Special-shaped FRP armored nonmetal anti-rodent optical cable and processing process thereof

Abstract

The invention discloses a special-shaped FRP armored nonmetal anti-rodent optical cable and a processing process thereof. The special-shaped FRP armored nonmetal anti-rodent optical cable comprises acable core, a special-shaped FRP rod armored layer and an outer sheath layer. The cable core is externally wrapped by the special-shaped FRP rod armored layer; the special-shaped FRP rod armored layeris externally wrapped by the outer sheath layer; and the special-shaped FRP rod armored layer is in a tube structure formed by stranding a plurality of fan-shaped FRP rods. The special-shaped FRP armored nonmetal anti-rodent optical cable enables rodent to have no bite acting point, and can achieve anti-tension, anti-side pressure, anti-retraction, anti-impact and moisture-proof functions and thelike; and the processing process of the special-shaped FRP armored nonmetal anti-rodent optical cable is simple and easy to realize.

Description

technical field [0001] The invention relates to the technical field of communication optical cables, in particular to a special-shaped FRP armored non-metallic anti-rodent optical cable and its processing technology. Background technique [0002] There are more and more communication optical cables being erected, and more and more communication optical cables are entering forests, mountainous areas and other areas where rodent disasters are serious. Rodents, because their incisors are well developed and will continue to grow, and some rodents have the habit of biting objects to keep their teeth sharp, and the specific gas contained in the sheath of communication optical cables makes them frequent objects of biting , Therefore, communication optical cable lines are often bitten by rodents in some occasions, which affects the communication quality and even leads to communication interruption. [0003] At present, there are two kinds of anti-rodent methods for domestic optical...

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Problems solved by technology

[0004] The chemical method is to add anti-rodent drugs or additives to the cable sheath material. This method has the advantages of low cost and relatively simple production process, but it will produce some harmful pollution to humans and the environment during the processing process. At the same time, the sheath The drugs or additives added to the material will gradually dissociate over time, thus affecting the anti-rodent life of the optical cable, and the dissociated drugs or additives will pollute the environment, which is not conducive to environmental protection

[0005] And physical method usually adopts the mode of armor protection, has two kinds of metal armor and non-metal armor, makes it difficult for rodent teeth to bite through it, thereby reaches the purpose of protecting the optical cable in the armor layer, in the known optical cable In the anti-bite test, high-strength steel strips have a better anti-bite effect, but at the same time, some studies have shown that the bite marks will aggravate the corrosion of the steel strip exposed to the external environment, and most optical cables will be corroded in a short period of time.

[0006] At present, there are mainly FRP armoring methods for non-metallic armored optical cables. Several round rods are twisted to form a round and tight armor, so as to achieve the purpose of preventing rodents from biting. However, in this method, each FRP There is basically line contact between them, and the contact area is small. At the same time, the circular FRP structure provides a strong point for rodents to bite. Once the outer sheath is damaged, it is difficult for FRP to ensure that it will not be damaged after being bitten for a long time.

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