Improved fault protection
Identify conditions that may weaken the intended earth path or protection coordination.
Safety Zest · EHS Auditing
Earthing System Audit Services
Examine whether earthing arrangements are documented, identifiable, maintained and supported by reliable test evidence.
Risk-based assessmentPractical action planPan-India delivery
Service overview
What is Earthing System Audit?
An earthing system audit reviews the visible condition, identification, accessibility, records and maintenance controls associated with protective and functional earthing. Depending on the agreed scope, it may also include or coordinate earth-resistance, continuity or related measurements using suitable instruments and competent personnel. The purpose is to identify gaps that could affect fault-current paths, protective-device operation and equipment safety.
An earthing audit is not automatically a complete electrical-system design verification. Excavation, destructive checks, shutdowns, soil-resistivity study, lightning-protection design and detailed fault calculations require separate agreement.
Business and safety value
How does the audit benefit your organisation?
Reliable maintenance
Strengthen earth-pit identification, access, test schedules, records and corrective follow-up.
Better asset traceability
Connect pits, conductors, panels and equipment with drawings, labels and measurement records.
Prioritised upgrades
Separate urgent defects from documentation, maintenance and longer-term engineering improvements.
Our approach
How Safety Zest conducts the audit
Safety Zest agrees whether the assignment is visual, records-based, measurement-inclusive or part of a wider electrical audit. Auditors review the single-line diagram, earthing layout, previous readings and maintenance history, then inspect accessible pits, conductors, terminations, bonds and identification. Measurements, when included, are planned around equipment limitations, weather, isolation needs and safe access. Results are recorded with test method, location and limitations.
Before mobilisation, the agreed proposal records the locations, records, sampling basis, deliverables and exclusions. This prevents hidden assumptions and helps the site arrange safe access and the right stakeholders.
Audit coverage
Typical scope of work
| Audit area | What we examine |
|---|---|
| Design information | Earthing drawings, SLDs, equipment schedules, intended system arrangement and previous recommendations. |
| Physical condition | Accessible pits, covers, chambers, conductors, joints, corrosion, damage, mechanical protection and labels. |
| Connections and bonding | Visible equipment earthing, panels, structures, services and bonding interfaces within the agreed scope. |
| Testing and records | Pit identification, instrument details, method, date, readings, trends and corrective-action history. |
| Management controls | Inspection frequency, responsibilities, change management, contractor work and record retention. |
Methodology
A clear five-stage audit process
- 1Define
Define the system boundary, installation type, test requirement and operational constraints.
- 2Review
Review drawings, asset registers, previous readings and maintenance records.
- 3Inspect
Inspect accessible earthing components and trace identification against records.
- 4Evaluate
Complete or review agreed measurements and investigate inconsistent or abnormal results.
- 5Report
Issue the condition summary, test schedule or results, priorities and engineering follow-up needs.
Outputs
What you receive
- Earthing asset and location observations
- Visible-condition and identification register
- Review of previous earth-resistance or continuity records
- New measurements and instrument details when included
- Risk-ranked corrective recommendations
- Drawing, labelling and maintenance-improvement actions
Connected support
Related Safety Zest services
Frequently asked questions
Questions about earthing system audit
Does the audit include earth-resistance testing?
It can. The proposal must specifically state the pits or systems to be measured, method, instrument, access and isolation conditions. A visual-only scope does not include measurements.
What documents are useful before the visit?
Current earthing layouts, SLDs, pit numbers, previous readings, instrument certificates, maintenance records, equipment additions and known problem history are valuable.
Can every earth pit be tested while the plant is operating?
Not always. The method, interconnected system, access, safety conditions and operational restrictions may limit testing. Any untested locations and assumptions are recorded.
Is this the same as an electrical safety audit?
No. An earthing audit focuses on the earthing and bonding arrangements. A broader electrical safety audit also reviews panels, protection, cables, temporary wiring, work practices and documentation.
When should the system be reassessed?
Review is appropriate after major electrical additions, excavation or civil work near conductors, abnormal readings, lightning events, relevant faults, damage and at the organisation’s defined periodic interval.
Plan the right audit
Discuss your facility with Safety Zest
Share the site type, location, approximate size, operations and immediate concerns. We will propose a focused scope, suitable man-days and clear deliverables.
