Self-supporting 8-shaped armored butterfly-type introduced optical cable

Abstract

The invention relates to a self-supporting 8-shaped armored butterfly-type introduced optical cable. The optical cable comprises suspension wires (4), a suspension wire sheath (1), an optical cable sheath (2) and an optical cable unit (7). At least one suspension wire (4) is arranged in the suspension wire sheath (1). The optical cable unit (7) is arranged on a center position of the optical cable sheath (2). The optical cable sheath (2) and the suspension wire sheath (1) are connected through a connection portion (3). A waterproof layer (5) and an armor layer (6) are successively sleeved in the optical cable sheath (2). The optical cable unit (7) comprises a unit sheath (8), an optical fiber (10) and reinforcement cores (11). A cross section of the unit sheath (8) is a rectangle. The optical fiber (10) is arranged on a center position of the unit sheath (8). The reinforcement cores (11) are symmetrically arranged in the unit sheath (8) of two sides of the optical fiber (10). The optical cable has the advantages that self-supporting intensity is high; overhead or indoor laying is convenient; branching is easy to be achieved and the optical cable unit is under uniform stress after laying.

Description

technical field [0001] The invention relates to a butterfly optical cable, in particular to a self-supporting 8-shaped armored butterfly lead-in optical cable. Background technique [0002] With the development of optical communication towards FTTB (Fiber to the Building), FTTO (Fiber to the Office), FTTH (Fiber to the Home), butterfly cables are widely used in the access network. In order to simplify construction and maintenance, a self-supporting butterfly cable that can be used both indoors and outdoors is widely used; in the outdoor section, it can be used as a self-supporting cable overhead; On the holder, the remaining optical cables are removed from the suspension wire components and become butterfly optical cables to be introduced into the room, and are used with quick-connect connectors or optical fiber cold connections. The traditional butterfly optical cable is inconvenient to lay, the construction difficulty is high, and the self-supporting strength is low. [...

AI Technical Summary

Problems solved by technology

The construction of such a structure is relatively cumbersome. If an all-fiber network transformation is to be carried out in the future, the project must be huge, and it will take time and work to rewire the site.

[0004] Chinese patent application number: 201220363366.1 discloses a photoelectric hybrid corrugated cable, including an optical communication unit, an electrical communication unit and an outer sheath, the optical communication unit includes at least a pair of optical fiber cores, and the electrical communication unit includes at least one electrical communication link The corrugated cable with this structure has poor bearing and tensile capacity, and most of the cable is exposed to the outside air. After long-term sun and rain, the protective effect of the outer sheath of the cable Small

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