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Electrical Engineering Mackay

RPEQ Electrical Engineering - Mackay & Central Queensland
Signed, sealed and engineered to stand behind.

Beetle Engineering provides RPEQ-registered electrical engineering services for industrial and commercial projects across Mackay, the Bowen Basin and Central Queensland. Our principal engineer, Dennis Murphy, holds RPEQ registration in electrical engineering - giving your project the independent sign-off it needs.

RPEQ Electrical Engineering

What rpeq electrical engineering with Beetle actually looks like.

What RPEQ registration means for your project

In Queensland, Registered Professional Engineer (RPEQ) status is a legal credential under the Professional Engineers Act 2002. An RPEQ takes personal professional responsibility for their engineering decisions - not just the business, but the individual engineer whose name is on the documentation.

For you as a client, that matters. When Beetle Engineering provides RPEQ services, Dennis Murphy’s registration number is on the drawings. That’s accountability you can point to.

What we provide under RPEQ registration

Our RPEQ electrical engineering services cover the full range of work that requires a registered engineer on industrial projects:

Engineering design and documentation - electrical design for new installations, upgrades and expansions. We produce designs that comply with AS/NZS standards, are buildable, and include the documentation your maintenance team needs to work from.

RPEQ certification and sign-off - where your project requires an RPEQ certificate of design or engineering assessment, we provide it. This includes written statements that meet the requirements of Queensland legislation and most principal contractor quality systems.

Protection relay design - overcurrent, earth fault, and differential protection schemes for MV and HV electrical systems. We design to current network standards and coordinate with your relevant network service provider where required.

Engineering assessments - independent technical reviews of existing systems, proposed designs, or post-incident investigations. Useful when a second opinion is needed before a project proceeds or when a regulator or insurer requires an independent assessment.

High-voltage systems - transformer installations, HV switchgear, cable systems and associated protection. We work on the HV assets that keep processing plants running.

Typical projects

Most of our RPEQ work comes from three situations:

First, new installations where RPEQ design documentation is required by the principal contractor or site standards. Mining operations in particular commonly require RPEQ engineering packages before construction can commence.

Second, legacy system assessments where older electrical infrastructure needs an engineering review before being extended, modified or handed to a new operator. This is common in sugar mills and older manufacturing plants where original design documentation no longer exists.

Third, incident response - post-fault engineering assessments where a business needs an independent technical view of what failed and why before restarting or making insurance claims.

Standards and compliance

All electrical engineering work is carried out to current Australian Standards including AS/NZS 3000, AS/NZS 61439, and relevant IEC and IEEE standards for protection systems. We keep current with Queensland network standards and work within the requirements of the Electrical Safety Act 2002 and associated regulations.

Documentation is produced in formats that suit your project - whether that’s a formal engineering report, annotated drawings, or a concise one-page certification statement for a straightforward project.

One process. Zero surprises.

Scoping
  • Site walk & asset review
  • Requirements capture
  • Network & OT audit (if required)
Quoting
  • Scope of work definition
  • Deliverables schedule
  • Fixed-price or T&M proposal
Optional
Upfront engineering
  • Concept design & review
  • Feasibility & risk assessment
  • Design basis document
Documentation
  • Functional descriptions
  • Electrical drawings & diagrams
  • Network & architecture diagrams
  • IO lists
  • ITC / test sheets
  • Asset & network audits
Programming
  • PLC programs (Studio 5000 / RSLogix)
  • SCADA & HMI development
  • FactoryTalk / CitechSCADA / Aveva
  • OT network configuration
FAT → SAT & commissioning
  • Factory acceptance testing (FAT)
  • Site acceptance testing (SAT)
  • Loop checks & punch-list close-out
  • Hand-back & as-built documentation
All industries →

Common questions, straight answers.

RPEQ stands for Registered Professional Engineer Queensland. Under the Professional Engineers Act 2002, certain engineering work in Queensland must be carried out or supervised by an RPEQ. For electrical engineering, this includes design work on systems above 1000V, complex protection schemes, and engineering assessments that require a formal sign-off. An RPEQ takes professional and legal responsibility for their engineering decisions.
You need an RPEQ when your project involves reportable work under Queensland legislation - typically high-voltage systems, major new electrical installations, protection relay design, or engineering assessments where a competency statement is required. If your insurer, principal contractor or site requires RPEQ certification, we can provide it. If you're unsure whether your project requires it, contact us and we'll give you a straight answer.
We can review and certify engineering work designed by others, but only where we are satisfied the design is sound. We do not provide rubber-stamp sign-offs. Our review process includes checking design documentation against applicable standards, requesting amendments where needed, and issuing a written assessment. This takes time - factor it into your project schedule.
Yes. We have experience with HV switchgear, transformer installations, protection relay schemes, and HV cable systems typical in mining and industrial applications across Central Queensland. All HV work is carried out under appropriate electrical licences and RPEQ oversight.

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Ready to discuss your rpeq electrical engineering project?

Talk to an RPEQ engineer about your project. We work across mining, sugar, manufacturing and utilities throughout Queensland.