KL Training Academy
Ex 02 & 04 | Gas and vapours
Inspection and
maintenance of Ex electrical &
instrumentation (Ex i) equipment
Why Ex 02 & 04 Matters
In the CompEx Certification scheme, Ex 02 and Ex 04 are key to maintaining the safety of hazardous area installations.
Ex 02 focuses on inspection to identify defects and non-compliance, while Ex 04 covers maintenance and corrective actions to keep systems operating safely. Together, they ensure continued compliance with IEC 60079-17 and long-term reliability.
Course Overview
Course Overview
This course equips electrical and instrumentation personnel with the knowledge and practical skills required to inspect and maintain Ex equipment in hazardous areas (gas and vapours), including intrinsically safe (Ex i) systems, in line with industry standards.
What You'll Learn
Course Objectives
Upon successful completion, candidates will demonstrate:
Theoretical Understanding
- Understand explosion protection principles and hazardous area classification
- Interpret Ex equipment markings, certification, and IEC 60079 requirements
- Understand inspection types (visual, close, detailed) and their application
- Recognise defects and non-compliances in hazardous area installations
- Understand requirements for various protection concepts, including intrinsically safe (Ex i) systems
Practical Competence
- Carry out maintenance activities while preserving explosion protection integrity
- Perform visual, close, and detailed inspections of Ex equipment
- Identify defects and non-compliances in real installations
- Inspect and maintain Ex equipment, including intrinsically safe (Ex i) systems
- Apply safe working practices and complete inspection and maintenance documentation
who is this for
This Course is Suitable for
Designed for experienced professionals working with Ex equipment in hazardous environments
Electrical and instrumentation technicians and engineers
Inspection and maintenance personnel in hazardous areas
Experienced professionals seeking CompEx certification
Program Structure
Course Details
Duration
4 days
Format
Theory and Practical
Assessment
Theory Examination: MCQ — 60 questions — 1 hour 30 minutes
Practical Examination:
Ex02: Inspection and maintenance of Ex (non-IS) equipment: 1 hour 30 minutes
Ex04 : Inspection and maintenance of Ex (IS) equipment: 1 hour 15 minutes
CompEx Certified — Core Competence
Upon successful completion, you will receive the internationally recognized CompEx Certificate in Core Competence — valid for 5 years and accepted across the global oil & gas, petrochemical, pharmaceutical, and mining industries.
Your certification is registered on the CompEx database, verifiable worldwide, and demonstrates your ability to install, inspect, and maintain intrinsically safe equipment in hazardous gas atmospheres.
Ready to Get Certified?
Take the next step in your hazardous area competency journey with CompEx Ex 02 & 04 certification from KL Training Academy.