What Are The Main Types Of Fiber Optic Cable Fittings?

Optical cable accessories are crucial components for ensuring safe installation and long-term stable operation. The following is a classification and functional description of the main accessories:
I. Installation and Fixing Accessories
Tension Clamps
Function: Used at the terminal or corner poles of the optical cable to bear the tension of the cable and fix its position. 
Types: Pre-formed tension clamps (fixed by winding pre-formed wires), wedge-type tension clamps. 
suspension clamp for lt ab cable Function: Used for straight-line towers or intermediate support points, allowing optical cables to swing freely under wind or temperature changes, reducing mechanical stress. 
Features: Usually uses a rubber pad to protect the outer layer of the optical cable.
II. Vibration Damping and Protection Accessories
Vibration Dampers (Spiral Dampers)
Function: Wrapped around the surface of the optical cable, reducing micro-vibrations through aerodynamic damping, preventing long-term fatigue damage. 
Vibration Dampers (Stockbridge Dampers)
Function: Installed on both sides of the optical cable, using mass blocks and elastic elements to absorb vibration energy, suitable for large spans or high wind speed areas.
III. Splicing and Protection Accessories
Splice Closure
Function: Protects the optical cable splicing point, providing waterproof, moisture-proof, tensile, and mechanical protection. Available in straight-through and branching types. 
Cable Storage Rack
Function: Used to fix redundant optical cables near the splice closure, usually a foldable bracket for easy maintenance.
IV. Auxiliary Installation Accessories
Downlead Clamps
Function: Used to fix the optical cable when leading it down from the pole to the equipment, preventing the cable from swinging due to gravity or wind. 
Clamps and Brackets
Function: Used to fix the accessories to the pole or support, usually made of stainless steel for corrosion resistance. 
Warning Devices
Function: Such as reflective signs or warning balls, to improve the visibility of the optical cable in complex environments and prevent external damage.
V. Special Scene Accessories
Crossing Brackets
Function: Used in large span scenarios such as roads and rivers to enhance the support strength of the optical cable. 
Lightning Protection Devices
Function: Some designs may include discharge gaps or surge arresters to reduce the impact of lightning strikes on all-dielectric optical cables. Selection and Considerations:
Environmental Adaptation: Select the vibration damping solution based on wind speed, terrain, and span length (e.g., enhanced vibration damping measures are required in high wind speed areas). 
Material Requirements: Fittings must be corrosion-resistant (e.g., aluminum alloy, stainless steel) to avoid electrochemical reactions with the outer sheath (usually AT/PE material). 
Standard Compliance: Follow international (IEC) or domestic (DL/T) standards to ensure compatibility and reliability.
By properly selecting fittings, the service life of the optical cable can be effectively extended and the stability of the communication network can be ensured. In actual engineering projects, targeted configurations should be made based on design parameters and site conditions.