The cleaver will leave about 1. 5cm of bare fiber on each cable -> the 6cm shrink sleeve will cover about 3cm of bare fiber and 3cm of inner jacket. For the period of the sleeve installation an installation tent must be erected. Even if cable and drum look very strong, there are certain rules to follow to avoid. The Fiber Optic Association, Inc. The charter of the FOA was to promote professionalism in fiber optics through education, certification, and. Installing a fiber optic cable protection sleeve is a precision task that directly affects the reliability and lifespan of an optical fiber system. Single-mode fiber core diameters are generally 9 µm. Hence, the number of light reflections that. On long runs, use proper lubricants and make sure they are compatible with the cable jacket.