When designing cathodic protection (CP) for a buried pipeline, several soil characteristics are critically important to assess because they directly impact the effectiveness and efficiency of the CP system. Soil resistivity is the most crucial factor. Soil resistivity is a measure of how well the soil conducts electrical current. Low resistivity soils allow current to flow easily, facilitating CP, while high resistivity soils impede current flow, requiring a higher driving voltage and greater anode output. Soil pH is also important because it affects corrosion rates. Acidic soils (l....
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