What do we call the equipment used to help guide pulling lines over structures?

The equipment referred to as "stringing blocks" is specifically designed to assist in guiding pulling lines over structures. This equipment typically features sheaves that are engineered to reduce friction and direct the pulling line accurately across various support points. By using stringing blocks, crews can effectively manage the tension within the line as it is pulled, which is crucial when navigating around obstacles or over long distances.

Stringing blocks are particularly important in operations like installing overhead power lines, where precise alignment and support are essential for the integrity of the installation. Their design allows for smooth movement and helps maintain the proper direction of the line, minimizing wear and ensuring safety.

While conductor rollers, pulleys, and support posts are also related to line management and tensioning, stringing blocks are the specific tools employed with a focus on guiding the lines over structures in an organized and controlled manner, making them the most suitable choice for this context.