EPL Electrical Apparatus Installations in Hazardous Area

Electrical equipment for gas (Excerpt Table 2 IEC/EN 60079-14 standard)

Surface-Liquid Dust Gas

EPL TYPE OF PROTECTION CODE ACCORDING TO
Ga Encapsulation ma IEC 60079-18
Intrinsically safe ia IEC 60079-11
Gb Encapsulation m (or) mb IEC 60079-18
Intrinsically safe ib IEC 60079-11
Flameproof enclosures d IEC 60079-1
Increased safety e IEC 60079-7
Gc Encapsulation me IEC 60079-18
Intrinsically safe ic IEC 60079-11
Non-sparking n(or) nA IEC 60079-15
Restricted breathing nR IEC 60079-15
Energy limitation nL IEC 60079-15
Sparking equipment nC IEC 60079-15

Surface-Dusts

EPL TYPE OF PROTECTION CODE ACCORDING TO
Da Encapsulation ma IEC 60079-18
Intrinsically safe ia IEC 60079-11
Protection by enclosure ta IEC 60079-31
Db Encapsulation mb IEC 60079-18
Intrinsically safe ib IEC 60079-11
Protection by enclosure tb IEC 60079-31
Dc Encapsulation me IEC 60079-18
Intrinsically safe ic IEC 60079-11
Protection by enclosure tc IEC 60079-31

For more information refer to the following standards

  • IEC/EN 60079-14 Explosive atmospheres. Part 14: Electrical installations design, selection and erection
  • IEC/EN 60079-17 Explosive atmospheres. Part 17: Electrical installations inspection and maintenance