Hazardous Area Classification Course

Description

The classification of areas where an explosive atmosphere might arise is required to permit the proper selection and installation of equipment for use in such hazardous areas. Explosive atmospheres result from the presence of flammable gases, vapours and dusts. The aim of this 3-day course is to develop the competencies required to perform a Hazardous Area Classification based on the requirements of AS/ NZS 60079.10.1:2022 and AS/ NZS 60079.10.2:2016.

The course will:

• Provide an introduction to the relevant gas or dust combustion, vapour/liquid equilibrium, fluid mechanics, and dispersion analysis calculations.
• Provide an overview of the national and international codes and recommended practices for the classification of Hazardous Areas.
• Teach and practice a number of different techniques for establishing the degree and extent of the classified areas.
• Enable assessment of the hazardous area required for releases outside the scope of prescriptive examples.
• Provide an overview of the different design bases for the types of electrical equipment protection certifiable for use within specific hazardous areas.
• Provide guidelines on documenting the HAC assessment.

Course Content

• Legislative requirements
• Codes, Standards, and Recommended Practices
• Basic combustion concepts and terminology
• Material flammability & property estimation
• Categorisation of material based on flammability
• Release grading and HAC Zone definition
• Methods of Area Classification
  • Standard examples – specific and generic
  • Point-Source Releases and dispersion
• Airflow for ventilation and dispersion
• Electrical equipment designation
• Documentation Requirements