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Indoor and outdoor universal self-supporting rubber-covered wire optical cable

A sheathed optical cable and self-supporting technology, applied in the field of indoor and outdoor self-supporting self-supporting optical cable, can solve the problems of short service life, high maintenance cost, increased loss, etc., so as to improve the anti-pressure performance and ensure the tensile strength. The effect of satisfying performance and bending performance

Active Publication Date: 2022-04-12
YANGTZE OPTICAL FIBRE & CABLE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are obvious defects in cold junction technology: large loss, short service life, high maintenance cost; hot melt technology is complicated to operate, low in efficiency, and requires large equipment investment
[0004] In addition, although the current outdoor leather cable has good tensile performance, it can withstand strong tensile force without breaking the fiber.
In the actual installation process, fixing methods such as winding and kink fixing on cement poles are usually used to save costs or improve efficiency. However, outdoor sheath optical cables are likely to be bent or subjected to high pressure due to this fixing method, resulting in increased loss or even fiber break

Method used

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  • Indoor and outdoor universal self-supporting rubber-covered wire optical cable
  • Indoor and outdoor universal self-supporting rubber-covered wire optical cable
  • Indoor and outdoor universal self-supporting rubber-covered wire optical cable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] Such as figure 1 As shown, the self-supporting leather optical cable provided in this embodiment includes a strengthening member, a communication optical unit and an outer sheath;

[0050] The reinforcement is phosphating thick steel wire with a diameter of 1 mm; the reinforcement is placed straight;

[0051] The communication optical unit is a single-core tight-buffered optical fiber; the strengthening member is arranged in a straight line with the communication optical unit;

[0052] The outer sheath is 8-shaped; one side of the reinforcement is close to the outside of the phosphating thick steel wire, with a thickness of 0.5mm, and the radius of curvature of the arc on the side of the reinforcement is 1.0mm; the thickness of the side of the communication optical unit is 0.25mm. mm, forming a cavity with a diameter of 1mm to accommodate the communication optical unit, that is, covering the outside of the communication optical unit, and the radius of curvature on one ...

Embodiment 2

[0056] Such as figure 2 As shown, the self-supporting leather optical cable provided in this embodiment includes a strengthening member, a communication optical unit and an outer sheath;

[0057] The reinforcement is phosphating thick steel wire with a diameter of 1 mm; the reinforcement is placed straight;

[0058] The communication optical unit is a single-core tight-buffered optical fiber; the strengthening member is arranged in a straight line with the communication optical unit;

[0059] The outer sheath has a drop-shaped cross section, and the circle where the arc on one side of the reinforcing member is located is tangent to the circle where the arc on one side of the communication optical unit is located. The radius of curvature of the arc on one side of the reinforcement is 1.0mm, and the radius of curvature on the side of the communication optical unit is 0.75mm. There is a groove in the middle of the outer tangent section for optical cable stripping; The side is ...

Embodiment 3

[0063] Such as image 3 As shown, the self-supporting leather optical cable provided in this embodiment includes a strengthening member, a communication optical unit and an outer sheath;

[0064] The reinforcement is phosphating thick steel wire with a diameter of 1 mm; the reinforcement is placed straight;

[0065] The communication optical unit is a single-core tight-buffered optical fiber; the strengthening member is arranged in a straight line with the communication optical unit;

[0066] The outer sheath has a gourd-shaped cross section, and the circle where the arc on one side of the reinforcing member is located and the ellipse circumference where the elliptical arc on one side of the communication optical unit is located form the outer periphery of the cross section, and the radius of curvature of the arc on the side of the reinforcing member is 1.0mm, the radius of curvature on one side of the communication optical unit is 0.75mm, the ellipse where the ellipse arc on...

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Abstract

The invention discloses a self-supporting rubber-covered wire optical cable which comprises a reinforcing piece, a communication optical unit and an outer sheath. The reinforcer is formed by a straight metal reinforcer, the reinforcer is used as a suspension wire, and the reinforcer and the communication optical unit are arranged straightly; and the outer sheath clings to the outer side of the reinforcing piece and covers the outer side of the communication optical unit. According to the self-supporting rubber-covered wire optical cable provided by the invention, the structure of the existing rubber-covered wire optical cable is simplified, the design of a butterfly-shaped sheath with two wings and a reinforcing piece is canceled, and the reinforcing piece is used as a suspension wire at the same time, so that the self-supporting design of the outdoor rubber-covered wire optical cable is met; a butterfly-shaped sheath is omitted, and the communication optical units are close to the reinforcer and are arranged straightly, so that the tensile property is ensured, and one side of the reinforcer shares lateral pressure, and the pressure measurement resistance of the optical cable is improved. And on the other hand, the cable diameter is reduced, so that the bending performance meets the indoor wiring requirement.

Description

technical field [0001] The invention belongs to the technical field of optical fiber communication, and more specifically relates to an indoor and outdoor universal self-supporting covered wire optical cable. Background technique [0002] Leather cable, also known as butterfly cable, is usually divided into indoor leather cable and outdoor leather cable. The price difference between the two is quite large, and the price of the outdoor type is about twice that of the indoor type. The price factor should be considered when making a specific design plan. In general, the self-supporting type with higher cost and better tensile performance is used outdoors. Line optical cable, ordinary butterfly optical cable for indoor use, and the transition between the two is through a fiber distribution box or a splice box. [0003] The large-scale use of leather cable in the FTTX project mainly adopts two splicing methods: one is the optical cable cold splicing technology (physical splicing...

Claims

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Application Information

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IPC IPC(8): G02B6/44
Inventor 孙志雄杨智凌赵彤
Owner YANGTZE OPTICAL FIBRE & CABLE CO LTD
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