Selecting the correct "OPGW suspension clamps" and "dead-end clamps" is critical for mechanical support and optical fiber protection:

• OPGW Suspension Clamps: These are designed for tangent and light-angle supports. Key considerations include:

  • Gentle Grip: Must distribute clamping pressure evenly over the OPGW's surface to avoid crushing the optical core. Often include elastomer inserts or incorporate protection rods.

  • Freedom of Movement: Should allow for limited longitudinal movement and rotation to prevent stress concentration from wind or temperature changes.

  • Large Radius: Designs that ensure the OPGW is never bent below its minimum bending radius.

• OPGW Dead-End Clamps: Used at tension towers or termination points to securely grip the OPGW under full mechanical tension. Key considerations include:

  • Full Tension Capability: Must be capable of holding the OPGW's rated breaking strength (RBS) without slippage.

  • Fiber Protection: Designs, such as pre-formed helical dead-ends or specific compression types, ensure the tensile force is applied to the metallic components of the OPGW while protecting the optical fibers from excessive stress.

  • Material Compatibility: Chosen to prevent galvanic corrosion between the clamp and the OPGW's outer strands.

Proper selection, often based on OPGW type, diameter, and line tension, is paramount to ensure both mechanical integrity and the uninterrupted optical performance of the OPGW.