CN222867299U

CN222867299U - XL-PE insulated high-temperature-resistant high-end equipment cable

Info

Publication number: CN222867299U
Application number: CN202421804681.2U
Authority: CN
Inventors: 姚戌辰; 王晓龙; 蒋沈杰; 张凯滨; 黄建; 李超
Original assignee: Jiaxing Haitang Electronics Co ltd
Current assignee: Jiaxing Haitang Electronics Co ltd
Priority date: 2024-07-26
Filing date: 2024-07-26
Publication date: 2025-05-13
Anticipated expiration: 2034-07-26

Abstract

The utility model discloses an XL-PE insulated high-temperature-resistant high-end equipment cable which comprises a plurality of conductive wire cores, an insulating inner sheath, an XL-PE high-temperature-resistant layer, a ground wire, an aluminum foil shielding layer and an insulating outer sheath layer, wherein the insulating inner sheath is sleeved outside each conductive wire core, the XL-PE high-temperature layer is sleeved outside each insulating inner sheath, the ground wire is arranged between the conductive wire cores, the aluminum foil shielding layer is sleeved outside the XL-PE high-temperature-resistant layer, and the insulating outer sheath layer is sleeved outside the aluminum foil shielding layer. The utility model can improve the heat-resistant deformation, improve the mechanical property at high temperature, improve the environmental stress cracking resistance and heat aging resistance, enhance the chemical stability and solvent resistance, reduce the cold flow property, and has excellent mechanical and radiation resistance and wide application fields.

Description

XL-PE insulated high-temperature-resistant high-end equipment cable

[ Field of technology ]

The utility model relates to the technical field of cables, in particular to the technical field of high-temperature-resistant high-end equipment cables insulated by XL-PE.

[ Background Art ]

The cable is a rope-like cable formed by twisting at least two wires of each group of several or groups of wires, wherein each group of wires are mutually insulated and often twisted around a center, the whole cable is covered with a high-insulation coating, and the cable has various varieties and specifications and wide application range. Polyethylene (PE) is a common material for cable insulation at present, but has the disadvantage of limited high temperature resistance.

[ utility model ]

The utility model aims to solve the problems in the prior art, and proposes an XL-PE insulated high-temperature-resistant high-end equipment cable which can improve the heat-resistant deformation property, improve the mechanical property at high temperature, improve the environmental stress cracking resistance and heat aging resistance, enhance the chemical stability and solvent resistance, reduce the cold flow property, has excellent mechanical and radiation resistance and has wide application fields.

In order to achieve the above purpose, the utility model provides an XL-PE insulated high-temperature-resistant high-end equipment cable, which comprises a plurality of conductive wire cores, an insulated inner sheath, an XL-PE high-temperature-resistant layer, a ground wire, an aluminum foil shielding layer and an insulated outer sheath layer, wherein the insulated inner sheath is sleeved outside each conductive wire core, the XL-PE high-temperature layer is sleeved outside each insulated inner sheath, the ground wire is arranged between the conductive wire cores, the aluminum foil shielding layer is sleeved outside the XL-PE high-temperature-resistant layer, and the insulated outer sheath layer is sleeved outside the aluminum foil shielding layer.

Preferably, the insulating inner sheath is a silicone rubber sheath layer.

Preferably, the XL-PE high temperature resistant layer is an irradiation crosslinking XL-PE high temperature resistant layer.

Preferably, the outer side surface of the XL-PE high temperature resistant layer is uniformly provided with a high temperature resistant coating.

Preferably, an insulating layer is sleeved outside the ground wire.

Preferably, the conductive wire core and the ground wire are fixedly adhered and arranged on the inner side of the aluminum foil shielding layer, and a buffer gap is arranged between the adjacent conductive wire core and the ground wire.

Preferably, the insulating outer sheath layer is a wear-resistant sheath layer.

The utility model has the advantages that the conductive wire core, the insulating inner sheath, the XL-PE high temperature resistant layer, the ground wire, the aluminum foil shielding layer and the insulating outer sheath layer are combined together, through experimental optimization, the PE material is converted into the XL-PE material with the three-dimensional structure from the linear molecular structure through irradiation crosslinking processing, the thermoplastic plastic is converted into insoluble thermosetting plastic, compared with the common thermoplastic polyethylene, the XLPE insulated cable has the advantages of improving the heat deformation resistance, improving the mechanical property at high temperature, improving the environmental stress cracking resistance and heat aging resistance, enhancing the chemical stability and the solvent resistance, reducing the cold flow property, maintaining the original electrical property, and having long-term working temperature of 125 ℃ and 150 ℃, obviously increasing the carrying capacity of crosslinked polyethylene for cables with the same thickness, and having excellent mechanical and radiation resistance and wide application field. Such as the application fields of internal connection wires of electric appliances, motor leads, automobile low-voltage signal control wires, locomotive wires, cable for subways, oil-submerged pump cables and the like.

The features and advantages of the present utility model will be described in detail by way of example with reference to the accompanying drawings.

[ Description of the drawings ]

FIG. 1 is a schematic diagram of a construction of an insulated high temperature and high end equipment cable of the present utility model employing XL-PE.

