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Bird pecking prevented optical cable and manufacturing method thereof

An anti-bird pecking and optical cable technology, applied in the field of cables, can solve the extremely difficult problem of effectively resisting bird attack

Active Publication Date: 2015-05-27
郑州天河通信科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0019] In the above patents, the outer layer uses high-density or high-molecular polyolefin sheath, which is a conventional material in the prior art. Facts have proved that it is extremely difficult to effectively resist The role of bird infestation

Method used

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  • Bird pecking prevented optical cable and manufacturing method thereof
  • Bird pecking prevented optical cable and manufacturing method thereof
  • Bird pecking prevented optical cable and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0071] please see figure 1 , anti-bird pecking optical cable, which includes four loose tubes 2 distributed outside the strength member 3, a protective layer 4 outside the loose tube, an inner sheath 5 outside the protective layer, and located between the inner sheath The outer outer sheath 7 contains six optical fibers 1 in each loose tube, and is characterized in that there is an anti-peck layer 6 between the inner sheath and the outer sheath, and the anti-peck layer is made of the following raw materials in parts by weight Composition: medium-density polyethylene or low-density polyethylene or high-density polyethylene: 50-80 parts; grade 617 or grade 677 epoxy resin: 10-20 parts; diameter 10-80 μm, length / diameter ratio 5-20 ultra-fine steel fibers or glass fibers with a length of 0.1-1 mm and a diameter of 0.03-1 mm or silica optical fibers with a diameter of 6.5-260 μm and a length of 0.03-1 mm: 40 to 60 parts; EVA hot melt adhesive : 5-10 parts; Antioxidant for cable s...

Embodiment 2

[0081] please see figure 2, anti-bird pecking optical cable, which includes four loose tubes 2 distributed outside the reinforcement 3 and a large filling rope 21, a protective layer 4 located outside the loose tube and the large filled rope, located outside the protective layer The inner sheath 5, the outer sheath 7 outside the inner sheath, each loose tube contains at least one optical fiber 1, which is characterized in that there is an anti-peck layer 6 between the inner sheath and the outer sheath, The anti-peck layer is composed of the following raw materials in parts by weight: medium-density polyethylene or low-density polyethylene or high-density polyethylene: 50-80 parts; epoxy resin with brand 617 or brand 677: 10-20 parts Parts; ultra-fine steel fibers with a diameter of 10-80 μm and a length / diameter ratio of 5-20, or glass fibers with a length of 0.1-1 mm and a diameter of 0.03-1 mm, or binary fibers with a diameter of 6.5-260 μm and a length of 0.03-1 mm. Silic...

Embodiment 3

[0092] please see image 3 , anti-bird pecking optical cable, which includes four loose tubes 2 distributed outside the reinforcement 3, small filling ropes 22 located in the outer gaps of adjacent loose tubes, outside the loose tubes and small filling ropes The protective layer 4, the inner sheath 5 outside the protective layer, the outer sheath 7 outside the inner sheath, each loose tube contains sixteen optical fibers 1, and the optical fibers are located in the optical fiber ribbon , the optical fiber ribbon is located in the loose tube, characterized in that there is an anti-pecking layer 6 between the inner sheath and the outer sheath, and the anti-pecking layer is composed of the following raw materials in parts by weight: medium density polyethylene or low density polyethylene Ethylene or high-density polyethylene: 50-80 parts; epoxy resin with grade 617 or grade 677: 10-20 parts; ultra-fine steel fibers or lengths with a diameter of 10-80 μm and a length / diameter rati...

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Abstract

The invention belongs to the technical field of cables and particularly relates to a bird pecking prevented optical cable. The bird pecking prevented optical cable comprises a plurality of loose sleeves, a protective layer, an inner protecting layer and an outer sheath, wherein the loose sleeves are distributed outside a reinforcing member, the protective layer is located outside the loose sleeves, the inner protecting layer is located outside the protective layer, and the outer sheath is located outside the inner protecting layer; each loose sleeve at least contains one optical fiber. The bird pecking prevented optical cable is characterized in that a bird pecking preventing layer is arranged between the inner protecting layer and the outer sheath and is prepared from the following raw materials: medium-density polyethylene or low-density polyethylene or high-density polyethylene, epoxy resin, superfine steel fibers or glass fibers or silica optical fibers, an EVA (Ethylene Vinyl acetate Copolymer) hot-melt adhesive, an antioxidant, aluminum hydroxide, paraffin and carbon black master batches. The invention further discloses a manufacturing method of the bird pecking prevented optical cable. The bird pecking prevented optical cable and the manufacturing method thereof have the following main beneficial effects that the manufacturing is easy, the bird pecking preventing effect is good, the production speed is high, and finished products are high in qualified rate and are more pressure-resistant and more impact-resistant.

Description

technical field [0001] The invention belongs to the technical field of cables, and in particular relates to bird-pecking-proof optical cables, bird-pecking-proof cables and their corresponding manufacturing methods. Background technique [0002] In order to adapt to the survival of the environment, most of the birds that grow near the forest area have sharp cockroaches, which can damage cables, communication cable sheaths and insulation layers. In electric cables and communication optical cables, in order to facilitate identification, the insulating layer and loose tubes usually have multiple colors. After the sheath is pecked, the insulating layers and loose tubes of various colors look like colorful insects, and birds often eat them by mistake. Pecking the insulated wire core, optical fiber, or even the copper conductor, causing power / communication failure. Rain and snow enter the cable through the broken sheath, and over time, cause unexplained communication failures. I...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/44
CPCG02B6/4427G02B6/4429G02B6/443G02B6/4432G02B6/4479
Inventor 沈群华
Owner 郑州天河通信科技有限公司
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