Grounding and Earthing Resistance Test Record

Inspection template for documenting earth electrode and bonding resistance testing using fall-of-potential or clamp-on methods, with measured values, site conditions, acceptance criteria, deficiencies, and corrective actions.

Inspection Identification

• Inspection date and time recorded
• Site, asset, or electrical system identified
  Record the facility, panel, structure, electrode system, or equipment being tested.
• Inspector name and qualification documented
  Record the inspector or competent person performing the test.
• Test purpose and scope documented
  State whether the test is for earth electrode resistance, bonding resistance, or both.

Safety and Test Preconditions

• Work area controlled and electrical hazards addressed
• Appropriate PPE worn for the test conditions
• Test area free of unauthorized personnel and trip hazards
• Lockout-tagout or equivalent isolation applied where required
• Weather and soil conditions suitable for testing
  Note rain, frozen ground, standing water, or other conditions that may affect readings.

Test Equipment and Setup

• Test method selected
• Ground resistance tester model and serial number recorded
• Tester calibration status verified
• Test leads, clamps, and probes inspected for damage
• Probe spacing or clamp placement documented
  For fall-of-potential, record probe distances and layout. For clamp-on, record clamp location and conductor identification.

Site Conditions and Test Configuration

• Soil condition recorded
• Ambient temperature recorded
• Test configuration and electrode layout documented
  Include electrode type, bonding arrangement, nearby utilities, and any parallel paths that may affect readings.
• Potential interference sources identified
  Identify parallel grounding paths, buried metal, connected neutrals, or nearby structures that could influence the result.

Test Results and Acceptance

• Measured earth resistance value
• Measured bonding resistance value
• Test result meets site acceptance criteria
• Repeat reading taken when initial result was unstable
  Record whether a confirmatory reading was taken after repositioning probes or verifying clamp placement.
• Measurement notes and anomalies documented
  Include fluctuating readings, suspected parallel paths, or any reason the result may not represent true electrode resistance.

Deficiencies and Corrective Actions

• Deficiencies identified
• Corrective action documented
  Describe repairs, retest requirements, equipment replacement, or escalation to the AHJ if applicable.

Review and Sign-Off

• Inspector signature
• Supervisor or reviewer approval
  Optional review by supervisor, electrical lead, or authorized reviewer.