What does 'close interval potential survey' help assess?

The close interval potential survey is a critical method used in the field of corrosion control for pipeline and other buried metallic structures. This technique is primarily employed to assess the corrosion potential of these structures by measuring the electrical potential at closely spaced intervals along the length of the pipeline.

By performing this survey, technicians can identify areas where the protective cathodic systems may not effectively shield the metal from corrosive environments. The data collected provides invaluable insights into the effectiveness of cathodic protection systems, enabling the identification of corrosion risk zones that require further attention or remediation to prevent pipeline failures.

Water quality, electrical load, and temperature fluctuation do not directly relate to the purpose of a close interval potential survey, as they address different aspects of environmental and system performance rather than the specific intent of evaluating corrosion potential.