CN211929137U

CN211929137U - Corrosion-resistant aluminum alloy cable

Info

Publication number: CN211929137U
Application number: CN202020238855.9U
Authority: CN
Inventors: 李静海; 吴素贤
Original assignee: Shenyang Shentong Wire And Cable Factory
Current assignee: Shenyang Shentong Wire And Cable Factory
Priority date: 2020-03-02
Filing date: 2020-03-02
Publication date: 2020-11-13
Anticipated expiration: 2030-03-02

Abstract

The utility model provides a corrosion-resistant aluminum alloy cable, three aluminum alloy conductors are regular triangle and arrange, each aluminum alloy conductor is wrapped with an inner cladding, the inner cladding is provided with an inner insulating layer, an inner shielding layer and from inside to outside, the core rope is one and arranges in the central position of the regular triangle formed by three aluminum alloy conductors, the glass fiber belt comprises three and each glass fiber belt arranges between the adjacent aluminum alloy conductors along the radial direction, the inner side of each glass fiber belt is connected with the core rope and the outer side is connected with the outer cladding; the outer cladding layer is coated outside the wire core and is provided with an outer insulating layer, an outer shielding layer and an outer sheath from inside to outside. Each aluminum alloy conductor is coated with an inner cladding composed of an inner insulating layer, an inner shielding layer and a glass fiber band, the shielding type between the aluminum alloy conductors is improved, and meanwhile, the outer cladding is arranged outside the wire core, so that corrosion caused by external factors is reduced. The bending property, creep resistance, corrosion resistance and the like of the steel are improved.

Description

Corrosion-resistant aluminum alloy cable

Technical Field

The utility model relates to the technical field of cables, especially an use electric power transmission cable of aluminum alloy as conductor.

Background

The actual weight of aluminum is about one third of that of copper in the same volume. Therefore, the weight of the aluminum cable is about half of that of the copper cable under the condition of the same current-carrying capacity, so that the weight of the cable can be reduced, the installation cost is reduced, the abrasion of equipment and the cable is reduced, and the installation work is easier. However, aluminum cables have disadvantages of low bending property, creep resistance and corrosion resistance, and creep property.

SUMMERY OF THE UTILITY MODEL

The aforesaid to current aluminum alloy cable is not enough, the utility model provides a corrosion-resistant aluminum alloy cable to improve aluminum alloy cable's corrosion resisting property, improve its creep resistance.

In order to achieve the above object, the utility model discloses a technical scheme does:

a corrosion-resistant aluminum alloy cable comprises a wire core and an outer cladding; the wire core comprises an aluminum alloy conductor, a core rope and a glass fiber tape; the three aluminum alloy conductors are arranged in a regular triangle, an inner cladding is coated outside each aluminum alloy conductor, an inner insulating layer and an inner shielding layer are arranged on the inner cladding from inside to outside, the core rope is one and is arranged at the central position of the regular triangle formed by the three aluminum alloy conductors, the glass fiber belts comprise three glass fiber belts, each glass fiber belt is arranged between adjacent wire cores along the radial direction in the center, the inner side of each glass fiber belt is connected with the core rope, and the outer side of each glass fiber belt is connected with the outer cladding; the outer cladding layer is coated outside the wire core and is provided with an outer insulating layer, an outer shielding layer and an outer sheath from inside to outside.

The utility model provides another kind of technical scheme of corrosion-resistant aluminum alloy cable, the core rope is single zero line, including zero line core and the insulating sheath of cladding outside the aluminum alloy conductor, the inboard and the insulating sheath in each glass fiber area are connected. The zero line core has the double functions of a balance line and a tensile rope body, and the rest parts are the same as the first technical scheme.

Optionally, the aluminum alloy conductor is bundled by a plurality of fine aluminum alloy wires.

Optionally, an inner insulating layer is further disposed outside the inner shielding layer.

