CN113380444A - Withstand voltage power cable of preventing soaking - Google Patents

Withstand voltage power cable of preventing soaking Download PDF

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Publication number
CN113380444A
CN113380444A CN202110642466.1A CN202110642466A CN113380444A CN 113380444 A CN113380444 A CN 113380444A CN 202110642466 A CN202110642466 A CN 202110642466A CN 113380444 A CN113380444 A CN 113380444A
Authority
CN
China
Prior art keywords
layer
resistant
pressure
waterproof
reinforcing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202110642466.1A
Other languages
Chinese (zh)
Inventor
姚炜
胡蕾
杨月岭
李龙飞
郑昌帅
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yangzhou Xintong Traffic Equipment Group Co ltd
Original Assignee
Yangzhou Xintong Traffic Equipment Group Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yangzhou Xintong Traffic Equipment Group Co ltd filed Critical Yangzhou Xintong Traffic Equipment Group Co ltd
Priority to CN202110642466.1A priority Critical patent/CN113380444A/en
Publication of CN113380444A publication Critical patent/CN113380444A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B9/00—Power cables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/2806—Protection against damage caused by corrosion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/28—Protection against damage caused by moisture, corrosion, chemical attack or weather
    • H01B7/282—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable
    • H01B7/2825—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable using a water impermeable sheath
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00—Insulated conductors or cables characterised by their form
    • H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/29—Protection against damage caused by extremes of temperature or by flame
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00—Adapting or protecting infrastructure or their operation
    • Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables

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  • Insulated Conductors (AREA)

Abstract

The invention relates to the technical field of power cables and discloses a pressure-resistant and water-immersion-resistant power cable. According to the invention, the outer pressure-resistant layer is arranged outside the cable jacket, the third reinforcing layer is arranged inside the outer pressure-resistant layer, so that the cable has a good pressure-resistant effect, and the third filling layer and the second buffer layer are arranged on the inner side of the third reinforcing layer, so that the pressure-resistant effect can be effectively improved, and the service life of the cable is prolonged.

