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The structure of GYDTA (outdoor optical cable used for telecommunication with metallic central strength, Al-PE cementing sheathed, loose and layer-stranded tube style,) is covering the inner-fulfilled waterproof compound loose tube, which is made of high modulus plastic, with the single mode and multi-mode optical fiber. There is a steel wire in the middle of the optical cable core. For some optical cables with certain number of core, the steel wire should be a steel stranded line covered with a tight pack of polyethylene (PE).The compact and round shape cable core is a combination of the loose sleeve pipe (gasket for packing) and center-strengthened core, the gap in the cable core is filled with water retarding compound. It is cabled after the plastic-plated Al tapes has been covered of PE sheath. |
