CN202076043U - Novel low-voltage electric cable - Google Patents

Abstract

The utility model provides a novel low-voltage electric cable which consists of a conductor wire core, a wrapping layer and a functional external layer which are sequentially arranged from inside to outside; the functional external layer consists of 1-3 layers; the conductor wire core consists of two phase wires and a grounding wire; the phase wires consist of conductors and insulating layers covered outside the conductors; and the grounding wire is a bare conductor. The electric cable provided by the utility model is not provided with a filling layer, the traditional electric cable design manner with a round structure is changed, and the grounding wire conductor adopts a uninsulated bare conductor, however, the performance of the electric power cable of the traditional design can also be realized, and the outside diameter of the electric cable can be reduced, so that the cost for processing the electric cable is greatly saved, material are saved, and the environment is protected.

Description

A New Type of Low Voltage Cable

technical field

The invention belongs to the field of wires and cables, and in particular relates to a novel low-voltage cable.

Background technique

With the rapid development of wire and cable, not only the performance requirements of the cable are getting higher and higher, so the material selection of the cable is also getting higher and higher, and the new structural design of the cable is required to meet more excellent performance. Material saving to meet environmental protection requirements, and reduce the production cost of cables in the fierce competition.

Cables with traditional structural design require fillers to be used in the cables. This is to ensure the roundness of the cables, but it has no effect on the performance of the cables. Although the filler layer serves the purpose of filling and rounding, it will cause waste of materials. And increase the cost of the cable, and is not conducive to environmental protection requirements. The insulation performance of the ground wire of the cable is not tested, and the extrusion of the insulation material on the ground wire will cause material waste.

Contents of the invention

The purpose of this utility model is to provide a new type of low-voltage cable, which can not only ensure the performance of the cable, but also save materials and save the production cost of the cable.

The utility model adopts the following technical solutions: a new type of low-voltage cable, which is composed of a conductor core, a wrapping layer, and a functional outer layer from the inside to the outside, and the functional outer layer is composed of 1 to 3 layers. The conductor core is composed of two phase wires and a ground wire, the phase wire is composed of a conductor and an insulating layer covering the conductor, and the ground wire is a bare conductor.

The functional outer layer is one layer of outer sheath.

The functional outer layer is two layers, which are an inner sheath layer and an armor layer from the inside to the outside.

The functional outer layer is 3 layers, which are inner sheath layer, armor layer and outer sheath layer from inside to outside.

The armoring method of the armoring layer is aluminum alloy tape chain armoring.

In the above technical solution, the conductor core is composed of a phase wire and a ground wire, the phase wire is composed of a conductor core and an insulating layer, and the ground wire is a bare conductor. When the phase wire and the ground wire are twisted into cables, no filling is required, and they can be wrapped, extruded or armored.

Beneficial effect:

1. The use of bare conductors for the ground wire will not affect the performance and use of the cable, and can save cable materials and reduce production costs.

2. Filling is not used when the phase wire and the ground wire are twisted into cables. Although the appearance of the cable is not very round, the outer diameter of the cable can be reduced, and the performance of the cable will not be affected in any way, so the waste of materials can be saved. Reduce production costs and meet environmental protection requirements.

Description of drawings

Figure 1 is a schematic cross-sectional view of Example 1.

2 is a schematic cross-sectional view of Embodiment 2.

3 is a schematic cross-sectional view of Embodiment 3.

4 is a schematic cross-sectional view of Embodiment 4.

Detailed ways

A new type of low-voltage cable, which is composed of a conductor core, a wrapping layer 4, and a functional outer layer from the inside to the outside. The functional outer layer is composed of 1 to 3 layers, and the conductor core is composed of two The phase wire is composed of a ground wire, the phase wire 1 is composed of a conductor and an insulating layer 3 covering the conductor, and the ground wire 2 is a bare conductor.

One solution is: the functional outer layer is an outer sheath layer 7 .

Preferably, the functional outer layer is two layers, and the inner sheath layer 5 and the armor layer 6 are in sequence from the inside to the outside.

More preferably: the functional outer layer is 3 layers, which are the inner sheath layer 5, the armor layer 6 and the outer sheath layer 7 sequentially from the inside to the outside.

The armoring method of the armoring layer 6 is aluminum alloy tape chain armoring.

Example 1

See Figure 1, a new type of low-voltage cable, from the inside to the outside is the conductor core, the wrapping layer 4, the inner sheath layer 5, the armor layer 6, and the outer sheath layer 7. The conductor core is composed of two phase wires 1 and one ground wire 2, and the phase wire 1 is composed of a conductor and an insulating layer 3 covering the conductor.

Example 2

See Figure 2, a new type of low-voltage cable, from the inside to the outside is the conductor core, the wrapping layer 4, the armor layer 6, and the outer sheath 7. The conductor core is composed of two phase wires 1 and one ground wire 2, and the phase wire 1 is composed of a conductor and an insulating layer 3 covering the conductor.

Example 3

Referring to Fig. 3, a new type of low-voltage cable consists of conductor core, wrapping layer 4, inner sheath layer 5, and armor layer 6 from the inside to the outside. The conductor core is composed of two phase wires 1 and one ground wire 2, and the phase wire 1 is composed of a conductor and an insulating layer 3 covering the conductor.

Example 4

   Referring to Fig. 4 , a new type of low-voltage cable is composed of conductor core, wrapping layer 4 and outer sheath layer 7 from inside to outside. The conductor core is composed of two phase wires 1 and one ground wire 2, and the phase wire 1 is composed of a conductor and an insulating layer 3 covering the conductor.

Claims (5)

1. A new type of low-voltage cable, characterized in that the cable is composed of a conductor core, a wrapping layer (4), and a functional outer layer from the inside to the outside, and the functional outer layer is composed of 1 to 3 layers. The conductor core is composed of two phase wires and one ground wire. The phase wire (1) is composed of a conductor and an insulating layer (3) covering the conductor, and the ground wire (2) is a bare conductor. 2. A new low-voltage cable according to claim 1, characterized in that the functional outer layer is a layer of outer sheath (7). 3. A new type of low-voltage cable according to claim 1, characterized in that the functional outer layer is 2 layers, which are the inner sheath layer (5) and the armor layer (6) from the inside to the outside. 4. A new type of low-voltage cable as claimed in claim 1, characterized in that the functional outer layer is 3 layers, which are the inner sheath layer (5), the armor layer (6) and the outer sheath layer from the inside to the outside. layer (7). 5. A new type of low-voltage cable according to claim 3 or 4, characterized in that the armoring method of the armor layer (6) is aluminum alloy tape chain armoring.

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