A span guy is defined as a

• A. A pole used as a brace
• B. A guy wire attached to the top of one pole and the bottom of the next pole
• C. A guy wire attached to a pole with energized conductors and to another pole with energized conductors
• D. A guy wire used for clearance over a sidewalk

Answer: (C)

A span guy is a guy wire that runs between two poles to stabilize the span between them, with attachments at the tops of both poles that carry energized conductors. This setup keeps the line straight and able to resist wind and tension over the distance between supports, and it specifically involves poles that have energized conductors on both ends. That makes it different from a brace (which is used to brace a pole itself rather than span between poles) and from a clearance device placed for pedestrians (which is about keeping structures clear, not stabilizing a live span). In short, the defining feature is the span-to-span connection between two energized poles, which is why this option best describes a span guy.