bundle tube fiber optic cable

The difference between the layered optical cable and the central bundle tube optical cable is that the colored optical fiber and ointment are added to the loose tube made of high modulus plastic 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 a loose-tube stranded optical cable.

Main features: The loose tube material itself has hydrolysis resistance and high strength. The tube is filled with special ointment to protect the optical fiber; Strengthen the core stranding, by controlling the excess length of the optical fiber and adjusting the stranding pitch, the optical cable can have good tensile properties and temperature characteristics;

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 guaranteed by various measures; according to different requirements, there are various Anti-lateral pressure measures.

The central bundle tube optical cable is to insert the optical fiber into the loose tube made of high modulus plastic, the tube is filled with waterproof compound, and a layer of water-blocking material and armoring material is applied outside the tube, and two A parallel steel wire, and extruded polyethylene sheath into a 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, ensuring 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, which provides critical 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 optical cable and central bundle tube optical cable are the two most common forms of optical cable. They have their own advantages: the former has many laying methods and is suitable for various occasions such as overhead, direct burial, pipeline, and underwater, while the latter has The characteristics of small diameter, light weight and easy laying. In comparison, layer-stranded optical cables are used more, but the price is also higher than that of central bundle tube optical cables. If the number of cores is not required, layer-stranded optical cables are generally not required, and steel wires can be added to increase the tensile strength of central bundle tube optical cables. strength.