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The Hidden Risks of Underqualified Hazardous Area Inspectors

With the release of the new Australian and New Zealand wiring rules AS/NZS 3000:2018, and with the grace period now well and truly over, electrical contracting companies that offer industrial services have had to come to terms with the stricter regulations for wiring and equipment in hazardous areas.

Although these requirements have always existed, previous editions of AS3000 did not reference the hazardous area standards directly. This led many electrical contractors to be unaware of the full scope of the AS60079 and its predecessor AS2381 standards for explosive atmospheres.

The end of the mining and gas project boom has also had an impact, particularly in Western Australia, where many licensed electricians are now out of work. With no disrespect intended, many of these electricians were primarily responsible for tasks like cable pulling and tray installation. More experienced electricians handled the termination of Ex-rated glands and cables, while specialist Ex inspectors conducted the mandatory initial detailed inspections.

Now, some of these electricians have moved east in search of work. Electrical contracting companies are hiring them with the intention of offering hazardous area (Ex) inspection or installation services. While these electricians may hold the required qualifications, concerns arise about their real-world inspection experience. This lack of experience can lead to safety issues being overlooked—issues that seasoned Ex inspectors would likely catch.

Even more concerning is the growing trend of companies enrolling their in-house electricians into Ex training courses with no prior experience. These businesses might only undertake one or two hazardous area jobs per month, while the majority of their work is commercial or residential. Despite this, they often promote themselves as industrial electrical contractors.

A true Ex inspector within an electrical contracting company should have substantial hands-on experience—not just in a single sector like coal mining, but across a range of industries including LNG gas plants and food and beverage facilities. This breadth of experience ensures that inspections are thorough and safety risks are identified promptly and accurately.Just because an electrician completes a short course and receives a certificate doesn’t automatically make them competent to inspect hazardous areas. It’s no different from assuming every engineer with a degree or every electrician with a licence is equally skilled. There are excellent professionals in every field—and others who may be poorly suited to specific tasks.

That doesn’t make them bad at their jobs; it simply means their expertise might lie elsewhere—whether that’s in high voltage systems, switchboard construction, or general factory or residential wiring. Hazardous area work is a specialised discipline, and it deserves to be treated as such.

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