The Safe Working Load of wire rope used in slings is based on a safety factor of what to 1?

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Multiple Choice

The Safe Working Load of wire rope used in slings is based on a safety factor of what to 1?

Explanation:
The main idea is that the Safe Working Load (SWL) is a conservative portion of the rope’s strength set to protect against overloads. For wire rope slings, the standard safety margin used is five to one. That means you divide the rope’s minimum breaking strength by 5 to get the Safe Working Load. This 5:1 factor accounts for wear, abrasion, bending fatigue, misalignment, and potential dynamic shocks during lifting, ensuring you don’t push the system toward failure in normal use. For example, if the rope’s breaking strength is 25,000 pounds, the SWL would be 5,000 pounds.

The main idea is that the Safe Working Load (SWL) is a conservative portion of the rope’s strength set to protect against overloads. For wire rope slings, the standard safety margin used is five to one. That means you divide the rope’s minimum breaking strength by 5 to get the Safe Working Load. This 5:1 factor accounts for wear, abrasion, bending fatigue, misalignment, and potential dynamic shocks during lifting, ensuring you don’t push the system toward failure in normal use. For example, if the rope’s breaking strength is 25,000 pounds, the SWL would be 5,000 pounds.

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