Complex high voltage infrastructure projects are rarely delivered in isolation. While the technical components including transformers, switchgear, protection systems, and high-voltage (HV) cabling are fundamental, the long-term reliability of these assets depends just as heavily on the quality of the collaboration behind them.

Our recent delivery of the high-voltage asset and network for the Launceston Health Hub demonstrates how structured engineering partnerships, rigorous standards compliance, and coordinated commissioning processes combine to deliver resilient infrastructure for critical community services.

The Project Context: Powering Healthcare Infrastructure

The Launceston Health Hub represents a significant private investment in Tasmania’s health sector. Located within the Launceston CBD, the multi-storey facility has been designed to support a range of medical and specialist health services. Facilities of this nature demand a power supply that is not only reliable but also resilient, maintainable, and future-ready.

Healthcare environments are uniquely sensitive to power quality and continuity. According to the international standard IEC 60364, engineers must design electrical installations in medical locations to minimise risk to patients and ensure continuity of essential services. In Australia AS/NZS 3000 and AS/NZS 3009 reinforce these requirements, which set stringent requirements for earthing systems, fault protection, segregation, and system integrity.

For the Launceston Health Hub, this translated into a high-voltage network architecture capable of supporting critical loads, providing clear protection discrimination, and allowing safe maintenance access within a constrained urban footprint.

Engineering Foundations: Earthing and Safety

Earthing is often overlooked in public discussion, yet it is central to the safe operation of any HV installation. The objective is to ensure that all exposed conductive parts including structural steel, switchboard enclosures, cable sheaths, and reinforced concrete will remain at substantially the same electrical potential during both normal operation and fault conditions.

Standards such as IEEE 80 and Australian network utility specifications provide guidance on step and touch potential limits to protect both personnel and the public. In practice, this required:

• Installation of a comprehensive earthing grid integrated with the building’s structural reinforcement.
• Bonding of metallic services and embedded conductive elements.
• Verification testing to confirm compliance with allowable resistance and potential rise thresholds.

In a healthcare facility, where patient vulnerability is a core consideration, conservative engineering judgment and standards compliance are non-negotiable. Early-stage diligence in earthing design significantly reduces risk exposure over the asset’s operational life..

Integrating High Voltage Within a Constrained Footprint

As the project progressed, spatial efficiency became a defining challenge. Urban healthcare facilities rarely have the luxury of expansive substation yards. Instead, HV and LV infrastructure must be consolidated into compact switching stations while maintaining clearances, thermal performance, and safe access provisions.

The final switching station at the Launceston Health Hub houses:

• High-voltage switchgear
• Distribution transformers
• Low-voltage main switchboards
• Protection and control systems
• Associated cabling and termination infrastructure

Designing this arrangement required close coordination between civil, structural, and electrical disciplines. Minimum approach distances, ventilation requirements, fire segregation, and maintainability all influenced the layout.

The engineering team engineered transformer selection, switchgear configuration, and cable routing to ensure discrimination between upstream and downstream protection devices, limiting fault impact and supporting operational continuity. Such coordination aligns with broader power system design principles advocas advocated by organisations such as Engineers Australia, which emphasise whole-of-life performance in infrastructure planning.

Cross-Sector Collaboration in Practice

Technical competence alone does not deliver infrastructure. Complex projects demand coordinated execution across multiple stakeholders.

For this project, Enginuity Power Solutions partnered closely with Noble Power Solutions and Degree C to deliver the HV asset, working alongside principal contractor Voss Construction.

This integration extended beyond installation. Interface management between building services, structural works, and HV infrastructure required regular coordination to ensure:

• Cable pathways aligned with structural penetrations.
• Equipment delivery sequencing matched construction staging.
• The commissioning team aligned protection settings with final load configurations.
• The team reviewed compliance documentation to confirm alignment with utility and regulatory expectations.

Now, with switchgear and transformers installed in situ, the project transitions to its final phase, commissioning and energisation by TasNetworks.

Utility energisation is not a formality; it is a structured verification process. Protection testing, relay configuration validation, insulation resistance testing, and system integrity checks are all reviewed to confirm compliance with network standards and safety requirements before connection to the broader grid.

Commissioning: Where Design Meets Reality

Commissioning represents the convergence of engineering intent and operational reality. It is during this stage that theoretical coordination studies are validated against installed conditions.

Key commissioning activities include:

• Primary and secondary injection testing of protection systems.
• Verification of transformer tap settings and phasing.
• Functional testing of interlocks and safety systems.
• Confirmation of labelling, documentation, and as-built accuracy.

This structured process reflects best practice in HV project delivery and ensures the asset can operate safely from day one. For healthcare infrastructure, where electrical reliability underpins clinical capability, commissioning rigour directly contributes to community wellbeing.

Infrastructure That Serves for Decades

Infrastructure built for healthcare is expected to operate for decades, often accommodating evolving technology and expanding service requirements.

A well-designed HV network provides:

• Capacity for future load growth.
• Clear isolation points for maintenance.
• Protection schemes that limit outage scope.
• Documented compliance with national and international standards.

By focusing on precision engineering, disciplined documentation, and collaborative delivery, Enginuity Power Solutions positioned the power system for long-term service.

Watch this short video that shows the whole project from start to completion.

Community Outcomes Through Engineering Discipline

For a Tasmanian engineering business, working across the sector—from construction to utilities—carries both opportunity and responsibility. Community infrastructure projects are not measured solely by technical metrics; they are measured by the confidence they instil and the reliability they deliver over time.

The developers designed the Launceston Health Hub to serve the public for generations. Behind its clinical spaces sits an engineered HV network built on standards compliance, cross-sector collaboration, and disciplined execution.

While transformers and switchboards are tangible outcomes, the deeper achievement lies in the integrated effort that brought them into service. An approach that ensures the infrastructure beneath the surface is as robust as the healthcare services it enables.

If you want help implementing your HV asset, give Enginuity Power Solutions a call on (03) 6709 8070 or get in touch today via our contact form.