Which cable component provides the primary pulling strength and protection against tensile stress?

• A. The Cable Strength Members
• B. Outer jacket
• C. Fiber
• D. Ripcord

Answer: (A)

The pulling strength and protection against tensile stress come from the strength members. These are the parts of the cable designed to take the load when you pull it, distributing that force along the length so the delicate fiber and other components aren’t strained or damaged. Materials like Kevlar aramid fibers or sometimes steel wires are used as strength members, providing the primary mechanical support. The outer jacket mainly protects against moisture, abrasion, and environmental factors, but it isn’t responsible for carrying tension. The fiber itself is the light-carrying core and isn’t relied on for structural strength, and a ripcord is there to help remove the jacket, not to bear load.