Engineering Solutions

Expert hazardous area engineering to reduce risk, ensure compliance, and support safe operations.

Inlex delivers specialist engineering solutions for facilities operating in hazardous and explosive atmospheres. With deep EEHA expertise and proven experience across high-risk industries, we help our clients manage compliance, mitigate ignition risk, and maintain safe, reliable operations – from concept and design through to ongoing asset management.

Our engineers provide practical, standards-aligned advice and documentation, allowing you to focus on running your facility with confidence.

⚠️ Hazardous Area Classification (HAC)

Hazardous Area Classification (HAC) is critical for facilities where flammable gases, vapours, or combustible dusts may be present. In accordance with AS/NZS (IEC) 60079-10.1 and 60079-10.2, HAC defines zones based on the likelihood and duration of an explosive atmosphere occurring.

The purpose of HAC is to identify hazardous zones and ensure the correct selection, installation, and protection level (EPL) of electrical equipment to prevent ignition.

Inlex engineers undertake detailed HAC studies, producing clear classification reports and drawings that support safe design, compliant equipment selection, and ongoing operational integrity. HAC should be established during design and reviewed throughout the life of the plant, particularly following operational or equipment changes supporting clients at every stage.

🦺 Hazardous Area Management Plans (HAMP)

A robust Hazardous Area Management Plan (HAMP) is essential for maintaining safety and compliance in explosive atmospheres.

Inlex develops tailored HAMPs that provide a structured framework for managing hazardous areas across the full asset lifecycle. Our plans integrate hazardous area classification, equipment management, inspection and maintenance requirements, competency, documentation control, and change management.

By aligning with AS/NZS (IEC) 60079 standards and IECEx principles, our HAMPs help ensure hazards are identified, risks are controlled, and responsibilities are clearly defined – protecting personnel, preserving assets, and supporting long-term operational continuity.

📄 Conformity Assessment Documents (CADs)

Selecting compliant equipment for hazardous areas can be complex, particularly when certified equipment is unavailable or equipment has been sourced internationally.

Where IECEx or ANZEx certified equipment is not available, AS/NZS (IEC) 60079-14 allows for the use of Conformity Assessment Documents (CADs) to demonstrate equivalent levels of safety. Inlex engineers prepare CADs to assess non-certified or foreign-certified equipment (including ATEX, UKCA, and NEC schemes) for suitability in Australian hazardous areas.

We provide clear, defensible assessments and practical recommendations to resolve compliance gaps – enabling safe, compliant use of equipment without unnecessary replacement or downtime.

👷‍♂️ Explosion Protection & Hazardous Area Design

Our engineering team provides expert design support for electrical systems in hazardous areas, ensuring explosion protection principles are embedded from the outset.

Our design services include:

Explosion protection design reviews
Equipment selection and Statements of Opinion (SoOs)
Intrinsically safe entity and simple apparatus calculations
Heat dissipation and temperature class assessments
Support for bespoke and non-standard solutions

We work collaboratively with clients, designers, and project teams to deliver solutions that are safe, cost-effective, and fully compliant with AS/NZS (IEC) 60079 requirements.