The difference between layer twisting optical cable and center beam tube -type optical cable

Stranded fiber optic cable is a loose tube made of high-modulus plastic by adding colored optical fiber and ointment at the same time, and the optical fiber can move in the tube. Different loose tubes are twisted along the central reinforcing core to make the cable core. The cable core is added with protective material to make loose-layer stranded optical cable.

Main features: The loose tube material itself has hydrolysis resistance and high strength. The tube is filled with special ointment to critically protect the optical fiber; the reinforcing core is located in the center of the cable core, and the loose tube is surrounded by an appropriate twisting pitch. The core layer is strengthened, and the fiber optic cable has good tensile performance and temperature characteristics by controlling the excess length of the fiber and adjusting the twisting pitch;

The loose tube and the reinforced core are filled and twisted together with cable paste to ensure the waterproof performance between the loose tube and the reinforced core; the radial and longitudinal waterproofing of the optical cable is guaranteed by a variety of measures; according to different requirements, there are various Anti-side compression measures.

The central bundled tube type optical fiber is sleeved into a spiral space loose tube made of high-modulus plastic, the tube is filled with waterproof compound, a layer of water blocking material and armoring material is applied outside the tube, and two A parallel steel wire is extruded into a cable with a polyethylene sheath. its

The main features are: the unique spiral groove loose tube design is conducive to accurately controlling the excess length of the optical fiber, ensuring that the optical cable has good mechanical properties and temperature characteristics; the loose tube material itself has good hydrolysis resistance and high resistance. Strength, the tube is filled with special ointment, which provides key protection for the optical fiber. Two parallel steel wires ensure the tensile strength of the cable. Small diameter, light weight, easy to lay.

The difference between the two:

Stranded fiber optic cable and central tube fiber optic cable are the two most common types of fiber optic cables, and they have their own advantages: the former has many laying methods and is suitable for various occasions such as overhead, direct burial, pipeline, underwater, etc., while the latter has Small diameter, light weight, easy to lay. In comparison, the layered stranded optical cable has more applications, but the price is also higher than that of the central tube optical cable. If the number of cores is not required, it is generally not necessary to use the layered optical cable. You can add steel wire to increase the tensile strength of the central tube optical cable. strength.