Self-supporting-layer stranding type anti-rat-bite cable and manufacturing method thereof

Abstract

The invention relates to a self-supporting-layer stranding type anti-rat-bite cable and a manufacturing method thereof. The cable comprises a cable core and an outer sheath. The cable core is a layered stranding type cable core; an inner sheath coats the outsides of the layered stranding type cable core; and an anti-biting pecking-resistant splicing layer is arranged outside the inner sheath. Flat FRP strips are arranged and spliced along the circumferential direction of the inner sheath and to form the anti-biting pecking-resistant splicing layer. And the outer sheath coats the outside of the anti-biting pecking-resistant splicing layer. According to the invention, the flat FRP strips are distributed at the outer layer of the cable core densely, so that the cable has the good anti-biting pecking-resistant performance. The flat FRP strips as self-supporting tensile elements are combined with the outer sheath to form a composite outer protection layer; and the outer protection layer not only has the excellent anti-biting pecking-resistant performance but also has the high tensile capability and anti-compression capability, so that the self-supporting performance of the cable is improved. Moreover, the cable has advantages of simple and reasonable structure, large fiber capacity, excellent protection performance, high cable flexibility, and excellent bending performance is easy to use and lay; with the inner sheath, the cable fusion is realized conveniently; and the cable is convenient to manufacture and pollution on the environment is avoided.

Description

technical field [0001] The invention relates to a self-supporting twisted anti-rat-biting optical cable and a manufacturing method thereof, belonging to the technical field of optical communication transmission. Background technique [0002] The self-supporting tensile elements used for self-supporting non-metallic optical cables are usually spun fibers. After laying, these optical cables will be bitten and attacked by various rodents and some birds, thus gradually losing their self-supporting ability. Using glass fiber yarn as the tensile element of the optical cable, although it has a certain anti-rat ability, but as a self-supporting tensile element, because it cannot be a whole by itself, once the outer sheath is damaged, its self-supporting tensile ability will drop sharply, and Not resistant to puncture by rodent teeth. The glass fiber tape is used to prevent rats, and the hardness and thickness of the material are limited. The optical cable made of it is stiff, and t...

AI Technical Summary

Problems solved by technology

Using glass fiber yarn as the tensile element of the optical cable, although it has a certain anti-rat ability, but as a self-supporting tensile element, because it cannot be a whole by itself, once the outer sheath is damaged, its self-supporting tensile ability will drop sharply, and Not resistant to puncture by rodent teeth

The glass fiber tape is used to prevent rats, and the hardness and thickness of the material are limited. The optical cable made of it is stiff, and the bending radius of the optical cable reel is particularly large, which brings inconvenience to use and laying.

Adding capsicum to the sheath to prevent rodents will not only produce a lot of irritating odors during production, pollute the surrounding air, and seriously affect the normal work of production personnel, but with the gradual diffusion of additives, the rodent-proof performance will also increase. drop with it

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