How must sensitive electronic equipment be grounded according to NEC requirements?

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Sensitive electronic equipment must be grounded using an Equipment Grounding Conductor (EGC) run with the supply circuit conductors in accordance with National Electrical Code (NEC) requirements. This method ensures that the ground system provides a low-resistance path for fault currents and minimizes electromagnetic interference, which is crucial for the reliable operation of sensitive electronic devices. The EGC, when properly connected, helps protect both the equipment and personnel from electrical faults by ensuring that stray currents are safely directed to ground.

Utilizing an EGC is essential for maintaining system integrity and performance, as it allows for proper operation of safety devices like circuit breakers or fuses, which can quickly disconnect the power in the event of a fault. This approach also helps to shield the equipment from voltage surges and transients, which can be harmful to sensitive electronics.

Other grounding methods, such as using ground rods or isolated transformers, do not provide the direct connection needed for effective grounding of sensitive electronic equipment. The neutral ground configuration, while important in some contexts, does not specifically address the needs of sensitive equipment in the same way that an EGC does, as it may introduce noise and potential return path issues which could affect the operation of electronic devices.

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