Issue link: https://onenorgren.uberflip.com/i/552086
6 For further information www.norgren.com/us APPLICATION PRINCIPLE OF PROTECTION TYPE OF PROTECTION MARKING MAY BE USED IN ZONE IEC CENELEC all applications – general requirements – – 60079-0 EN 60079-0 control stations, motors, fuses, switchgear, power electronics a propagation of an explosion inside to the outside is excluded flameproof enclosure Ex d 1 or 2 60079-1 EN 60079-1 installation materials, motors, luminaries avoidance of arcs, sparks and excessive temperature increased safety Ex e 1 or 2 60079-7 EN 60079-7 measurement and control, automation technology, sensors, actuators limitation of energy as well as arcs and temperature intrinsic safety Ex ia 0, 1 or 2 60079-11 EN 60079-11 Ex ib 1 or 2 60079-11 EN 60079-11 switch- and control cupboards, analyze- apparatus, computers ex-atmosphere keep at a distance from the ignition source pressurization Ex p 1 or 2 60079-2 EN 60079-2 coils of motors or relays, solenoid valves ex-atmosphere keep at a distance from the ignition encapsulation Ex ma 1 or 2 60079-18 EN 60079-18 Ex mb transformers, relays, control stations, magnetic contactors ex-atmosphere keep at a distance from the ignition source oil immersion Ex o 1 or 2 60079-6 EN 60079-6 capacitors, transformers an propagation of an ignition inside to the outside is excluded powder filling Ex q 1 or 2 60079-5 EN 60079-5 only for zone 2 avoidance of arcs 'non sparking' Ex n 2 60079-15 EN 60079-15 CONDITIONS IN HAZARDOUS AREAS FLAMMABLE SUBSTANCES TEMPORARY BEHAVIOUR OF FLAMMABLE SUBSTANCES IN HAZARDOUS PLACES SUBDIVISION OF HAZARDOUS PLACES REQUIRED MARKING FOR INSTALLATION CLASSIFICATION OF HAZARDOUS AREAS EQUIPMENT CATEGORY EQUIPMENT PROTECTION LEVEL (EPL) gases, vapours is present continuously or for long periods or frequently zone 0 II 1G Ga is likely to occur in normal operation occasionally zone 1 II 2G or 1G Gb or Ga is not likely to occur in normal operation but, if it does occur, will persist for a short period only zone 2 II 3G or 2G or 1G Gc or Gb or GA dusts is present continuously or for long periods or frequently zone 20 II 1D Da is likely to occur in normal operation occasionally zone 21 II 2D or 1D Db or Da is not likely to occur in normal operation but, if it does occur, will persist for a short period only zone 22 II 3D or 2D or 1D Dc or Db or Da Marking of solenoid valves in potentially explosive atmospheres 5 0044 x II 2G Ex d IIB T4 Gb TUV 06 ATEX 1234 U