CompEx Hazardous Areas

Compex 5 day EX01-EX04 Competence Based Course

Duration:  5 days
Per Delegate:  £790.00

Practical Content


Theoretical Content


Delegates must supply evidence of relevant vocational qualifications i.e. Apprenticeship, SVQ3, SJIB. If you cannot supply these please contact our Customer Service Team who will assist you further.

Key Learning Outcomes

  • Identify the correct national regulations, directives and IEC standards which are applicable to hazardous locations.
  • Identify the correct criteria and descriptors used to classify a hazardous location.
  • Recognise the correct characteristics of common hazardous gases and vapours discussed during the course.
  • Demonstrate an underpinning knowledge of how certified Ex electrical equipment including Ex ‘d’, ‘e’, ‘n’, ‘p’, ‘m’, ‘o’, ‘q’, ‘s’, Intrinsic Safety (IS) maintains its protection concept and how it is to be selected, installed, inspected and maintained.
  • Identify the correct test value readings for IS and non-IS installations and equipment.

Course Content

  • General principles, ignition properties and apparatus protection
  • Standards, Certification and marking
  • Flameproof Ex’d’ protection
  • Increased safety Ex’e’
  • Type Ex’n’ protection
  • Pressurisation Ex’px’, Ex’py’ and Ex’pz’ protection
  • Intrinsic safety Ex’ia’, ‘ib’ and ‘ic’ protection
  • Other methods of protection, Ex’o’, Ex’q’ and Ex’m’
  • Combined (hybrid) methods of protection
  • Wiring systems, enclosure entries, cable glanding and earthing
  • Inspection and maintenance to BS/IEC 60079-17
  • Sources of ignition
  • Introduction to competence validation testing
  • Permit to work system and safe isolation


Delegates will undertake a practical assessment and an online multiple-choice examination paper to demonstrate they have achieved the key learning outcomes detailed above.

PPE Requirements

Safety footwear, coveralls, safety glasses and gloves.

Further Information

CompEx Recognised Practitioners Programme (RPP) course must be completed prior to 5-year expiry date otherwise 5-day CompEx Course to be retaken.

Target Audience
Target Audience

This qualification is suitable for practicing electrical or instrument technicians who are involved in installing, inspecting and maintaining certified Ex electrical equipment in locations where gases and vapours can potentially create a hazardous area.


CompEx National Certificate of Core Competence – valid for 5-years.

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