Preparation method of interlocking armored water-blocking cable based on composite water-blocking material

Abstract

The invention discloses a preparation method of an interlocking armored water-blocking cable based on a composite water-blocking material. The preparation method comprises the following steps: S1, preparing the composite water-blocking material for later use; S2, prefabricating a water-blocking wire core for later use; S3, after a specially-made aluminum alloy strip is pre-pressed into an S shape,prefabricating the specially-made aluminum alloy strip through a special device for standby application; S4, twisting a plurality of water-blocking wire cores into a cable, wrapping the plurality ofwater-blocking wire cores by a water-blocking tape, and filling the space between the water-blocking tape and the water-blocking wire core with a composite water-blocking material; and S5, wrapping the outer surface of the water-blocking tape with a first water-blocking yarn in a winding manner, wrapping the outer surface of the first water-blocking yarn with an armor layer, sequentially wrappingthe outer surface of the armor layer with a second water-blocking yarn and an outer protective layer, and wrapping the outer surface of the outer protective layer with a super-hydrophobic surface to obtain the interlocking armored water-blocking cable. According to the invention, the specially-made aluminum alloy tape structure design and the composite water-blocking material are utilized so thatthe wrapped armor layer not only has cable structure protection, but also has certain water-blocking performance, thereby improving the water-blocking performance of the water-blocking cable.

Description

technical field [0001] The invention relates to the technical field of cables, in particular to a method for preparing an interlocking armored water-blocking cable based on a composite water-blocking material. Background technique [0002] With the large-scale use of cross-linked cables, the accidents of insulation water tree aging and cable breakdown due to the infiltration of moisture in the surrounding environment into the cable are increasing year by year. More and more users are in urgent need of a cable with good water resistance. So water-blocking cables came into being. [0003] Water-blocking cables generally add water-blocking powder and water-blocking yarn between the monofilaments of the stranded conductor during the single-filament twisting process. With further penetration, it can maintain normal operation in water for a long time, effectively ensuring the safety performance of insulation and electricity use. [0004] However, the water-blocking performance o...

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Problems solved by technology

[0004] However, the water-blocking performance of the water-blocking cable plays a vital role in whether it can operate normally in water. However, the existing water-blocking cables still have certain deficiencies in the water-blocking performance. The water-blocking performance must be weakened when the water is waterproof. Therefore, a new type of water-blocking cable is needed to improve the weakness of the water-blocking performance of the existing water-blocking cables.

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