The correct answer indicates that if two broken wires are found at the end connection of a standing rope, it is necessary to replace the rope. This guideline is established in safety and maintenance standards to ensure the integrity and reliability of crane operations.
When a standing rope, such as a hoisting line or suspension cable, shows signs of wear or damage, the condition of its wires is critical for safe operation. The end connections of ropes are particularly vulnerable to wear since they experience significant bending and stress during use. Finding two broken wires at this location suggests that the structural integrity of the rope is compromised, which could lead to unexpected failure during lifting operations.
By enforcing a replacement requirement after the discovery of two broken wires, safety standards help prevent accidents related to rope failure, thus ensuring the safety of operatives and the stability of lifted loads. Having a more lenient threshold, such as allowing more broken wires, would increase the risk and could potentially lead to catastrophic failures during hoisting tasks.