CN216623798U

CN216623798U - Aluminum core crosslinked polyethylene insulated overhead cable

Info

Publication number: CN216623798U
Application number: CN202122757190.XU
Authority: CN
Inventors: 臧庆军; 王刚
Original assignee: Shandong Jiahua Cable Co ltd
Current assignee: Shandong Jiahua Cable Co ltd
Priority date: 2021-11-11
Filing date: 2021-11-11
Publication date: 2022-05-27
Anticipated expiration: 2031-11-11

Abstract

The utility model discloses an aluminum core crosslinked polyethylene insulated overhead cable which comprises an insulating layer I, wherein a plurality of insulated inner cores are arranged in the insulating layer I, an insulating layer II is arranged on the periphery of the insulating layer I, a plurality of insulated inner cores are uniformly distributed between the insulating layer II and the insulating layer I, a semiconductor shielding layer is fixedly arranged on the periphery of the insulating layer II, a flame-retardant layer is wound outside the semiconductor shielding layer, an armor layer is arranged outside the flame-retardant layer, an outer sheath is fixedly arranged outside the armor layer, and a sun-proof layer is arranged on the outer wall of the outer sheath. Compared with the prior art, the utility model has the advantages that: the utility model has the advantages of high temperature resistance, good tensile strength, light weight, long service life, simple structure, convenient use and easy popularization.

Description

Aluminum core crosslinked polyethylene insulated overhead cable

Technical Field

The utility model relates to the field of cables, in particular to an aluminum core crosslinked polyethylene insulated overhead cable.

Background

The overhead cable (full-name overhead insulated cable) is an overhead conductor with insulating layer and protective sheath, and is a special cable made up by using the production process similar to crosslinked cable, and is a new power transmission mode between overhead conductor and underground cable. The aerial cable is a single core, and can be divided into a duralumin wire structure, an aluminum alloy wire structure, a steel core or aluminum alloy core supporting structure, a self-supporting three-core threaded structure (the wire core can be duralumin or duralumin wire) and the like according to different structures. The power supply system has the main characteristics of high power supply reliability, good power supply safety, convenience in erection and maintenance, reasonable economy and the like. The main technical parameters comprise weather resistance, insulation level, inner and outer semi-conductive shielding layers. The overhead cable has wide transmission application at home and abroad.

The tensile strength of the existing overhead cable is poor, a worker drags a cable inlet wire in the process of erecting the cable, the cable is easily damaged, the normal use of the cable is influenced, and the cable is impacted by mechanical force in the transportation process, so that the internal core breaking of the cable is easily caused.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of overcoming the technical defects and provides an aluminum core crosslinked polyethylene insulated overhead cable.

In order to solve the problems, the technical scheme of the utility model is as follows: the utility model provides an aluminum core crosslinked polyethylene insulated overhead cable, includes insulating layer one, be equipped with the insulating inner core of a plurality of in the insulating layer one, insulating layer one periphery is equipped with insulating layer two, evenly distributed has the insulating inner core of a plurality of between insulating layer two and the insulating layer one, the fixed semiconductor shield layer that is equipped with in insulating layer two periphery, the semiconductor shield layer is wrapped outward and is had fire-retardant layer, be equipped with the armor outside the fire-retardant layer, the armor layer external fixation is equipped with the oversheath, be equipped with sun-proof layer on the outer wall of oversheath.

As an improvement, the insulating inner core comprises an insulating sleeve, and a plurality of aluminum wires are arranged in the insulating sleeve, so that the aluminum wires can be separated from each other, the aluminum wires are not influenced by other aluminum wires, and the transmission of electric energy is facilitated.

As an improvement, the gaps between the insulating cores in the first insulating layer and the second insulating layer are filled with flame retardant materials, so that the situation that other insulating cores are affected due to the fact that part of the aluminum wires are overheated and catch fire is avoided.

As an improvement, the insulating layer I, the insulating sleeve, the insulating layer II and the outer sheath are all made of cross-linked polyethylene materials, and the cross-linked polyethylene materials have the characteristics of high temperature resistance, pulling resistance, good mechanical property and the like.

Compared with the prior art, the utility model has the advantages that: the insulating sleeve, the first insulating layer and the second insulating layer are arranged, so that the aluminum wires can be separated from each other, the aluminum wires are not influenced by other aluminum wires, and electric energy is conveniently transmitted; the flame retardant material is filled in gaps among the plurality of insulating inner cores, so that the influence on other insulating inner cores caused by the overheating and fire ignition of part of aluminum wires can be prevented; by arranging the semiconductor shielding layer, the energy of the cable can be uniform, and the cable is prevented from influencing other electronic products; through setting up insulating layer one, insulating cover, insulating layer two and oversheath into crosslinked polyethylene material, can effectively improve the mechanical property and the high temperature resistance of cable, prevent that the cable from influencing the circular telegram because of high temperature or dragging the fracture. The utility model has the advantages of high temperature resistance and good tensile strength, light weight, long service life, simple structure, convenient use and easy popularization.

