CompEx Ex01 to Ex04

Course Aim

To deliver competence based training and assessment in the selection, use, maintenance, and inspection of electrical apparatus in potentially explosive atmospheres in accordance with the requirements of BS EN 60079 series relevant standards.

On completion of the assessments they are sent to the Awarding Body for marking, and if successful the candidates shall be issued with a certificate of core competence by JTL and EMMUA.


Course Syllabus

  • Area classification.
  • Gas groups.
  • Temperature classification.
  • I.P. ratings.
  • Selection of equipment.
  • Ignition sources.
  • Legislation.
  • Directives and standards.
  • Earthing and bonding.
  • Ex’i’, Ex’d’, Ex’e’, Ex’p’, Ex’m’, Ex’n’, Ex’o’ and Ex’q’.
  • Wiring systems and glanding.
  • Installation, maintenance, inspection and testing.
  • Feedback and Review.



CompEx is the national training and assessment scheme for electro technical crafts personnel who work in potentially explosive atmospheres, such as on-and off-shore Oil & Gas Pharmaceuticals, Energy, Chemical industries etc…

CompEx is a national joint training initiative developed and implemented by the Engineering Equipment and Material Users Association (EEMUA) and JTL and is supported by the Health and Safety Executive (HSE).

JTL who is the National training agent for the Electrical contracting industry has been appointed to develop, operate and manage the training provision across the UK and has licensed and accredited a number of centres to deliver the training and assessment.


Delegates for the course should be competent electrical and/or instrument craft personnel.  You are required to bring with you Photo Identification and suitable evidence that you are fully qualified in electrical or instruments or both.  This could be e.g. NVQ Level 3 certification, apprenticeship indentures or an ECS JIB Gold card.
Course Duration:
The course is 5 days in duration.
Optimum Number:
A maximum of 8 delegates per course.
Course Language:
The course is delivered in English, therefore candidates must have good standards of both written and verbal English.  Courses can be delivered in other languages, however this would need to be discussed prior to acceptance on the course.  It is the responsibility of the person making the booking to make Roxby aware of this requirement.
Training Support:
A Roxby Presentation will be delivered using supporting course hand-outs.  The EEMUA Publication 186 A Practicioners Handbook will be available in centre for the duration of the course.  Also EEMUA Publication 214 Toolbox Guide will be issued to all candidates.  Theory training is followed by practical training and assessments.




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