What should grounding electrodes be installed in accordance with?

Grounding electrodes are essential for ensuring electrical safety and preventing shock hazards. The installation of grounding electrodes must be done in accordance with the National Electrical Code (NEC) requirements. This code sets the standards for electrical installations in the United States, ensuring they are safe and reliable.

The NEC provides detailed specifications concerning the types of grounding electrodes, their required sizes, materials, and installation procedures. This helps maintain consistent safety practices across different regions and helps to prevent potential electrical hazards that could arise from improper grounding. By adhering to these national standards, professionals ensure that electrical systems are adequately protected against faults, lightning strikes, and other disturbances.

While local municipal codes and manufacturer's specifications and guidelines may also have relevant requirements, they typically build upon or complement the foundational standards set by the NEC. In many cases, local codes must be at least as stringent as the NEC, but when there’s a conflict, following the NEC is usually the safest approach to ensure compliance and safety.