In the figure, a 1-conductive wire core, a 2-insulating inner sheath, a 3-XL-PE high temperature resistant layer, a 4-ground wire, a 5-aluminum foil shielding layer and a 6-insulating outer sheath layer are arranged.

[ Detailed description ] of the invention

Referring to fig. 1, the utility model adopts an XL-PE insulated high-temperature-resistant high-end equipment cable, which comprises a conductive wire core 1, an insulated inner sheath 2, an XL-PE high-temperature-resistant layer 3, a ground wire 4, an aluminum foil shielding layer 5 and an insulated outer sheath layer 6, wherein a plurality of conductive wire cores 1 are arranged, the outer side of each conductive wire core 1 is sleeved with the insulated inner sheath 2, the outer side of the insulated inner sheath 2 is sleeved with the XL-PE high-temperature layer, the conductive wire cores 1 are provided with the ground wire 4, the outer side of the XL-PE high-temperature-resistant layer 3 is sleeved with the aluminum foil shielding layer 5, the outer side of the aluminum foil shielding layer 5 is sleeved with the insulated outer sheath layer 6, the insulated inner sheath 2 is a silicone rubber sheath layer, the XL-PE high-temperature-resistant layer 3 is an irradiation crosslinked XL-PE high-temperature-resistant layer, the outer side of the XL-PE high-temperature-resistant layer 3 is uniformly provided with a high-resistant coating, the outer side of the ground wire 4 is sleeved with the insulating layer, the conductive wire cores 1 and the ground wire 4 are fixedly adhered to the inner side of the aluminum foil shielding layer 5, a buffer gap is arranged between the adjacent conductive wire cores 1 and the ground wire 4, and the insulating sheath 6 is a wear-resistant layer.

According to the utility model, the conductive wire core 1, the insulating inner sheath 2, the XL-PE high temperature resistant layer 3, the ground wire 4, the aluminum foil shielding layer 5 and the insulating outer sheath layer 6 are combined together, through experimental optimization, PE materials are converted into XL-PE materials with a three-dimensional structure from linear molecular structures through irradiation crosslinking processing, thermoplastic plastics are converted into insoluble thermosetting plastics, compared with common thermoplastic polyethylene, the XLPE insulated cable has the advantages of improving the heat deformation resistance, improving the mechanical property at high temperature, improving the environmental stress cracking resistance and heat aging resistance, enhancing the chemical stability and solvent resistance, reducing the cold flow property, maintaining the original electrical property, and enabling the long-term working temperature to reach 125 ℃ and 150 ℃, after the polyethylene is crosslinked, the short-circuit temperature of the polyethylene can be increased to 250 ℃, the current carrying capacity of the crosslinked polyethylene is obviously increased, and the XLPE insulated cable has excellent mechanical and radiation resistance and wide application fields. Such as the application fields of internal connection wires of electric appliances, motor leads, automobile low-voltage signal control wires, locomotive wires, cable for subways, oil-submerged pump cables and the like.

The above embodiments are illustrative of the present utility model, and not limiting, and any simple modifications of the present utility model fall within the scope of the present utility model.

Claims

1. An XL-PE insulated high-temperature resistant high-end equipment cable is adopted, characterized in that it comprises a conductive core (1), an insulating inner sheath (2), an XL-PE high-temperature resistant layer (3), a ground wire (4), an aluminum foil shielding layer (5) and an insulating outer sheath layer (6), wherein there are a plurality of conductive cores (1), an insulating inner sheath (2) is provided on the outer side of each conductive core (1), an XL-PE high-temperature layer is provided on the outer side of the insulating inner sheath (2), a ground wire (4) is provided between the conductive cores (1), an aluminum foil shielding layer (5) is provided on the outer side of the XL-PE high-temperature resistant layer (3), and an insulating outer sheath layer (6) is provided on the outer side of the aluminum foil shielding layer (5).

2. The XL-PE insulated high-temperature resistant high-end equipment cable as claimed in claim 1 is characterized in that the insulating inner sheath (2) is a silicone rubber sheath layer.

3. The XL-PE insulated high-temperature resistant high-end equipment cable as claimed in claim 1, characterized in that the XL-PE high-temperature resistant layer (3) is a radiation cross-linked XL-PE high-temperature resistant layer.

4. The XL-PE insulated high-temperature resistant high-end equipment cable as claimed in claim 1, characterized in that a high-temperature resistant coating is evenly provided on the outer side of the XL-PE high-temperature resistant layer (3).

5. The XL-PE insulated high-temperature resistant high-end equipment cable as claimed in claim 1, characterized in that an insulating layer is provided on the outer side of the ground wire (4).

6. The XL-PE insulated high-temperature resistant high-end equipment cable as described in claim 1 is characterized in that: the conductive core (1) and the ground wire (4) are fixedly adhered to the inner side of the aluminum foil shielding layer (5), and a buffer gap is provided between adjacent conductive cores (1) and ground wires (4).

7. The XL-PE insulated high-temperature resistant high-end equipment cable as claimed in claim 1, characterized in that the insulating outer sheath layer (6) is a wear-resistant sheath layer.