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BS EN IEC 60974-9:2018 – TC:2020 Edition

BS EN IEC 60974-9:2018 – TC:2020 Edition

$217.84

Tracked Changes. Arc welding equipment – Installation and use

Published By Publication Date Number of Pages
BSI 2020 70
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IEC 60974-9:2018 is also available as /2 which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 60974-9:2018 is applicable to requirements for installation and instructions for use of equipment for arc welding and allied processes designed in accordance with safety requirements of IEC 60974-1, IEC 60974-6 or equivalent. This standard cancels and replaces the first edition published in 2010. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: – addition of a new Clause 8; – addition of interpolation details in Table 1.

PDF Catalog

PDF Pages PDF Title
36 undefined
41 English
CONTENTS
43 FOREWORD
45 1 Scope
2 Normative references
3 Terms and definitions
47 4 Installation
4.1 General
4.2 Supply circuit
4.2.1 Selection of supply cables
4.2.2 Supply disconnecting device
48 4.2.3 Emergency stopping device
4.3 Welding circuit
4.3.1 Isolation from the input supply
4.3.2 Summation of no-load voltages
4.3.3 Welding cables
49 4.3.4 Connection between the welding power source and the workpiece
Tables
Table 1 ā€“ Current ratings for copper welding cables
50 4.3.5 Earthing of the workpiece
4.3.6 Location of gas cylinders
51 5 Electromagnetic compatibility (EMC)
5.1 General
5.2 Assessment of area
5.3 Methods of reducing emissions
5.3.1 Public supply system
5.3.2 Maintenance of arc-welding equipment
52 5.3.3 Welding cables
5.3.4 Equipotential bonding
5.3.5 Earthing of the workpiece
5.3.6 Screening and shielding
6 Electromagnetic fields (EMF)
6.1 General
53 6.2 Assessment of exposure
7 Use
7.1 General requirements
7.2 Connection between several welding power sources
7.3 Inspection and maintenance of the welding installation
7.3.1 Periodical inspection
54 7.3.2 Routine inspection
7.4 Disconnection of welding power sources and/or welding circuits
7.5 Guards
7.6 Information for operators
7.7 Protective measures
7.7.1 Extraneous conductive parts in the welding area
7.7.2 Protection against electric shock
55 7.8 Isolation of the welding circuit from the workpiece and earth when not in use
7.9 Voltage between electrode holders or torches
56 Figures
Figure 1 ā€“ Example of DC voltage between electrode holders or torches
Figure 2 ā€“ Example of AC voltage between electrode holders or torches ā€“Single-phase supply from the same pair of lines of a three-phase mains supply
Figure 3 ā€“ Example of AC voltage between electrode holders or torches ā€“Single-phase supply from different pairs of lines of a three-phase mains supply
57 7.10 Welding in an environment with increased risk of electric shock
7.11 Use of shoulder slings
Figure 4 ā€“ Example of AC voltage between electrode holders connected between different lines of output
58 7.12 Welding at elevated positions
7.13 Welding with suspended welding equipment
8 Battery-powered welding power sources
8.1 Safety recommendations
8.2 Transportation
59 Annex A (informative) Hazards associated with arc welding
A.1 General
A.2 Equipment condition and maintenance
A.3 Operation
A.4 Training
A.5 Arc radiation
A.5.1 General
60 A.5.2 Eye and face protection (see also A.9)
A.5.3 Body protection (see also A.9)
A.5.4 Protection of persons in the vicinity of an arc
A.6 EMF
A.6.1 General
A.6.2 Body protection
A.6.3 Protection of persons in the vicinity of the welding operation
A.7 Welding fume
61 A.8 Noise
62 Figure A.1 ā€“ Steps for the control of welding fumes
63 A.9 Fire and explosion
A.9.1 General
A.9.2 Fire
A.9.3 Explosion
A.10 General protective clothing
A.11 Confined spaces
64 Figure A.2 ā€“ Example steps of operation for work in confined spaces
65 Annex B (informative) Voltage drops in the welding circuit
Figure B.1 ā€“ Example of MIG/MAG equipment
66 Table B.1 ā€“ Voltage drop in copper and aluminium welding cables at normal and elevated temperatures
67 Bibliography

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BS EN IEC 60974-9:2018 - TC
$217.84