CN210052574U - Flame-retardant high-voltage cable - Google Patents

Abstract

The utility model discloses a fire-retardant high-voltage cable relates to high-voltage cable technical field, still needs to strengthen for solving current high-voltage cable fire-retardant heat-proof quality, and the inside a plurality of conductor group zero clearance of high-voltage cable link together can make its heat be difficult to disperse, produces the thermal energy easily and damages the problem of high-voltage cable. The outer wall of high-voltage cable is provided with the anticorrosion protection crust, the inner wall of anticorrosion protection crust is provided with the armor, the inner wall of armor is provided with the bedding, the inner wall of bedding is provided with the filler, the inside of filler is provided with conductor group, conductor group's outer wall is provided with waterproof sheath, waterproof sheath's inner wall is provided with fire-retardant insulating layer, fire-retardant insulating layer's inner wall is provided with the shielding layer, the inner wall of shielding layer is provided with the insulator, the inner wall of insulator is provided with the conductor, one side of conductor group is provided with the interval body.

Description

Flame-retardant high-voltage cable

Technical Field

The utility model relates to a high-voltage cable technical field specifically is a fire-retardant high-voltage cable.

Background

High voltage cables are a generic term for optical cables, electrical cables and the like. The high-voltage cable is one of power cables and is mainly applied to power transmission and distribution, and the high-voltage cable comprises the following components from inside to outside: conductor, insulation, inner sheath, filler, armor, outer insulation. Certainly, the armored high-voltage cable is mainly used for being buried underground, can resist the high-strength compression on the ground, can prevent other external force from damaging, is a bridge between power supply equipment and electric equipment, and plays a role in transmitting electric energy. The method has wide application, so faults also occur frequently, the following briefly analyzes the reasons of the common problems of the high-voltage cable, and the fault is classified into the following categories according to the reasons of the faults: the high-voltage cable has a history of hundreds of years so far due to four major categories of factory manufacturing reasons, construction quality reasons, design unit design reasons and external force damage, and along with the high-speed increase of national economy, the demand of vast power consumers on electric power is increased day by day, and the requirement on power supply reliability is higher and higher.

However, the flame retardant and heat insulating properties of the existing high-voltage cable still need to be enhanced, and the plurality of conductor sets in the high-voltage cable are connected together without gaps, so that the heat of the high-voltage cable is difficult to dissipate, and the high-voltage cable is easy to generate thermal expansion and damage; thus, the existing requirements are not met, for which we propose a flame retardant high voltage cable.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fire-retardant high-voltage cable to the fire-retardant heat-proof quality of current high-voltage cable who proposes in solving above-mentioned background still need strengthen, and the inside a plurality of conductor group zero clearance of high-voltage cable links together and can make its heat be difficult to disperse, produces the thermal energy easily and damages the problem of high-voltage cable, leads to the thermal energy to damage the problem of high-voltage cable.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fire-retardant high-voltage cable, includes high-voltage cable, high-voltage cable's outer wall is provided with the anticorrosion protection crust, the inner wall of anticorrosion protection crust is provided with the armor, the inner wall of armor is provided with the bedding, the inner wall of bedding is provided with the filler, the inside of filler is provided with conductor group, conductor group's outer wall is provided with waterproof sheath, waterproof sheath's inner wall is provided with fire-retardant insulating layer, fire-retardant insulating layer's inner wall is provided with the shielding layer, the inner wall of shielding layer is provided with the insulator, the inner wall of insulator is provided with the conductor, one side of conductor group is provided with the interval body, the outer wall of interval body is provided with thermal-insulated.

Preferably, the inner wall of the waterproof jacket is fixedly connected with the shielding layer through the flame-retardant heat-insulating layer.

Preferably, the inner wall of the heat insulation outer ring is provided with an elastic body.

Preferably, the outer wall of the conductor is fixedly connected with the shielding layer through an insulator.

Preferably, the inner wall of the anticorrosion protective sheath is fixedly connected with the liner layer through armor.

Preferably, the conductor set is provided in plurality.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a fire-retardant insulating layer is used in conductor group, and it has characteristics such as fire-retardant, thermal-insulated, wear-resisting, and protection conductor that can be fine prevents the burning phenomenon that factors such as its heat is too big and frictional force lead to, even if the conductor burns, fire-retardant insulating layer also can prevent the expansion of burning to reduce user's unnecessary economic loss.

