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) Dyeing of optical fibers: 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 tube of a certain size, 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) after Z. ).

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

5) Outer sheath of extruded optical cable: add a layer of sheath to the twisted optical cable.

2. Types of optical cables:

Aerial 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.

1) According to the laying method: self-supporting