Deep anode installations are installed at a nominal depth of what minimum below the earth's surface?

Deep anode installations are designed to provide an effective means of corrosion control, particularly in environments with high resistivity or where other mitigation methods might be inadequate. Installing these anodes at a minimum depth of 50 feet below the earth's surface helps ensure a stable and consistent environment for the anodes to function optimally.

At this depth, the anodes are less likely to be influenced by surface conditions, such as temperature fluctuations, moisture variations, or soil composition changes that can affect their performance. Additionally, deep installations help reduce the risk of physical damage or interference from surface activities.

The depth of 50 feet is chosen based on various factors, including the typical resistivity of soils and the requirement for proper grounding and cathodic protection. This significant depth helps maintain the necessary electrolyte for the current to flow effectively, enhancing the overall efficiency of the cathodic protection system.