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AS 1674.2-2007
[Current]Safety in welding and allied processes, Part 2: Electrical
Specifies safety requirements for arc welding and allied processes, to prevent electric shock and minimize associated hazards, describes practices and safeguards that should be adopted by welders (including requirements for cable connections for alternating and direct current power sources, and requirements for any ancillary equipment) and gives examples of ways that shocks have been received and actions that may be taken in the event of a welder receiving an electric shock.
Published: 16/04/2007
Pages: 36
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope
1.2 Referenced documents
1.3 Definitions
2 Risk assessment and personal safety
2.1 General
2.2 Classification of welding environment
2.3 Control measures
2.3.1 Category A environments
2.3.2 Category B environments
2.3.3 Category C environments
2.4 Particular hazards with plasma-arc processes
3 Equipment
3.1 Helmets, handshields, goggles, face masks and gloves
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 Hand-piece trigger switches
3.2.7.4 Indication of satisfactory operation of voltage-reducing devices
3.2.8 Ancillary devices
3.3 Ancillaries
3.3.1 Electrode holders for MMAW
3.3.2 Plasma torches
3.3.3 Wire feeders
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
Appendix A
A1 Scope
A2 Courses of instruction
A3 General
A4 Power sources
A4.1 General
A4.2 Open‑circuit voltage
A4.3 Plasma welding and cutting
A5 Secondary circuits
A5.1 General
A5.2 The magnitude of current flowing through a body
A5.3 The path of current through a body
A5.4 The duration of shock
A5.5 The type of voltage supply
A5.6 The reaction to shock
A6 Stray current
A7 Electromagnetic fields and pacemakers
A7.1 General
A7.2 Minimizing exposure
A7.3 Welders with pacemakers
Appendix B
B1 Introduction
B2 Boiler welding
B3 Working on board a ship
B4 Welding outdoors
B5 Pulling a cable
B6 Fatal electrical accident involving mains voltage
Amendment control sheet
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]
Approval and test specification — General requirements for electrical equipment
Content history
[Current]
[Superseded]
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AS 1674.2-2007 REC:2018
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