Low-friction optical fiber cable and manufacturing method thereof

Abstract

The invention discloses a low-friction optical fiber cable and a manufacturing method thereof. The optical fiber cable comprises a loose sleeve and at least two reinforcing ropes, wherein the loose sleeve is internally provided with a plurality of optical fibers. Waterblocking paste is filled between the optical fibers and the loose sleeve. A sheath layer packages the external surface of the loose sleeve and the reinforcing ropes. A low-friction coating is plated on the external surface of the sheath layer. The low-friction coating is obtained through thermocuring of the low-friction coating. The low-friction coating is composed of the following components according to weight ratio: polytetrafluoroethylene emulsion, octadecyl methacrylate, 2-(Perfluorooctyl) ethyl methacrylate, polyether, trimethylol propane, isocyanate, silicon dioxide and titanium dioxide. The low-friction optical fiber cable and the manufacturing method have advantages of relatively low friction characteristic, appropriate rigidity and small weight. For aiming at a condition that a current communication manhole distance is in 110m and cell accessing distance is in 50m, a requirement for pushing the optical cable in 110m in the pipe can be satisfied. Traction by a traction rope is not required, and the number of personnel in construction is greatly reduced.

Description

technical field [0001] The invention relates to a low-friction optical fiber cable and a manufacturing method thereof, and relates to the technical field of optical fiber cables. Background technique [0002] In the process of urban FTTH construction, when the optical cable is laid in the pipeline, the optical cable is manually pulled to realize the wiring, and there are the following problems: [0003] 1. During construction, it is necessary to wear the traction rope first, then fix the optical cable with the traction rope, guide the optical cable by pulling the traction rope, and complete the laying of the optical cable in the pipeline; [0004] 2. If there is already a laid optical cable in the pipeline, because the traction rope passing through the pipe will have an impact on the laid optical cable once, after the traction rope is pulled after fixing the optical cable, the process of pulling the optical cable with the traction rope will also bring about two The second i...

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Problems solved by technology

[0004] 2. If there is already a laid optical cable in the pipeline, because the traction rope passing through the pipe will have an impact on the laid optical cable once, after the traction rope is pulled after fixing the optical cable, the process of pulling the optical cable with the traction rope will also bring about two Second impact on the laid optical cable

[0005] 3. The sheath of the traditional optical cable is affected by the extrusion mold, the smoothness changes greatly, and the frictional resistance is also large. When pulling through the pipeline, if there is an optical cable in the pipeline, it will not only affect the already laid optical cable, but also affect the newly laid optical cable. It will also have a greater impact and pose a security risk

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