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Stranded optical cable

A layer-twisted, optical cable technology, applied in the direction of fiber mechanical structure, etc., can solve problems such as affecting the communication quality of optical cables, pollution of the environment by grease, etc., achieving the effect of large installation drop and improving tensile performance

Inactive Publication Date: 2014-02-12
JIANGSU DIHUA CABLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to overcome the problem that the grease in the existing optical cable pollutes the environment and affects the communication quality of the optical cable, the present invention provides a layer-stranded optical cable, which does not cause secondary pollution, has tensile and waterproof properties, and has high communication quality

Method used

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  • Stranded optical cable

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Embodiment Construction

[0009] exist figure 1 Among them, the layer-stranded optical cable includes four loose tubes 3, and each loose tube 3 is provided with a plurality of optical fibers 1 and water-blocking yarns 2, and a filling rope 4 is arranged between the loose tubes 3, and the outside of the filling rope 4 It is a longitudinally wrapped water blocking belt 5, and a corrugated steel strip 6 is arranged on the outside of the longitudinally wrapped water blocking belt 5, and the outer sheath 7 of the corrugated steel strip 6 is a polyethylene outer sheath.

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Abstract

Provided is a stranded optical cable. The optical cable comprises a plurality of loose sleeves, each of which is internally provided with a plurality of light guide fibers and water blocking yarns. Filling ropes are arranged among the loose sleeves. A longitudinally-wrapped water blocking tape is arranged outside the filling ropes. A corrugated steel tape is arranged outside the longitudinally-wrapped water blocking tape. A polyethylene outer sheath is arranged outside the corrugated steel tape. The longitudinally-wrapped water blocking tape and the water blocking yarns quickly swell when exposed to water so as to achieve a water blocking effect. The corrugated steel tape and the filling ropes improve tensile strength of the optical cable to enable the optical cable to withstand a relatively large installation gap.

Description

technical field [0001] The invention relates to an optical cable, in particular to an optical cable with a layer twisted structure with tensile and waterproof properties. Background technique [0002] At present, optical cables are mainly composed of loose tubes, optical fibers in the loose tubes, and sheaths outside the cable cores. In order to prevent water and moisture from entering the optical cables and affecting the transmission effect of the optical fibers, water-blocking fiber paste is placed in the loose tubes. Water-blocking cable grease is filled outside and between the cable cores. Therefore, when using traditional optical cables, it takes a lot of time to clean the grease. The grease will pollute the environment and affect the quality of the optical fiber. At the same time, it will also be limited by the installation drop. Also more restricted. Contents of the invention [0003] In order to overcome the problem that the grease in the exist...

Claims

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Application Information

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IPC IPC(8): G02B6/44
Inventor 朱凯
Owner JIANGSU DIHUA CABLE