The best practice includes tension checks, buffer tube management, and regular lash-back tests to keep the cable stable. I want to provide a. Fiber optic cable manufacturing involves handling many delicate materials: filaments, ribbons, binder yarns, water-blocking tapes, strength members, films, and jackets. All of them must be unwound, guided, combined, wrapped, filled, or rewound under controlled tension. Preform Manufacturing The process begins with the creation of a preform, a cylindrical piece of glass. This preform is then heated and drawn into ultra-thin glass. Corning Cable Systems routinely specifies maximum span lengths, vice ruling span, for given sag and environmental conditions. It comes with our instruments to provide their parameter settings, to clearly display the production measurements as well as any detected defects, and to generate real-time parameters and record all. Ahstrai-t -This paper presents methods for the prediction and minimiza- tion of fiber optic cable pulling tension. Specialty products and installation procedures have been developed following field and laboratory researchon cable tension as the fiber optic cable is pulled into conduit.