CN218159735U

CN218159735U - Safety overhead insulated conductor

Info

Publication number: CN218159735U
Application number: CN202222029715.2U
Authority: CN
Inventors: 李占道; 范钦伟
Original assignee: Henan Canon Power Materials Co ltd
Current assignee: Henan Canon Power Materials Co ltd
Priority date: 2022-08-03
Filing date: 2022-08-03
Publication date: 2022-12-27
Anticipated expiration: 2032-08-03

Abstract

The utility model discloses a safe type insulated air wire belongs to air wire technical field. A safety overhead insulated wire comprises a cable main body and an outer protective layer, wherein a wire core is arranged in the middle of the cable main body, an inner protective layer is arranged on the outer wall of the wire core, the inner protective layer comprises an outer insulating layer and an outer insulating layer, the inner wall of the outer insulating layer is provided with the wire core, the outer protective layer is arranged on the outer side of the inner protective layer, the outer protective layer comprises an outer protective sleeve and a silicon wire mesh, the inner wall of the outer protective sleeve is provided with the silicon wire mesh, the wire core comprises a conductor and an inner liner layer, and an inner insulating layer is arranged between the conductor and the inner liner layer; the utility model relates to a relatively poor problem that leads to generating heat between the inside sinle silk of blowing of sinle silk heat dispersion among the solution prior art.

Description

Safety overhead insulated conductor

Technical Field

The utility model relates to an overhead conductor technical field especially relates to a safe type overhead insulated conductor.

Background

The overhead cable is a main component of the power transmission line, and has the functions of transmitting current and protecting transmission power, because the overhead cable is erected on a tower, a lead is subjected to the external load of dead weight, wind, snow, ice and the like and is corroded by chemical substances contained in the surrounding air, the overhead cable is a main component of the power transmission line, and has the functions of transmitting current and protecting transmission power, because the overhead cable is erected on the tower, the lead is subjected to the external load of dead weight, wind, snow, ice and the like and is corroded by the chemical substances contained in the surrounding air;

the existing overhead conductor has a single internal structure, is corroded by the external environment when used in severe environments, is damaged by relative friction when the conductor swings, and is relatively sealed due to the fact that the cable core is wrapped by the outer layer of the cable, heat insulation performance is poor, heat is generated between the internal cable cores, and the power utilization requirements of people are affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the relatively poor inside sinle silk heat dispersion that leads to generates heat between the sinle silk blows among the prior art, and the overhead insulated conductor of a safe type that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a safe type aerial insulated wire, includes cable main part and outer jacket, cable main part middle part is provided with the sinle silk, sinle silk outer wall is provided with interior sheath, interior sheath is including outer insulating layer and outer insulating layer, and outer insulating layer inner wall is provided with outer insulating layer, outer insulating layer inner wall is equipped with the sinle silk, the interior sheath outside is provided with the outer jacket, the outer jacket is including oversheath and silicon silk screen, the oversheath inner wall is provided with the silicon silk screen.

Preferably, the wire core comprises a conductor and an inner lining layer, and an inner insulating layer is arranged between the conductor and the inner lining layer.

Preferably, the conductors are arranged in four groups in a centrosymmetric manner, and each group of conductors is formed by stranding a plurality of round copper Shan Xianshu and then twisting the stranded conductors.

Preferably, the sinle silk inboard is provided with spacing, spacing middle part is provided with the filler core, the wire casing has been seted up to spacing outer wall, wire casing and sinle silk adaptation.

Preferably, a filling layer is filled between the limiting strips and the outer heat insulation layer, and the filling layer is specifically ethylene propylene diene monomer.

Preferably, toughness reinforcing cores are arranged between the outer heat insulation layer and the outer insulation layer and are distributed in a centrosymmetric and uniform manner.

Preferably, the outer sheath is coated by a silicon rubber material extrusion structure, and the outer wall of the outer sheath is uniformly coated with high-temperature-resistant paint.

Compared with the prior art, the utility model provides a safe type overhead insulated conductor possesses following beneficial effect:

1. the flexible limiting strip is arranged at the center position in the cable main body, so that friction between the wire cores is avoided, meanwhile, a heat insulation effect is achieved between the wire cores, the insulation aging speed is reduced, the service life of the cable main body is effectively prolonged, the filling core arranged at the center of the limiting strip enables the cable main body to have certain bearing performance, and the conductor main body is protected from internal friction;

2. through the toughness reinforcing core that central symmetric distribution set up, when improving cable main part pliability for this cable has higher performance of erectting, improves air wire's tensile ability through the silicon silk screen that sets up, and the oversheath makes the cable wear-resisting more, resistance to compression, stress cracking nature good with setting up of filling layer, makes the injury of outside atress reduction to inside conductor body.

