Cathodic Protection Rectifier Inspection

Periodic inspection template for cathodic protection rectifiers and impressed current sources, including output readings, operating condition, alarms, and corrective actions. Designed to document recurring inspections performed up to six times per year with no interval exceeding 2.5 months.

Inspection Details

• Asset ID / Rectifier location
  Identify the rectifier, station, or impressed current source being inspected.
• Inspection date and time
  Record when the inspection was performed.
• Inspection interval within required frequency
  Confirm this inspection is part of the required recurring schedule and that no interval exceeds 2.5 months.

Rectifier Enclosure and Site Condition

• Enclosure secure, intact, and weather-resistant
  Verify the cabinet, door, hinges, latches, and seals are intact and protect the equipment from weather and unauthorized access.
• Access to rectifier unobstructed
  Confirm the rectifier is accessible for inspection and maintenance without obstruction.
• Warning labels and identification legible
  Verify equipment identification, hazard labels, and operating markings are present and readable.
• Evidence of overheating, corrosion, or physical damage
  Check for discoloration, burnt components, rust, leaks, loose wiring, or other visible defects.

Electrical Condition and Output Readings

• AC input present
  Confirm incoming AC power is available to the rectifier.
• DC output voltage
  Record the rectifier DC output voltage.
• DC output current
  Record the rectifier DC output current.
• Output within expected operating range
  Confirm the measured output is consistent with the established operating setpoint or normal operating range for this asset.
• Meters and indicators functioning
  Verify analog or digital meters, indicator lights, and displays are operating and readable.

Protection Performance and Controls

• Current and voltage controls stable
  Verify adjustment controls are secure and the output is stable during the inspection.
• Alarm or fault indicators normal
  Confirm there are no active alarms, fault lights, or abnormal indicator conditions.
• Reference electrode / test point condition acceptable
  If applicable to the site, verify test points, leads, and reference electrode connections are intact and usable.
• Abnormal noise, odor, or vibration observed
  Check for abnormal transformer hum, burning odor, arcing, or unusual vibration.

Deficiencies, Corrective Actions, and Sign-Off

• Deficiencies identified
  Select any observed deficiencies or non-conformances.
• Corrective action required
  Indicate whether maintenance, repair, or follow-up testing is required.
• Inspector signature
  Inspector attestation that the inspection was completed and the recorded information is accurate.