Fiber Optic Cable and Steel Wire Fixing Method

Fiber optic cables are securely fixed using tension clamps, stainless steel bands, and mounting accessories to ensure stable, durable, and corrosion-resistant installations.

Tension Clamps for Fiber Optic Cables

Tension clamps are the primary devices used to anchor fiber optic cables, particularly ADSS (All-Dielectric Self-Supporting) cables and drop cables, at points of high mechanical stress such as terminal, angle, or dead-end poles. They bear the axial load of the cable, preventing slippage and mechanical failure under tension. Tension clamps are available in various designs, including stainless steel wire with reinforced nylon bodies, which provide durability, vibration resistance, and weatherproof performance.

Steel Wire and Stainless Steel Band Fixation

For pole-mounted installations, stainless steel bands are wrapped around the pole to secure the tension clamp. These bands are typically made of 201 stainless steel, offering high tensile strength and corrosion resistance. A stainless steel buckle locks the band tightly, ensuring a stable connection even under harsh weather conditions.

Hand-guided banding tools simplify installation by allowing technicians to tighten and cut the steel band on-site.

Installation Process

Position the Cable: Lay the fiber optic cable in the clamp shell or trough. Insert Wedge or Locking Mechanism: For compression-type clamps, insert the wedge to engage the cable securely without damaging the fiber or insulation. Secure the Clamp to the Pole: Wrap the stainless steel band around the pole and fasten it using the buckle.

Ensure the clamp is aligned properly to maintain cable tension and prevent sagging. Adjust Clearance: Pull the cable through the clamp until the proper clearance is achieved, then tighten the clamp fully to fix the cable in place.

Considerations for Material and Environment

Corrosion Resistance: Stainless steel components are preferred for outdoor installations exposed to UV, rain, or temperature fluctuations. Cable Compatibility: Ensure the clamp type matches the cable geometry (round, flat, or hybrid) to maintain long-term stability. Load Handling: Select clamps rated for the cable's tensile load, especially for long spans or high-wind areas.

Additional Accessories

Pole Bands and Mounting Hooks: Used to attach the clamp securely to wood, concrete, or metal poles. Drop Wire Brackets: Support one or two pairs of fiber drop wires, often used in FTTH installations. Hand Tools: Lightweight banding tools facilitate field installation and ensure proper tensioning.

Using these methods ensures that fiber optic cables remain secure, aligned, and protected, minimizing the risk of mechanical failure and signal degradation over time.