Grounding and Earthing Resistance Test Record

It captures the full test event for earth electrode resistance and bonding resistance, including inspection identification, safety preconditions, test equipment, site conditions, measured values, and sign-off. The template is built for documenting either fall-of-potential or clamp-on methods, depending on the site and equipment. It also includes a place to record acceptance criteria and any corrective actions when results do not meet the site requirement.

Use it when the main task is verifying grounding or earthing performance, not just doing a broad visual check. It is a good fit for commissioning, periodic maintenance, post-repair verification, lightning protection checks, and troubleshooting nuisance trips or stray voltage concerns. If you only need to log a routine panel walk-through, a general electrical inspection form is usually a better fit.

The record should be completed by a qualified person who understands the test method, the equipment being tested, and the site’s acceptance criteria. In many workplaces that means an electrician, electrical maintenance technician, or other competent person working under site procedures. A supervisor or reviewer should sign off when the organization requires a second review.

The cadence depends on the site’s risk profile, equipment criticality, and internal maintenance program. Many organizations test on a scheduled basis, after electrical work, after a fault event, or when a change in soil conditions or site layout could affect readings. The template helps you document the interval you used, but the actual frequency should follow site policy, manufacturer guidance, and applicable standards.

It supports documentation aligned with OSHA electrical safety expectations, ANSI/ASSP program practices, and common electrical maintenance standards used for grounding verification. It can also be adapted for facilities governed by NFPA-based electrical safety programs or other local electrical code requirements. The template does not replace a site-specific engineering judgment or the acceptance criteria set by the authority having jurisdiction.

Common mistakes include failing to note the test method, omitting probe spacing or clamp placement, and recording a resistance value without the site conditions that affected it. Another frequent issue is treating an unstable reading as final instead of repeating the measurement and noting the anomaly. Missing calibration status or using a damaged lead can also make the record hard to defend during review.

Yes. The acceptance field should reflect the site’s own threshold, which may vary by equipment type, system design, and local requirements. Some sites use different criteria for earth electrodes, bonding paths, and temporary construction systems, so the template should be edited to match the asset being tested. Keep the criterion visible on the record so the pass/fail decision is easy to audit later.

Yes. The fields for tester model, serial number, calibration status, and measured values make it easy to transfer results from a digital ground tester into a CMMS or maintenance log. If your workflow supports attachments, you can also link photos, instrument reports, or calibration certificates. That helps create a complete record without relying on handwritten notes alone.

Repeat the reading after checking lead placement, probe spacing, soil contact, and nearby interference sources. If the result still fails, document the deficiency, note the likely cause if known, and assign corrective action such as rework, additional testing, or engineering review. The template is designed to preserve both the measurement and the follow-up action so the issue does not disappear after the inspection.