AS 1674.2-2007

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.

This Standard sets out safety requirements for arc welding and allied processes, to reduce the possibility of electric shock and minimize associated hazards. It includes requirements for cable connections for alternating and direct current power sources, as well as requirements for hazard-reducing devices and other ancillary equipment. It also describes practices and safeguards that should be adopted by welders and provides examples of situations that present an increased risk of electric shock.For the purposes of this Standard the term ‘direct current’ (d.c.) is considered to be a direct current with a sinusoidal ripple content of not more than 10% r.m.s. Any d.c. power source with a sinusoidal ripple content of more than 10% shall be considered as an a.c. power source (eg. a single phase unfiltered full wave rectified d.c. power source has a nominal sinusoidal ripple content of 48%).This Standard does not cover electrical safety requirements when welding is carried out underwater.NOTES:1 Other aspects of welding safety are covered in other Standards.2 Typical electrical hazards are described in Appendix A.3 Some fatal electrical accidents are reported in Appendix B.

Originated in part as AS CC5-1947 and MP 17-1965.
AS CC5-1965 and MP 17-1965 revised, amalgamated and redesignated as AS 2745-1984.
AS 2745-1984 revised and redesignated as AS 1674.2-1990.
Third edition 2007.
Reissued incorporating Amendment No. 1 (February 2011).