Ruiyang Group Various Types Of LV Rodent-Proof Electrical Cable

Various Types Of LV Rodent-Proof Electrical Cable

Due to ecological protection and economic factors, it is not suitable to take measures such as poisoning and killing to prevent rats on optical cable lines, nor to take measures such as burial depth to prevent rats as directly buried optical cables. Therefore, the current rat prevention measures for optical cables still need to rely on the structural design and material changes of optical cables. Conventional rodent prevention schemes include adding chemical components to the sheath and using multi-layer sheath armor.

The structure of double-layer metal armor is used for overhead rat prevention. The weight and outer diameter of the optical cable are large, which will increase the requirements for overhead towers and increase the cost of optical cable lines. Another feasible structure is to adopt the scheme of stainless steel strip, but if the stainless steel strip is cut and coated; The method of adding chemical components is to add capsaicin to the sheath of optical cable. Capsaicin was originally a chemical substance extracted from natural substances such as pepper. It was found in mouse experiments that mice are sensitive to capsaicin, so it has been considered as an effective rat repellent. The commercial capsaicin sheath material is a similar chemical synthetic material added to the polyethylene sheath in a certain proportion.

Since the additives may have water solubility and migration problems, it is necessary to investigate their migration and water solubility effects in the sheath in order to determine the rat repellent effect of this kind of optical cable; Glass fiber rat proof.

Because the glass fiber is very thin and fragile, in the process of rodent biting, the crushed glass slag will hurt the rodent's mouth, making it afraid of the optical cable, so as to achieve the effect of rat prevention; Optical cable rat bite: the high-strength steel belt has a good rat prevention effect, but at the same time, some studies have shown that the rat bite marks aggravate the corrosion of the steel belt exposed to the external environment, and most optical (electric) cables will be eroded in a short time, which is the reason why it is best to adopt the stainless steel belt.

The price of optical cable with stainless steel strip will greatly increase the fixed investment of telecommunication facilities, and find an economic steel strip material with better corrosion resistance and strength to replace the current conventional corrosion-resistant chromium plated steel strip; The structure of surrounding steel wire (or non-metallic reinforcement GRP) is used to prevent rats, but the small GRP rod (belt) is soft and difficult to withstand rat bites. At the same time, the cost of optical cable will also exceed that of glass fiber structure.

The steel wire wrapping and the sheath structure with steel wire will greatly increase the weight of the optical cable and increase the bearing load of the tower; If corrosion-resistant low-carbon steel wire is used, the optical cable will be very rigid and difficult to retain, which is not conducive to overhead laying; If the ordinary high carbon steel wire structure is adopted, the corrosion resistance of the optical cable becomes extremely poor. Therefore, these optical cable structures are not suitable for the current operation and maintenance of optical cable lines.

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