2. The elastomer is arranged on the inner wall of the heat insulation outer ring, the spacer is used for enabling the conductor set to generate a gap, the conductor set is prevented from being connected together without gaps to cause heat to be difficult to disperse, thermal expansion is generated and the high-voltage cable is damaged, the outer wall of the spacer is in long-term contact with the conductor set, so that the heat insulation outer ring is needed to insulate heat, the spacer is prevented from being damaged due to overhigh heat of the conductor set, when the conductor set is thermally expanded, the elastomer enables the conductor set in expansion to have large gap movement by utilizing the elasticity of the elastomer, and the conductor set is prevented from being damaged due to mutual.

Drawings

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

fig. 2 is a schematic view of the internal structure of the high-voltage cable of the present invention;

FIG. 3 is a partial enlarged view of the point A of the present invention;

in the figure: 1. a high voltage cable; 2. an anticorrosion protective sheath; 3. armoring; 4. a backing layer; 5. a conductor set; 6. a filler; 7. a waterproof jacket; 8. a flame-retardant heat-insulating layer; 9. a shielding layer; 10. an insulator; 11. a conductor; 12. a spacer; 13. an optical cable; 14. a heat insulation outer ring; 15. an elastomer.

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. 1-3, the present invention provides an embodiment: the utility model provides a fire-retardant high-voltage cable, including high-voltage cable 1, high-voltage cable 1's outer wall is provided with anticorrosion protection crust 2, anticorrosion protection crust 2's inner wall is provided with armor 3, armor 3's inner wall is provided with gasket 4, gasket 4's inner wall is provided with filler 6, filler 6's inside is provided with conductor group 5, conductor group 5's outer wall is provided with waterproof sheath 7, waterproof sheath 7's inner wall is provided with fire-retardant insulating layer 8, fire-retardant insulating layer 8's inner wall is provided with shielding layer 9, shielding layer 9's inner wall is provided with insulator 10, insulator 10's inner wall is provided with conductor 11, one side of conductor group 5 is provided with interval body 12, interval body 12's outer wall is provided with thermal.

Further, the inner wall of the waterproof jacket 7 is fixedly connected with the shielding layer 9 through the flame-retardant heat-insulating layer 8, the waterproof jacket 7 protects the conductor 11 at the periphery, the phenomenon that water and moisture penetrate into the conductor 11 to cause the fault and even the short circuit of the conductor 11 is prevented, the high-voltage cable 1 generally works along with electric power and friction, both of which are very likely to cause combustion damage of the high voltage cable 1, while the flame retardant and insulating layer 8 acts inside the conductor set 5, it has the characteristics of flame retardance, heat insulation, wear resistance and the like, can well protect the conductor 11, prevent the combustion phenomenon caused by the factors such as excessive heat, friction and the like, even if the conductor 11 is combusted, the flame-retardant heat-insulating layer 8 can also prevent the combustion from being expanded, thereby reducing unnecessary economic loss of users, and the shielding layer 9 is a metal braided fabric casing specially adopted for reducing the influence of an external electromagnetic field on a power supply or a communication line, and also has the function of preventing the electromagnetic energy from being radiated outwards by the line.

Furthermore, the inner wall of the heat insulation outer ring 14 is provided with an elastic body 15, the spacing body 12 is used for enabling the conductor group 5 to generate a gap, and the phenomenon that heat is difficult to dissipate due to the fact that the conductor group 5 is connected together without a gap is avoided, so that thermal expansion is generated and the high-voltage cable is damaged, the outer wall of the spacing body 12 needs to insulate heat through the heat insulation outer ring 14 due to long-term contact with the conductor group 5, the fact that the spacing body 12 is damaged due to the fact that the heat of the conductor group 5 is too high is avoided, when the conductor group 5 is thermally expanded, the elastic body 15 enables the conductor group 5 in expansion to have a large gap to move due to the.

Further, the outer wall of the conductor 11 is fixedly connected with the shielding layer 9 through an insulator 10, and the insulator 10 is a non-conductive substance which isolates or wraps the electric body to provide a protection measure for electric shock.

Further, the inner wall of anticorrosion protection crust 2 passes through armor 3 and backing layer 4 fixed connection, anticorrosion protection crust 2 is used for outermost, be used for protecting whole high voltage cable 1, general high voltage cable is at the bottom of the ground either aerial, and anticorrosion protection crust 2 it can protect high voltage cable 1 not receive the influence that the wind blows the sun in the sky, then protect high voltage cable 1 not receive the corrosion pollution of environment at the bottom of the ground, armor 3 is one deck metal protection, receive the damage when transportation and installation in order to avoid inside utility layer, thereby promote the security and the fastness of whole high voltage cable 1.

