When a grounded conductor is used for grounding in a separate building supply situation, what must be considered regarding its size?

Prepare for the Grounding II Exam with flashcards, multiple choice questions, and detailed explanations for every question. Ace your test with confidence!

In the context of grounding conductors in separate building supply situations, the size of the grounded conductor is critical for safety and compliance with electrical codes. The correct answer emphasizes that the grounding conductor's size must not be smaller than the larger of specified options, which are typically determined by the National Electrical Code (NEC) or local electrical codes.

This means that there are minimum size requirements intended to ensure that the grounding system can safely handle fault currents without overheating or failing. These requirements take into account factors such as the current-carrying capacity, the length of the grounding conductor, and its installation environment. By adhering to these specifications, you ensure that the grounding system is effective in preventing electrical shock hazards and provides a reliable means of fault current return.

In contrast, other options imply a lack of adherence to safety standards or suggest sizes that are either inadequate or arbitrary, which would not provide the necessary protection in the event of a fault condition. Therefore, specifying that the conductor must not be smaller than defined limits is an essential consideration for safety and code compliance in electrical installations.

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