Drawings

Fig. 1 is the utility model relates to a safe type overhead insulated conductor's overall structure schematic diagram.

Fig. 2 is the utility model relates to a cross-sectional structure schematic diagram of safe type insulated wire that makeships.

Fig. 3 is the utility model relates to a sinle silk structure sketch map of safe type overhead insulated conductor.

Fig. 4 is the utility model relates to a spacing structure schematic diagram of safe type insulated wire that makeships.

In the figure:

1. a cable body; 2. an outer jacket; 3. an inner protective layer; 4. a wire core; 5. an outer sheath; 6. a silicon screen; 7. an outer insulating layer; 8. a ductile reinforcing core; 9. an outer insulating layer; 10. a filling layer; 11. a conductor; 12. a limiting strip; 13. filling the core; 14. an inner liner layer; 15. an inner insulating layer; 16. a wire slot.

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.

Referring to fig. 1-4, a safe overhead insulated conductor comprises a cable main body 1 and an outer protective layer 2, wherein a cable core 4 is arranged in the middle of the cable main body 1, an inner protective layer 3 is arranged on the outer wall of the cable core 4, the inner protective layer 3 comprises an outer insulating layer 7 and an outer insulating layer 9, the inner wall of the outer insulating layer 7 is provided with the outer insulating layer 9, the inner wall of the outer insulating layer 9 is provided with the cable core 4, the outer protective layer 2 is arranged on the outer side of the inner protective layer 3, the outer protective layer 2 comprises an outer protective layer 5 and a silicon wire mesh 6, and the inner wall of the outer protective layer 5 is provided with the silicon wire mesh 6.

In this embodiment, play the guard action to cable main part 1 through oversheath 5, protect the outside heat-resisting of cable main part 1, wear-resisting, insulating properties, guarantee that the cable is normal use under various environment, prevent that the cable from being heated the damage, silicon silk screen 6 twines and covers the tensile property that improves cable main part 1 between oversheath 5 and outer insulating layer 7, in the cable use, tentatively play insulating effect through outer insulating layer 7, guarantee the security of cable main part 1 use, fire-resistant filling layer 10 blocks the heat conduction between each sinle silk 4, prevent that the heat from piling up in inside, the packing core 13 that the center of spacing strip 12 set up makes cable main part 1 have certain pressure-bearing performance, in practical application, also can change the arrangement and the quantity of arranging of cable core and spacing strip 12 according to actual need, do not specifically injectd here.

Referring to fig. 3, the wire core 4 includes a conductor 11 and an inner liner 14, an inner insulating layer 15 is arranged between the conductor 11 and the inner liner 14, the inner liner 14 is arranged to protect the conductor 11, the inner insulating layer 15 enables the wire core 4 to have good insulating performance, and the overall insulating performance of the cable main body 1 is improved.

Referring to fig. 2, four groups of conductors 11 are arranged in a central symmetry manner, each group of conductors 11 are formed by twisting a plurality of round copper Shan Xianshu into one strand and then are formed by twisting a plurality of strands, the conductors 11 are twisted and combined more tightly after being cabled, the amount of materials such as a wrapping bag, an armor and an outer sheath 5 can be reduced by using the filling material, the outer diameter of the cable is effectively reduced, the bending performance is improved, the tensile strength is improved, the conductors 11 can be reasonably arranged by twisting, the cable is more round, and the effect of saving the manufacturing and mounting cost is achieved.

Referring to fig. 4, 4 inboards of sinle silk are provided with spacing 12, spacing 12 middle parts are provided with filler core 13, wire casing 16 has been seted up to spacing 12 outer wall, wire casing 16 and sinle silk 4 adaptation, spacing 12 can be so that keep apart each other between sinle silk 4, avoid producing heat between sinle silk 4 and the sinle silk 4 and lead to the cable to move overheated, transmission efficiency descends, filler core 13 that the center set up can improve the bearing capacity of cable main part 1, wire casing 16 that spacing 12 formed is convenient for fix a position sinle silk 4, avoid the pressurized to make looks mutual friction between sinle silk 4.

