CN111029015A

CN111029015A - Novel rat-proof power cable

Info

Publication number: CN111029015A
Application number: CN201911346841.7A
Authority: CN
Inventors: 盛睿; 王业林; 叶道坤; 彭海珍
Original assignee: Anhui Huaneng Cable Co Ltd
Current assignee: Anhui Huaneng Cable Co ltd; Anhui Huaneng Cable Group Co Ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-04-17
Anticipated expiration: 2039-12-24
Also published as: CN111029015B

Abstract

The invention relates to a novel rat-proof power cable which comprises a cable outer cover, wherein a plurality of first wire cores which are circumferentially distributed around the cable outer cover are arranged in the cable outer cover, a plurality of second wire cores which are circumferentially distributed around the cable outer cover are also distributed in the cable outer cover, a first filling layer which is used for fixing the position of the cable and absorbing external extrusion force is arranged between the second wire cores and the first wire cores, and a shielding layer for preventing signal interference is arranged between the second wire cores and the first filling layer. According to the invention, the positions of the first wire core and the second wire core are fixed through the first filling layer, so that the situation that the cable is displaced in the transportation or laying process to cause installation failure is prevented, and meanwhile, the first wire core and the second wire core are protected by absorbing external extrusion force through the energy absorption area, so that the cable cannot be damaged to cause incapability in use in a complex environment.

Description

Novel rat-proof power cable

Technical Field

The invention relates to a cable, in particular to a novel ratproof power cable.

Background

The cable is as power transmission instrument commonly used, be used for transmission and the cable product of distribution high-power electric energy in electric power system's trunk line, power cable often lays in indoor, channel, tunnel, and it is complicated to lay the environment, has the stone that splashes often to injure the cable by a crashing object, and the while patrolling constructor makes often mistake and steps on the cable in the operation and lead to the cable to damage, has animals such as mouse to gnaw the cable dustcoat even and leads to the cable damage, consequently needs a neotype protection against rodents power cable to solve above-mentioned problem.

Disclosure of Invention

In order to solve the technical problems, the invention provides a novel ratproof power cable. The technical problem to be solved by the invention is realized by adopting the following technical scheme:

the utility model provides a novel protection against rodents type power cable, includes the cable dustcoat, be equipped with a plurality of in the cable dustcoat and be a wire core that the circumference distributes around the cable dustcoat, it has a No. two wire cores that a plurality of is the circumference and distributes around the cable dustcoat still to distribute in the cable dustcoat, be equipped with the filling layer that fixed cable position just absorbed outside extrusion force between No. two wire cores and a wire core, be equipped with the shielding layer that prevents signal interference between No. two wire cores and the filling layer.

And a protective layer is distributed between the cable outer cover and the first wire core, and the protective layer is provided with arc-shaped convex parts which correspond to the first wire core one by one to limit the position of the first wire core.

And a fireproof layer is arranged between the protective layer and the cable outer cover.

The energy absorption area is arranged in the first filling layer, corresponds to the first wire core one by one to absorb external extrusion force, and is in an isosceles trapezoid shape in cross section, and the upper bottom and the lower bottom of the energy absorption area are circular arcs which are concentrically distributed with the corresponding first wire core and the shielding layer.

And a second filling layer is arranged between the second wire core and the shielding layer.

The first wire core and the second wire core are respectively sleeved with an insulating layer.

The invention has the beneficial effects that: according to the invention, the positions of the first wire core and the second wire core are fixed through the first filling layer, so that the situation that the cable is displaced in the transportation or laying process to cause installation failure is prevented, and meanwhile, the first wire core and the second wire core are protected by absorbing external extrusion force through the energy absorption area, so that the cable cannot be damaged to cause incapability in use in a complex environment.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic front view of the present invention.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the present invention will be described more clearly and more completely with reference to the drawings in the following embodiments, and it is understood that the described embodiments are only a part of the present invention, rather than all of the present invention, and based on the embodiments, other embodiments obtained by those skilled in the art without inventive exercise are within the protection scope of the present invention.

As shown in fig. 1, a novel protection against rodents type power cable, including cable cover 1, be equipped with a plurality of in the cable cover 1 and be a wire core 2 that the circumference distributes around cable cover 1, it has a plurality of to be a No. two wire cores 3 that the circumference distributes around cable cover 1 still to distribute in the cable cover 1, be equipped with the fixed cable position and absorb a filling layer 4 of outside extrusion force between No. two wire cores 3 and a wire core 2, be equipped with the shielding layer 7 that prevents signal interference between No. two wire cores 3 and a filling layer 4.

A protective layer 5 is distributed between the cable outer cover 1 and the first wire core 2, and arc-shaped convex parts 5a which correspond to the first wire core 2 one by one to limit the position of the first wire core 2 are arranged on the protective layer 5; the arc-shaped protruding part 5a is concentrically distributed with the first wire core 2 to limit the position of the first wire core 2 and protect the first wire core 2.

And a fireproof layer 6 is arranged between the protective layer 5 and the cable housing 1.

An energy absorption area 8 which corresponds to the first wire core 2 one by one to absorb external extrusion force and has an isosceles trapezoid cross section is arranged in the first filling layer 4, and the upper bottom and the lower bottom of the energy absorption area 8 are arcs which are concentrically distributed with the corresponding first wire core 2 and the shielding layer 7; when the cable housing 1 receives extrusion force, the energy absorption area 8 generates deformation to absorb the extrusion force, and the first wire core 2 and the second wire core 3 are protected; the upper bottom and the lower bottom of the energy absorption area 8 are both circular arcs and are matched with the outer edges of the first wire core 2 and the shielding layer 7, so that the deformation absorption extrusion force is easier to generate when the extrusion force is received.

And a second filling layer 10 is arranged between the second wire core 3 and the shielding layer 7.

And the first wire core 2 and the second wire core 3 are respectively sleeved with an insulating layer 9.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a novel protection against rodents type power cable, includes cable cover (1), be equipped with a plurality of in cable cover (1) and be a wire core (2) that the circumference distributes around cable cover (1), its characterized in that: still distribute in cable dustcoat (1) a plurality of and be second number core (3) that the circumference distributes around cable dustcoat (1), be equipped with a filling layer (4) of fixed cable position and absorption outside extrusion force between second number core (3) and first number core (2), be equipped with shielding layer (7) that prevent signal interference between second number core (3) and filling layer (4).

2. The novel ratproof power cable according to claim 1, wherein: a protective layer (5) is distributed between the cable outer cover (1) and the first wire core (2), and arc-shaped protruding parts (5a) which correspond to the first wire core (2) one by one to limit the position of the first wire core (2) are arranged on the protective layer (5).

3. The novel ratproof power cable according to claim 2, wherein: and a fireproof layer (6) is arranged between the protective layer (5) and the cable outer cover (1).

4. The novel ratproof power cable according to claim 1, wherein: be equipped with in first filling layer (4) with a line core (2) one-to-one in order to absorb external extrusion force and the cross-section is isosceles trapezoid's energy-absorbing district (8), the upper base and the lower bottom in energy-absorbing district (8) are the circular arc that distributes with a line core (2) and shielding layer (7) concentric that correspond.

5. The novel ratproof power cable according to claim 1, wherein: and a second filling layer (10) is arranged between the second wire core (3) and the shielding layer (7).

6. The novel ratproof power cable according to claim 1, wherein: the first wire core (2) and the second wire core (3) are sleeved with insulating layers (9).