The butterfly-shaped optical cable is fixed on the pole

Butterfly-shaped optical cables are typically fixed on poles using specialized clamps or brackets that secure the cable without damaging its structure. Cable Structure and ConsiderationsButterfly-shaped optical cables have a flat, symmetrical design with two parallel fiber ribbons at the center, often enclosed in a butterfly-shaped sheath with reinforcing members and an outer protective layer. This design allows for compact installation, flexibility, and improved mechanical performance, including resistance to compression, impact, and bending.

When fixing the cable on a pole, it is crucial to avoid excessive bending, twisting, or pinching, as these can damage the fibers and increase signal attenuation.

Hardware for Pole Installation

To secure butterfly-shaped optical cables on poles, the following hardware is commonly used: Galvanized Steel Bracket or Clamp Hooks: These are designed for FTTH applications and can be used with steel belts to attach the cable to poles. They are typically made of carbon steel and sized to accommodate 12–20mm steel belts, providing a stable and durable attachment.

Clamp Hooks and C-

Type Hooks: These hold the cable in place while allowing for slight movement to prevent stress on the fibers.

S-

Type Fixing Parts and Splint Hooks: These accessories help maintain the cable's position along the pole and prevent sagging or lateral movement.

Installation Guidelines

Positioning: Place the butterfly-shaped cable along the pole at the desired height, ensuring it follows a straight path without sharp bends. Securing: Use the appropriate clamp or bracket to attach the cable. For galvanized steel clamps, the cable is typically fixed using a steel belt threaded through the clamp and tightened to hold the cable securely.

Bend Radius: Maintain the minimum bend radius specified by the cable manufacturer to prevent fiber damage. Avoiding Stress: Ensure the cable is not twisted, pinched, or subjected to excessive tension during installation. Expansion and Maintenance: Butterfly-shaped cables are designed for easy expansion and maintenance.

Using pigtail splicing or fusion splicing allows for low-loss connections when extending or connecting the cable to network equipment.

Summary

Fixing a butterfly-shaped optical cable on a pole involves using specialized clamps or brackets that secure the cable while preserving its mechanical integrity. Proper handling, adherence to bend radius limits, and careful attachment prevent fiber damage and ensure reliable data transmission. Accessories like galvanized steel clamps, S-type hooks, and C-type hooks are commonly used for this purpose.