Referring to fig. 2, a filling layer 10 is filled between the limiting strips 12 and the outer heat insulation layer 9, the filling layer 10 is specifically ethylene propylene diene monomer, the filling layer 10 is made of ethylene propylene diene monomer, the ethylene propylene diene monomer has good fire resistance, high tensile strength and corrosion resistance, and the structural performance of the cable main body 1 is effectively improved.

Referring to fig. 2, be provided with toughness between outer insulating layer 9 and the outer insulating layer 7 and strengthen core 8, toughness is strengthened core 8 and is central symmetry evenly distributed, and toughness is strengthened core 8 and is adopted low carbon galvanized steel wire to make, strengthens core 8 between outer insulating layer 9 and outer insulating layer 7 through setting up multiunit toughness, erects the in-process at cable main part 1 for cable main part 1 plays the effect of support and tensile, further improves the device's performance.

Referring to fig. 1, the outer sheath 5 is coated by a silicon rubber material extrusion structure, high-temperature-resistant paint is uniformly coated on the outer wall of the outer sheath 5, corrosion resistance is improved, the outer sheath 5 is made to have high insulation and wear resistance through the silicon rubber material, the high-temperature paint is arranged to enable the cable main body 1 to isolate external temperature, and influence of external factors on the cable is reduced.

The working principle is as follows: play the guard action to cable main part 1 through oversheath 5, protect the heat-resisting of 1 outside of cable main part, wear-resisting, insulating properties, guarantee cable normal use under various environment, prevent that the cable from being heated the damage, silicon silk screen 6 twines the tensile strength who covers improvement cable main part 1 between oversheath 5 and external insulation layer 7, in the cable use, tentatively play insulating effect through external insulation layer 7, guarantee the security of cable main part 1 use, fire-resistant filling layer 10 blocks the heat conduction between each sinle silk 4, prevent that the heat from piling up in inside, the packing core 13 that the center of spacing strip 12 set up makes cable main part 1 have certain pressure-bearing performance, spacing strip 12 can be so that mutual isolation between sinle silk 4, avoid producing heat between sinle silk 4 and the sinle silk 4 and lead to the cable operation overheated, transmission efficiency descends, the packing core 13 that the center set up can improve the pressure-bearing performance of cable main part 1, wire casing 16 that spacing strip 12 formed is convenient for fixing a position sinle silk 4, avoid the pressure to make mutual friction between sinle silk 4, prolong the life of cable main part 1.

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.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims

1. The utility model provides a safe type aerial insulated wire, includes cable main part (1) and outer jacket (2), its characterized in that, cable main part (1) middle part is provided with sinle silk (4), sinle silk (4) outer wall is provided with interior sheath (3), interior sheath (3) are including outer insulating layer (7) and outer insulating layer (9), and outer insulating layer (7) inner wall is provided with outer insulating layer (9), outer insulating layer (9) inner wall is equipped with sinle silk (4), interior sheath (3) outside is provided with outer jacket (2), outer jacket (2) are including oversheath (5) and silicon silk screen (6), oversheath (5) inner wall is provided with silicon silk screen (6).

2. The safety overhead insulated conductor according to claim 1, characterized in that the core (4) comprises a conductor (11) and an inner liner (14), and an inner insulating layer (15) is arranged between the conductor (11) and the inner liner (14).

3. The safety overhead insulated conductor according to claim 2, wherein the conductors (11) are arranged in four groups in a centrosymmetric manner, and each group of conductors (11) is formed by twisting a plurality of round copper Shan Xianshu into one strand.

4. The safe overhead insulated conductor according to claim 2, characterized in that a limiting strip (12) is arranged on the inner side of the wire core (4), a filling core (13) is arranged in the middle of the limiting strip (12), a wire groove (16) is formed in the outer wall of the limiting strip (12), and the wire groove (16) is matched with the wire core (4).

5. The safety overhead insulated conductor according to claim 4, wherein a filling layer (10) is filled between the limiting strip (12) and the outer heat insulation layer (9), and the filling layer (10) is ethylene propylene diene monomer.

6. The safety overhead insulated conductor according to claim 1, characterized in that a tough reinforcing core (8) is arranged between the outer insulating layer (9) and the outer insulating layer (7), and the tough reinforcing cores (8) are distributed uniformly and centrally symmetrically.

7. The safety type overhead insulated conductor according to claim 1, wherein the outer sheath (5) is coated by a silicon rubber material extrusion structure, and the outer wall of the outer sheath (5) is uniformly coated with high-temperature-resistant paint.