Introduction to the structure of Optical fiber cable

According to the state of the coated optical fiber cable in the optical fiber cable, the optical fiber cable has two types: tight structure and loose structure. Skeleton Optical fiber cable is a typical loose structure. Optical fiber cable is buried in the outer spiral groove of the skeleton and has room for movement. This Optical fiber cable has better properties of isolating external force and preventing microbend loss. The twisted optical fiber cable is a typical tight structure when using a tightly wrapped Optical fiber cable, and the coated Optical fiber cable is tightly wrapped in the cable structure, but when the twisted optical fiber cable uses a loosely wrapped Optical fiber cable, due to The Optical fiber cable can move in the secondary coated plastic tube, and it is still a loose structure. The cable-forming process of stranded optical fiber cable is relatively simple and has good performance. In addition, there are also structural types such as ribbon optical fiber cable and single-core optical fiber cable.

There are reinforcements in various Optical fiber cables to carry tension. It is made of high-strength materials with high elastic modulus, commonly used are steel wire, high-strength glass fiber and high-modulus synthetic fiber aramid. The reinforcements make the optical fiber cable produce only very low elongation deformation under the use stress, so as to protect the optical fiber cable from stress or only bear very low stress to prevent the optical fiber cable from breaking.

The sheath structure and material of Optical fiber cable depends on the usage environment and requirements, and is basically the same as the cable under the same usage conditions. According to the use environment of Optical fiber cable, there are overhead Optical fiber cable, direct buried Optical fiber cable, submarine Optical fiber cable, field Optical fiber cable, etc.