Lightning Protection Design and Installation in Melbourne

ARA Electrical Services provides lightning protection design and installation for industrial and commercial facilities across Melbourne. Projects begin with an engineering-led site assessment — reviewing building height, exposure, structural materials, services entry points, existing earthing arrangements, and how the facility operates — before any design work is undertaken.

Lightning protection is not limited to placing air terminals on a roof. In industrial and commercial environments, it is part of a broader risk management strategy that protects people, structures, plant, and sensitive electrical infrastructure from both direct strike damage and the secondary effects that follow a strike event.

Risk Assessment and Design Basis

A structured lightning protection study begins with risk assessment in accordance with AS 1768:2021. This involves reviewing the facility’s exposure to lightning, the consequences of a direct or indirect strike, and the level of protection needed to reduce risk to an acceptable level. It also includes assessment of any existing protection measures and whether those measures remain adequate for the current building use, occupancy, and electrical infrastructure.

The design phase addresses how lightning energy will be intercepted and safely conducted to earth. This requires coordinated design of air terminals, down conductors, bonding paths, and grounding components — developed as an integrated system rather than independently specified components. Uncontrolled side flashing, structural damage, and secondary electrical impacts are the practical consequences of systems that have not been designed with this coordination in mind.

What a Lightning Protection Study Covers

ARA’s lightning protection design and installation scope in Melbourne includes:

  • Facility risk assessment and exposure analysis in accordance with AS 1768:2021
  • Lightning protection system design including air terminal placement and down conductor routing
  • Grounding system review and earth termination design
  • Soil resistivity assessment and electrode configuration
  • Bonding and equipotential strategy across conductive structural elements
  • Compliance verification against AS 1768:2021
  • Inspection, testing, and ongoing performance verification planning

These elements matter because a lightning protection system is only as effective as its highest-impedance path to earth. A well-designed system must account for the full fault current path — from the strike point through down conductors to the earth termination — and how the building’s electrical and structural systems interact during a lightning event.

Grounding and Bonding as Engineering Priorities

Grounding is not secondary to the air terminal system — it is central to performance. A poorly designed or disconnected earthing system can prevent the protection system from dissipating energy as intended, increasing the risk of structural damage and equipment loss rather than reducing it.

Bonding is equally critical. By ensuring conductive systems are properly interconnected throughout the building, voltage differences between structural and electrical elements during a strike are minimised. In practice, the quality of bonding detail often has more influence on real-world protection performance than the configuration of the air terminal network above it.

Tailored to the Site and Its Operating Conditions

Exposure varies significantly between facility types. A warehouse, processing plant, substation, and multi-building industrial site each present different structural, electrical, and operational considerations. ARA’s approach is tailored to how the site is built and used — not based on a generic roof plan that fails to account for services entry, adjacent structures, earthing infrastructure, or operational risk profile.

Using current modelling tools and structured engineering review, ARA develops lightning protection solutions that are specific to the building and integrated with the wider electrical infrastructure. The result is a system that supports safety and resilience in service, is practical to install and maintain, and is verifiably compliant with AS 1768:2021.

If your facility requires new lightning protection, a system review, or engineering input for a project in Melbourne or across the east coast, contact ARA Electrical Services to discuss your requirements.