The core of the GYXTC8Y optical cable is a single bundle tube without twist, which is laid in parallel with the reinforcement of the optical cable, and the core and the suspension line are in the figure 8. From the structural characteristics, it can be seen that the optical fiber has no structural surplus length, and the surplus length of the optical fiber in the optical cable is equal to the surplus length of the optical fiber in the optical fiber bundle tube, which is similar to the central bundle tube optical cable. The structure of the optical cable is shown in Figure 8. High strength galvanized steel wire is used as suspension wire to form the main tension element of the optical cable; PBT oil filled loose tube and full chromatographic optical fiber are used; steel plastic composite belt with light armor and polyethylene sheath are used to form steel plastic bonded comprehensive sheath; water blocking materials are filled between the cable cores to realize full section water blocking cable.
The core is compact in structure, light in weight, small in size, convenient for construction and maintenance, and low in manufacturing cost, which can effectively reduce the investment cost for users.