A ground rod, as the name suggests, is a rod utilized primarily for grounding purposes. Its special role is to safeguard electrical devices from lightning currents and static electricity, which arise from an imbalance of electric charges within or on the surface of a material or between materials.
Ground rods primarily come in three main materials: copper, stainless steel, and galvanized steel. Among these, copper is the most popular, known for its longevity despite being relatively expensive. If you’re seeking a more cost-effective option, stainless steel ground rods are a viable choice. They offer good corrosion resistance and are preferred in salty environments, although their lifespan is shorter compared to copper. On the other hand, galvanized steel ground rods are the least utilized due to their shorter lifespan and susceptibility to corrosion, but they are the most budget-friendly option available.”