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Optical cable

A technology of optical cables and optical fiber lines, applied in the field of cables, can solve problems such as limited longitudinal compression resistance, large permanent deformation, and optical fiber extrusion, and achieve excellent anti-deformation ability, small impact and damage, and excellent structural stability. Effect

Active Publication Date: 2020-09-18
HANGZHOU FUTONG COMM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems that the existing optical cables have limited longitudinal compression resistance, they are easily affected by the longitudinal pressure during embedding, resulting in a large amount of permanent deformation, extrusion and damage to the internal optical fiber, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0051] a kind of like figure 1 The fiber optic cable shown, which includes:

[0052] Optical fiber cable 100, inner sheath 200 and outer sheath 300;

[0053] The optical fiber cable 100 is composed of single-mode or multi-mode optical fiber, and its outer surface is tightly wrapped with a non-woven fabric tape 101 for preliminary protection. The non-woven fabric tape 101 mainly protects the optical fiber cable 100 from abrasion and achieves Moisture-proof effect;

[0054] The cross sections of the inner sheath 200 and the outer sheath 300 are both triangular in shape as shown in the figure. In this embodiment, both are preferably equilateral triangles. In general, it has been found through experiments that the triangle angle can be controlled within the range of 58-62° to achieve the same The substantially equivalent technical effect of present embodiment;

[0055] Wherein, the cross section of the outer sheath 300 is an equilateral triangle with rounded corners. When the o...

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Abstract

The invention belongs to the field of cables, and particularly relates to an optical cable. The optical cable comprises an optical fiber cable, an inner sheath and an outer sheath, the inner sheath wraps the optical fiber, and the outer sheath wraps the inner sheath. The cross sections of the inner sheath and the outer sheath are triangular. The optical fibers are tangent to the inner side walls of the two side waists and the bottom of the inner sheath, and side face the inner sheath is arranged corresponding to the side face of the outer sheath side face. The optical cable provided by the invention has high structural stability, high longitudinal pressure resistance and high deformation resistance, and the influence and damage to the optical fiber after deformation are small.

Description

technical field [0001] The invention belongs to the field of cables, in particular to an optical cable. Background technique [0002] Optical cables are very common cables used for optical signal transmission and play a very important role in modern society. The current mainstream signal transmission means is through optical cables. Therefore, the laying amount of the optical cable is also relatively large. [0003] The most important way of laying optical cables is to bury, that is, to bury the optical cables underground for laying. [0004] However, after the existing optical cable is buried, it will be subjected to longitudinal pressure for a long time, and will gradually deform and form a large amount of permanent deformation. For example, when a circular optical cable is buried for a long time, it will be found that it has been permanently deformed into an ellipse when it is overhauled. Optical fibers are also susceptible to crushing. In addition, the aging of the o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/44
CPCG02B6/4427G02B6/443G02B6/4432G02B6/44384
Inventor 吴海港周杭明
Owner HANGZHOU FUTONG COMM TECH CO LTD
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