A fire-proof and bending-resistant shielded flexible optical cable

Abstract

The invention discloses a fire-proof and bending-resistant shielded flexible optical cable, which comprises two optical cable cores and two carbon fiber composite mandrels arranged inside, an outer shielding layer and an outer insulating layer arranged outside, an optical cable core and a carbon fiber composite core There is a central reinforcing steel wire inside the rod, and a water-blocking layer, a heat-dissipating inner pipe, and a heat-dissipating outer pipe are arranged between the outer shielding layer and the outer insulating layer. The outer insulating layer includes a polytetrafluoroethylene layer, ceramic Silicone rubber layer, high flame-retardant halogen-free polyethylene layer, heat dissipation inner tube, and heat dissipation outer tube are all made of polymer flexible materials; the outer layer of the optical cable core is sequentially provided with a composite non-woven layer, an inner insulating Braided reinforcement layer; the outer layer of the carbon fiber composite mandrel is provided with a fiber sleeve, a high temperature resistant slip belt, and a second fiber braided reinforcement layer in sequence. Under the premise of ensuring the heat dissipation performance and shielding performance of the flexible optical cable, the present invention is not easy to crack and damage after being subjected to multiple crimps and relatively high pressure, and is fireproof and high temperature resistant.

Description

technical field [0001] The invention relates to the technical field of flexible optical cables, in particular to a fireproof and bending-resistant shielded flexible optical cable. Background technique [0002] An optical fiber is a light transmission tool that causes light to be transmitted by the principle of total reflection in a fiber made of glass or plastic. A cable containing an optical fiber is called an optical cable. During the laying and use of optical cables, certain requirements and standards need to be met. Usually, the cables are required to have properties such as tensile resistance, compression resistance, corrosion resistance, aging resistance, oil resistance, and fire resistance. With the advancement of science and technology and the development of society, higher requirements are put forward for optical cables. In many fields, optical cables are required to have better flexibility and folding characteristics, and to expand the application range of cables. ...

AI Technical Summary

Problems solved by technology

The flexible optical cable has greatly improved the heat dissipation function, but the structure is relatively simple, and it is prone to cracking and damage after repeated crimping or high pressure, and the fire performance is poor when subjected to high-temperature fires, which affects the service life of the optical cable.

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