ATEX training

Lesson 1 • Sources and Origins of Flammable Substances

Examines industrial sources of flammable gases, vapours, mists, and dusts. Links substance origin to risk assessment priorities.

Lesson 2 • What Is an Explosive Atmosphere

Defines explosive atmospheres and the physical conditions required for ignition. Provides the conceptual baseline for all subsequent hazard analysis.

Lesson 3 • Consequences of Ignition Events

Analyses explosion, deflagration, and detonation outcomes and their destructive potential. Motivates the need for systematic prevention and protection measures.

Lesson 4 • Overview of the ATEX Regulatory Framework

Introduces the two-directive structure governing equipment and workplace requirements. Clarifies employer and manufacturer obligations at a foundational level.

Lesson 1 • Equipment Groups and Categories

Explains Group I and Group II equipment classifications and their category subdivisions. Enables correct equipment selection based on zone and substance type.

Lesson 2 • Harmonised Standards and Their Role

Explains how harmonised standards provide presumption of conformity with directive requirements. Students learn to navigate standard hierarchies for equipment and installation.

Lesson 3 • Workplace Directive Obligations

Covers employer duties for explosion risk assessment, documentation, and worker protection. Establishes the legal baseline for site-level compliance programmes.

Lesson 4 • Documentation and Record-Keeping

Covers technical files, explosion protection documents, and audit trails required by regulation. Proper documentation demonstrates compliance and supports incident investigation.

Lesson 1 • Release Sources and Grades

Defines continuous, primary, and secondary grades of release and their zone implications. Accurate release source identification is the foundation of correct zoning.

Lesson 2 • Principles of Zone Classification

Introduces the zone classification concept and its purpose in risk-based equipment selection. Establishes the logic linking atmosphere frequency to zone number.

Lesson 3 • Special Zoning Scenarios

Addresses complex situations including enclosed spaces, pits, trenches, and outdoor storage. Builds judgement for non-standard cases not covered by simple rules.

Lesson 4 • Producing Hazardous Area Drawings

Guides students through creating compliant zone drawings and area classification documents. These drawings are mandatory deliverables in the explosion protection document.

Lesson 5 • Ventilation and Its Effect on Zones

Analyses how ventilation type, availability, and effectiveness modify zone extent and type. Students apply ventilation factors to reduce zone severity where feasible.

Lesson 1 • Hot Work and Open Flame Management

Covers permit-to-work systems and isolation requirements for welding, cutting, and grinding. Proper hot work control prevents the most common ignition events on industrial sites.

Lesson 2 • Mechanical Ignition Sources

Addresses friction, impact, and compression heating as ignition mechanisms in rotating equipment. Students select materials and design features that minimise mechanical ignition risk.

Lesson 3 • Static Electricity Hazards and Control

Examines charge generation, accumulation, and discharge mechanisms in industrial processes. Students apply bonding, earthing, and antistatic measures to prevent ignition.

Lesson 4 • Ignition Source Assessment Process

Provides a structured methodology for systematically identifying and ranking ignition sources. The assessment output feeds directly into the explosion protection document.

Lesson 1 • Protection Concepts for Electrical Equipment

Surveys flameproof, intrinsically safe, increased safety, and other protection concepts. Each concept's operating principle determines its suitability for specific zones.

Lesson 2 • Protection Concepts for Non-Electrical Equipment

Covers constructional safety, control of ignition sources, and liquid immersion for non-electrical items. Non-electrical equipment is a frequently overlooked source of ignition risk.

Lesson 3 • Reading and Interpreting ATEX Markings

Decodes the full ATEX marking string including group, category, gas group, and temperature class. Correct marking interpretation prevents installation of unsuitable equipment.

Lesson 4 • Equipment Procurement and Approval Workflow

Establishes a site-level procurement process ensuring only compliant equipment enters hazardous areas. A robust approval workflow prevents non-compliant substitutions.

Lesson 5 • Matching Equipment to Zone Requirements

Applies a decision matrix linking zone number, substance group, and temperature class to permitted equipment categories. Students practise selection using realistic case data.

Lesson 1 • Initial Verification Before Commissioning

Defines the initial inspection scope required before energising equipment in a hazardous area. Initial verification confirms installation matches the certified design intent.

Lesson 2 • Installation Requirements for ATEX Equipment

Covers wiring methods, cable entry systems, and mechanical installation standards for hazardous areas. Correct installation preserves the protection concept certified by the manufacturer.

Lesson 3 • Maintenance Practices in Hazardous Areas

Covers safe maintenance procedures including isolation, de-energisation, and re-certification after repair. Maintenance activities are a leading cause of ignition events if poorly managed.

Lesson 4 • Periodic Inspection Grades and Intervals

Explains visual, close, and detailed inspection grades and how to set risk-based intervals. Appropriate intervals balance safety assurance against operational disruption.

Lesson 1 • Explosion Risk Assessment Methodology

Presents a step-by-step risk assessment process aligned with regulatory requirements. The methodology ensures no hazard pathway is overlooked during assessment.

Lesson 2 • Integrating Multiple Hazard Sources

Addresses sites with simultaneous gas, vapour, mist, and dust hazards requiring coordinated assessment. Students manage overlapping zones and combined risk scenarios.

Lesson 3 • Explosion Protection Document Structure

Details the mandatory content sections of the explosion protection document and their purpose. A complete document demonstrates regulatory compliance and guides safe operations.

Lesson 4 • Prevention and Protection Measure Hierarchy

Applies the hierarchy of controls to explosion risk, from elimination to mitigation. Students select and justify measures appropriate to each identified risk level.

Lesson 1 • Root Cause Analysis Techniques

Applies fault tree analysis, bow-tie, and why-why methods to explosion incident data. Students select and apply the most appropriate technique for a given scenario.

Lesson 2 • Emergency Planning for Explosion Scenarios

Covers the elements of an explosion-specific emergency response plan including evacuation and rescue. Effective planning reduces casualties and limits secondary damage.

Lesson 3 • Immediate Response Actions

Defines the sequence of actions required in the first minutes following an explosion event. Correct immediate response prevents escalation and protects responders.

Lesson 4 • Incident Investigation Principles

Introduces root cause analysis frameworks applicable to explosion and near-miss events. Systematic investigation reveals systemic failures beyond immediate physical causes.