Center beam tube type optical cable, manufacturing method and fixing method of center beam tube type optical cable and plastic fixture

Abstract

The invention provides a center beam tube type optical cable, a manufacturing method and a fixing method of the center beam tube type optical cable and a plastic fixture. The center beam tube type optical cable comprises an outer sheath, a plurality of loose tube sleeves located in the outer sheath and arranged in a circle, cable cores wrapped by the loose tube sleeves, a tear rope and water blocking yarn, wherein the tear rope and the water blocking yarn are located among the loose tube sleeves, and the cable cores comprise reinforcing part cushion layers wrapped by the loose tube sleeves and non-metallic reinforcing parts located in the reinforcing part cushion layers. By the adoption of the novel small-diameter optical cable, the optical cable size is effectively reduced; all materials of the optical cable are non-metallic materials, so that damage caused by thunderstorms to the optical cable is effectively avoided; besides, grounding for lightning protection in the construction process is omitted, so that construction efficiency is improved. A semi-dry structure is adopted for the cable cores, so that pollution caused by factice to the environment is reduced. The large number of the optical fiber cores meets the requirement of the access network layer for the number of optical fiber cores; in cooperation with the special non-metallic fixture, effective fixing is achieved in a connector box and a light splitting and fiber distribution box.

Description

technical field

[0001] The invention belongs to the technical field of communication optical cables, and in particular relates to a central beam tube type optical cable, a manufacturing method and a fixing method thereof, and a plastic clamp. Background technique

[0002] With the rapid development of communication services such as broadband speed-up and access to large customers and base stations, the demand for optical fibers is increasing day by day, and the use of small-core optical cables to build local networks can no longer meet the development needs of communication services.

[0003] Small-core optical cables not only occupy a large amount of valuable and increasingly scarce underground pipeline resources, but also cause a huge waste of investment due to repeated construction of optical cables, and also bring inconvenience to the maintenance of optical cables in local networks.

[0004] At present, optical cables with metal materials such as GYTA (Stranded Loose Tub...

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