Hazardous Area Audits

In Queensland, hazardous area electrical installations must be inspected by an accredited auditor before first connection, and before reconnection after electrical installation work (to the extent affected), unless specific exemptions apply.

We provide audit planning, on-site inspection, reporting, and close-out support so commissioning isn’t delayed by late findings.

What we inspect (typical focus areas)

Ex equipment selection and certification (EPL, gas group, temperature class, dust/IP, ‘X’ conditions)
Installation quality: cable entries/glands, sealing/barriers, enclosure integrity, segregation, mechanical protection
Earthing/bonding and equipotential requirements
Documentation: zone drawings, equipment register, inspection/test records, as-builts
Alignment to applicable requirements (AS/NZS 60079 series + AS/NZS 3000, as applicable)

Audit readiness (recommended before the formal audit)

Documentation/evidence pack review
Targeted site walkdown to find likely nonconformances early
Prioritised punch list + close-out coaching (reduces commissioning delays)

Audit process (what clients can expect)

Scoping & booking (confirm what is in-scope under s221 + commissioning date)
Pre-audit document request and review
On-site inspection (installation + documentation verification)
Report issuance + close-out support (clarifications/evidence/re-inspection if required)

Call our Team about
your HA Audit requirements Today!

1300 15 66 85

Other HADC Services

Hazardous Area Classification

Hazardous Area Design

Hazardous Area Audit FAQs

When is an audit required?

When is an audit required?
In Queensland, hazardous area electrical installations generally require audit before first connection and before reconnection after electrical installation work (to the extent affected), unless an exemption applies.

Are “like-for-like” replacements exempt?

Are “like-for-like” replacements exempt?
Sometimes only where the replacement meets the regulator’s prescribed like-for-like criteria and conditions. We can help confirm eligibility and document the decision.

Can you audit only part of a site?

Can you audit only part of a site?
Yes, audits can be scoped to the affected installation/area (e.g., a new skid or modified process zone), provided boundaries and “affected works” are clearly defined.

Can you help close out findings?

Can you help close out findings?
Yes, we explain findings, recommend practical rectification options, and support evidence packs and re-inspection readiness so the audit can be closed efficiently.

Why RelyOn?

• Led by industry-recognised HACD engineers

• Independent, defensible engineering advice

• Deep experience across renewables, BESS, hydrogen & industrial assets

• Integrated with broader electrical safety & compliance services

Speak to our Hazardous Areas Team