Double-core cable for pipeline

Abstract

The invention discloses a double-core cable for a pipeline which comprises a center strengthening member which is located at the center portion and is formed by glass fiber filament bundling, a first conductor, a first isolating body, a second conductor and a second isolating body which is closely attached to the center strengthening member, and the center strengthening member, the first conductor, the first isolating body, the second conductor and the second isolating body are connected sequentially. In an arbitrary cross-section, the upper surfaces of the first conductor, the second conductor, the first isolating body and the second isolating body and the lower surfaces of the first conductor, the second conductor, the first isolating body and the second isolating body bend toward the center of the center strengthening member and the curvatures of the upper surfaces are equal to the curvatures of the lower surfaces; in an arbitrary cross-section, the upper surfaces of the first conductor, the first isolating body, the second conductor and the second isolating body are located at the same circumference, the peripheries of the first conductor, the second conductor, the first isolating body and the second isolating body are sequentially wrapped by a shielding layer and a protection sheath, and the shielding layer comprises an aluminum sheath and a first copper wire braiding mesh and a second copper wire braiding mesh, wherein the first copper wire braiding mesh and the second copper wire braiding mesh are closely attached to the aluminum sheath from the two sides of the aluminum sheath. The double-core cable for the pipeline is simple in structure, good in flexibility and strong in anti-interference ability.

Description

technical field [0001] The invention relates to the technical field of power cables, in particular to a twin-core cable for pipelines. Background technique [0002] Cables for pipelines are usually called special cables, and the reason why they are called special cables is because they often need to pass through curved pipelines of tens of meters or even hundreds of meters in their use environment, so they are required to have good bending performance and tensile strength. At the same time, due to the dense layout of cables for pipelines, good shielding performance is required. In the prior art, in order to obtain good shielding performance and tensile strength, it is often used to strengthen the thickness of the shielding layer and increase the diameter of the core and the thickness of the protective jacket, which leads to the cable being too thick, the bending performance is reduced, and the manufacturing cost and construction The cost is too high. Contents of the inve...

AI Technical Summary

Problems solved by technology

In the prior art, in order to obtain good shielding performance and tensile strength, it is often used to strengthen the thickness of the shielding layer and increase the diameter of the core and the thickness of the protective jacket, which leads to the cable being too thick, the bending performance is reduced, and the manufacturing cost and construction cost too high

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