SN EN 60974-7 : 2005

1 Scope
2 Normative references
3 Definitions
4 Environmental conditions
5 Classification
      5.1 Process
      5.2 Method of guidance
      5.3 Type of cooling
      5.4 Method of striking the main arc for plasma
             processes
6 Test conditions
      6.1 Type tests
      6.2 Routine tests
7 Protection against electric shock
      7.1 Voltage rating
      7.2 Insulation resistance
      7.3 Dielectric strength
      7.4 Protection against electric shock in normal
             service (direct contact)
             7.4.1 Additional requirements for plasma
                      cutting torches
8 Thermal rating
      8.1 Temperature rise
      8.2 Heating test
             8.2.1 Metal inert/active gas (MIG/MAG) and
                      self-shielded flux cored arc welding
                      torch
             8.2.2 Tungsten inert gas (TIG) and plasma
                      arc welding torch
             8.2.3 Plasma cutting torch
9 Pressure of the cooling liquid system
10 Resistance of hot objects
11 Impact resistance
12 Marking
13 Instructions for use
Annex A (informative) Additional terminology
Annex B (normative) Position of the welding torches for the
                    heating test
Annex C (informative) Cooled copper block
Annex D (informative) Copper block with a hole
Annex E (informative) Copper bars with a slot
Annex F (informative) Alphabetical summary of units
Annex ZA (normative) Normative references to international
                     publications with their corresponding
                     European publications
Table 1 - Voltage rating of torches
Table 2 - Test values for metal inert gas arc welding (MIG)
          of aluminium alloys
Table 3 - Test values for metal active gas arc welding (MAG)
          of mild steel
Table 4 - Test values for metal active gas arc welding (MAG)
          with flux-cored wire
Table 5 - Test values for self-shielded flux-cored arc
          welding of mild steel
Table 6 - Test values for tungsten inert gas arc welding (TIG)
Table 7 - Test values for plasma arc welding
Figure 1 - Device for testing the resistance to hot objects
Figure 2 - Device for the impact test

Gives the safety and construction requirements for torches for arc welding and allied processes. Does not apply to electrode holders for manual metal arc welding or torches for air-arc cutting/gouging.