1. Manufacture of optical cable:

The manufacturing process of optical cable is generally divided into the following processes:

1. Screening of optical fibers: select optical fibers with excellent transmission characteristics and qualified tension.

2. Optical fiber dyeing: use standard full chromatogram to identify, requiring high temperature not fading and not migrating.

3. Secondary extrusion: Use plastic with high elastic modulus and low linear expansion coefficient to extrude into a certain size tube, incorporate the optical fiber and fill it with moisture-proof and waterproof gel, and store it for a few days (not less than two days) .

4. Optical cable twisting: twist several extruded optical fibers and strengthening units together.

5. Squeeze the outer sheath of the optical cable: add a layer of sheath to the stranded optical cable.

Second, the types of optical cables:

1. According to the laying method, there are: self-supporting overhead optical cable, pipeline optical cable, armored buried optical cable and submarine optical cable.

2. According to the optical cable structure, it is divided into: bundled optical cable, layered optical cable, tightly hugging optical cable, ribbon optical cable, non-metallic optical cable and branchable optical cable.

3. According to the use, it is divided into: optical cable for long-distance communication, short-distance outdoor optical cable, hybrid optical cable and optical cable for building.

3. Construction of optical cable:

Outdoor construction of optical cable:

The most important thing for long-distance fiber optic cable laying is to choose a suitable path. The shortest path is not necessarily the best, but also pay attention to the right to use the land, the possibility of erection or burial, etc. There must be very complete design and construction drawings for convenient and reliable construction and future inspections. During construction, be careful not to put the optical cable under heavy pressure or be punctured by hard objects.