Earthing System Design & Testing

Safe, compliant and precisely engineered earthing solutions for utilities, substations, and industrial facilities.

Why a Robust Earthing System Matters

A well-designed earthing system is the foundation of electrical safety. It protects personnel, equipment, and infrastructure from dangerous fault currents and hazardous step and touch potentials.

Our engineers use advanced simulation software — including CDEGS — to model, validate and optimise earthing designs to Australian and international standards.

Soil Reactivity Test

On-site soil resistivity testing using the Wenner 4-pin method to determine soil layering and electrical characteristics for accurate earth grid design.

Earth Grid Design

Engineered earth grid designs using CDEGS simulation software, optimised for fault current dissipation and step/touch voltage compliance.

Earth Grid Compliance Check

Independent audit and verification of existing earthing systems against current Australian standards and network regulatory requirements.

Fault Finding

Systematic field testing and diagnostics to identify earthing faults, continuity breaks, and corrosion issues in existing installations.

How GridServe Supports Your Projects

GridServe provides comprehensive earthing system design and testing solutions across Australia for water, power, and gas utilities, renewable energy projects, asset relocation works, mines, government agencies, and private sector clients. Our team is committed to delivering every project safely, on schedule, and within budget.

Our Key Services

  • Earthing system design for HV substations, renewable energy facilities, BESS, and utility networks using advanced modeling software.

  • Electrical hazard assessments, including Earth Potential Rise (EPR) and Low-Frequency Induction (LFI) studies, along with pipeline mitigation strategies.

  • On-site testing and commissioning performed in line with industry standards and regulatory requirements.

Earthing System Design

We provide specialized earthing solutions for all voltage levels, from 11kV to 500kV, for utilities, generation, and renewable energy projects. Using CDEGS software, we deliver tailored and efficient designs that meet safety and compliance standards.

LFI, EPR, and EMF Assessments

GridServe has expertise in performing EPR and LFI studies, especially for water and gas utilities. Our team can design and implement mitigation measures in-house to minimize hazardous voltages on pipelines and protect assets from corrosion.

Earthing System Testing

We offer thorough testing and inspection services to ensure earthing systems operate safely and effectively. Our testing capabilities include:

  • Soil resistivity testing using the 4-Probe Wenner Method (AEMC Model 6471)

  • Earth continuity testing and visual inspections

  • Current distribution analysis in cable screens and overhead earth wires

  • Low-current, off-frequency Current Injection Testing (CIT)

  • Fall-of-potential testing

Lightning Protection Design and Testing

We deliver complete Lightning Protection System (LPS) design and testing in accordance with AS 1768:2021, including:

  • LPS design for all structures using CDEGS SESShield-3D

  • Rolling Sphere and Volume Collection design methods

  • Earth grid and equipotential bonding layout

  • Optimized placement of air terminals, down conductors, earth terminations, and surge protection systems

Equipment and Tools

GridServe uses leading industry tools and software to ensure precise, reliable results, including:

  • CDEGS software by SES Tech (full module suite)

  • Streets Distribution Designer by Safearth

  • AEMC Model 6471 and Fluke 1625 for ground resistance testing

  • Red-phase current injection testing equipment


To discuss your specific earthing requirements or explore tailored solutions, please contact us at info@gridserve.com.au

Need an Earthing System Assessment?

Contact our team for a tailored proposal and site inspection.