What is special optical cable

      Ribbon cable 

        Through a single fiber with multiple color, stacked with the fiber and secondary coating process with the unit into the cable. Optical fiber with two, namely, encapsulation type and stick-type side, the former can withstand the lateral pressure, which is thin. Each band can have 8, 12 or 16 fibers. Band optical fiber distance of 0.28mm (for 4, 8) and 0.3mm (for 12 and 16), neatly arranged vertically on the flatness, the deviation request, no larger than such as 30,40,50 um ( depending on the number of optical band), so the cluster (fusion) continued.Band optical fiber and orderly use of chromatography, which will help identify when maintenance and do not follow correct. Optical fiber with a small size, can increase the fiber in the fiber-loaded density, may constitute a large number of cores, such as core 320 until 3456.Apply to the current rapid development of optical access networks. 



        All Dielectric Self-supporting fiber optic cable 

         Referred to as the ADSS (= All Dielectric self-support) cable, which enhanced tensile aramid yarn element but not the metal and glass fiber reinforced plastic (FRP). Primarily used in strong electric occasions, such as electricity and rail communication systems; the same time, spanning the river or other large span complex terrain situations. ADSS cable can not power the construction, resistance to electricity mark, wide temperature range. 



        OPGW 

        Referred to as OPGW (= Optical Power Grounded Waveguide), also known as fiber-optic overhead ground wire, power transmission lines for communication with the ground containing the fiber unit. This kind of cable to achieve co-existence, that ground the electrical and mechanical properties are not set up due to damage to optical fiber and fiber unit should be adequately protected without injury. A lead frame, stainless steel tube and the type and other types of undersea fiber optic cable. 



         Submarine cable 

         The laying of undersea fiber optic cable in, there are shallow and deep-sea applications.This cable features; First withstand great hydrostatic pressure (increased pressure for each 10m deep 1 ton) and the drag force during the release; second, to prevent the optical fiber hydrogen invasion. Have confirmed that hydrogen will lead to increased fiber attenuation; third is a large span of hops. In fiber-optic submarine cable unit are placed in the center and the tyranny of stainless steel tube. Around the outside of the pipe arch structure of high-strength steel wire. Layer is wrapped in copper wire, for as far for, but also makes the laying of fiber optic cable does not occur when the micro / macro bending. Then extruded outer jacket. May also be pinned to prevent tool damage, including sharks biting. In China Shanghai, Qingdao, Shantou has been inter-ocean submarine cable landing.