Ex maintenance

Extension course for electricians and automators who will maintain Ex installations. The course requires basic Ex-knowledge.
43 24-26. okt. 2023 TØNSBERGNorwegian
44 31. okt.-02. nov. 2023 TrondheimNorwegian
47 21-23. nov. 2023 KOKSTADNorwegian
48 28-30. nov. 2023 KOKSTADNorwegian
51 19-21. des. 2023 STAVANGERNorwegian
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Technical information

Course name : Ex maintenance
Course manual : Yes
Type : Classroom
Course duration: 3 days
Provider : Trainor


This is a supplementary course for those doing maintenance work on Ex installations. The course contains both theory and practical exercises. It includes an introduction to what the authorities permit the user or owner of an electrical system to carry out themselves and what must be conducted by a qualified workshop. Having completed the course, participants will have the necessary knowledge to conduct maintenance work in a safe and professional manner.

Target group

Electricians and automation technicians. Participants must have some basic Ex knowledge.

Subjects covered in the course

  • IEC 60079-17
  • Excerpts from IEC 60079-19
  • Corrosion
  • Fighting corrosion
  • Maintenance
  • Overhaul
  • Repairs
  • Flameproof joints
  • Damaged flameproof joints
  • Overhauling and repairing Ex motors
  • Testing motor protection
  • Repairing Exi equipment
  • Excerpts from EXR-01
  • Exercises


According to guidelines from Offshore Norway (059) and the NFEA Ex-KOMP:2021 guidelines for training, the competence should be updated at least every five years.

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