Description

Withstand voltage power cable of preventing soaking
Technical Field
The invention relates to the technical field of power cables, in particular to a pressure-resistant and water immersion-resistant power cable.
Background
The power cable is used for transmitting and distributing electric energy, is usually used for urban underground power grids, power station leading-out lines, power supply inside industrial and mining enterprises and underwater power transmission lines crossing river and sea, and is mainly composed of a core, an insulating layer, a shielding layer and a protective layer.
However, the existing power cable is easily subjected to external pressure, so that the power cable is damaged, the normal use of the power cable is affected, and the power cable is generally contacted with the outside, so that water can infiltrate into the power cable, the cable is short-circuited, and safety is problematic. Accordingly, those skilled in the art have provided a pressure-resistant and watertight power cable to solve the problems set forth in the above background art.
Disclosure of Invention
The invention aims to provide a pressure-resistant and water-immersion-resistant power cable to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a withstand voltage power cable that prevents soaking, includes the cable jacket, the outside of cable jacket is provided with outer resistance to pressure layer, and the inside of cable jacket is provided with interior resistance to pressure layer, the armor is installed to the inboard of interior resistance to pressure layer, the inside of armor is provided with first water proof membrane, the inboard of first water proof membrane is provided with the waterproof layer, the internally mounted of waterproof layer has the shielding layer, the inside of shielding layer is provided with the restrictive coating, the inside of restrictive coating is provided with electric core, and the outside packing of electric core of the inside of restrictive coating has first filling layer.
As a still further scheme of the invention: the inner side of the inner pressure-resistant layer is provided with a first reinforcing layer, the inner side of the first reinforcing layer is filled with a second filling layer, the inner side of the second filling layer is provided with a second reinforcing layer, and the inner side of the second reinforcing layer is provided with a first buffer layer and a first reinforcing net from inside to outside respectively.
As a still further scheme of the invention: the thickness of the first reinforcing layer is twice that of the second reinforcing layer, the first reinforcing layer is made of high-fiber polyester materials, and the first reinforcing net is a copper wire net.
As a still further scheme of the invention: the buffer spring is arranged inside the second filling layer, the second filling layer is made of polyester fiber materials, the thickness of the first buffer layer is the same as that of the first reinforcing net, and the first buffer layer is made of rubber.
As a still further scheme of the invention: the inner side of the outer pressure-resistant layer is provided with a third reinforcing layer, the inner side of the third reinforcing layer is filled with a third filling layer, a buffer part is arranged inside the third filling layer, and a second buffer layer is arranged on the inner side of the third filling layer.
As a still further scheme of the invention: the bolster is semi-circular setting, and the material of bolster is rubber, the bolster is provided with sixteen at the inside equidistance of third filling layer.
As a still further scheme of the invention: the thickness of the third reinforcing layer is twice that of the outer pressure-resistant layer, the thickness of the second buffer layer is the same as that of the outer pressure-resistant layer, and the second buffer layer is made of rubber.
As a still further scheme of the invention: the waterproof layer is characterized in that waterproof glue is arranged on the inner side of the waterproof layer, a second waterproof film is adhered to the inner side of the waterproof glue, a waterproof coating is coated on the inner side of the second waterproof film, and an anticorrosive layer and a fireproof layer are arranged inside the waterproof coating from inside to outside respectively.
As a still further scheme of the invention: the thickness of flame retardant coating is the same with the anticorrosive coating, the anticorrosive coating is the silicon rubber coating, waterproof coating is polyurethane waterproof coating.
As a still further scheme of the invention: the thickness of the second waterproof film is twice of the thickness of the waterproof layer, the material of the second waterproof film is the same as that of the waterproof layer, and the second waterproof film is made of polyethylene.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the cable, the outer pressure-resistant layer is arranged outside the cable jacket, the third reinforcing layer is arranged inside the outer pressure-resistant layer, so that the cable has a good pressure-resistant effect, the third filling layer and the second buffer layer are arranged on the inner side of the third reinforcing layer, so that the pressure-resistant effect can be effectively improved, the service life of the cable is prolonged, the arrangement structure is simple, and the pressure resistance of the cable is good;
2. the arrangement of the inner pressure-resistant layer is utilized, and the first buffer layer and the second filling layer are arranged inside the inner pressure-resistant layer, so that the pressure resistance of the whole cable can be improved, meanwhile, the strength of the cable can be improved through the arrangement of the second reinforcing layer and the first reinforcing net, the cable can be protected, and the service life of the cable is prolonged;
3. utilize the setting of first waterproof membrane and waterproof layer, can prevent the cable flooding effectively to through the inboard setting of the waterproof second waterproof membrane through the waterproof glue adhesion of waterproof layer, can improve the effect of preventing flooding, thereby prevent that the cable is inside to be flooded and lead to the cable short circuit to damage, and through the setting of anticorrosive coating and flame retardant coating, make the improvement to the protection of cable.
Drawings
FIG. 1 is a schematic structural view of a pressure-resistant and water-immersion resistant power cable;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a schematic structural diagram of a second filling layer in the pressure-resistant water-immersion-resistant power cable;
FIG. 4 is a schematic structural diagram of an outer pressure-resistant layer in a pressure-resistant water immersion-resistant power cable;
fig. 5 is a schematic structural view of a waterproof layer in a pressure-resistant and water-immersion-resistant power cable.
