CN221746903U - A JHS rubber waterproof flexible cable with rated voltage 0.6/1kV - Google Patents

Abstract

The utility model relates to a rated voltage 0.6/1kV JHS type rubber waterproof flexible cable, which comprises a cable core, wherein the cable core comprises a conductive wire core, the center of the conductive wire core is a conductor, a first water blocking belt is wrapped outside the conductor at the center of the conductive wire core, an insulating layer is wrapped outside the first water blocking belt in an extrusion mode, the conductive wire core is concentrically twisted to form the cable core, a filling rope is filled between the conductive wire cores, a second water blocking belt is wrapped outside the cable core, a waterproof layer is wrapped outside the second water blocking belt in an extrusion mode, gaps between the cable cores are filled in the extrusion mode of the waterproof layer, an outer sheath is wrapped outside the waterproof layer in an extrusion mode, and a braiding layer is further arranged between the waterproof layer and the outer sheath. The cable can effectively prevent moisture from immersing into the cable, and can be used underwater.

Description

A JHS rubber waterproof flexible cable with rated voltage 0.6/1kV

Technical Field

The present application relates to the technical field of cables, and in particular to a JHS type rubber waterproof flexible cable with a rated voltage of 0.6/1 kV.

Background Art

There are generally two types of faults that occur during the use of conventional cables: overload and water ingress. Overload can generally be protected by overload protection equipment. Because water ingress into cables is highly concealed and difficult to detect, it causes the greatest harm. After water ingress into cables, "water tree aging" will occur under the action of electromagnetic fields. It is only a matter of time before the cables are damaged, which will eventually lead to cable breakdown and unusability. New cables can only be laid to replace them, causing huge economic losses.

The utility model invention with publication number CN202650695U discloses a longitudinal waterproof power cable, including a cable core, the cable core including a conductive core, the center of the conductive core is a conductor, the outer side of the conductor in the center of the conductive core is wrapped with a water-blocking tape, the outer side of the water-blocking tape is extruded with an EPDM rubber insulation layer, the conductive core is concentrically twisted, the outer side of the cable core is wrapped with a water-blocking tape, the outer side of the water-blocking tape is extruded with a waterproof layer, the waterproof layer fills the gap between the cable cores when extruded, and the outer side of the waterproof layer is extruded with an outer sheath.

The existing waterproof cables have limited waterproof effects and are prone to cable breakdown.

Summary of the invention

The purpose of the embodiment of the present application is to provide a JHS type rubber waterproof flexible cable with a rated voltage of 0.6/1 kV, so as to solve the problem that the existing waterproof cables have poor waterproof effect.

To achieve the above objectives, this application provides the following technical solutions:

An embodiment of the present application provides a JHS type rubber waterproof flexible cable with a rated voltage of 0.6/1kV, comprising a cable core, the cable core comprising a conductive core, the center of the conductive core being a conductor, a filling rope being filled between the conductive cores, a first water-blocking tape being wrapped around the outside of the conductor at the center of the conductive core, an insulating layer being extruded outside the first water-blocking tape, the conductive cores being concentrically twisted to form a cable core, a second water-blocking tape being wrapped around the outside of the cable core, a waterproof layer being extruded around the outside of the second water-blocking tape, the gaps between the cable cores being filled when the waterproof layer is extruded, an outer sheath being extruded around the outer side of the waterproof layer, and a braided layer being further arranged between the waterproof layer and the outer sheath.

The conductor is formed by twisting a plurality of copper wires of the fifth type of soft copper conductor in the same direction, and water-blocking yarn is filled in gaps between the copper wires twisted in the same direction.

The braided layer is embedded in the outer sheath.

Compared with the prior art, the beneficial effects of the utility model are:

A waterproof layer is provided on the outside of the cable core, which includes a water-blocking tape and an extruded waterproof layer. The water-blocking tape is wrapped around the cable core, and the water-blocking tape absorbs water and expands, which can prevent water from continuing to invade radially and protect the cable from damage. The extruded waterproof layer is extruded on the water-blocking tape and fills the gap between the cables. The material is EPDM, which is completely sealed in the circumferential direction, and can achieve a good water-blocking effect to prevent the cable from being damaged. When the conductor is twisted, water-blocking yarn is filled to further improve the waterproof performance. In addition, the braided layer is embedded in the outer sheath to improve its tearing strength while ensuring the flexibility of the cable.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic cross-sectional view of the utility model as a whole.

DETAILED DESCRIPTION

The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

The terms "comprises," "comprising," or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

The terms "first", "second", etc. are only used to distinguish one entity or operation from another entity or operation, and should not be understood as indicating or implying relative importance, nor should they be understood as requiring or implying any such actual relationship or order between these entities or operations.

Please refer to Figure 1. The cable core in this embodiment includes a conductive core. The center of the conductive core is a conductor 1. The outer side of the conductor 1 in the center of the conductive core is wrapped with a first water-blocking tape 3. The first water-blocking tape 3 is extruded with an insulating layer 4. The conductive cores are concentrically twisted to form a cable core. Filling ropes 5 are filled between the conductive cores. The outer side of the cable core is wrapped with a second water-blocking tape 6. The outer side of the second water-blocking tape 6 is extruded with a waterproof layer 7. The waterproof layer 7 fills the gaps between the cable cores when extruded. The outer side of the waterproof layer 7 is extruded with an outer sheath 9. A braided layer 8 is also provided between the waterproof layer 7 and the outer sheath 9. The conductor 1 is formed by twisting a plurality of copper wires of the fifth type of soft copper conductor in the same direction, and the gaps between the copper wires twisted in the same direction are filled with water-blocking yarn 2. The braided layer 8 is embedded in the outer sheath 9. The water-blocking tape layer outside the cable core can absorb water and swell to prevent moisture from continuing to penetrate. When the extruded water-blocking layer is extruded, a large pressure will be generated, which will fill the gaps in the cable and make the cable achieve water-blocking effect.

The above description is only an embodiment of the present application and is not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the scope of protection of the present application.

Claims (1)

1. The waterproof flexible rubber cable with the rated voltage of 0.6/1kV JHS is characterized by comprising a cable core, wherein the cable core comprises a conductive wire core, the center of the conductive wire core is a conductor, a first water blocking tape is wrapped outside the conductor at the center of the conductive wire core, an insulating layer is wrapped outside the first water blocking tape in an extrusion mode, the conductive wire cores are concentrically twisted to form the cable core, a filling rope is filled between the conductive wire cores, a second water blocking tape is wrapped outside the cable core, a waterproof layer is wrapped outside the second water blocking tape in an extrusion mode, a gap between the cable cores is filled when the waterproof layer is wrapped in an extrusion mode, an outer sheath is wrapped outside the waterproof layer in an extrusion mode, and a braiding layer is further arranged between the waterproof layer and the outer sheath;

The conductor is formed by twisting a plurality of copper wires of the 5 th soft copper conductor in the same direction, and water blocking yarns are filled among gaps formed by twisting the copper wires in the same direction;

The braid is embedded within the outer sheath.