What is the minimum negative polarized potential required with cathodic protection applied in respect to the Copper-Silver Electrode (CSE)?

The minimum negative polarized potential required with cathodic protection when referencing the Copper-Silver Electrode (CSE) is crucial because it establishes the threshold necessary for effective cathodic protection of a metallic structure. The CSE serves as a standard reference for evaluating the protective effectiveness of cathodic protection systems.

A potential of -850mV with respect to the CSE indicates that the metal surface is adequately protected against corrosion. This value is significant because it provides a benchmark for ensuring that the cathodic protection system is functioning correctly and is effective in mitigating corrosion processes. Values lower than this threshold may indicate insufficient protection, while values higher might not directly signify better protection but could potentially engage other corrosion processes.

Understanding this threshold is vital in cathodic protection practices, as it reinforces the importance of monitoring and adjusting protection levels to maintain the integrity of buried or submerged structures.