted to the IEC-CENELEC p
18、arallel vote and approved by CENELEC as EN IEC 60974-9:2018. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2019-03-01 latest date by which the national standards confli
19、cting with the document have to be withdrawn (dow) 2021-06-01 This document supersedes EN 60974-9:2010. 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 r
20、ights. Endorsement notice The text of the International Standard IEC 60974-9:2018 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 60
21、204-1. IEC 60364-4-41 NOTE Harmonized as HD 60364-4-41. IEC 60974-2 NOTE Harmonized as EN 60974-2. IEC 60974-3 NOTE Harmonized as EN 60974-3. IEC 60974-5:2013 NOTE Harmonized as EN 60974-5:2013 (not modified). IEC 60974-6:2015 NOTE Harmonized as EN 60974-6:2016 (not modified). IEC 60974-7 NOTE Harmo
22、nized as EN 60974-7. IEC 60974-8 NOTE Harmonized as EN 60974-8. IEC 60974-10 NOTE Harmonized as EN 60974-10. IEC 61008 Series NOTE Harmonized as EN 61008 Series. IEC 61009 Series NOTE Harmonized as EN 61009 Series. IEC 61140 NOTE Harmonized as EN 61140. IEC 62822-1:2016 NOTE Harmonized as EN 62822-1
23、:201X 1(modified). ISO 11611 NOTE Harmonized as EN ISO 11611. 1To be published. BS EN IEC 609749:2018EN IEC 60974-9:2018 3 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents are referred to in the text in suc
24、h 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 modi
25、fied 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 60245-6 - Rubber insulated cables - Rated voltage
26、s up to and including 450/750 V - Part 6: Arc welding electrode cables - - IEC 60755 - General safety requirements for residual current operated protective devices - - IEC 60974-1 - Arc welding equipment - Part 1: Welding power sources EN 60974-1 - IEC 60974-4 - Arc welding equipment - Part 4: Perio
27、dic inspection and testing EN 60974-4 - IEC 60974-11 - Arc welding equipment - Part 11: Electrode holders EN 60974-11 - IEC 60974-12 - Arc welding equipment - Part 12: Coupling devices for welding cables EN 60974-12 - IEC 60974-13 - Arc welding equipment - Part 13: Welding clamp EN 60974-13 - BS EN
28、IEC 609749:2018This page deliberately left blank 2 IEC 60974-9:2018 IEC 2018 CONTENTS FOREWORD . 4 1 Scope 6 2 Normative references . 6 3 Terms and definitions. 6 4 Installation . 8 4.1 General . 8 4.2 Supply circuit 8 4.2.1 Selection of supply cables 8 4.2.2 Supply disconnecting device . 8 4.2.3 Em
29、ergency stopping device 9 4.3 Welding circuit 9 4.3.1 Isolation from the input supply 9 4.3.2 Summation of no-load voltages 9 4.3.3 Welding cables 9 4.3.4 Connection between the welding power source and the workpiece 10 4.3.5 Earthing of the workpiece . 11 4.3.6 Location of gas cylinders 11 5 Electr
30、omagnetic compatibility (EMC) 12 5.1 General . 12 5.2 Assessment of area 12 5.3 Methods of reducing emissions . 12 5.3.1 Public supply system 12 5.3.2 Maintenance of arc-welding equipment . 12 5.3.3 Welding cables 13 5.3.4 Equipotential bonding . 13 5.3.5 Earthing of the workpiece . 13 5.3.6 Screeni
31、ng and shielding . 13 6 Electromagnetic fields (EMF) . 13 6.1 General . 13 6.2 Assessment of exposure . 14 7 Use 14 7.1 General requirements 14 7.2 Connection between several welding power sources 14 7.3 Inspection and maintenance of the welding installation 14 7.3.1 Periodical inspection 14 7.3.2 R
32、outine inspection 15 7.4 Disconnection of welding power sources and/or welding circuits 15 7.5 Guards 15 7.6 Information for operators . 15 7.7 Protective measures 15 7.7.1 Extraneous conductive parts in the welding area . 15 7.7.2 Protection against electric shock 15 7.8 Isolation of the welding ci
33、rcuit from the workpiece and earth when not in use . 16 7.9 Voltage between electrode holders or torches 16 2 IEC 60974-9:2018 IEC 2018 CONTENTS FOREWORD . 4 1 Scope 6 2 Normative references . 6 3 Terms and definitions. 6 4 Installation . 8 4.1 General . 8 4.2 Supply circuit 8 4.2.1 Selection of sup
