A hazardous areas verification dossier is a live, legal document demonstrating that your installation complies with the relevant standards. This should be available to everyone on site, and should be updated as equipment is inspected, new equipment installed or classification changes.
We've outlined below what should be included in your verification dossier. There will be some minor differences, depending on whether your site is predominantly gas, dust, or both. This information is the minimum requirement for the dossier to be compliant with the requirements of AS/NZS 60079.14. Want to know more? Contact the experts at HAZ.
Area classification documents, with drawings showing the classification and extent of hazardous areas (including the zoning)
Optional assessment of consequences of ignition (Equipment Protection Levels (EPLs))
Where applicable, gas, vapor or dust classification in relation to the group or subgroup of the electrical equipment
Temperature class or ignition temperature of the gas or vapor involved
Material characteristics including electrical resistivity, minimum ignition temperature of the dust cloud and dust layer, and minimum ignition energy of the dust cloud
External influences and ambient temperature
Any use of conditions of control for exceptional circumstances
Manufacturer’s instructions for selection, installation and initial inspection of equipment
Documents for electrical equipment with conditions of use (e.g. for equipment with certificate numbers which have the suffix “X”)
Descriptive system document for the intrinsically safe system
Details of any relevant calculation (e.g. for purging rates for instruments or analyser houses)
For Group I and New Zealand, declaration of conformity from the manufacturer or a qualified person (where applicable)
Information to ensure correct installation of the equipment, provided in a format which is appropriate for the personnel responsible for this activity
Documentation relating to suitability of the equipment for the area and environment it will be exposed to, e.g. temperature ratings, type of protection, IP rating, corrosion resistance
Plans showing types and details of wiring systems
Records of selection criteria for cable entry systems, for compliance with the requirements of the type of protection
Drawings and schedules relating to circuit identification
Records of the initial inspection
Declaration of installer/qualified person
Need help with preparing your verification dossier?
The HAZ team of expert engineers takes a practical approach to finding simple, productive and cost-effective compliance solutions for
equipment installed and operated in hazardous areas. With our head office in Brisbane we have delivered practical solutions to clients
throughout Australia, SE Asia and the USA.
We'll take a practical approach and create the simplest and most productive solution for you.