Double-sheath structured degaussing cable

Abstract

The invention discloses a double-sheath structured degaussing cable comprising copper conductors which are arranged at the centermost of the cable. An isolation tape extrudes outside the copper conductors. A rubber insulating layer and a rubber internal sheath respectively extrude outside the isolation tape by adopting a double layer co-extrusion mode. Finally an external sheath formed by polyurethane with adding of a hydrolysis resistant agent and thickness of 0.375-0.525mm extrudes outside the rubber internal sheath. The double-sheath structure is adopted, and the external sheath adopts polyurethane material so that marine organism preventing performance of the cable is enhanced. Meanwhile, the cable is great in cable flexible performance, convenient for laying, great in water resistance performance and high in production efficiency of the product.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a double-sheath structure degaussing cable. Background technique [0002] The function of the degaussing cable is to demagnetize the ship. There are two types of fixed laying and mobile laying. Since this type of cable has been used in seawater environments for a long time, this type of cable has good weather resistance and salt spray resistance. The cables used can basically meet this requirement, but with the long-term use of the cables, the cables are very vulnerable to marine organisms or other microbial parasitic erosion, and are prone to breakdown, thereby reducing the service life of the cables. In order to solve this problem, in the prior art, the Chinese patent "201020174851.5" discloses a high-performance degaussing cable for ships, which adopts a double-layer sheath structure, that is, an inner sheath of neoprene and an outer sheath of irradiated cross-linked polyethyle...

AI Technical Summary

Problems solved by technology

[0004] 1. Cross-linked polyethylene is used as the outer sheath. Due to the hard material, the complete performance of the finished cable is poor, and its bending radius has reached more than 12 times, which is inconvenient for cable laying and use;

[0005] 2. The water blocking performance of the cable is poor, and the service life of the cross-linked polyethylene material is low in a seawater environment for a long time;

[0006] 3. Due to the need for cross-linking in the production process of cross-linked polyethylene materials, the production process is relatively complicated and the production efficiency is low. Due to the use of irradiation cross-linking, there is a certain amount of radiation damage, which has certain potential hazards to production personnel

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