Lightweight rodent-resistant optical cable

Abstract

The invention provides a lightweight anti-rodent optical cable, which includes a cable core, an inner sheath, an armored reinforcement layer and an outer sheath arranged sequentially from the inside to the outside; the armored reinforcement layer includes several reinforcements arranged at intervals , the reinforcement members are evenly distributed on the outer circumference of the inner sheath with the cable core as the center. Both the inner sheath and the outer sheath are HDPE sheaths. In the present invention, the strength members of the armor reinforcement layer are evenly arranged at certain intervals. Obviously, the number of armor reinforcement members used is much less than that in a close arrangement, the weight of the optical cable will be reduced a lot, and the production process is relatively simple. Secondly, At present, the size of the reinforcement commonly used in the market is more than 0.8mm. The reinforcement in the invention can use a reinforcement with a smaller diameter, and the amount of sheathing material used will be greatly reduced, which not only effectively reduces the cable heavier and more economical.

Description

technical field [0001] The invention belongs to the technical field of optical fiber transmission, and in particular relates to a lightweight mouse-proof optical cable. Background technique [0002] With the rapid development of the communication industry, communication optical cables are frequently attacked by rats in the actual environment, causing immeasurable losses. The rodent damage mentioned in the optical cable industry usually refers to the failure of optical cable function, shortened service life and communication interruption caused by the bite of rodents in the laying environment of the optical cable. Estimated losses; where rats generally refer to rodents that cause damage to such cables. [0003] At present, the anti-rodent methods used in communication optical cables include chemical anti-rat methods and physical anti-rat methods. The chemical anti-rat method refers to adding repellent substances to the cable sheath material to achieve the purpose of rodent ...

AI Technical Summary

Problems solved by technology

Using the chemical anti-rodent method, the structure of the optical cable does not change, the production cost is low, and the laying of the optical cable is the same as that of the ordinary optical cable; but from the perspective of environmental protection and anti-rat durability, the optical cable will volatilize a large amount of pungent gas and white smoke during the processing process. It will pollute the processing personnel and the environment. In addition, the capsicum will migrate from the sheath material and will be released, polluting the environment, and it is difficult to guarantee its anti-rat effect and effective time; therefore, this method is not recommended in the market at present.

[0004] There are two main types of physical rodent prevention methods. One is to use high-hardness metal materials to achieve the purpose of resisting rat bites, such as adding stainless steel tape armor, double-layer galvanized steel tape wrapping, and single thin round steel wire to optical cables. Armoring, etc.; steel tape armored optical cable is suitable for areas with mild rodent infestation, and has a certain anti-rat effect, but the production speed is slow and the cost is high; steel tape armored optical cable is suitable for areas with moderate rodent infestation. It has a certain anti-rodent effect, but the production speed is slow and the cost is high; the steel wire armored structural optical cable is suitable for areas with severe rodent infestation and has obvious anti-rat effect, but the production efficiency is low, the weight of the optical cable is heavy, and the cost is high

[0005] The other is to prevent rodents by using non-metallic materials, such as glass yarn armor, FRP armor, etc., which are suitable for areas with mild rodent infestation and have a certain effect of rodent protection, but the production speed is slow and the cost is high

Images