Fiber optic cables are designed in such a way that the optical fiber has, related to the cable, excess length. The overlength protects the fiber in the event of bending stress or tension on the cable. Current legal documents describe the areas of application of fiber optic cables, requirements for their resistance to mechanical and climatic load, as well as requirements for the electrical characteristics of optical cables with metal structural elements. - A redline version. This test method applies to optical fibre cables which are tested at a particular tensile strength in order to examine the behaviour of the attenuation and/or the fibre elongation strain as a function of the load on a cable which may occur during installation and operation. This method is intended. The high-tensile modulus of DuPont™Kevlar®offers excellent dimensional stability and low strain under stress to reduce sag droop and maintain stability in challenging environments like rivers or between hilltops. Methods are included for both non-bonded and bonded jackets. Manufacturers specify maximum allowable elongation thresholds for each cable type.
