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Ice-resistant and anti-aging self-supporting optical cable

A self-supporting optical cable, anti-aging technology, applied in the direction of light guide, optics, optical components, etc., can solve the problems of the decline of the service life of the optical cable and the accelerated aging speed of the optical cable, so as to prolong the service life, delay the aging speed, and strengthen the anti-icing ability. Effect

Active Publication Date: 2019-12-20
江苏华脉光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the external environment temperature changes, the temperature of the optical cable will cycle between high and low temperature, which will accelerate the aging speed of various materials in the optical cable and reduce the service life of the optical cable.

Method used

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  • Ice-resistant and anti-aging self-supporting optical cable

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] See attached figure 1 , the present application provides an anti-ice and anti-aging self-supporting optical cable, the optical cable includes a cable core, a first tape layer coated outside the cable core in turn, an inner sheath, a non-metallic strengthening layer, a second cladding belt layer and outer sheath, a central reinforcement is arranged in the cable core, and a plurality of loose tubes are arranged around the central reinforcement, and cable paste is filled between the loose tubes, and the loose tubes are A plurality of optical fibers are arranged in the sleeve, and the loose tube is filled with fiber paste, and it is characterized in that the first cladding layer, the second cladding layer, the inner sheath, and the outer sheath contain phase change materials . The non-metal reinforcing layer is aramid fiber or glass fiber yarn or glass fiber tape.

[0020] The solid-liquid phase transition temperature of the phase transition material is 0-10°C. The phase...

Embodiment 2

[0029] The difference between the optical fiber of this embodiment and the first embodiment is that the surface of the optical fiber is coated with a water-blocking coating, the loose tube is also coated with an inner refractory layer, and the inner refractory layer is outer coated with An inner sheath, the inner sheath is coated with a heat insulation layer and an outer refractory layer in turn, the outer refractory layer is extruded and coated with an outer sheath, and the material of the inner sheath is ceramicized flame-retardant polyolefin, so The material of the heat insulation layer is a flame-retardant glass fiber tape, and an airgel layer is arranged between the heat insulation layer and the outer fireproof layer, and the material of the airgel layer is phenolic resin-silicon dioxide airgel. The water-blocking coating is obtained by coating a water-blocking coating on the surface of the optical fiber and drying it. In terms of mass, the water-blocking coating includes ...

Embodiment 3

[0031]The difference between the optical cable in this embodiment and the second embodiment is that the water-blocking coating is obtained by coating the water-blocking coating on the surface of the optical fiber and then drying it. In terms of mass, the water-blocking coating includes ethyl fiber 30 parts of prime, 10 parts of phenolic resin, 10 parts of polyphosphate, 10 parts of epoxy resin, 15 parts of polyvinylpyrrolidone, 5 parts of polyvinyl alcohol, 10 parts of polyacrylate, 40 parts of solvent and 5 parts of castor oil, the Solvent can comprise one or more in xylene, ethanol, butanol and acetone, and the molecular weight of described ethyl cellulose and polyacrylate is 5kg / mol; The molecular weight of described phenolic resin, polyphosphate and epoxy resin is 10kg / mol. The central reinforcement is a glass fiber reinforced rod, and the surface of the glass fiber reinforced rod is provided with several concave-convex textures. In terms of mass, the material of the glass...

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Abstract

The invention provides an ice-resistant and anti-aging self-supporting optical cable. The ice-resistant and anti-aging self-supporting optical cable comprises a cable core, and a first wrapping tape layer, an inner protective layer, a nonmetal reinforcing layer, a second wrapping tape layer and an outer protective layer which are wrapped outside the cable core in sequence, wherein a central reinforcing member is arranged in the cable core; a plurality of loose sleeves are arranged around the central reinforcing member; cable paste is filled between the loose sleeves; a plurality of optical fibers are arranged in the loose sleeves; and fiber paste is filled in the loose sleeves. The ice-resistant and anti-aging self-supporting optical cable is characterized in that a phase change material is contained in the first wrapping tape layer, the second wrapping tape layer, the inner protective layer and the outer protective layer. According to the ice-resistant and anti-aging self-supporting optical cable, a layer of wrapping tape containing the phase change material is wrapped on the cable core and the nonmetal reinforcing layer, a suitable proportion of the phase change material is alsomixed in sheath polyethylene, and when the external temperature is changed, the phase change material absorbs and releases heat, so that the temperature of the optical cable is kept near the phase transition temperature of the phase change material.

Description

technical field [0001] The present application relates to an anti-ice and anti-aging self-supporting optical cable. Background technique [0002] With the continuous development of optical network fiber-to-the-home and the current 5G network construction, users have higher and higher requirements for network speed. In the construction of optical network long-distance communication and inter-office communication, all-dielectric self-supporting optical cables are favored because they can be laid overhead using existing power poles and towers. When the self-supporting optical cable is constructed in the optical network, it is inevitable to be laid overhead in some areas with a large temperature difference between day and night. When the outside temperature is low, the temperature of the optical cable will drop accordingly, and the water attached to the surface of the optical cable will condense into ice, increasing the size of the optical cable. The self-weight increases the p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B6/44
CPCG02B6/443G02B6/4432G02B6/4436G02B6/44384
Inventor 叶建胜刘小兵孙国青李国帅彭劲国朱晖严春杰
Owner 江苏华脉光电科技有限公司
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