Hazardous Area Inspections

Demonstrate compliance and ensuring equipment integrity

The risk associated with explosive atmospheres is reduced when ongoing regular hazardous areas inspections of Electrical Equipment in Hazardous Areas (EEHA) are performed. A regular inspection program gives the owner the confidence that in the unlikely event there is a flammable or combustible atmosphere the equipment in that area would operate as intended.

The right design from the start is the key, along with the selection and installation of the equipment. Moving in to operations AS/NZS 60079.17 outlines the requirements for ongoing regular inspections and maintenance. The aim is to identify problems with the integrity of the equipment, in order to reduce harm to people and plant in the event a flammable or combustible atmosphere is present.

The basics when inspecting EEHA equipment

  New installations require an initial detailed inspection. Inspections are NOT a "tick and flick" exercise

 The initial inspection is mandatory as AS/NZS 60079.10.1 & AS/NZS 60079.10.2 are called up in the AS/NZS 3000 wiring rules

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Types of inspection regimes

HAZ Area Inspection Types


Visual Inspections

A visual hazardous area inspection is non-intrusive and doesn’t require any tools to access the equipment. The purpose is to identify defects, such as missing bolts, damage or broken lenses which are apparent to the eye.

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Close Inspections

Combination of the visual hazardous area inspection items along with the identification of defects such as loose bolts or glands etc. This requires the use of tooling. Close inspections do not normally require the enclosure to be opened or the equipment to be de-energised.

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Detailed Inspections

Detailed hazardous area inspections encompass those aspects covered by a close and visual inspection and, in addition, identify those defects, such as loose terminations, which will only be apparent by opening the enclosure with tools and test equipment. These inspections may require the enclosure to be opened, equipment to be de-energised and dismantling of cable glands where applicable.

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Free HAZ Tools

Inspection Sheets

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