Half-Cell Potential Survey — Measuring Cathodic Protection Effectiveness

What is Half-Cell Potential Survey?

KCC carries out underwater half-cell potential surveys using calibrated reference electrodes to measure the electrochemical potential of marine structures and assess whether cathodic protection systems are providing adequate protection.

What's Included

Calibration of reference electrode prior to survey
Potential readings at defined grid points across the structure
Assessment of readings against protection criteria
Identification of areas of under-protection or over-protection
Formal CP survey report with recommendations

Why This Matters

Cathodic protection systems that are not providing adequate protection allow corrosion to proceed — potentially causing structural damage before the next planned inspection. Regular potential surveys confirm that protection is being maintained.

Related Services in Cathodic Protection Survey

Anode Consumption Survey

Diver inspection and measurement of sacrificial anodes to assess consumption rates and remaining service life.

ICCP Reference Electrode Survey

Inspection and testing of impressed current cathodic protection system reference electrodes.

CP Survey Reporting

Formal CP survey reports with potential readings, anode condition, and maintenance recommendations.

Part of

Subsea Inspection

KCC provides comprehensive subsea inspection services across marine infrastructure, port assets, and

View all Subsea Inspection services

IMCA ADCI HSE HKCP

IMCA · ADCI · HSE · HKCP Compliant

All diving operations conducted to IMCA, ADCI, HSE & HKCP standards

Need Half-Cell Potential Survey?

Get a fast response from our team in Hong Kong.

Ready to Get Started?

Our team is ready to discuss your project requirements and provide a detailed proposal.

Back to Services