Why is copper commonly used for grounding conductors?

Copper is commonly used for grounding conductors primarily due to its excellent conductivity and corrosion resistance. Conductivity is crucial for grounding systems as it ensures that any stray electrical currents can be safely directed into the ground, minimizing the risk of electrical shock or fire hazards. Copper's high conductivity means that it can effectively carry away fault currents, making it a reliable choice for grounding applications.

Corrosion resistance is equally important since grounding conductors are often buried or exposed to various environmental conditions that can lead to degradation over time. Copper's ability to resist corrosion helps maintain the integrity and effectiveness of the grounding system over its lifespan, reducing the risk of failures that could compromise safety.

While factors like weight, cost, and ease of installation might seem relevant in some contexts, they do not outweigh the critical properties of conductivity and corrosion resistance that make copper the preferred material for grounding applications.