34、ply cables 8 4.2.2 Supply disconnecting device . 8 4.2.3 Emergency stopping device 9 4.3 Welding circuit 9 4.3.1 Isolation from the input supply 9 4.3.2 Summation of no-load voltages 9 4.3.3 Welding cables 9 4.3.4 Connection between the welding power source and the workpiece 10 4.3.5 Earthing of the
35、 workpiece . 11 4.3.6 Location of gas cylinders 11 5 Electromagnetic compatibility (EMC) 12 5.1 General . 12 5.2 Assessment of area 12 5.3 Methods of reducing emissions . 12 5.3.1 Public supply system 12 5.3.2 Maintenance of arc-welding equipment . 12 5.3.3 Welding cables 13 5.3.4 Equipotential bond
36、ing . 13 5.3.5 Earthing of the workpiece . 13 5.3.6 Screening and shielding . 13 6 Electromagnetic fields (EMF) . 13 6.1 General . 13 6.2 Assessment of exposure . 14 7 Use 14 7.1 General requirements 14 7.2 Connection between several welding power sources 14 7.3 Inspection and maintenance of the wel
37、ding installation 14 7.3.1 Periodical inspection 14 7.3.2 Routine inspection 15 7.4 Disconnection of welding power sources and/or welding circuits 15 7.5 Guards 15 7.6 Information for operators . 15 7.7 Protective measures 15 7.7.1 Extraneous conductive parts in the welding area . 15 7.7.2 Protectio
38、n against electric shock 15 7.8 Isolation of the welding circuit from the workpiece and earth when not in use . 16 7.9 Voltage between electrode holders or torches 16 BS EN IEC 609749:2018IEC 60974-9:2018 IEC 2018 3 7.10 Welding in an environment with increased risk of electric shock . 18 7.11 Use o
39、f shoulder slings . 18 7.12 Welding at elevated positions 19 7.13 Welding with suspended welding equipment 19 8 Battery-powered welding power sources . 19 8.1 Safety recommendations . 19 8.2 Transportation . 19 Annex A (informative) Hazards associated with arc welding 20 A.1 General . 20 A.2 Equipme
40、nt condition and maintenance . 20 A.3 Operation 20 A.4 Training 20 A.5 Arc radiation 20 A.5.1 General 20 A.5.2 Eye and face protection (see also A.9) . 21 A.5.3 Body protection (see also A.9) 21 A.5.4 Protection of persons in the vicinity of an arc 21 A.6 EMF 21 A.6.1 General 21 A.6.2 Body protectio
41、n 21 A.6.3 Protection of persons in the vicinity of the welding operation . 21 A.7 Welding fume 21 A.8 Noise 22 A.9 Fire and explosion . 24 A.9.1 General 24 A.9.2 Fire 24 A.9.3 Explosion . 24 A.10 General protective clothing 24 A.11 Confined spaces . 24 Annex B (informative) Voltage drops in the wel
42、ding circuit 26 Bibliography 28 Figure 1 Example of DC voltage between electrode holders or torches 17 Figure 2 Example of AC voltage between electrode holders or torches Single-phase supply from the same pair of lines of a three-phase mains supply 17 Figure 3 Example of AC voltage between electrode
43、 holders or torches Single-phase supply from different pairs of lines of a three-phase mains supply 17 Figure 4 Example of AC voltage between electrode holders connected between different lines of output 18 Figure A.1 Steps for the control of welding fumes . 23 Figure A.2 Example steps of operation
44、for work in confined spaces 25 Figure B.1 Example of MIG/MAG equipment . 26 Table 1 Current ratings for copper welding cables . 10 Table B.1 Voltage drop in copper and aluminium welding cables at normal and elevated temperatures . 27 BS EN IEC 609749:2018 4 IEC 60974-9:2018 IEC 2018 INTERNATIONAL EL
45、ECTROTECHNICAL COMMISSION _ ARC WELDING EQUIPMENT Part 9: Installation and use 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 promot
46、e 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 (h
47、ereafter 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 p
48、articipate 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
49、, 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 an
