This guide covers the essential tools and step-by-step procedures for low-loss fiber optic cable repair. Fiber optic cable is surprisingly strong, durable and pliable; however, several best practices should be followed to ensure a successful cable installation. Most fiber optic cables boast a pull strength of 100 – 200. Incorrect, that is a fiber connector someone put on fiber from a spool, not a prefab jumper. You can't even upload a fiber jack picture to close the job if that was the jumper. They are easily absorbed through the eyes, lungs and skin. Once this happens, our bodies have no way of removing them. Construction Activities: Accidental damage during construction.