What is used in outside plant (OSP) fiber optic cable to provide protection and isolation?

The use of strength members and buffer tubes in outside plant (OSP) fiber optic cable is crucial for providing protection and isolation. Strength members are typically made from materials like aramid fiber or steel, which give the cable structural integrity and resistance to tensile stress. This is particularly important in outdoor environments where cables may be subjected to various mechanical stresses, including wind, ice, and potential impacts.

Buffer tubes, on the other hand, are designed to provide additional protection to the optical fibers themselves. They serve as individual protective sleeves for the fibers within the cable, helping to isolate them from each other and from environmental factors such as moisture or physical abrasion. The buffer tubes also facilitate the distribution and organization of the fibers as they are deployed in the network.

Together, these components ensure that the fibers remain intact and operate efficiently over extended periods, vital for maintaining the integrity and performance of the fiber optic system in outdoor settings.