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Central loose tube type optical cable

A technology of bundled tube and optical cable, applied in the direction of fiber mechanical structure, etc., can solve the problems of oil pollution to the environment, affect the quality of optical cable communication, etc., and achieve the effect of improving the tensile and compressive mechanical properties

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 central bundle tube optical cable, which will not cause secondary pollution, has tensile and waterproof properties, and is especially suitable for outdoor use

Method used

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  • Central loose tube type optical cable

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Embodiment Construction

[0009] exist figure 1 Among them, the loose tube 3 of the central bundle tube optical cable is provided with a water-blocking yarn 2 and a plurality of optical fibers 1, and the loose tube 3 is provided with a phosphating steel wire layer 4, and the phosphating steel wire layer 4 is covered with a polyethylene inner sheath. Cover 5, the polyethylene inner sheath 5 is a corrugated steel strip 6, and the corrugated steel strip 6 is a polyethylene outer sheath 7.

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Abstract

Provided is a central loose tube type optical cable. A loose sleeve of the cable is internally provided with a plurality of light guide fibers and water blocking yarns. The loose sleeve is externally provided with a phosphatized steel wire layer, a polyethylene inner sheath, a corrugated steel tape and a polyethylene outer sheath. The water blocking yarns quickly swell when exposed to water so as to achieve a water blocking effect. The phosphatized steel wire layer and the corrugated steel tape improve tensile and compressive mechanical properties of the optical cable to enable the optical cable to withstand a relatively large installation gap and to be suitable for outdoor use. The polyethylene sheathes have water-resistant and flame-retardant effects.

Description

technical field [0001] The invention relates to an optical cable, in particular to a central tube type optical cable 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 and placed in the cable cores. Water-blocking cable grease is filled outside and between the cable cores. Therefore, it takes a lot of time to clean the grease when the traditional optical cable is used. The grease will pollute the environment and affect the quality of the optical fiber. 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 exi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/44
Inventor 朱凯
Owner JIANGSU DIHUA CABLE