All-dielectric self-supporting indoor and outdoor optical cable

Abstract

The invention relates to an all-dielectric self-supporting indoor and outdoor optical cable which comprises an outer sheath (1), a glass fiber belt (2), a loose sleeve (3), fiber ointment (4) and optical fibers (5). Gaps among the optical fibers (5) are filled with the fiber ointment (4). The optical fibers (5) and the fiber ointment (4) are arranged inside the loose sleeve (3). The glass fiber belt (2) is arranged outside the loose sleeve (3). The outer sheath (1) is arranged outside the glass fiber belt (2). The all-dielectric self-supporting indoor outer optical cable has the advantages that since the glass fiber belt with glass fibers is adopted, the optical cable has good waterproof performance, damp-proof performance, pressure resistance and tensile performance, and is especially suitable for indoor and outdoor wiring; the optical fiber is oil-resistant and wear-resistant, and has a wide application range; the optical cable is small in diameter, light in weight, good in flexibility, easy to bend and convenient for laying, occupies small space, has high tension stress and high ratio of draw-weight, and is especially suitable for local call rural networks, access networks, and the like; with the all-dielectric self-supporting structure, the optical cable has good safety performance; and the optical cable is simple in process and the raw material is strictly controlled, and thus long-term stable operation of the optical cable can be guaranteed.

Description

technical field [0001] The invention relates to an optical cable, in particular to an all-dielectric self-supporting indoor and outdoor optical cable. Background technique [0002] With the establishment of optical fiber networks and high-speed broadband access networks at various levels, and the increasing popularity of computer networks, the application of indoor and outdoor optical cables is increasing, and user terminals are increasingly demanding cables that can be used as easily as electric wires. big. However, the optical cables in the prior art have shortcomings such as excessively large diameter and heavy weight, which will cause the installation to remain unchanged, poor flexibility of the optical fiber, poor tensile and compressive properties, and lack of water and moisture blocking functions, etc., which severely limit The installation environment has affected system stability. [0003] Chinese patent application number: CN201310010227.7 discloses a fully dry m...

AI Technical Summary

Problems solved by technology

However, the optical cables in the prior art have shortcomings such as excessively large diameter and heavy weight, which will cause the installation to remain unchanged, poor flexibility of the optical fiber, poor tensile and compressive properties, and lack of water and moisture blocking functions, etc., which severely limit The installation environment and affect the system stability

[0003] Chinese patent application number: CN201310010227.7 discloses a fully dry multi-core self-supporting indoor and outdoor lead-in cable, including optical fibers and optical fiber tight packages arranged on the periphery of the optical fibers, and non-metallic reinforcements are arranged outside the optical fiber tight packages , the non-metallic reinforcement is connected with a steel wire reinforcement, and a layer of low-smoke and halogen-free outer sheath is arranged outside the steel wire reinforcement and the non-metallic reinforcement. The optical cable with this structure has poor tensile and compressive properties, and is flexible. The performance is not good, the effect of blocking water and tide is not good

[0004] Chinese patent application number: CN201310021578 discloses a kind of all-dielectric central beam tube type optical cable, including optical fiber, fiber paste is filled between the optical fibers, the optical fiber and fiber paste sleeve are arranged in a PBT sleeve, and a sheath is arranged outside the PBT sleeve, and a sheath is provided inside the sheath There are FRP reinforcements, and 4-8 FRT reinforcements are evenly distributed around the sheath. The optical cable with this structure has a large diameter, poor tensile performance, poor water resistance, and poor flexibility. Not suitable for long distance wiring

Images