Stripping of Multiple Optical Cable Splices

Stripping multiple optical cable splices requires progressive, careful removal of coatings using precision tools to avoid fiber damage and ensure high-quality splices.Key Principles for Stripping Multiple FibersWhen working with multi-fiber cables, each layer of the cable must be stripped individually and progressively, as different layers often require different strip lengths and techniques . Attempting to strip all layers at once can damage the fibers and compromise splice quality. Proper stripping ensures that the bare glass is exposed cleanly for fusion or mechanical splicing, minimizing light loss and back reflection .Tools and TechniquesHandheld Fiber Strippers: Precision mechanical strippers are commonly used for standard telecommunication fibers (125 µm glass with 250 µm coating). They remove coatings cleanly over a defined length, typically 30–40 mm, without nicking the fiber . For multi-layer cables, strippers with adjustable lengths or specialized holes for different fiber diameters are recommended.Thermal or Heated Strippers: Tools like the AFL Precision Strip use a heating element to soften the coating, allowing low-force stripping with minimal risk of fiber damage. These are especially useful in field applications where speed and consistency are important .Automated or Battery-Powered Strippers: For high-volume or repetitive stripping, automated strippers provide consistent results and reduce operator fatigue. They are suitable for multi-fiber splices where uniformity is critical .Cleaning and Inspection: After stripping, fibers should be cleaned with lint-free wipes and high-purity alcohol or dedicated fiber cleaners to remove any residue . Inspect the stripped fiber under a microscope to check for scratches or nicks.Best PracticesProgressive Stripping: Remove coatings layer by layer, especially in cables with multiple protective layers, to prevent accidental fiber damage .Bend Test: Perform a 45-degree bend test on stripped fibers to detect micro-cracks or nicks. If the fiber breaks, re-strip the section before splicing .Tool Maintenance: Replace dull blades or worn strippers promptly. Dull tools can bend or stress fibers, leading to future splice failures .Strip Length Control: Avoid stripping more than ~50 mm at a time to reduce the risk of fiber breakage .Use Appropriate Strippers: Match the stripper type to the fiber coating material (acrylate, silicone, polyimide) and diameter. Some strippers can also handle tight buffers (900 µm) or larger cable jackets .SummaryStripping multiple optical cable splices is a delicate, stepwise process that requires the right tools, careful technique, and proper inspection. By progressively stripping each layer, using precision or heated strippers, and performing post-strip cleaning and inspection, technicians can ensure high-quality, low-loss splices and prevent costly field failures .