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GYDTA (metal strengthening member, loose tube stranded and filled with optical fiber ribbon, aluminum-polyethylene bonded sheathed outdoor optical fiber cable for communication) The structure of the optical cable is to sheath the single-mode optical fiber ribbon with the inner filling made of high modulus plastic Waterproof compound in loose tube. The center of the cable core is a metal reinforced core. For certain number of cores, the metal reinforced core can be a steel strand, which can be extruded with a layer of polyethylene (PE). The loose tube (and the filling rope) is twisted around the central reinforcing core to form a compact and circular cable core. The gaps in the cable core are filled with water-blocking compounds and then coated with a plastic aluminum tape longitudinally wrapped with a polyethylene sheath.
Features:
●Precise control of the excess length of the optical fiber ensures that the optical cable has good tensile performance and temperature characteristics
●PBT loose tube material has good hydrolysis resistance, and the tube is filled with special grease to protect the optical fiber
●Optical cable has small diameter, high fiber density and light weight
●Smooth outer sheath enables the optical cable to have a smaller coefficient of friction during installation
●PE sheath has good resistance to solar radiation
●The following measures are taken to ensure the waterproof performance of the optical cable: the loose tube is filled with special waterproof compound; the outside of the cable core is filled with water-swellable water-blocking cable paste; the plastic-coated aluminum tape moisture-proof layer
Application:
Aerial installtion, pipeline installtion
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Fiber count(core)
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6-96
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24-288
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720
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960
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1440
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6 fibers per ribbon
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8 or 12 fibers per ribbon
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12 fibers per ribbon
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12 fibers per ribbon
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12 fibers per ribbon
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Outer diameter(mm)
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16.3
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19.4
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29
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33.7
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35
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Cable weight(kg/km)
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196
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285
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700
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915
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998
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Minimum tensile strength(N)
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Short-term:1500-3000
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Long-term:600
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Minumum crushing(N/100mm)
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short-term:1500-3000
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Long-term:600
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Bending radius
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Static:15 times of diameter Dynamic:20times of diameter
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Standard length for delivery(km)
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24
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Temperature range
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(-40~+60)
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