_____ is the minimum size grounds used for transmission.

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Multiple Choice

_____ is the minimum size grounds used for transmission.

Explanation:
Sizing the grounding path for transmission circuits centers on carrying fault current safely long enough for protective devices to clear the fault. The smallest conductor that meets that requirement is 2/0 AWG. This size provides enough cross-sectional area and mechanical strength to handle typical fault currents and environmental conditions without overheating, while keeping costs reasonable. A smaller size, like #2, would risk overheating under fault conditions. A larger size, such as 4/0 or 6/0, would still work but isn’t the minimum needed.

Sizing the grounding path for transmission circuits centers on carrying fault current safely long enough for protective devices to clear the fault. The smallest conductor that meets that requirement is 2/0 AWG. This size provides enough cross-sectional area and mechanical strength to handle typical fault currents and environmental conditions without overheating, while keeping costs reasonable. A smaller size, like #2, would risk overheating under fault conditions. A larger size, such as 4/0 or 6/0, would still work but isn’t the minimum needed.

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