Hazardous Area Classification and Design

This Hazardous Area Classification and Design training is an advanced course, intended for technicians, engineers and senior engineers involved with the design of electrical installations in hazardous areas and in area classification.

After this course you will be able to competently determine where hazardous zones exist within a facility, outline materials properties, and identify practical solutions to classification problems considering impacts on the installation, overall risk management, and costs/benefits of mitigation measures to reduce the classified areas.

Engineers will be able to select hazardous area compliant equipment and complete hazardous area installation design, including intrinsically safe circuit evaluation and design, maximum dissipating power calculations, electrical protection, dossier development, cable and entry system selection, understanding the operating theory and practical requirements for each protection technique, equipment certification, nomenclature, inspection, auditing and legislative requirements to name a few.

This course is aligned with the latest Classification and Design Standards AS/NZS IEC 60079.10.1:2022, AS/NZS IEC 60079.10.1:2022 SUP 1:2022 and AS/NZS 60079.14:2022.

The Hazardous Area Classification and Design course covers the following topics:

• Legal requirements and Australian Standards
• Properties of explosive gases and vapours
• Properties of combustible dusts
• Hazardous area classification procedures and techniques, including the gathering and analysis of data relevant to the explosive hazard
• Determination of the extent of the risk
• Documentation of the hazardous areas zones
• Equipment selection
• General installation requirements
• Electrical protection
• Record keeping – the Verification Dossier
• Explosion-protection techniques

The training has application in the following sectors:

• Aviation
• Fuel storage and dispensing
• Marine material handling and storage
• Mining / Coal handling
• Petrochemical / Oil & Gas
• Food processing and storage
• Materials handling
• Wastewater
• Power generation
• Process plants
• Hazardous area industries

Units

Classification Unit Outcomes

• UEEHA0017 Classify areas where a combustible dust hazard may rise
• UEEHA0018 Classify areas where flammable gas or vapour may arise

Design Unit Outcomes

• UEEHA0004 Enter a classified hazardous area to undertake work related to electrical equipment
• UEEHA0022 Determine the explosion-protection requirements to meet a specified classified hazardous area
• UEEHA0021 Design explosion-protected electrical systems and installations
• UEEHA0029 Plan electrical installations for hazardous areas

Prerequisites

To attain all units of competency the following pre-requisite evidence is required, students are required to present the below evidence to complete the units of competency listed. Students will only be issued a SOA for the units of competency that meet the requirements:

Classification unit requirements

• Hold a Bachelor’s Degree in a relevant engineering or scientific discipline

Design unit requirements

• Have been deemed competent to install, maintain, inspect and/or engineer electrotechnology equipment and installations at an AQF level 3 or NZQF 4 qualification level or higher – Electrotechnology Electrician or Electrical Fitting or current Electrical Licencing.
• Have been deemed competent to arrange circuits, control and protection and select wiring systems and cables for non-hazardous electrical installations at an AQF level 4 or NZQF 5 qualification level or higher – Certificate IV in Hazardous Areas or Certificate IV in Electrical Equipment and Systems.
• Have been deemed competent to design general electrical and control systems and installations at an AQF level 6 or NZQF 7 qualification level or higher – Advanced Diploma of Engineering.