CN214505106U

CN214505106U - High-conductivity high-voltage power transmission special cable

Info

Publication number: CN214505106U
Application number: CN202120893985.0U
Authority: CN
Inventors: 林子胜
Original assignee: Kunming Haitian Cable Co ltd
Current assignee: Kunming Haitian Cable Co ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2021-10-26
Anticipated expiration: 2031-04-28

Abstract

The utility model discloses a high conductivity high voltage electricity carries special cable, it includes the insulating rubber cover be provided with the wire net in the insulating rubber cover, be provided with in the wire net and lead the sandwich layer, it has a plurality of wire cores to lead the interior annular uniform arrangement of sandwich layer, and each strand the wire core is formed by 3-5 high copper cores of leading closely packed range, and each strand the outer parcel of wire core has fire resistant mica tape, it has tensile fibre to fill between the space of each strand the wire core in the sandwich layer, it is provided with halogen-free flame retardant layer in the sandwich layer to lead, be provided with the supporting layer in the halogen-free flame retardant layer; the beneficial effects of the utility model reside in that: the cluster cable can effectively reduce the cost and save the length of the electric wire, and has high conductive efficiency by adopting the cluster cable with smaller diameter; the middle adopts the mode of cavity (indicating no cable), more is favorable to thermal rapid dissipation, improves cable life, and the insulating rubber cover has good fire-retardant and shielding effect, reduces the influence of external environment to the cable.

Description

High-conductivity high-voltage power transmission special cable

Technical Field

The utility model relates to a cable field especially relates to a high conductivity high-tension electricity carries special cable.

Background

With the rapid growth of national economy, especially the acceleration of rural and urban power grid construction and transformation pace and the vigorous development of the land industry in various regions, the electric power industry in China is rapidly developed, thereby promoting the development of the electric industry matched with the electric power industry, especially the development of the electric wire and cable industry, and showing the diversified trend of the variety development of the electric wire and cable. The existing power transmission cable has limited strength and poor tensile drag resistance due to design defects, and is very easy to damage in the using process, so that the safety and the power transmission efficiency of the cable are greatly reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high conductivity high-tension electricity carries special cable to prior art not enough and provide.

In order to achieve the above purpose, the present invention is achieved by the following technical solutions.

The utility model provides a high electric conductivity high voltage electricity carries special cable which characterized in that: it includes the insulating rubber cover be provided with the wire net in the insulating rubber cover, be provided with in the wire net and lead the sandwich layer, lead the sandwich layer including a plurality of annular align to grid's wire core, per share the wire core is led the copper core by 3-5 high and is packed up to form, per share the outer parcel of wire core has fire resistant mica tape, lead per share in the sandwich layer the packing has tensile fibre between the space of wire core, it is provided with halogen-free flame retardant layer in the sandwich layer to lead, be provided with the supporting layer in the halogen-free flame retardant layer, be provided with the hexagon support frame in the supporting layer, be provided with the triangle-shaped strengthening frame in the hexagon support frame, the intraformational space department of supporting is filled with the powder of putting out a fire.

Further, the number of the wire cores is 10-18 strands.

Furthermore, each end of the hexagonal support frame is connected with a wire core, and three ends of the triangular reinforcing frame are arranged on the inner corners of the hexagonal support frame at intervals.

Furthermore, the triangular reinforcing frame and the hexagonal support frame are the same in circumcircle, and the circle center of the matrix formed by the wire cores is superposed with the circle center of the circumcircle of the hexagonal support frame.

The beneficial effects of the utility model reside in that: the cluster cable can effectively reduce the cost and save the length of the electric wire, and because the central part of the lead almost has no current passing through the existence of the skin effect, the cluster cable with smaller diameter has high conductive efficiency; the middle adopts the mode of cavity (indicating no cable), more is favorable to thermal rapid dissipation, improves cable life, and the insulating rubber cover has good fire-retardant and shielding effect, reduces the influence of external environment to the cable.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a hexagonal support frame and a triangular reinforcing frame in the utility model;

in the figure: 1. an insulating rubber sleeve; 2. steel wire mesh; 3. a core guide layer; 31. a tensile fiber; 4. a wire core; 41. a high-conductivity copper core; 42. fire-resistant mica tapes; 5. a support layer; 6. a hexagonal support frame; 7. a triangular reinforcing frame; 8. fire extinguishing powder; 9. a halogen-free flame retardant layer.

