What requirements apply to electrical systems over 1,000 volts when grounded?

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When dealing with electrical systems over 1,000 volts that are grounded, the requirements outlined in Article 250 of the National Electrical Code (NEC) are particularly important. Article 250 covers grounding and bonding, detailing how to properly ground electrical systems to ensure safety and reduce the risk of electrical hazards.

Grounding large electrical systems helps dissipate fault currents safely, minimizes the risk of electrical shock, and protects equipment from electrical surges. By adhering to the guidelines set forth in Article 250, one ensures compliance with national safety standards, which are crucial when working with high voltage systems.

Local codes and industry standards may provide additional guidance, but they often build on the foundational requirements established by the NEC. Therefore, while local adaptations can vary, the core requirements for grounding these high-voltage systems are derived from Article 250. This makes it essential for safety and regulatory compliance in electrical installations.

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