The structure of the optical cable is to insert single-mode or multi-mode optical fibers into a loose tube made of high modulus plastic with water-blocking yarn in a fully dry type and filled with water-blocking material, and place it at the center of the cable Around the loose tube, water-blocking reinforcing yarn (such as glass yarn, aramid yarn and other non-metallic yarn materials, etc.) is placed, and then a polyethylene (or other plastics or flame-retardant plastics, etc.) sheath is extruded and wrapped. At the same time, steel strands or single round steel wire suspension wires are added to form the cable.

self-supporting, overhead, etc.

It is suitable for long-distance communication and inter-office communication, etc., and can also be used to solve the wiring problem of the last 1 kilometer of the FTTX entry section.

YD/T 1155-2011 "8" shaped self-supporting optical cable for communication, reference YD/T 1999-2021 light self-supporting outdoor optical cable for communication.

1. Reasonable design and precise control of the excess length of optical fibers in the loose tube endow the optical cable with excellent mechanical and environmental performance;
2. The optical cable has a compact structure. Reinforcing materials and water-blocking materials are added between the loose tube and the sheath, which not only ensures the moisture-proof, water-blocking and superior tensile strength of the optical cable, but also guarantees that the return of the loose tube is small after the optical cable is laid.
3. The optical cable has excellent flexibility and resistance to bending.
4. Round rod steel wire or steel strand has extremely high tensile strength, which is convenient for self-supporting overhead laying.
5. The cross-section of the optical cable adopts a fully dry water-blocking method, which is free from grease pollution and environmentally friendly. The optical cable itself is lightweight, has a simple structure and is widely used.