Standard
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AS 1674.2:2025
[Current]AS 1674.2:2025 specifies safety requirements and practices for welders to prevent electric shock and minimize hazards during arc welding and associated processes
Published: 30/05/2025
Pages: 44
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope
1.2 Normative references
1.3 Terms and definitions
1.4 Direct current and alternating current
2 Risk assessment and personal safety
2.1 General
2.2 Classification of welding environment
2.3 Control measures
2.3.1 General
2.3.2 Category A environments
2.3.3 Category B environments
2.3.4 Category C environments
2.3.5 Welding safety observer
2.4 Particular hazards with plasma-arc processes
3 Equipment
3.1 Personal protective equipment
3.2 Power sources
3.2.1 General
3.2.2 Degree of protection
3.2.3 Terminals
3.2.4 Internal insulation
3.2.5 Control
3.2.6 Maximum open-circuit voltage
3.2.7 Hazard reducing devices
3.2.7.1 General
3.2.7.2 Voltage-reducing devices
3.2.7.3 In-line cut-out switches
3.2.7.4 Hand-piece trigger switches
3.2.7.5 Indication of satisfactory operation of voltage-reducing devices
3.2.8 Ancillary devices
3.2.8.1 General
3.2.8.2 High-frequency high voltage arc starting
3.3 Ancillaries
3.3.1 Electrode holders for MMAW
3.3.2 GMAW, FCAW and GTAW torches
3.3.3 Plasma torches
3.3.4 Wire feeders
3.3.5 Arc-starting equipment
4 Electrical connections
4.1 Connection to electricity supply
4.2 Welding circuit connections
4.2.1 General
4.2.2 Welding leads
4.2.3 Voltage drop
4.2.4 Electrode leads for MMAW
4.2.5 Permanently installed welding circuit wiring
4.2.6 Work lead and work conductor
4.2.7 Welding circuit connections
4.2.8 Confined spaces
4.3 Earthing
4.4 Connecting multiple power sources to a common workpiece
4.4.1 General
4.4.2 Installation of single-phase power sources to two-wire a.c. supply circuits
4.4.3 D.C. welding circuits
4.4.4 Installations on three-phase supply circuits
5 Inspection and maintenance
5.1 Power source
5.1.1 Routine inspection and testing
5.1.2 Insulation resistance
5.1.3 Earthing
5.1.4 Repairs
5.2 Accessories
5.3 Daily start-up checklist
Appendix A
A.1 Scope
A.2 Courses of instruction
A.3 General
A.4 Power sources
A.4.1 General
A.4.2 Open-circuit voltage
A.4.3 Plasma welding and cutting
A.5 Secondary circuits
A.5.1 General
A.5.2 Magnitude of current flowing through a body
A.5.3 Path of current through a body
A.5.4 Duration of shock
A.5.5 Type of voltage supply
A.5.6 Reaction to shock
A.6 Stray current
A.7 Electromagnetic fields and implanted medical devices
A.7.1 General
A.7.2 Minimizing exposure
A.7.3 Welders with pacemakers
A.8 Reporting of electric shock or electrocution incidents
A.9 Rope access welding
A.10 Welding from an elevated work platform or scaffold
Appendix B
B.1 Introduction
B.2 Boiler welding
B.3 Working on board a ship
B.4 Welding outdoors
B.4.1 Welding while raining
B.4.2 Welding after rain
B.5 Pulling a cable
B.6 Fatal electrical accident involving mains voltage
B.7 Welding in a hot and humid environment
Bibliography
Cited references in this standard
[Current]
Arc welding equipment, Part 1: Welding power sources (IEC 60974-1:2017+AMD1:2019 CSV (ED.5.1) MOD)
[Current]
Arc welding equipment, Part 4: Periodic inspection and testing (IEC 60974-4:2016 (ED. 3.0) MOD)
Content history
[Pending Revision]
[Superseded]
AS 1674.2-2007 REC:2018
DR AS 1674.2:2024
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