Optical cable with special-shaped optical fiber loose sleeves

Abstract

The invention belongs to the technical field of cables, and particularly relates to an optical cable with special-shaped optical fiber loose sleeves. The optical cable comprises a central reinforcement component and the multiple special-shaped optical fiber loose sleeves. The special-shaped optical fiber loose sleeves are stranded around the central reinforcement component, a protective layer is coated outside the special-shaped optical fiber loose sleeves, and a jacket layer is coated outside the protective layer by means of extrusion molding; a plurality of optical guide fibers are arranged inside the special-shaped optical fiber loose sleeves; the special-shaped optical fiber loose sleeves comprise the multiple optical guide fibers and loose sleeves, and the optical guide fibers are coated by the loose sleeves; the loose sleeves comprise first portions and second portions; the first portions and the second portions of the loose sleeves are integrally formed; cylindrical surfaces are arranged inside and outside the loose sleeves; the first portions and the second portions of the loose sleeves have different colors; the special-shaped optical fiber loose sleeves are manufactured by the aid of special dies and methods. The optical cable has the main advantages of convenience in manufacturing and stripping, easiness in identification and high construction efficiency.

Description

[0001] This application is a divisional application for an invention patent named: special-shaped optical fiber loose tube and an optical cable using the loose tube, the application date is September 15, 2014, and the application number is: 201410467631.4. technical field [0002] The invention belongs to the technical field of cables, and in particular relates to a special-shaped optical fiber loose tube, a manufacturing method of the optical fiber loose tube and an optical cable using the loose tube. Background technique [0003] In the prior art, the layer-stranded optical cable is formed by twisting multiple loose tubes. In order to achieve the identification effect, the loose tubes are usually set in different colors; according to the standards of the post and telecommunications industry, the identification color spectrum is usually: blue , orange, green, brown, gray, white, red, black, yellow, purple, pink, turquoise; and when the number of loose tubes in a single twist...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the layer-stranded optical cable is formed by twisting multiple loose tubes. In order to achieve the identification effect, the loose tubes are usually set in different colors; according to the standards of the post and telecommunications industry, the identification color spectrum is usually: blue , orange, green, brown, gray, white, red, black, yellow, purple, pink, turquoise; and when the number of loose tubes in a single twisted layer in a layer twisted optical cable is more than 12, it is difficult to identify, only Repeated colors can be used for identification, which brings inconvenience to identification and construction

The commonly used 288-core stranded optical cable in the prior art is composed of 24 loose tubes, 9 in the inner layer and 15 in the outer layer; the inner layer is made of blue, orange, green, brown, gray, white, red, black , yellow color; the outer layer is blue, orange, green, brown, gray, white, red, black, yellow, purple, pink, turquoise, blue, orange, green; extremely difficult to identify

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