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A Brief Guide on EEHA – Electrical Equipment for Hazardous Areas

In industries where the environment can present hazardous conditions, such as mining, oil and gas, and chemical manufacturing, safety is paramount. This is where Electrical Equipment for Hazardous Areas (EEHA) comes into play. Understanding EEHA is essential for professionals working in these sectors to ensure that all operations involving electrical equipment are conducted safely. This blog provides a comprehensive introduction to EEHA, highlighting its importance, the standards that govern it, and why training in this area is crucial for maintaining workplace safety.

Understanding Hazardous Areas

A hazardous area is defined as any location where the atmosphere contains flammable gases, vapours, mist, or dust in sufficient quantities to cause a fire or explosion. The nature of these substances means that standard electrical equipment could ignite the atmosphere under normal operating conditions. As such, special precautions must be taken to use equipment that is designed and certified to be safe in these environments.

EEHA Standards and Compliance

EEHA compliance revolves around several standards that outline how electrical equipment should be handled in hazardous areas. These standards ensure that all equipment is suitable for the specific class of hazardous area in which it is used. In Australia, the key standards include:

  • AS/NZS 60079 Series: This series covers the specific requirements for construction, testing, and marking of electrical equipment intended for use in explosive atmospheres.
  • AS/NZS 3000 (Wiring Rules): This includes specific sections that deal with the installation and maintenance of electrical systems in hazardous areas.

These standards are not static; they evolve to reflect new safety research, technological advancements, and best practices. Compliance with these standards is not just a legal requirement; it is crucial for ensuring the safety and efficiency of operations in hazardous environments.

Key Components of EEHA

EEHA encompasses a range of components and practices designed to minimise the risk of ignition in hazardous areas. These include:

  1. Intrinsically Safe Equipment: Devices designed to limit the electrical and thermal energy available for ignition.
  2. Explosion-Proof Enclosures: These enclosures can withstand an explosion within them and prevent the ignition of the external atmosphere.
  3. Pressurisation and Purging Systems: Used to prevent the formation of an explosive atmosphere within an enclosure by using a protective gas.
  4. Cable Glands and Sealing Fittings: Special fittings that prevent the passage of gases, vapours, or flames through electrical conduits.
  5. Regular Inspections and Maintenance: Ensuring that all equipment is maintained according to the manufacturer’s specifications and standards requirements.

The Importance of EEHA Training

Given the complexities and strict standards associated with EEHA, professional training is crucial. Training ensures that personnel are aware of the hazards, understand the specific requirements of the equipment and installations, and are competent in applying best practices for installation, maintenance, and inspection.

Plumpton Group offers comprehensive EEHA training courses tailored to meet the needs of industries operating in hazardous areas. These courses cover:

  • EEHA Installation and Maintenance: For electrical personnel responsible for setting up and maintaining safe electrical installations in hazardous areas.
  • EEHA Overhaul and Repair: Focuses on personnel who undertake the overhaul and repair of explosion-protected equipment.


Understanding and implementing EEHA standards is not just about compliance; it’s about ensuring that all operations in hazardous areas are conducted safely and efficiently. With the right training and equipment, the risks associated with working in such environments can be significantly minimised.

If you’re involved in industries where hazardous conditions are a factor, investing in EEHA training is essential. Contact Plumpton Group today to learn more about our EEHA courses and how they can help safeguard your operations while enhancing your team’s competency and confidence in working safely in hazardous areas.

Empower your workforce with the knowledge they need to navigate hazardous environments safely. Enrol in a Plumpton Group EEHA course today.