Power cable high in water blocking performance

Abstract

A power cable with high water-blocking performance proposed by the present invention includes: a cable core, a water-blocking filler, an armor layer and an outer sheath; the cable core includes three wire cores twisted with each other. The center line of the wire core is in the shape of an equilateral triangle. The wire core includes the wire in the middle, the insulating layer extruded outside the wire, the shielding layer wrapped around the insulating layer, the waterproof buffer layer wrapped around the shielding layer, and the extruded The inner sheath outside the waterproof buffer layer is filled between the water-blocking filler and the wire core, the armor layer is wrapped on the outer periphery of the water-block filler, and the outer sheath is wrapped on the outer periphery of the armor layer. The shielding layer is made of aluminum-plastic composite tape; the waterproof buffer layer is made of water-blocking tape, the inner sheath is made of polyethylene polymer material, the armor layer is made of steel tape, and the outer sheath is made of high Made of wear-resistant and water-resistant materials. The water-blocking power cable proposed by the invention has a compact structure and a large carrying capacity, and can effectively prevent moisture from penetrating into the cable and causing a short circuit.

Description

technical field [0001] The invention relates to the field of electrical equipment, in particular to a power cable with high water resistance. Background technique [0002] Electrical equipment includes primary equipment and secondary equipment, and cables belong to secondary equipment in electrical equipment. With the continuous development of our country's economy, the application range of cables is getting wider and wider, and their performance requirements are getting higher and higher. The traditional cable structure is loose, and the carrying capacity per unit area is small. In rainy and snowy weather, water molecules can easily enter the interior of the cable, resulting in a short circuit, affecting the stability of power transmission, and endangering the lives and property of citizens. The above problems urgently need to be solved. Contents of the invention [0003] Based on the technical problems existing in the background technology, the present invention propos...

AI Technical Summary

Problems solved by technology

The traditional cable structure is loose, and the carrying capacity per unit area is small. In rainy and snowy weather, water molecules can easily enter the cable, which will lead to short circuit, affect the stability of power transmission, and endanger the lives and property of citizens.

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