CN216119677U

CN216119677U - Crosslinked polyolefin insulation aluminum alloy power cable

Info

Publication number: CN216119677U
Application number: CN202120299954.2U
Authority: CN
Inventors: 林培鸿; 林俊松
Original assignee: SHENZHEN YONGSHENGFA CABLE INDUSTRY DEVELOPMENT CO LTD
Current assignee: SHENZHEN YONGSHENGFA CABLE INDUSTRY DEVELOPMENT CO LTD
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2022-03-22
Anticipated expiration: 2031-02-02

Abstract

The utility model relates to the technical field of flame retardance of power cables, and discloses a cross-linked polyolefin insulated aluminum alloy power cable which comprises the following components in parts by weight: conductive wire core, conductive wire core's outside parcel in proper order is equipped with the insulating layer, modified layer and shielding layer, conductive wire core establishes to three, and three conductive wire cores all set up in wear-resisting interior sleeve pipe, and wear-resisting interior sleeve pipe intussuseption is filled with the insulating material who is used for proceeding the design to three conductive wire cores, is equipped with at least one installation cavity in the insulating material, is equipped with high elasticity rebound rope in the installation cavity, and wear-resisting interior sheathed tube outside parcel in proper order has set up wear-resisting inlayer, fire-retardant layer, low temperature resistant layer and insulating wear-resisting skin. The utility model improves the fire resistance and the corrosion resistance of the power cable.

Description

Crosslinked polyolefin insulation aluminum alloy power cable

Technical Field

The utility model relates to the technical field of flame retardance of power cables, in particular to a cross-linked polyolefin insulated aluminum alloy power cable.

Background

With the rapid development of national economy, the copper resource consumption in China is getting larger and larger, and the copper resource consumption is the first copper resource consumption country in the world. According to statistical data, the current global copper resource reserves are insufficient, and the copper resources in China are not sustainable. In order to promote the sustainable development of the national industry and save national strategic resources, an aluminum alloy conductor power cable is developed for advocating aluminum-copper strips and responding to the call of a resource-saving society established by the twelve and five countries.

In the prior art, the cable can have insulation breakdown phenomenon in the process of power transmission, namely when the voltage born by the insulating layer exceeds a certain degree, or the insulating layer generates great leakage current under the action of external voltage to generate heat, the insulating layer is damaged by factors such as heat generation promotion dissociation and electrochemical reaction, and the insulating layer loses insulating property and conducts electricity. In addition, conventional power cables have low fire resistance.

Therefore, how to provide a cross-linked polyolefin insulated aluminum alloy power cable to improve the fire resistance and corrosion resistance of the power cable is a technical problem to be solved urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a cross-linked polyolefin insulated aluminum alloy power cable to improve the fire resistance and the corrosion resistance of the power cable.

To this end, according to a first aspect, an embodiment of the present invention discloses a cross-linked polyolefin insulated aluminum alloy power cable, including: conductive core, conductive core's outside parcel in proper order is equipped with insulating layer, modified layer and shielding layer, conductive core establishes to three, three conductive core all sets up in wear-resisting interior sleeve pipe, wear-resisting interior sleeve pipe intussuseption is filled with and is used for three conductive core carries out the insulating material of stereotyping, be equipped with at least one installation cavity in the insulating material, be equipped with high elasticity rebound rope in the installation cavity, wear-resisting interior sheathed tube outside parcel in proper order has set up wear-resisting inlayer, fire-retardant layer, low temperature resistant layer and the wear-resisting skin of insulation.

Optionally, the modification layer is a silicone rubber material.

Optionally, the flame retardant layer is a polyolefin material.

Optionally, the low temperature resistant layer is a low temperature resistant TPE material.

Optionally, the insulating wear-resistant outer layer is provided with a stop block, and the cross section of the stop block is arranged in an arc shape.

Optionally, the conductive wire core is made of an aluminum alloy material.

The utility model has the following beneficial effects: the shielding layer can homogenize an electric field, so that the cable can safely and stably run under high field intensity and can bear impact voltage, the insulating material is matched with the high-elasticity rebound rope, static electricity generated by sliding of the conductive wire core and deformation of the high-voltage insulating cable can be prevented, the flame can be prevented from igniting the cable by the flame retardant layer, the modified layer is corrosion-resistant and moisture-resistant, and further the fire resistance and the corrosion resistance of the power cable are improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of a cross-linked polyolefin insulated aluminum alloy power cable disclosed in this embodiment.

