e-PSM 118: Hazardous Area Classification

Duration: 2 DAYS, 9AM-4PM
Accreditation: 14 PDHs

Course Description
In this course, the attendees will learn how to assess and determine hazardous (electrical) area classification based on the characteristics of flammable materials, and types of equipment. Hazardous conditions can exist during normal plant operations as a result of the continuous or intermittent release of flammable materials into the atmosphere. Releases can occur due to leaks at valves and pipe flanges, from routine maintenance where a seal is being replaced, or where a process results in the regular venting of gases. Hazardous area classification is used to identify potentially hazardous zones and ignition sources in the workplace, and identify the equipment needed to prevent fires and explosions. The attendees will learn about the various classification systems for hazardous areas, including flammable gases, dusts, mists and vapors.

Course Benefits
• Learn about the different systems to classify hazardous areas
• Learn about the area classification assessment for flammable gases, mists, dusts and vapors
• Learn about the engineering best practices in hazardous area classification
• Learn about the limitations of hazardous area classification


Who Should Attend
• Fire Safety Managers
• Workplace Safety and Health Professionals
• Facility Managers
• Workplace Managers
• or anyone who manages hazardous area classification.

Course Content and Agenda
Day 1
• Explosion Basic Requirement
• Flammable Substance Classification
• Ignition
• Oxidizer
• Design Regulations for Explosion Proof Electrical Equipment
• Industry Codes and Standards
• Approval Agencies
• Overview of Hazardous Area Classification (HAC)
• HAC Definition and Division System
• Zone System
• Gas Zone
• Dust Zone
• Electrical Equipment Group
• Protection Techniques and Methods
• Class and Zone Comparison
• Reading Marking Equipment
• Equipment Protection Level (EPL)
• ATEX Directive
• Marking
• Gas Marking
• Dust Marking
• Zone Marking


Day 2
• Risk Assessment Methodology Development
• Area Classification Assessment
• Area Classification Assessment for Zone System
• Source of Release
• Ventilation
• Plant and Area Design
• Ignition Sources Control
• Classification of Areas Containing Liquids, Vapors and Gases
• Classification of Areas Containing Dust
• Combustible Dust
• Identify Zones of Risk for Combustible Dust
• Engineering Best Practices
• Material Properties
• Dust Layer Hazard
• Gas and Oil-Fired Systems
• Audit and Review
• HAC Limitations