What type of rope is recommended for lifelines exposed to cutting or abrasion?

Wire-core Manila rope is recommended for lifelines exposed to cutting or abrasion because it combines the inherent strength and flexibility of natural fibers with a wire core that provides added protection against wear and damage. This type of rope offers increased resistance to cutting and abrasions, making it particularly suitable for environments where it might encounter sharp edges or rough surfaces.

Natural fiber ropes, while traditional and having some level of elasticity and flexibility, do not possess the same durability and resistance to cutting and abrasion as the wire-core Manila rope. Polyester rope has excellent strength and resistance to UV degradation, but it may not provide the same level of protection against cutting as a wire-core rope. Nylon rope, known for its high strength and elasticity, is also less resistant to abrasion when compared to wire-core Manila rope. Thus, in scenarios where lifelines are likely to face cutting or abrasion, wire-core Manila rope stands out as the most appropriate choice.