Reference numerals: 1. a conductive wire core; 2. an insulating layer; 3. a modified layer; 4. a shielding layer; 5. a wear-resistant inner sleeve; 6. an insulating material; 7. a high elastic resilient cord; 8. an armor layer; 9. a wear resistant inner layer; 10. a flame retardant layer; 11. a low temperature resistant layer; 12. an insulating wear-resistant outer layer; 13. and a stop block.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be communicated with each other inside the two elements, or may be wirelessly connected or wired connected. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

The embodiment of the utility model discloses a cross-linked polyolefin insulated aluminum alloy power cable, as shown in figure 1, comprising: conductive wire core 1, conductive wire core 1's outside parcel in proper order is equipped with insulating layer 2, modified layer 3 and shielding layer 4, conductive wire core 1 establishes to three, three conductive wire core 1 all sets up in wear-resisting interior sleeve pipe 5, wear-resisting interior sleeve pipe 5 intussuseption is filled with insulating material 6 that is used for stereotyping three conductive wire core 1, be equipped with at least one installation cavity in the insulating material 6, be equipped with high elasticity rebound rope 7 in the installation cavity, wear-resisting interior sleeve pipe 5's outside parcel in proper order has set up wear-resisting inner layer 9, fire-retardant layer 10, low temperature resistant layer 11 and insulating wear-resisting outer 12.

It should be noted that the shielding layer 4 of the present invention can act as a homogenized electric field, so that the cable can run safely and stably under high field intensity, and can also bear impact voltage, the insulating material 6 and the high elastic resilient cord 7 are used in cooperation, so as to prevent the conductive wire core 1 from sliding to generate static electricity and prevent the high voltage insulated cable from deforming, the flame retardant layer 10 prevents flame from igniting the cable, and the modified layer 3 is corrosion-resistant and moisture-resistant, thereby providing a cross-linked polyolefin insulated aluminum alloy power cable, and improving the fire resistance and corrosion resistance of the power cable.

As shown in fig. 1, the modified layer 3 is a silicone rubber material.

As shown in fig. 1, the flame retardant layer 10 is a polyolefin material.

As shown in fig. 1, the low temperature resistant layer 11 is a low temperature resistant TPE material.

As shown in fig. 1, the insulating wear-resistant outer layer 12 is provided with a stopper 13, and the stopper 13 is provided with an arc-shaped cross section.

As shown in fig. 1, the conductive core 1 is made of an aluminum alloy material.

The working principle is as follows: the shielding layer 4 can homogenize an electric field, so that the cable can safely and stably run under high field intensity and can bear impact voltage, the insulating material 6 is matched with the high-elasticity rebound rope 7 in use, static electricity generated by sliding of the conductive wire core 1 and deformation of the high-voltage insulated cable can be prevented, flame is prevented from igniting the cable by the flame retardant layer 10, and the modified layer 3 is corrosion-resistant and moisture-resistant, so that the cross-linked polyolefin insulated aluminum alloy power cable is provided, and the fire resistance and corrosion resistance of the power cable are improved.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.

Claims

1. A cross-linked polyolefin insulated aluminum alloy power cable comprising: the cable comprises conductive wire cores (1), wherein the outer portion of each conductive wire core (1) is sequentially wrapped with an insulating layer (2), a modification layer (3) and a shielding layer (4), the number of the conductive wire cores (1) is three, the conductive wire cores (1) are all arranged in a wear-resistant inner sleeve (5), the wear-resistant inner sleeve (5) is filled with an insulating material (6) for shaping the three conductive wire cores (1), at least one installation cavity is arranged in the insulating material (6), a high-elasticity rebound rope (7) is arranged in the installation cavity, the outer portion of the wear-resistant inner sleeve (5) is sequentially wrapped with an armor layer (8), a wear-resistant inner layer (9), a flame-retardant layer (10), a low-temperature-resistant layer (11) and an insulating wear-resistant outer layer (12), a stop block (13) is arranged on the insulating wear-resistant outer layer (12), and the cross section of the stop block (13) is arranged in an arc shape, the conductive wire cores (1) and the high-elasticity rebound ropes (7) are arranged in a staggered mode.

2. The cross-linked polyolefin insulated aluminum alloy power cable of claim 1, wherein the modification layer (3) is a silicone rubber material.

3. A cross-linked polyolefin insulated aluminium alloy power cable according to claim 1, characterized in that the flame retardant layer (10) is a polyolefin material.

4. A cross-linked polyolefin insulated aluminium alloy power cable according to claim 1, characterized in that the low temperature resistant layer (11) is a low temperature resistant TPE material.

5. A cross-linked polyolefin insulated aluminium alloy power cable according to any one of claims 1 to 4, characterized in that the conductive core (1) is made of an aluminium alloy material.