Hazardous Area Classification (HAC) and ATEX Training

This training aims to introduce participants to the fundamental principles and approaches related to the formation of explosive atmospheres and the classification of hazardous areas. Basic concepts related to hazardous area classification and equipment selection are covered. The training content has been prepared considering the ATEX approach, TS EN 60079 standards, and industry best practices.

Day 1 – Explosion Awareness and Learning from Accidents

• Training opening and objectives: Scope, expectations, and general framework
• Major accidents and lessons learned
• Formation of explosive atmospheres
• Types of explosions: VCE, BLEVE, dust explosions, etc.
• ATEX and regulatory approach
• Hazardous areas: Definitions of Zone 0-1-2 and Zone 20-21-22

Day 2 – HAC Methodology and Classification

• Identification of release sources: Continuous, primary, and secondary sources
• Effect of ventilation: Impact of natural and mechanical ventilation on classification
• Zone determination logic: Systematic classification approach
• Hazardous area distances: Safety distance calculation and dispersion assessment

Day 3 – Equipment Selection and Application

• Equipment selection approach
• ATEX equipment requirements and directives
• Certification and marking
• Typical facility applications and risk reduction approach
• Practical workshop:

o Zone determination based on an example process
o Approach to equipment selection
o Review of results