Fiber optic cable and splice plate fixing method

Proper fiber optic cable and splice plate fixing ensures low signal loss, secure splices, and long-term network reliability.Fiber Optic Cable Splicing OverviewFiber optic splicing is the process of permanently joining two optical fibers end-to-end to maintain uninterrupted light transmission. There are two main methods: fusion splicing, which melts fiber ends together for minimal loss and high durability, and mechanical splicing, which aligns fibers using a sleeve for faster installation but slightly higher loss . Splicing is typically performed inside a fiber enclosure or splice closure to protect fibers and manage excess cable length .Fixing Fiber Cables in Splice ClosuresCable Preparation: Remove the outer jacket, shielding, and armor to expose the fiber tubes. Clean and abrade the cable surface to ensure proper sealing .Sealing and Securing: Use sealing rings or gaskets that match the cable diameter. Wrap self-adhesive sealing tape if required, then insert the cable into the closure and secure it with a hose clamp or metal hoop .Armored Layer and Steel Core Fixing: For armored cables, fix the steel core and armor separately using squashes or compressed blocks. Tighten bolts or nuts to achieve a secure seal .Grounding: If the cable has a steel core or armored layer, connect it to a grounding point using a copper insert in the closure .Splice Plate or Tray FixingTray Placement: Insert the spliced fibers into the splice tray slots, coiling any excess fiber neatly to prevent bending or stress .Tray Stacking: If multiple trays are used, stack them securely, fastening adjacent trays together to maintain organization and accessibility for maintenance .Closure Lid: Place the lid over the trays and lock it in position. Use nylon ties or padlocks to secure the closure and prevent accidental opening .Cable Entry Management: Use plastic gaskets or liners at the cable entry points to maintain sealing and prevent fiber movement .Best PracticesAvoid sharp bends; maintain the minimum bend radius specified by the manufacturer.Label fibers and trays for easy identification during maintenance.Ensure all mechanical fasteners are tightened but not over-torqued to avoid damaging the cable or fibers.Perform splicing in a clean environment to prevent contamination and signal loss . By following these steps, fiber optic cables and splice plates are securely fixed, ensuring low insertion loss, long-term stability, and easy maintenance of the network.