Industry Training

CompEx Electrical Installation & Inspection (Ex01-Ex04)

Age Group Cost
TRAINING Contact us*
Age Group Cost
TRAINING Contact us*


This five-day course provides electrical and instrument technicians with the necessary competence to work in potentially explosive environments.

People attending this course often work in potentially explosive environments such as:

  • On and off-shore oil and gas installations
  • Petrochemical plants
  • Distilleries
  • Petrol forecourt environments
  • Mills and other dust generating environments


To apply for this training course or for more information please contact our Training Team

Call: 0345 52 12345


Entry Requirements

Students should be able to make off steel wire armoured cable glands when attending modules EX01/2/3/4/5/6 as well as being able to carry out electrical testing for Continuity, Insulation Resistance and Polarity. Candidates wishing to attend CompEx Ex01-Ex04 should have a working background as electrician, electronic technician or instrument technician. An electrical installation background is helpful but not essential.

Course Structure

Amongst other things the course covers:

  • Review of explosion principles, gas properties and hazards (EXF concepts)
  • Standards, certification, and marking per IEC 60079-series of standards
  • Protection Concepts and installation techniques for Ex d, Ex e, Ex n, Ex i, Ex o, Ex m, Ex q, and Ex p equipment
  • Combined (Hybrid) types of protection
  • Wiring systems, enclosure entries, and cable gland selection & installation to IEC 60079-14
  • Inspection and maintenance of equipment to IEC 60079-14 and 60079-17 standards
  • Sources of ignition
  • Hands-on assessment of installation and inspection -Ex d, Ex e

Assessment & Feedback


Five-day course, Monday to Friday from 9am-5pm, delivered in a specially designed training suite.


CompEx assessments consist of practical and theoretical elements. Practical competency will be assessed on a unit based assessment/exam. Theoretical competency will be assessed via an online multiple choice exam.

Course Cost

Training, Contact us

The course fee covers the following:

  • EEMUA Practitioners Hand Book (Sixth Edition)
  • CompEx Toolbox Guide
  • Registration, Examination and Assessment Fees
  • Course materials
  • Pad and pen
  • Certification upon successful completion
  • Lunch & refreshments

What Next...


Qualified electricians will receive a JTL CompEx Certificate of Core Competency upon satisfactory achievement of the unit assessment.

Other personnel will receive a JTL CompEx Certificate of Core Competency, but NOT as an electrical craftsperson.

The CompEx Certificate will be valid for five years.