When multiple rod, pipe, or plate electrodes are installed, what is the minimum distance they must be apart?

When multiple rod, pipe, or plate electrodes are installed, they must be spaced apart by a minimum distance of 6 feet to ensure effective grounding. This requirement is based on the principles of grounding and bonding as outlined in the National Electrical Code (NEC). The spacing is crucial for maintaining the functionality of each electrode as an independent grounding source.

If the electrodes are spaced too closely, it could lead to interactions between them that diminish their effectiveness in dissipating electrical currents into the ground. Proper spacing helps to optimize the grounding system's performance, enhancing safety and reliability in preventing electrical hazards. Therefore, maintaining at least 6 feet between electrodes allows each one to operate independently without interference, thus ensuring better overall grounding performance.