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Earthing Site-Testing & Inspections

Specialist Support for Power Earthing Systems Across the UK

Earthing systems are integral components of electrical power systems, ensuring the safe dissipation of electrical faults and preventing hazards. At Engineering Power Solutions (EPS), we provide a range of survey audits and site-based testing services to assess and verify the safety, performance, and compliance of your power earthing arrangements.

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An eps earthing coodinator conducting soil resistivity testing at a Scottish wind farm

Optimising UK Earthing Systems

Our primary goal is identifying risks and mitigating hazards within your electrical earthing systems. To further ensure safety and compliance with relevant electrical safety regulations, we also provide recommendations for improving your earthing system design.

Our Services Include:

  • Annual & Periodic Testing
  • Soil Resistivity Testing
  • Fall of Potential (FoP) Testing
  • Lightning Protection System (LPS) Inspections & Strike Risk Assessments
  • Visual Surveys & Earthing Continuity Testing
  • Detailed Reporting with Actionable Recommendations
  • Gap Analysis Reporting for Power Earthing & Lightning Protection

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Earthing Condition Assessment: UK Energy Recovery Facility
Earthing Condition Assessment: UK Energy-from-Waste Facility

Client: Undisclosed
Background: Renewables
Location: Scotland, UK
Date: May 2025

Project Summary

Our specialist earthing coordinators carried out a full earthing condition assessment for a large energy-from-waste (EfW) facility located in Scotland. EPS were engaged to verify the safety and compliance of the client’s HV/LV earthing system. This series of site tests provided a baseline for remedial works and ensured the safe operation of the facility’s electrical infrastructure.

The Role of an Earthing System Audit for Electrical Installations
Latest Power Earthing Article

Gain insights into the role of an earthing system audit for electrical installations and how electrical engineering consultancies enhance safety and compliance.

Key Takeaways:

  • Identifying and Mitigating Safety Hazards
  • Compliance with Standards
  • Protection of Electrical Equipment
  • Planning for Future Growth
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When to Arrange an Earthing Survey Audit?

Power earthing site-testing & inspections must be routinely conducted as part of your site maintenance plan, especially when making significant modifications or expansions to electrical assets. This will help ensure that power systems remain safe and operate compliantly. An audit will be required immediately in response to any identified electrical hazards or if an incident has occurred on-site.

Whether you’re concerned about the general power quality at your site or need immediate assistance following an incident, our power earthing system specialists have a strong track record delivering swift and thorough testing & inspections.

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Our Approach

At EPS, our specialist power earthing team deliver extensive engineering support for projects of any size or complexity. We support all HV/LV infrastructure types and associated equipment, covering all voltage levels from 400V to 400kV.

The process of evaluating earthing systems within electrical assets consists of a thorough review of the following aspects:

  • Earthing Design: This involves assessing the adequacy of an earthing system’s design to meet electrical safety standards.
  • Installation: We verify that the earthing system is correctly installed per the specifications.
  • Maintenance: EPS evaluates your ongoing maintenance practices to ensure they meet health and safety requirements.
  • Testing Procedures: We review the methods and frequency of testing to confirm your system’s effectiveness.
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A close up image of an Earthing Switch Local Control Unit

What Standards Govern Electrical Earthing Systems?

Regular earthing system and lightning protection surveys are a central part of compliance with UK and international electrical safety standards, including:
  • BS 7430: Code of practice for protective earthing of power installations
  • BS EN 50522: Earthing of power installations > 1 kV AC
  • IEC/BS EN 62305: Protection against lightning, including risk management, protection of physical structures, and protection of electronic and electrical systems
  • BS EN 62561: – Lightning Protection System Components
  • UL 467: Grounding and bonding equipment

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Why Choose EPS?

Our team brings extensive experience in electrical engineering and earthing systems. We identify issues and provide practical solutions to ensure the safety and reliability of your electrical infrastructure.