Further, conductor set 5 is provided with a plurality of, and a plurality of conductor set 5 is constituteed together, and is more high-efficient when making high voltage cable 1 transmit electric power.

The working principle is as follows: when in use, the waterproof jacket 7 protects the conductor 11 at the periphery, and prevents water and moisture from permeating into the conductor 11 to cause the fault and even short circuit of the conductor 11, the high-voltage cable 1 generally works along with electric power and friction, the two are easy to cause the combustion damage of the high-voltage cable 1, the flame-retardant heat-insulating layer 8 acts in the conductor group 5, and has the characteristics of flame retardance, heat insulation, wear resistance and the like, the conductor 11 can be well protected, the combustion phenomenon caused by the factors such as excessive heat and friction can be prevented, even if the conductor 11 burns, the flame-retardant heat-insulating layer 8 can also prevent the combustion from being expanded, thereby reducing the unnecessary economic loss of a user, the shielding layer 9 is a metal braided fabric shell specially adopted for reducing the influence of an external electromagnetic field on a power supply or a communication line, the metal braided fabric shell also has the function of preventing the line from radiating electromagnetic energy outwards, the inner, the spacing body 12 is used for generating a gap between the conductor sets 5, preventing the conductor sets 5 from being connected together without a gap to cause heat to be difficult to radiate, thereby generating thermal expansion and damaging the high-voltage cable, the outer wall of the spacing body 12 needs a thermal insulation outer ring 14 for thermal insulation because of long-term contact with the conductor sets 5, preventing the spacing body 12 from being damaged due to overhigh heat of the conductor sets 5, when the conductor sets 5 thermally expand, the elastic body 15 utilizes the elasticity thereof to enable the conductor sets 5 in expansion to have a larger gap to move, thereby preventing the conductor sets 5 from being damaged by the high-voltage cable 1 due to mutual thermal expansion friction, the outer wall of the conductor 11 is fixedly connected with the shielding layer 9 through the insulating body 10, the insulating body 10 is a non-conductive substance which isolates or wraps the electric body, thereby achieving a protective measure for electric shock protection, the protective sheath 2 acts on the outermost part and is, generally, the high-voltage cable is at the bottom of the ground either in the air, and the anti-corrosion protection crust 2 can protect the high-voltage cable 1 in the air from being influenced by wind and sunshine, and then protect the high-voltage cable 1 from being corroded and polluted by the environment at the bottom of the ground, and the armor 3 is a layer of metal protection, so that the internal utility layer is prevented from being damaged during transportation and installation, and the safety and the firmness of the whole high-voltage cable 1 are improved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. A flame retardant high voltage cable comprising a high voltage cable (1), characterized in that: the outer wall of the high-voltage cable (1) is provided with an anti-corrosion protection sheath (2), the inner wall of the anti-corrosion protection sheath (2) is provided with an armor (3), the inner wall of the armor (3) is provided with a lining layer (4), the inner wall of the lining layer (4) is provided with a filler (6), the inside of the filler (6) is provided with a conductor set (5), the outer wall of the conductor set (5) is provided with a waterproof jacket (7), the inner wall of the waterproof jacket (7) is provided with a flame-retardant heat-insulating layer (8), the inner wall of the flame-retardant heat-insulating layer (8) is provided with a shielding layer (9), the inner wall of the shielding layer (9) is provided with an insulator (10), the inner wall of the insulator (10) is provided with a conductor (11), one side of the conductor set (5) is provided with, an optical cable (13) is arranged below the spacing body (12).

2. A fire retardant high voltage cable according to claim 1, characterized in that: the inner wall of the waterproof jacket (7) is fixedly connected with the shielding layer (9) through the flame-retardant heat-insulating layer (8).

3. A fire retardant high voltage cable according to claim 1, characterized in that: and an elastic body (15) is arranged on the inner wall of the heat insulation outer ring (14).

4. A fire retardant high voltage cable according to claim 1, characterized in that: the outer wall of the conductor (11) is fixedly connected with the shielding layer (9) through an insulator (10).

5. A fire retardant high voltage cable according to claim 1, characterized in that: the inner wall of the anti-corrosion protective outer skin (2) is fixedly connected with the liner layer (4) through the armor (3).

6. A fire retardant high voltage cable according to claim 1, characterized in that: the conductor set (5) is provided with a plurality of conductors.

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