Detailed Description

The present invention is further illustrated by the following examples, but is not limited to the contents of the specification.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

As shown in the figure: a high-conductivity high-voltage power transmission special cable comprises an insulating rubber sleeve 1, a steel wire mesh 2 is arranged in the insulating rubber sleeve 1, the steel wire mesh 2 is internally provided with a core guiding layer 3, a plurality of conductor cores 4 are annularly and uniformly arranged in the core guiding layer 3, each conductor core 4 is formed by 3-5 high-conductivity copper cores 41 which are densely stacked and arranged, a fire-resistant mica tape 42 is wrapped outside each conductor core 4, tensile fibers 31 are filled between the gaps of each strand of the wire core 4 in the wire core layer 3, the tensile fibers 31 are made of polypropylene fibers, a halogen-free flame-retardant layer 9 is arranged in the core layer 3, a supporting layer 5 is arranged in the halogen-free flame-retardant layer 9, a plurality of hexagonal support frames 6 are arranged in the support layer 5, a triangular reinforcing frame 7 is correspondingly arranged in each hexagonal support frame 6, and fire extinguishing powder 8 is filled in gaps in the support layer 5.

The number of the wire cores 4 is 10 to 18 strands.

Each end of the hexagonal support frame 6 is connected with a wire core 4, and three ends of the triangular reinforcing frame 7 are arranged at intervals on the inner corners of the hexagonal support frame 6.

The triangular reinforcing frame 7 and the hexagonal support frame 6 have the same circumcircle, the circle center of the matrix formed by the wire cores 4 is superposed with the circumcircle center of the hexagonal support frame 6, and the support layer 5 is positioned at the geometric center of the cross section of the cable.

It is to be understood that the above-described embodiments of the present invention are merely examples provided for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. Not all embodiments are exhaustive. All obvious changes or variations led out by the technical scheme of the utility model are still in the protection scope of the utility model.

Claims

1. The utility model provides a high electric conductivity high voltage electricity carries special cable which characterized in that: the wire mesh type cable comprises an insulating rubber sleeve (1), a wire mesh layer (2) is arranged in the insulating rubber sleeve (1), a guide core layer (3) is arranged in the wire mesh layer (2), the guide core layer (3) comprises a plurality of conductor cores (4) which are uniformly arranged in an annular shape, each conductor core (4) is formed by 3-5 high-conductive copper cores (41) which are densely stacked and arranged, a fire-resistant mica tape (42) wraps the outer side of each conductor core (4), tensile fibers (31) are filled between the gaps of each conductor core (4) in the guide core layer (3), a halogen-free flame-retardant layer (9) is arranged in the guide core layer (3), a supporting layer (5) is arranged in the halogen-free flame-retardant layer (9), a plurality of hexagonal supporting frames (6) are arranged in the supporting layer (5), and a triangular reinforcing frame (7) is arranged in the hexagonal supporting frame (6), and fire extinguishing powder (8) is filled in the gap in the supporting layer (5).

2. The high-conductivity high-voltage power transmission special cable according to claim 1, wherein: the number of the wire cores (4) is 10-18 strands.

3. The high-conductivity high-voltage power transmission special cable according to claim 1, wherein: each end of the hexagonal support frame (6) is connected with a wire core (4), and three ends of the triangular reinforcing frame (7) are arranged on the inner angle of the hexagonal support frame (6) at intervals.

4. The high-conductivity high-voltage power transmission special cable according to claim 1, wherein: the triangular reinforcing frame (7) and the hexagonal support frame (6) are identical in circumcircle, and the circle center of a matrix formed by the wire cores (4) is superposed with the circle center of the circumcircle of the hexagonal support frame (6).