Anti-biting optical cable

Abstract

The invention belongs to the field of optical cables, and particularly relates to an anti-biting optical cable. The cable comprises a central reinforcing member, an inner sheath and an outer sheath which are sequentially arranged from inside to outside. An optical fiber cavity is arranged in the inner sheath, a row type optical fiber sleeve is arranged in the optical fiber cavity, and a plurality of optical fibers are arranged in the sleeve; the outer surface of the inner sheath is coated with an insulating armor layer, and the insulating armor layer extends to the center of the optical cable and coats the outer surface of the central reinforcing member, and is attached to the inner sheath to form an opening. The outer side of the insulating armor layer is coated with the outer sheath, and polyurethane fiber cloth is arranged on the inner surface of the outer sheath; the insulating armor layer is prepared by extrusion molding of insulating silicon resin; a second reinforcing piece is arranged at the opening of the insulating armor layer, the side walls of the two ends of the second reinforcing piece abut against the side wall of the opening in the circumferential direction, and the end portions of the two ends abut against the inner surface of the polyurethane fiber cloth outwards in the radial direction. The optical cable provided by the invention has very effective anti-biting performance, and the anti-biting performance can be kept for a long time.

Description

technical field [0001] The invention belongs to the field of optical cables, in particular to an anti-bite optical cable. Background technique [0002] In order to overcome the problem of easy bite damage when laying optical cables in the field, a variety of optical cables with anti-bite properties have been developed. For example, the common GYTA optical cable, and some lightning-prone areas use all-non-metallic structure overhead optical cables, but in areas with developed vegetation, most of the existing anti-bite optical cables cannot produce the expected anti-bite effect. In terms of bite performance, most optical cables use physical strengthening methods, but they can cure the symptoms but not the root cause, and are still prone to damage after long-term use, while chemical anti-bite optical cables mostly use the method of adding synthetic capsaicin, which is used in optical cables. It is easy to diffuse and volatilize in the process, resulting in a short validity per...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problems that the existing optical cables generally do not have the anti-biting performance or the anti-biting performance is poor, and the service life of the existing electric stimulation anti-biting optical cables still needs to be improved, the present invention provides an anti-biting optical cable

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