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Central loose tube optical cable

A bundled tube, optical cable technology, applied in the direction of fiber mechanical structure, etc., can solve the problems of inconvenient optical cable laying, no steel-plastic composite layer, heavy weight, etc., to achieve superior bending resistance, lateral pressure resistance, ballistic resistance, and convenient construction. Work, light weight effect

Inactive Publication Date: 2011-07-27
SUZHOU WUJIANG SPECIAL CABLE NO 2 PLANT
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The central beam tube optical cable is one of the most commonly used optical cables. The traditional central beam tube optical cable is large in size and heavy in weight, which is not convenient for the laying of the optical cable, and does not have a steel-plastic composite layer. It is resistant to bending, lateral pressure and Poor bulletproof performance

Method used

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Embodiment Construction

[0016] Below in conjunction with accompanying drawing, the present invention is described in further detail:

[0017] like figure 1 As shown, the central bundle tube optical cable is composed of a cable core 1 and a sheath 2 covering the outer periphery of the cable core 1 and extending along the axis of the cable core.

[0018] In this embodiment, the cable core 1 is composed of six optical fibers 11 , a loose tube 13 wrapped around the six optical fibers 11 , and fiber paste 12 filled between the loose tube 13 and the six optical fibers 11 . The loose tube 13 is made of PBT plastic with excellent linear expansion; the fiber paste 12 can not only buffer the optical fiber from mechanical external force, but also prevent water, moisture, etc. from entering the optical fiber and causing the optical fiber to be damaged. In order to achieve the purpose of vertical water blocking.

[0019] In this embodiment, the sheath 2 is composed of eleven steel wires 21 twisted and arranged ...

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Abstract

The invention discloses a central loose tube optical cable, which consists of a cable core and a sheath which is coated at the periphery of the cable core, wherein the cable core consists of a plurality of optical fibers, a loose sleeve which is coated outside the plurality of optical fibers, and fiber paste which is filled between the loose sleeve and the optical fibers; and the sheath consists of a plurality of steel wires which are arranged at the periphery of the cable core in a stranded mode, a binding layer which is coated at the peripheries of the plurality of steel wires, a waterproof tape which is coated at the periphery of the binding layer, a steel plastic composite tape which is longitudinally coated at the periphery of the waterproof tape, and a polyethylene protection layer which is extruded at the periphery of the steel plastic composite tape. Thinner steel wires are arranged at the periphery of the cable core in a stranded mode, so that the optical cable has excellent tensile property, lateral pressure resistance and bulletproof property, and the optical cable has small dimension and light weight and is convenience to construct.

Description

[0001] technical field [0002] The invention relates to an optical cable, in particular to a central bundle tube type optical cable. [0003] Background technique [0004] The central beam tube optical cable is one of the most commonly used optical cables. The traditional central beam tube optical cable is large in size and heavy in weight, which is not convenient for laying the optical cable, and does not have a steel-plastic composite layer. It is resistant to bending, lateral pressure and Ballistic performance is poor. [0005] Contents of the invention [0006] The object of the present invention is to provide a central bundle tube type optical cable with smaller size and higher strength. [0007] In order to solve the above problems, the technical solution adopted in the present invention is: a central beam tube optical cable, which is composed of a cable core and a sheath covering the outer periphery of the cable core. The cable core is composed of a plurality of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/44
Inventor 崔七宝
Owner SUZHOU WUJIANG SPECIAL CABLE NO 2 PLANT
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