Outdoor Armored Optical Cable Stripping Wire

Stripping outdoor armored fiber optic cables requires specialized tools, careful layer-by-layer removal, and strict adherence to safety procedures to protect the inner fibers and maintain cable integrity.

Understanding Armored Fiber Optic Cables

Outdoor armored fiber optic cables are reinforced with metallic layers such as steel tape or corrugated aluminum, along with tensile-strength filaments like Kevlar, to protect against crushing, moisture, rodents, and environmental stress . These cables are heavier and stiffer than standard fiber, requiring careful handling and proper tools for stripping.

Tools and Preparation

• Armored wire strippers (e.g., 4–10mm & 8–28mm models) designed to limit blade penetration and avoid nicking buffer tubes .
• Rip cord pullers for safely removing rip cords through the sheath and steel armor .
• Safety equipment: gloves, safety glasses, and insulated tools to prevent injury from sharp armor edges .
• Inspect the cable for damage, confirm type (single-mode or multi-mode), and plan the routing path to avoid sharp bends or obstacles .

Step-by-Step Stripping Process

1. Secure the Cable: Place the cable on a stable surface or in a cable holder to prevent movement during stripping.
2. Remove the Outer Jacket: Use a dedicated armored wire stripper to cut the HDPE or PVC outer jacket. Adjust the blade depth to avoid cutting into the underlying armor or buffer tubes .
3. Expose the Armor Layer: Carefully slit the metallic armor (steel tape or corrugated aluminum) using the stripper or a rip cord puller. Avoid using utility knives or hacksaws, which can damage inner fibers .
4. Remove Tensile Reinforcement: Cut or pull back Kevlar yarns or other strength members. These filaments provide tensile strength but are vulnerable to nicks, so handle them gently .
5. Strip Buffer Tubes: Once the armor is removed, strip the buffer tubes to expose the optical fibers. This step must be done progressively, layer by layer, to prevent scratches or cracks in the fibers .
6. Clean and Inspect: After stripping, clean the fibers and inspect for any nicks or damage before proceeding to splicing or connectorization .

Safety and Best Practices

• Always wear safety glasses and gloves to protect against sharp armor edges .
• Avoid excessive force; armored cables are rigid and can snap if bent beyond their minimum radius .
• Use tools rated for outdoor conditions, especially in cold weather, to maintain precision and prevent tool malfunction .
• Dispose of used blades and armor scraps properly to prevent injury .

Summary

The key to successful outdoor armored cable stripping is using the right tools, stripping each layer progressively, and following strict safety protocols. Proper technique ensures the inner optical fibers remain intact, maintaining signal integrity and reducing costly field repairs .