Rotation resistant wire rope has a design factor of?

Rotation resistant wire rope has a design factor of?

• A. 3 to 1
• B. 4 to 1
• C. 5 to 1
• D. 6 to 1

Answer: (C)

Rotation resistant wire rope is designed to minimize rotation under load, which helps control the line during lifting and reduces wear. The design factor is the safety margin between the rope’s breaking strength and the working load. For this type of rope, the standard practice is to set the working load at one-fifth of the minimum breaking force, giving a design factor of five to one. This balance accommodates dynamic/ shock loads while preserving the anti-rotation characteristics. The other factors are associated with different rope types or standards and aren’t the typical specification for rotation resistant rope.

Rotation resistant wire rope is designed to minimize rotation under load, which helps control the line during lifting and reduces wear. The design factor is the safety margin between the rope’s breaking strength and the working load. For this type of rope, the standard practice is to set the working load at one-fifth of the minimum breaking force, giving a design factor of five to one. This balance accommodates dynamic/ shock loads while preserving the anti-rotation characteristics. The other factors are associated with different rope types or standards and aren’t the typical specification for rotation resistant rope.