Optionally, the wire core further comprises a foaming body, and the foaming body is filled between the aluminum alloy conductor and the glass fiber tape.

Optionally, the core rope is a glass fiber rope, and the inner side of the glass fiber belt is integrally woven with the glass fiber rope. Further, the core rope is a steel rope, and the inner side of the glass fiber belt is glued with the steel rope.

Optionally, the inner shielding layer and the outer shielding layer are both a metal tape winding structure or a metal wire braid.

The utility model has the advantages that:

the aluminum alloy power cable takes three aluminum alloy materials arranged in a regular triangle as conductors and is provided with a core rope, the number of the glass fiber belts is three, each glass fiber belt is arranged between adjacent aluminum alloy conductors along the radial direction, the inner side of each glass fiber belt is connected with the core rope, and the outer side of each glass fiber belt is connected with the outer covering layer; the through core rope and the glass fiber tape improve the strength of the cable, bear the tension of the power cable and reduce the creep of the aluminum alloy conductor. Each aluminum alloy conductor is coated with an inner cladding composed of an inner insulating layer, an inner shielding layer and a glass fiber band, the shielding type between the aluminum alloy conductors is improved, and meanwhile, the outer cladding is arranged outside the wire core, so that corrosion caused by external factors is reduced. The bending property, creep resistance, corrosion resistance and the like of the steel are improved.

Drawings

Fig. 1 is a schematic cross-sectional view of a first embodiment of a corrosion-resistant aluminum alloy cable according to the present invention.

Fig. 2 is a schematic cross-sectional view of a second embodiment of a corrosion-resistant aluminum alloy cable according to the present invention.

In the figure, 1-wire core, 11-aluminum alloy conductor, 12-inner insulating layer, 13-inner shielding layer, 2-core rope, 21-zero wire core, 22-insulating sheath, 3-glass fiber tape, 4-outer cladding, 41-outer insulating layer, 42-outer shielding layer, 43-outer sheath.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Example 1:

fig. 1 is a schematic cross-sectional view of a first embodiment of a corrosion-resistant aluminum alloy cable according to the present invention. The corrosion-resistant aluminum alloy cable is composed of a wire core 1 and an outer cladding 4.

The cable core 1 comprises an aluminum alloy conductor 11, a core rope 2 and a glass fiber tape 3; the three aluminum alloy conductors 11 are arranged in a regular triangle, and in this embodiment, the aluminum alloy conductors are bundled by a plurality of thin aluminum alloy wires. Each aluminum alloy conductor 11 is coated with an inner cladding, the inner cladding is provided with an inner insulating layer 12 and an inner shielding layer 13 from inside to outside, the core rope 2 is one and is arranged at the central position of a regular triangle formed by the three aluminum alloy conductors 11, the glass fiber belts 3 comprise three glass fiber belts 3, each glass fiber belt 3 is arranged between the adjacent core ropes 1 along the radial direction in the center, the inner side of each glass fiber belt 3 is connected with the core rope 2, and the outer side of each glass fiber belt 3 is connected with the outer cladding 4; in this embodiment, the core rope 2 is a glass fiber rope, and the inner side of the glass fiber tape 3 is integrally woven with the glass fiber rope.

The outer cladding layer 4 is coated outside the wire core, an outer insulating layer 41, an outer shielding layer 42 and an outer sheath 43 are arranged on the outer cladding layer from inside to outside, and the inner shielding layer 13 and the outer shielding layer 42 are both of a metal belt winding structure or a metal wire woven structure.

Example 2:

fig. 2 is a schematic cross-sectional view of a second embodiment of a corrosion-resistant aluminum alloy cable according to the present invention. As shown in fig. 2, the core rope 2 is a single neutral wire, and includes a neutral wire core 21 and an insulating sheath 22 coated outside the aluminum alloy conductor, the inner side of each glass fiber tape 3 is connected to the insulating sheath 22, and the rest of the structure is the same as that of the first embodiment, and is not described again.

