Employ a fiber optic stripper to carefully expose the fiber tube inside, removing any protective sheath. Wipe the stripped fiber with alcohol and lint-free wipes to ensure no contaminants interfere. Before repairing a damaged fiber optic cable, prepare the right fiber optic repair tools to ensure accurate fault location, efficient operation, and reliable repair. Once these tools are ready, you can start the repair step by step. Understanding the visual signs of fiber damage, knowing how to test them, and applying proper maintenance. 1.