Module 1 -  Ex Theory on Hazardous Area Equipment Repair, Overhaul and Reclamation

To complete the course in hazardous area equipment repair, overhaul and reclamation, it is recommended that both modules 1 and 2 are taken.


Module 1 is a two day course that focuses on the theory behind Ex equipment. The Module 2 two day course gives hands-on practical experience. After completing the assessments on module 2 the course is completed.


A refresher is required after 3 years in order to keep up to date with current standards and legislation. 

Course content includes: 

  • Ignition sources in flammable gases, vapours and dusts

  • Principles of Ex protection for gas and dust

  • Temperature classification and groups of apparatus

  • Certification, standards and marking

  • Requirements and procedures of ATEX, DSEAR and BS EN IEC 60079-19

  • Principles and repair methods for

  • Ex d (Flameproof)​

  • Ex e (Increased Safety)

  • Ex nA (Incendive sparking)

  • Ex tD (Dust)

  • Other methods such as Ex p, Ex o, Ex i, Ex m, Ex q, Ex s, etc.

  • Mechanical protection concepts:

  • Ex c (Construction safety)

  • Ex k (Liquid immersion)

  • Installation, reinstallation, and testing

  • Reports and records for ensuring the quality and management of repairs

  • Legal requirements and safe working practices

  • Assessment

The course programmes rely upon the full involvement of the delegates in discussions and exercises.


All delegates are assessed throughout the course, with multiple choice questions, and an AEMT Certificate of Assessment issued to all successful delegates.

Course, Length, and Times

The whole course for module's one and two are four days in total starting each day at 8.30am to 4.30pm. Both courses span just two days individually.

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