UEEHA0021 — Design explosion-protected electrical systems and installations

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What an assessment for UEEHA0021 must cover

20 assessable components: 3 elements (14 performance criteria), 3 performance evidence and 3 knowledge evidence requirements. An audit-defensible tool maps every question and task back to these — that mapping is the coverage matrix Auditori generates alongside the assessment.

Elements & performance criteria

1 Establish the explosion-protection requirements for an electrical system and installation

1.1Explosion- protection requirements for electrical installation for hazardous areas are obtained, interpreted and applied
1.2Hazardous area classification drawings, process specifications and plant design documentation are reviewed and the scope of the required electrical installation determined
1.3Explosion-protection requirements are determined from reviewing the standards to the installation is required to comply

2 Incorporate the explosion-protection requirements in electrical systems and installation design

2.1Consideration is given to locating electrical equipment in non-hazardous areas, where possible
2.2The installation is designed to maximise ease of access for inspection and maintenance
2.3Ability to obtain the required degree of operational safety for the installation is incorporated in the design
2.4The specification for the ratings and characteristics of electrical equipment in the installation are compatible with the explosion-protection requirements
2.5Engineering principles are applied to ensure the parameters for each equipment type, equipment group, equipment temperature class, cables and other factors for correct application are compliant and correctly specified
2.6Equipment is specified for the explosive atmosphere, zone and external influences in the locations where equipment is to be installed
2.7Wiring systems (cables, supports, enclosures) are specified for the atmosphere, zones and external influences along the routes where they are to be installed

3 Document and finalise design

3.1Design is checked for compliance with the requirements established for the electrical system and installation
3.2Design is documented to include specification of all explosion-protected equipment and wiring systems, equipment location and cable route drawings and compliance documents for each item of explosion-protected equipment
3.3Design is submitted for appropriate organisational approval and, where applicable, statutory or regulatory approval
3.4Approved copies of design documents are included in the verification dossier

Performance evidence

establishing the explosion-protection requirements including: - determining the scope of the electrical system and installation from reviewing hazardous area classification drawings, process specifications and plant design documentation - determining explosion-protection requirements by reviewing the standards with which the installation is required to comply
incorporating the explosion-protection requirements in the design including: - locating equipment in non-hazardous areas if possible and providing ease of access for inspection and maintenance - incorporating the ability to obtain the required degree of protection for operational safety - applying relevant engineering disciplines to ensure parameters for each equipment type, equipment group, equipment temperature class and cables are compliant and correctly specified - specifying equipment for the explosive atmosphere, zone and external influences in the locations where they are to be installed - specifying wiring systems (cables, supports, enclosures) relevant to the atmosphere, zones and external influences along the routes where they are to be installed
documenting and finalising the design including: - checking the design for compliance with the requirements established for the electrical system and installation - documenting the explosion-protection aspects of the design to include specification of all explosion-protected equipment and wiring systems, equipment location and cable route drawings and compliance documents for each item of explosion-protected equipment - submitting the design to the relevant parties for approval - including approved copies of the design in the verification dossier

Knowledge evidence

design aspects of electrical installation for hazardous area equipment including: - location of explosion-protected equipment - electrical rating and characteristics of equipment - providing ease of access for inspection and maintenance - means of obtaining the required degree of operational safety - documentation (additional to that required for a non-hazardous area) to be included in the verification dossier
assurance of conformity of equipment including: - equipment with acceptable certification - equipment without acceptable required certification - repaired, second-hand or existing equipment
explosion-protected requirements including: - explosive atmosphere electrical installation design and selection of equipment including: - general requirements - information required for selecting explosion-protected equipment - procedure for selection of repaired or existing equipment - selection of equipment - protection from dangerous incendive sparking - electrical protection - emergency switch-off and electrical isolation - wiring systems - additional requirements for each type of protection including determination of required parameters - verification of intrinsically safe circuits - method for determining maximum safety parameters for intrinsically safe circuits - equipment protection levels (EPLs) as an alternative method for the selection of equipment

Unit content sourced from training.gov.au — © Commonwealth of Australia, licensed under CC BY 4.0. Auditori is not affiliated with the Department of Employment and Workplace Relations.

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Real, unedited Auditori output (RIIHAN201E shown), branded for a sample RTO:

Questions about assessing UEEHA0021

What does an assessment tool for UEEHA0021 need to cover?

To satisfy the Principles of Assessment and Rules of Evidence, an assessment for UEEHA0021 needs to address all 20 unit components: 3 elements with 14 performance criteria, 3 performance evidence requirements, 3 knowledge evidence requirements, and the foundation skills. A coverage matrix mapping each question and task to these components is what an auditor looks for.

How does Auditori generate an assessment tool for UEEHA0021?

Auditori pulls the current release of UEEHA0021 from training.gov.au and generates a complete package: candidate assessment, assessor guide with model answers and observation criteria, and a coverage matrix mapping every component. A suitably qualified person then reviews and approves the draft in a built-in workflow — consistent with ASQA's guidance on AI use in VET — before export as branded PDF and editable Word.

Is the first assessment tool really free?

Yes. Every new account includes one free credit — enough to generate the complete assessment tool for UEEHA0021 — with no card and no subscription required. After that it's pay-as-you-go per unit.

Can I check my existing UEEHA0021 assessment instead of generating a new one?

Yes — upload your existing assessment or learner guide and Auditori maps it against every element, performance criterion, PE and KE of UEEHA0021, showing exactly what's covered and what's missing. Mapping costs a quarter of a credit.

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