Optical cable with flame-retarding baffer layer

A buffer layer, optical cable technology, applied in the direction of fiber mechanical structure, etc., can solve the problems of communication interruption, low fire resistance and flame retardant ability of protective sleeve, and easy breakage of optical fiber.

Inactive Publication Date: 2003-07-16
上海科星自动化技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: because the optical cable of the prior art contains one or more strands of optical fibers, these fibers are arranged in a protective sheath, usually the protective sheath is made of polyethylene or polyvinyl chloride or other plastic materials or rubber There is a space between the protective sleeve and the optical fiber, so there will be friction and displacement between the optical fibers. At the same time, due to the low mechanical strength of the optical fiber, the ability of the entire optical cable to resist pulling is low, and the optical fiber is easy to break. Cause communication interruption, and the material of the protective cover has low fire and flame retardancy

Method used

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  • Optical cable with flame-retarding baffer layer
  • Optical cable with flame-retarding baffer layer

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Embodiment Construction

[0005] Such as figure 1 As shown, the present invention is equipped with a flame-retardant buffer layer of optical cable, including a protective cover 1 in the prior art, wherein, the protective cover 1 is provided with an optical fiber 2, between the protective cover 1 and the Between the optical fibers 2 described above, polyvinyl alcohol fibers 3 in the prior art are filled, and the diameter of the polyvinyl alcohol fibers 3 is between 0.000001 mm and 0.0001 mm, and the polyvinyl alcohol fibers 3 Extend along the length direction of the optical fiber 2 . The present invention compares with the prior art, because the polyvinyl alcohol fiber in the prior art is filled between the protective cover in the prior art and the described optical fiber, so friction and displacement between the optical fibers can be prevented, At the same time, the anti-pull ability of the optical cable is increased, and the polyvinyl alcohol fiber has the characteristics of flame retardancy, which c...

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Abstract

An optical cable with flame-retarding buffer layer is composed of optical fibres, protection sheath and polyvinyl alcohol fibres filled between optical fibres and protection sheath. Its advantages are high torsion strength, no friction and displacement between optical fibres, and flame-retarding function.

Description

Technical field: [0001] The invention relates to an optical element, in particular to a sheath covering an optical cable, especially an optical cable with a flame-retardant buffer layer. Background technique: [0002] One or more strands of optical fiber are included in the optical cable of the prior art, and these fibers are arranged in a protective sheath, usually the protective sheath is made of polyethylene or polyvinyl chloride or other plastic materials or rubber materials, between the protective sheath and the optical fiber there is space between, Invention content: [0003] The technical problem to be solved by the present invention is: because the optical cable of the prior art contains one or more strands of optical fibers, these fibers are arranged in a protective sheath, usually the protective sheath is made of polyethylene or polyvinyl chloride or other plastic materials or rubber There is a space between the protective sleeve and the optical fiber, so there ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/44
Inventor 张汶
Owner 上海科星自动化技术有限公司
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