Nonmetal rat-proof optical cable and manufacturing method thereof

Abstract

The invention belongs to the technical field of optical cables, and discloses a nonmetal rat-proof optical cable, which is provided with a plurality of optical fibers, a loose tube (2), a first protective layer (3) and a second protective layer (6), and is characterized by also comprising an inner cushion layer (4) and a rat-proof component, the inner cushion layer is tightly attached to the first protective layer, and the rat-proof component coats the outside of the inner cushion layer; the rat-proof component is composed of a rat-proof base layer (5), a plurality of convex bodies (51) and rat-proof objects (511), the convex bodies protrude upwards from the upper surface of the rat-proof base layer, and the rat-proof objects are located in the convex bodies; and the convex bodies are distributed on the rat-proof base layer at intervals in rows in the length direction of the rat-proof base layer, and the outer surfaces of the convex bodies are attached to the inner surface of the second protective layer in the non-metal rat-proof optical cable. The invention further discloses a manufacturing method of the optical cable. The following main beneficial effects are that: the structure is simpler, the manufacture is easier, the ratproof effect is better, the product structure is more stable and more reliable, and the ratproof cable is more suitable for multi-thunder areas, strong current occasions and severe environment occasions.

Description

technical field [0001] The invention belongs to the technical field of optical cables, and in particular discloses a non-metal anti-rat optical cable and a manufacturing method. Background technique [0002] With the development of the communication industry, more and more optical fiber cables are used. Optical cables are usually composed of loose tubes containing optical fibers, protective layers, and sheath layers. The protective layers are steel strips, aluminum strips, etc., and the sheath layer It is generally polyethylene or improved composite polyolefin. In order to strengthen the need for rodent protection, the sheath layer may also add rodent-proof materials. The main rodent-proof optical cables in the prior art are as follows. [0003] CN212135005U discloses a kind of armored optical cable with barbed steel wires. For the existing optical cable, the processing technology of stainless steel hose is complicated, but the optical cable cannot be bent naturally when th...

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Problems solved by technology

[0003] CN212135005U discloses a kind of armored optical cable with barbed steel wires. For the existing optical cable, the processing technology of stainless steel hose is complicated, but the optical cable cannot be bent naturally when the metal hard tube is used instead, and the metal layer is arranged on the inner layer of the optical cable so that the outer sheath is easy to bend. In order to solve the problem of damage, the following scheme is proposed, which includes multiple fiber bundles, loose tubes are fixedly installed at the ends of the fiber bundles, the same strengthening member is provided on the sides of multiple fiber bundles close to each other, and the multiple fiber bundles Arranged in a ring, multiple optical fiber bundles, strength members and loose tubes are combined to form an optical cable core. The barbs of the steel wire are beneficial to prevent climbing and biting of rodents, standing and pecking of birds. The barbs of the steel wire have It is beneficial to prevent human climbing and hacking, and can simplify the production process. The barbed armor of the steel wire is lower in hardness than the metal casing armor directly, and it has the advantages of natural bending with the cable core.

In the above-mentioned prior art, for the ADSS optical cable, as known to those in the technical field, it is generally used on overhead high-voltage power poles and towers. In fact, there are very few rats, and capsaicin is added in the rodent-proof outer protection. The irritating smell is emitted during the production process, which often brings discomfort to the operators. On the other hand, after adding capsaicin to the polyene-based sheath material, the spark machine can no longer be opened when the sheath is used, which cannot be effective. The thickness of the sheath is monitored online. If the spark machine is turned on, the impurities in the sheath will significantly reduce the insulation of the sheath. Under the same spark voltage, the sheath is often easily broken down, which brings serious damage to the product. hidden dangers of quality

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