6-core outdoor single-mode optical fiber GYXTW4B1 9/125 outdoor armored single-mode optical cable

Description :

　　The passband of optical fiber is very wide Theoretically, it can reach 3 billion megahertz. 2. No relay segment length From tens to over 100 kilometers, the copper wire is only a few hundred meters long. 3. Not affected by electromagnetic fields and radiation. 4. Lightweight and compact in size. For example, a 900 pair twisted pair cable with a diameter of 3 inches and a weight of 8 tons/KM for 21000 voice channels, while a fiber optic cable with ten times the communication capacity has a diameter of 0.5 inches and a weight of 450P/KM. 5. Fiber optic communication is non electrified and safe to use in flammable and explosive environments. 6. Wide temperature range for use. 7. Chemical corrosion has a long service life.

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　　Manufacturing of optical cables

　　The manufacturing process of optical cables generally includes the following steps: 1. Fiber selection: Select fibers with excellent transmission characteristics and qualified tension. 2. Dyeing of optical fibers: Standard full spectrum chromatography should be used for identification, requiring no color fading or migration at high temperatures. 3. Secondary extrusion: Select plastic with high elastic modulus and low linear expansion coefficient to extrude into a certain size of tube, and insert the optical fiber into and fill it with moisture-proof and anti fiber optic cable

　　The gel of water shall be stored for several days (not less than two days). 4. Cable twisting: Twist several extruded optical fibers together with reinforcement units. 5. Squeezing the outer sheath of the optical cable: adding a layer of sheath to the twisted optical cable.

　　Types of optical cables

　　1. According to the laying method, there are self bearing overhead optical cables, pipeline optical cables, armored buried optical cables, and submarine optical cables. 2. According to the structure of optical cables, they can be divided into bundle tube optical cables, layer twisted optical cables, tight grip optical cables, ribbon optical cables, non-metallic optical cables, and branching optical cables. 3. Classified by purpose, there are long-distance communication optical cables, short distance outdoor optical cables, hybrid optical cables, and building internal optical cables.

　　Construction of optical cable

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• 6-core outdoor single-mode optical fiber