In this embodiment, an inner insulating layer is further disposed outside the inner shielding layer 13.

In this embodiment, the wire core 1 further includes a foam filled between the aluminum alloy conductor and the glass fiber tape.

In this embodiment, the core rope 2 is a steel rope, and the inner side of the glass fiber tape 3 is glued with the steel rope.

The utility model discloses a theory of operation: three aluminum alloy materials are arranged in a regular triangle shape to serve as conductors, and a first barrier consisting of an inner insulating layer 12 and an inner shielding layer 13 is coated outside each aluminum alloy conductor 11; the glass fiber belts 3 comprise three glass fiber belts 3, each glass fiber belt 3 is arranged between adjacent aluminum alloy conductors 11 along the radial direction in a centered mode, the inner side of each glass fiber belt 3 is connected with the core rope 2, the outer side of each glass fiber belt 3 is connected with the outer cladding 4, and the glass fiber belts 3 form a second barrier; an outer cladding layer 4 composed of an inner-to-outer insulating layer 41, an outer shielding layer 42 and an outer sheath 43 is arranged outside the wire core, and the outer cladding layer 4 forms a third barrier. The three barriers prevent the corrosion of the aluminum alloy conductor from the outside and improve the corrosion resistance.

The core rope 2 and the glass fiber tape 3 improve the strength of the cable, bear the tension of the power cable, reduce the creep of the aluminum alloy conductor and facilitate the bending arrangement of the cable.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a corrosion-resistant aluminum alloy cable which characterized in that:

consists of a wire core (1) and an outer cladding (4);

the cable core (1) comprises an aluminum alloy conductor (11), a core rope (2) and a glass fiber tape (3); the three aluminum alloy conductors (11) are arranged in a regular triangle, an inner cladding is coated outside each aluminum alloy conductor (11), an inner insulating layer (12) and an inner shielding layer (13) are arranged on the inner cladding from inside to outside, the core rope (2) is one and is arranged at the central position of the regular triangle formed by the three aluminum alloy conductors (11), the glass fiber belts (3) comprise three glass fiber belts (3), each glass fiber belt (3) is arranged between adjacent wire cores (1) along the radial direction in the center, the inner side of each glass fiber belt (3) is connected with the core rope (2), and the outer side of each glass fiber belt (3) is connected with the outer cladding (4);

the outer cladding (4) is coated outside the wire core, and an outer insulating layer (41), an outer shielding layer (42) and an outer sheath (43) are arranged on the outer cladding from inside to outside.

2. The corrosion-resistant aluminum alloy cable of claim 1, wherein: the core rope (2) is a single zero line and comprises a zero line core (21) and an insulating sheath (22) coated outside the aluminum alloy conductor, and the inner side of each glass fiber belt (3) is connected with the insulating sheath (22).

3. The corrosion-resistant aluminum alloy cable of claim 1, wherein: the aluminum alloy conductor is bunched by a plurality of fine aluminum alloy wires.

4. The corrosion-resistant aluminum alloy cable of claim 3, wherein: an inner insulating layer is further arranged outside the inner shielding layer.

5. The corrosion-resistant aluminum alloy cable of claim 1, wherein: the cable core (1) also comprises a foaming body, and the foaming body is filled between the aluminum alloy conductor and the glass fiber tape.

6. The corrosion-resistant aluminum alloy cable of claim 1, wherein: the core rope (2) is a glass fiber rope, and the inner side of the glass fiber belt (3) is integrally woven with the glass fiber rope.

7. The corrosion-resistant aluminum alloy cable of claim 1, wherein: the core rope (2) is a steel rope, and the inner side of the glass fiber belt (3) is glued with the steel rope.

8. The corrosion-resistant aluminum alloy cable of claim 1, wherein: the inner shielding layer (13) and the outer shielding layer (42) are both of a metal belt winding structure or a metal wire weaving structure.