What is CompEx?

CompEx (meaning Competency in Ex atmospheres) is a global certification scheme for electrical and mechanical crafts persons and designers working in potentially explosive atmospheres. The scheme is operated by JTLimited, UK and is accredited by UKAS to ISO/IEC 17024. The scheme was created by EEMUA (Engineering Equipment and Materials Users’ Association) to satisfy the general competency requirements of BS EN 60079 (IEC 60079), parts 10, 14 and 17. The requirements are currently explicitly detailed in IEC 60079 Part 14 Annex A, detailing knowledge/skills and competency requirements for responsible persons, operatives and designers.

The scheme is broken down to four units covering different actions and hazardous area concepts.

Ex01 The preparation and installation of Ex ‘d’, ‘n’, ‘e’ and ‘p’ electrical equipment in explosive atmospheres

Ex02 The inspection and maintenance of Ex ‘d’, ‘n’, ‘e’ and ‘p’ electrical equipment in explosive atmospheres

Ex03 The preparation and installation of Ex ‘i’ equipment and systems in explosive atmospheres

Ex04 The inspection and maintenance of Ex ‘i’ equipment and systems in explosive atmospheres

CompEx Installation and Inspection Course Content

  1. General principles, Sources of Ignition, Ignition Properties
  2. Area Classification
  3. Equipment Group
  4. Ingress Protection
  5. Standards, Certification, Marking
  6. Flameproof Enclosure Construction
  7. Cable Entry, Gland Entry, Wiring System
  8. Earthing and Bonding
  9. Equipment Protection Type
  10. Inspection and Maintenance as per BS EN 60079-17
  11. Mechanical Protection
  12. Induction to competence validation testing 
  13. Permit to work system and safe isolation where is necessary
  14. Practical exams 