Which method helps ensure a safe grounding system in areas with high soil resistivity?

Creating a safe grounding system in areas with high soil resistivity can be effectively achieved through multiple methods, which is why the correct choice encompasses all the listed options.

Using larger grounding conductors helps to reduce resistance in the grounding system. When the soil resistivity is high, it becomes essential to maximize the amount of contact area with the ground to facilitate a better electrical connection, and larger conductors provide lower resistance and therefore better grounding performance.

Creating multiple grounding electrodes is another effective approach in high resistivity soils. By installing several grounding electrodes, each one can contribute to the overall grounding effectiveness, helping to lower the total impedance of the grounding system. This arrangement allows for more paths for fault current to dissipate into the earth, thereby enhancing safety.

Applying chemical grounding compounds is a technique that can also be beneficial. These compounds are designed to improve conductivity of the soil surrounding the grounding electrodes. They can help reduce the resistivity of the soil significantly, which is crucial in areas where natural soil conditions may inhibit effective grounding.

Utilizing all these methods collectively provides the best strategy for ensuring a safe and effective grounding system, particularly in locations where high soil resistivity presents a challenge.