Drawings

Fig. 1 is a cross-sectional structural view of the present invention.

As shown in the figure: 1. a first insulating layer; 2. an insulating inner core; 3. an insulating sleeve; 4. an aluminum wire; 5. a second insulating layer; 6. a flame retardant material; 7. a semiconductor shielding layer; 8. a flame retardant layer; 9. an armor layer; 10. an outer sheath; 11. a sunscreen layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1, an aluminum core crosslinked polyethylene insulated overhead cable comprises an insulating layer 1, wherein a plurality of insulating inner cores 2 are arranged in the insulating layer 1, the insulating inner cores 2 comprise insulating sleeves 3, a plurality of aluminum wires 4 are arranged in the insulating sleeves 3, an insulating layer two 5 is arranged on the periphery of the insulating layer 1, a plurality of insulating inner cores 2 are uniformly distributed between the insulating layer two 5 and the insulating layer 1, flame-retardant materials 6 are filled in gaps between the insulating layer 1 and the insulating layer two 5 and the insulating inner cores 2, a semiconductor shielding layer 7 is fixedly arranged on the periphery of the insulating layer two 5, a flame-retardant layer 8 is wrapped outside the semiconductor shielding layer 7, an armor layer 9 is arranged outside the flame-retardant layer 8, an outer sheath 10 is fixedly arranged outside the armor layer 9, a sun-proof layer 11 is arranged on the outer wall of the outer sheath 10, and a first insulating layer 1 is fixedly provided with an outer sheath 10, The insulating sleeve 3, the insulating layer II 5 and the outer sheath 10 are all made of cross-linked polyethylene materials.

In specific use, the insulation layer I1, the insulation sleeve 3, the insulation layer II 5 and the outer sheath 10 made of the cross-linked polyethylene material can effectively prevent the aluminum conductor 4 from being broken when the cable is pulled, and can reduce the damage of high temperature to the cable; the flame retardant material 6 between the insulating inner cores 2 and the flame retardant layer 8 on the periphery can prevent the fire inside or outside the cable from influencing the integrity of the whole cable; the semiconductor shielding layer 7 can balance the charge of the whole cable and prevent the cable from influencing other electronic products; the sun-proof layer 11 sprayed or dip-coated on the periphery of the outer sheath 10 can prevent harmful rays from damaging the cable, and the service life of the cable is prolonged.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

The present invention and its embodiments have been described above, and the description is not intended to be limiting, and the drawings are only one embodiment of the present invention, and the actual structure is not limited thereto. In summary, those skilled in the art should appreciate that they can readily use the disclosed conception and specific embodiments as a basis for designing or modifying other structures for carrying out the same purposes of the present invention without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. The utility model provides an insulating aerial [ insulated ] cable of aluminium core crosslinked polyethylene which characterized in that: including insulating layer (1), be equipped with a plurality of insulating inner core (2) in insulating layer (1), insulating layer (1) periphery is equipped with insulating layer two (5), evenly distributed has a plurality of insulating inner core (2) between insulating layer two (5) and insulating layer (1), insulating layer two (5) periphery is fixed and is equipped with semiconductor shielding layer (7), semiconductor shielding layer (7) are outer to be equipped with fire-retardant layer (8) around the package, fire-retardant layer (8) are equipped with armor (9) outward, armor (9) external fixation is equipped with oversheath (10), be equipped with sun-proof layer (11) on the outer wall of oversheath (10).

2. The aluminum core crosslinked polyethylene insulated overhead cable of claim 1, wherein: the insulation inner core (2) comprises an insulation sleeve (3), and a plurality of aluminum wires (4) are arranged in the insulation sleeve (3).

3. The aluminum core crosslinked polyethylene insulated overhead cable of claim 1, wherein: and a flame retardant material (6) is filled in gaps between the insulating inner cores (2) in the insulating layer I (1) and the insulating layer II (5).

4. The aluminum core crosslinked polyethylene insulated overhead cable of claim 2, characterized in that: the insulating layer I (1), the insulating sleeve (3), the insulating layer II (5) and the outer sheath (10) are all made of cross-linked polyethylene materials.