The selection of grounding materials needs to be comprehensively judged based on the specific application scenario, environmental conditions, and regulatory requirements. Below are the applicable scenarios and key points for selection of different materials:
1.Copper-plated grounding rod
Advantages: Combining the conductivity of copper with the strength of steel, its corrosion resistance is superior to galvanized steel, and its lifespan can reach over 40 years, suitable for lightning protection grounding.
Applicable scenarios: Lightning protection grounding, highly corrosive soil environments.
2. Galvanized steel wire
Advantages: Low cost, high strength, suitable for general soil environments.
Limitations: Prone to corrosion, lifespan approximately 10 years, requires regular maintenance (resistance measurement every 6 years, excavation inspection every 8 years).
Applicable scenarios: Grounding projects in areas with limited budgets and non-highly corrosive areas.
3. Bare copper conductor
Advantages: Good conductivity, corrosion resistance, fast current discharge, high safety.
Limitations: Expensive, easily stolen, requires care to prevent bending. 2. Applicable Scenarios: Lightning protection or anti-static grounding with high safety requirements (such as substations, precision equipment).
4. Insulated Copper Wire
Advantages: Insulation layer protection, protection against electric shock, suitable for indoor or humid environments.
Applicable Scenarios: Indoor lightning protection grounding, anti-static grounding (such as household appliances, computers).
