What safety device is used to prevent a crane from tipping over?

A stability system, which includes outriggers, plays a crucial role in ensuring a crane's safe operation by preventing it from tipping over. Outriggers extend from the sides of the crane, increasing its base of support and distributing the load's weight more evenly to the ground. This expanded base helps counteract the forces that could cause the crane to tip, especially during heavy lifts or when operating on uneven terrain.

Having a stability system is essential when operating cranes, particularly those with substantial lifting capacities. It is designed to enhance the crane's stability, ensuring that the center of gravity remains within an acceptable range while the crane is in use. Proper deployment of outriggers and adherence to stability guidelines can significantly reduce the risk of accidents related to tipping.

Other devices listed, such as a lifting hook, safety net, and boom angle indicator, do not directly address the fundamental issue of stability in lifting operations. While they serve important functions in their respective contexts—like securing loads or providing information about the boom's position—they do not contribute to preventing a crane from tipping over. This underscores the critical importance of stability systems and their proper use in crane operation.