Cicada-repellent butterfly-shaped optical cable for FTTH, and manufacturing method thereof

Abstract

The invention discloses a cicada-repellent butterfly-shaped optical cable for FTTH, and a manufacturing method thereof. The method comprises the following steps: 1, performing wire drawing on a fiber prefabricated rod; 2, screening a fiber; 3, detecting the fiber; 4, producing a butterfly-shaped optical cable; 5, placing tearing ropes; 6, performing code-spray printing on the sheath surface of the butterfly-shaped optical cable; 7, extruding a nylon sheath layer; and 8, testing mechanical performance. The optical cable comprises the butterfly-shaped optical cable coated by a nylon sheath, the butterfly-shaped optical cable comprises a low-smoke halogen-free flame-retardant sheath whose two sides are provided with V-shaped grooves, the tearing ropes are placed in the V-shaped grooves, the center of the low-smoke halogen-free flame-retardant sheath disposed at the same parallel surface with the V-shaped grooves is provided with the fiber, a pair of non-metal reinforcement members are symmetrically distributed at the two sides of the fiber, and center lines of the two circular non-metal reinforcement members are disposed at the same plane with the center line of the fiber. According to the invention, the tension and anti-compression performance of the optical cable are improved, and the nylon sheath is more easily peeled by use of the tearing ropes; and the optical cable can have a protection effect of preventing the optical cable from cicada bites.

Description

technical field [0001] The invention belongs to the technical field of optical cable manufacturing technology, and in particular relates to a novel anti-cicada butterfly optical cable for FTTH and a manufacturing method thereof. Background technique [0002] With the acceleration of optical network construction and the acceleration of broadband, the national "speed increase and fee reduction" goal of 10M in urban areas and rural fiber-to-villages will be realized, and the coverage of optical fiber networks will exceed 200 million households, and the number of optical fiber users will exceed 76 million. The urgent task of regional target network coverage and speeding up 4G network construction. Among them, the scale of fiber-to-the-home will continue to be popularized in rural areas and cities. Fiber to the Home (FTTH) refers to the use of optical fiber in the access network stage from the backbone network to the community users to realize voice, data and various An access m...

AI Technical Summary

Problems solved by technology

Especially in the south of my country, the lead-in optical cables used in FTTH are greatly affected by cicadas. In these areas, cicadas often attach to optical cables. According to their living habits, cicadas use their sharp mouthparts and ovipositors to pierce Enter the optical cable, damage the optical cable, and further damage the optical fiber in the optical cable, affecting the transmission performance of the optical fiber

[0003] The authorization number is CN201993505U, the name is a new self-supporting butterfly-shaped anti-cicada lead-in optical cable; the authorization number is CN203930153U, and the name is a self-supporting anti-cicada heterosexual optical cable for access network. In the above authorized patents, the anti-cicada optical cable uses metal sheets for anti-cicada There are two kinds of anti-cicadas and the chute type. Although they have a good effect on anti-cicadas and can effectively prevent the sharp mouthparts and oviposition tubes of cicadas from damaging the optical fiber, they still have certain disadvantages in terms of structure. The optical cable will cause the weight of the incoming optical cable to increase, which will increase the difficulty of laying, and the chute-type optical cable will cause problems such as inconvenient stripping of the optical cable.

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