Fiber Optic Cable Stripping and Sheathing

Fiber optic cable sheath stripping involves carefully removing the outer jacket and protective layers using specialized tools to expose the fiber without causing damage.Key PrinciplesProper stripping is critical because any nick or scratch on the fiber can weaken it, potentially leading to cracks or signal loss under stress or thermal cycling . Each layer of a multi-layer cable must be stripped individually and progressively, as different layers often require different lengths and techniques .Common ToolsFiber Optic Cable Strippers: Adjustable strippers allow precise removal of the outer jacket and buffer coatings. The blade depth should be set according to the cable diameter to avoid cutting the fiber .Three-Hole Optical Fiber Cutting Scissors: These are used for stripping 125 µm optical fiber and 250 µm cladding, as well as the outer sheath of pigtails, without damaging the fiber .Armored Cable Slitters: For armored or corrugated cables, specialized slitting tools can perform longitudinal or circumferential cuts to remove the polyethylene sheath and armor in one pass .Optical Fiber Cleavers and Inspection Microscopes: After stripping, cleavers create a clean, perpendicular end face, and microscopes or visual fault locators (VFLs) ensure the fiber is defect-free .Step-by-Step Stripping ProcedurePrepare the Work Area: Ensure a clean, well-lit environment free of dust and debris .Measure and Mark: Determine the required strip length for the connector or installation hardware.Remove Outer Jacket: Use a fiber optic cable stripper or slitter, adjusting the blade depth to match the cable diameter. Rotate the tool around the cable if necessary to cut evenly .Remove Inner Layers: Strip buffer coatings or strength members individually, taking care not to nick the fiber .Clean the Fiber: Use alcohol wipes or a cleaning solution to remove debris and residue from the stripped fiber end .Inspect and Cleave: Use a cleaver to create a smooth, perpendicular end face and inspect with a microscope or VFL to ensure no defects .Repeat for Multiple Fibers: If working with multi-fiber cables, repeat the process for each fiber individually, maintaining consistency and precision .Safety ConsiderationsAlways wear eye protection when handling fibers, as broken glass fibers can cause injury .Avoid excessive pulling, bending, or crushing of the cable, which can damage the fiber and affect transmission .Follow the minimum bend radius and pulling force specifications provided by the cable manufacturer .Best PracticesStrip cables progressively, layer by layer, rather than attempting to remove all layers at once .Use properly calibrated tools to prevent fiber damage.Maintain a clean workspace to avoid contamination of the fiber end, which can degrade signal quality .For armored or specialty cables, use appropriate slitting tools to handle strength members and armor without damaging the fiber . By following these methods and using the correct tools, fiber optic cable sheath stripping can be performed safely and efficiently, ensuring optimal performance and longevity of the fiber network.