Suspension wires and kits are used to securely support optical cables, such as OPGW or fiber optic cables, while minimizing stress and maintaining cable integrity.

Types of Suspension Systems

Mechanical Suspensions: These are lightweight assemblies designed to support optical ground wire (OPGW) across spans and line angles. They handle vertical, transverse, and longitudinal loads without damaging the cable or affecting optical performance. Breakaway bolts ensure proper torque during installation, eliminating the need for specialized tools, and the system allows fast, cost-effective deployment (AFL Mechanical Suspension) . Double Layer Formed Wire Suspensions: Suitable for OPGW cables, these suspensions can be configured as single or double layers. They provide robust support for long spans and are designed to distribute loads evenly across the cable, reducing stress on the fibers . FIBERLIGN® Suspensions: These use structural reinforcing rods, outer rods, housing halves, and resilient inserts to reduce compression, clamping, and bending stresses on the cable. While some components are reusable, rods typically are not, ensuring optimal protection for the optical fibers . Suspension Sets: Standard suspension sets include shackles, twisted or eye chain links, armour grip suspension clamps, parallel groove clamps, and earthing connectors. These components allow secure attachment to poles or towers while providing grounding and mechanical stability . Wire Suspension Kits for Indoor or Non-OPGW Applications: For lighter applications, such as suspending fiber optic cables indoors or in trade show setups, wire suspension kits include ceiling brackets, wire ropes, and cable grippers. These kits are adjustable, easy to install, and can support single or multiple cables .

Installation Considerations

• Load Distribution: Ensure the suspension system can handle vertical, transverse, and longitudinal loads without overstressing the cable.
• Cable Protection: Use clamps and inserts that minimize compression and bending to prevent fiber damage.
• Span Length and Angle: Select single or double suspensions based on span length and line angle changes.
• Reusability: Some hardware components can be reused if in good condition, but structural rods often cannot.
• Grounding: For OPGW, include earthing connectors to maintain electrical safety.
• Ease of Installation: Systems with breakaway bolts or pre-assembled kits reduce installation time and the need for specialized tools.

Summary

Choosing the right suspension wire or kit depends on the cable type, span length, environmental conditions, and load requirements. Mechanical suspensions and double layer wire systems are ideal for outdoor OPGW installations, while wire suspension kits are suitable for indoor or lighter applications. Proper installation ensures cable integrity, optical performance, and long-term reliability.