What is one method to reduce IR drops through the electrolyte?

One effective method to reduce IR drops through the electrolyte is to place a reference electrode near the structure. A reference electrode serves as a stable point of measurement for corrosion potentials in the vicinity of the structure being protected. When positioned close to the structure, the reference electrode can more accurately reflect the potential at that location, minimizing the effects of IR drop, which occurs due to resistance in the electrolyte.

IR drop can create discrepancies in measured potentials, making it difficult to assess the true state of the cathodic protection system. By ensuring that the reference electrode is appropriately placed, the accuracy of potential measurements is improved. This placement allows for a better understanding of the electrical environment around the structure and helps to maintain effective monitoring of protection levels.

Other methods mentioned, such as monthly checkups, while necessary for maintenance, do not directly address the issue of IR drops. Galvanic anodes can help in corrosion control, but they don't specifically mitigate IR drops through the electrolyte. Changing reference electrodes frequently may introduce variability and could potentially lead to inconsistent measurements instead of helping to stabilize and reduce IR drop effects. Thus, placing a reference electrode near the structure remains the best choice for minimizing IR drop in this context.