What is the purpose of the crane cable line being vertical to the panel surface and over the center of the panel?

• A. To allow for a balanced load.
• B. To minimize wind effect on the cable.
• C. To reduce operator visibility.
• D. To keep the line away from the lifting points.

Answer: (A)

Balancing the load is the main idea. When the crane cable line is vertical to the panel surface and passes over the panel’s center, the lifting force aligns with the panel’s center of gravity. This creates a pure lift with no net moment, so the panel stays stable and reduces the risk of tilting, twisting, or stressing the lifting points during the lift. If the line were off-center or angled, a side component of force would create a tipping moment that can cause rotation and damage. Wind and visibility aren’t the primary control factors here, and aiming the line away from the lifting points would undermine stability rather than help it.