Which of the following voltages has the smallest minimum safe distance during transit?

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Multiple Choice

Which of the following voltages has the smallest minimum safe distance during transit?

Explanation:
Safety distance from energized parts increases with voltage. The higher the voltage, the farther air can break down and an arc can jump, so more clearance is needed to prevent arcing or contact during transit. Among the options, four feet is the smallest gap, which corresponds to the lowest voltage in the set, so it has the smallest required clearance. The larger distances—six, ten, and sixteen feet—reflect higher voltages and therefore larger safe clearances. In practice, always follow site-specific clearance tables and err on the side of more space if there’s any doubt about line sag, equipment position, or potential contact.

Safety distance from energized parts increases with voltage. The higher the voltage, the farther air can break down and an arc can jump, so more clearance is needed to prevent arcing or contact during transit. Among the options, four feet is the smallest gap, which corresponds to the lowest voltage in the set, so it has the smallest required clearance. The larger distances—six, ten, and sixteen feet—reflect higher voltages and therefore larger safe clearances. In practice, always follow site-specific clearance tables and err on the side of more space if there’s any doubt about line sag, equipment position, or potential contact.

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