A multi-strand optical cable is a loose tube made of high-modulus plastic with colored optical fibers and ointment at the same time, and the optical fibers can move in the tube. Different loose tubes are twisted along the central reinforcing core to make the cable core. The cable core and protective material are made into scattered 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 strictly protect the optical fiber; the reinforcing core is in the center of the cable core, and there is a proper laying distance around the loose tube. The core layer is strengthened, and the optical cable can have good tensile performance and temperature characteristics by controlling the excess length of the optical fiber and adjusting the lay length.
The loose tube and the reinforcing core are filled and twisted together with cable paste to ensure the waterproof performance between the loose tube and the reinforcing core; the radial and longitudinal waterproofing of the optical cable is ensured through various measures; Side pressure measures.
The central bundled tube optical fiber is sheathed into a spiral space loose tube made of high modulus plastic, the tube is filled with waterproof glue, the tube is coated with a layer of water blocking material and armoring material, and the two A parallel steel wires are extruded into a poly Vinyl sheathed cable. its
The main features are: the unique spiral groove loose tube design is beneficial to accurately control the excess length of the optical fiber and ensure that the optical cable has good mechanical properties and temperature characteristics; the loose tube material itself has good hydrolysis resistance and high. Strength, the tube is filled with special ointment to provide critical protection for the fiber. Two parallel steel wires guarantee the tensile strength of the cable. Small diameter, light weight and easy laying.
The difference between the two:
Stranded optical cable and central tube optical cable are the two most common types of optical cables. They have their own advantages: the former has many laying methods and is suitable for overhead, direct burial, pipeline, underwater and other occasions, while the latter has the advantages of small diameter and light weight. , easy to lay and so on. In comparison, the layered optical cable has more applications, but the price is also higher than that of the central tube optical cable. If there is no requirement for the number of cores, the layered optical cable is generally not used, and steel wires can be added to increase the tensile strength of the central tube optical cable. strength.
