"OPGW protection rods" and "armor rods" are essential "OPGW Installation Accessories" designed to safeguard the cable at its attachment points:

• Protection Rods (Helical Rods): These are pre-formed helical rods wrapped around the OPGW at suspension points (e.g., within suspension clamps or at the entrance to OHTLstringingequipment.com/Stringing-Blocks--Sheaves.html target='_blank'>Stringing Blocks). Their primary function is to increase the bending radius of the OPGW, distribute clamping forces over a wider area, and prevent localized stress concentrations, abrasion, and fatigue damage caused by vibration or dynamic loads.

• Armor Rods: Similar to protection rods but often thicker and used at dead-end or tension points. They provide superior protection against abrasion, crushing, and bending fatigue at the point where the OPGW is under constant tension.

Both types of rods are indispensable as they extend the mechanical lifespan of the OPGW, prevent damage to the outer strands, and, crucially, protect the delicate internal optical fibers from stress and micro-bending, ensuring uninterrupted communication.