SN EN 60974-3 : 2003

FOREWORD
1 Scope
2 Normative references
3 Terms and definitions
4 Environmental conditions
5 Test conditions
   5.1 Type tests
   5.2 Routine tests
6 Protection against electric shock
   6.1 Clearances
   6.2 Creepage distances
   6.3 Isolation of the output and arc striking and arc
       stabilizing voltage
   6.4 Dielectric strength
7 Thermal requirements
8 Abnormal operation
9 Thermal protection
10 Connection to the input supply
11 Output
   11.1 Rated peak voltage
   11.2 Impulse current
   11.3 Mean energy
   11.4 Output circuit capacitance discharging
12 Control circuits
13 Mechanical requirements
14 Rating plate
15 Instructions and markings
Annex A (informative) examples of coupling systems for arc
        striking and stabilizing devices
Annex B (informative) Example of a rating plate
Annex ZA (normative) Normative references to international
         publications with their corresponding European
         publications

Describes safety requirements for arc striking and arc stabilizing devices used in arc welding and allied processes.