NBN EN 60974-8 : 2009

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Environmental conditions
5 Test conditions
   5.1 Type tests
   5.2 Routine tests
        5.2.1 External gas console
        5.2.2 Internal gas console
6 Components
7 Protection against electric shock
   7.1 Insulation
   7.2 Protection against electric shock in normal service
        (direct contact)
        7.2.1 Protection provided by the enclosure
        7.2.2 Capacitors
   7.3 Protection against electric shock in case of a fault
        condition (indirect contact)
8 Thermal requirements
   8.1 Heating test
   8.2 Maximum temperature
9 Connections for plasma cutting torches
10 Mechanical requirements
   10.1 Protection against fire or explosion
   10.2 Gas line purging
   10.3 Enclosure
        10.3.1 Design requirements
        10.3.2 Enclosure purging
        10.3.3 Intrinsically safe design
        10.3.4 Safe design of gas console
        10.3.5 Open structure
   10.4 External gas console
   10.5 Internal gas console
11 Gas lines
   11.1 Gas hoses and tubing
   11.2 Gas fittings
   11.3 Leak test
12 Control circuits
13 Instructions and markings
   13.1 Instructions
   13.2 Marking
14 Rating plate
   14.1 Internal gas console
   14.2 Warning
Annex A (informative) Mechanized plasma system diagram
Annex B (informative) Electrical apparatus for gas consoles
        (potential explosion)
Annex C (informative) Example of a rating plate
Annex ZA (normative) Normative references to international
         publications with their corresponding European
         publications
Bibliography
Figures
Table