What is the acceptable range of resistance for properly installed grounding cells?

The acceptable range of resistance for properly installed grounding cells is between 0.2 and 0.5 ohms. This range is ideal because it ensures that the grounding system is effective in minimizing the risk of electrical interference and improving the overall safety of the pipeline system. A lower resistance value is preferable as it allows for better current flow, reducing the potential for stray currents that can lead to corrosion or other electrical issues.

Maintaining a resistance within this specified range is critical, as it directly affects the grounding system's ability to safely discharge electrical faults and provide a proper reference point for electrical voltage. If the resistance is too high, the grounding system may not perform adequately, leading to safety hazards and potential damage to the pipeline infrastructure.

The chosen range reflects established industry standards for effective grounding performance, which is crucial for protecting both personnel and equipment in a pipeline environment.