In the figure: 1. an outer voltage-resistant layer; 2. a cable jacket; 3. an inner pressure-resistant layer; 4. an armor layer; 5. a first water-resistant film; 6. a waterproof layer; 7. a shielding layer; 8. a sheath layer; 9. a first filling layer; 10. an electric core; 11. a first reinforcing layer; 12. a second reinforcing layer; 13. a second filling layer; 14. a first buffer layer; 15. a first reinforcing mesh; 16. a buffer spring; 17. a third reinforcing layer; 18. a third filling layer; 19. a second buffer layer; 20. a buffer member; 21. waterproof glue; 22. an anticorrosive layer; 23. a fire barrier layer; 24. a second water-resistant film; 25. and (3) a waterproof coating.
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.
Referring to fig. 1 to 5, in the embodiment of the present invention, a voltage-resistant and water-immersion-resistant power cable includes a cable jacket 2, an outer voltage-resistant layer 1 is disposed outside the cable jacket 2, a third reinforcing layer 17 is disposed inside the outer voltage-resistant layer 1, a third filling layer 18 is filled inside the third reinforcing layer 17, a buffer 20 is disposed inside the third filling layer 18, a second buffer layer 19 is disposed inside the third filling layer 18, the buffer 20 is disposed in a semicircular shape, the buffer 20 is made of rubber, sixteen buffers 20 are disposed inside the third filling layer 18 at equal intervals, the thickness of the third reinforcing layer 17 is twice the thickness of the outer voltage-resistant layer 1, the thickness of the second buffer layer 19 is the same as the thickness of the outer voltage-resistant layer 1, and the second buffer layer 19 is made of rubber, the outer voltage-resistant layer 1 is disposed outside the cable jacket 2, and the third reinforcing layer 17 is disposed inside the outer voltage-resistant layer 1, therefore, the cable has a good pressure-resistant effect, the third filling layer 18 and the second buffer layer 19 are arranged on the inner side of the third reinforcing layer 17, the pressure-resistant effect can be effectively improved, the service life of the cable is prolonged, the arrangement structure is simple, and the pressure resistance of the cable is good.
In fig. 1 and 4: the inner part of the cable jacket 2 is provided with an inner pressure-resistant layer 3, the inner side of the inner pressure-resistant layer 3 is provided with a first reinforcing layer 11, the inner side of the first reinforcing layer 11 is filled with a second filling layer 13, the inner side of the second filling layer 13 is provided with a second reinforcing layer 12, the inner side of the second reinforcing layer 12 is respectively provided with a first buffer layer 14 and a first reinforcing net 15 from inside to outside, the thickness of the first reinforcing layer 11 is twice of that of the second reinforcing layer 12, the first reinforcing layer 11 is made of high-fiber polyester material, the first reinforcing net 15 is made of copper metal wire net, the inner part of the second filling layer 13 is provided with a buffer spring 16, the second filling layer 13 is made of polyester fiber material, the first buffer layer 14 is as thick as the first reinforcing net 15, the first buffer layer 14 is made of rubber, the inner pressure-resistant layer 3 is arranged, and the first buffer layer 14 and the second filling layer 13 are arranged inside the inner pressure-resistant layer 3, thereby can improve the holistic pressure resistance of cable, simultaneously through the setting of second back up coat 12 and first reinforcing network 15, can improve the intensity of cable, and then can protect the cable, increase the life of cable.
In fig. 1 and 5: the armor layer 4 is installed on the inner side of the inner pressure-resistant layer 3, a first waterproof film 5 is arranged inside the armor layer 4, a waterproof layer 6 is arranged on the inner side of the first waterproof film 5, a shielding layer 7 is installed inside the waterproof layer 6, a sheath layer 8 is arranged inside the shielding layer 7, a battery core 10 is arranged inside the sheath layer 8, a first filling layer 9 is filled inside the sheath layer 8 on the outer side of the battery core 10, waterproof glue 21 is arranged on the inner side of the waterproof layer 6, a second waterproof film 24 is adhered to the inner side of the waterproof glue 21, a waterproof coating 25 is coated on the inner side of the second waterproof film 24, an anti-corrosion layer 22 and a fireproof layer 23 are respectively arranged inside the waterproof coating 25 from inside to outside, the fireproof layer 23 is the same as the anti-corrosion layer 22, the anti-corrosion layer 22 is a silicone rubber coating, the waterproof coating 25 is a polyurethane waterproof coating, the thickness of the second waterproof film 24 is twice that of the waterproof layer 6, and the second waterproof film 24 is the same as that of the waterproof layer 6, and second water proof membrane 24 is the polyethylene material, utilizes first water proof membrane 5 and waterproof layer 6's setting, can prevent effectively that the cable from soaking to through the inboard setting of second water proof membrane 24 through waterproof glue 21 adhesion of waterproof layer 6, can improve the effect of preventing soaking, thereby prevent that the cable is inside to soak and lead to the cable short circuit to damage, and through anticorrosive coating 22 and flame retardant coating 23's setting, make the protection of improvement to the cable.
The working principle of the invention is as follows: an outer pressure-resistant layer 1 is arranged outside a cable jacket 2, a third reinforcing layer 17 is arranged inside the outer pressure-resistant layer 1, so that the cable has a good pressure-resistant effect, a third filling layer 18 and a second buffer layer 19 are arranged inside the third reinforcing layer 17, so that the pressure-resistant effect can be effectively improved, the service life of the cable can be prolonged, a buffer 20 is arranged inside the third filling layer 18, the buffer 20 is arranged in a hemispherical shape, the buffer 20 is made of rubber, so that the buffer effect on the cable jacket 2 can be well achieved, so that the good pressure-resistant protection effect on the outside of the cable jacket 2 can be achieved, an inner pressure-resistant layer 3 is arranged inside the cable jacket 2, a first buffer layer 14 and a second filling layer 13 are arranged inside the inner pressure-resistant layer 3, so that the pressure resistance of the whole cable can be improved, meanwhile, the strength of the cable can be improved by arranging the second reinforcing layer 12 and the first reinforcing layer 11, the buffer spring 16 is arranged in the second filling layer 13, so that the overall pressure resistance of the cable is improved, and by arranging the first reinforcing net 15, the first reinforcing net 15 is a copper wire mesh, so that the first reinforcing net 15 can be deformed, thereby not influencing the normal use of the cable, further protecting the cable and prolonging the service life of the cable, the first waterproof film 5 is arranged on the inner side of the armor layer 4, the waterproof layer 6 is arranged on the inner side of the first waterproof film 5, the first waterproof film 5 can obstruct the water source from entering, and by arranging the waterproof layer 6, the waterproof effect can be improved by arranging the second waterproof film 24 adhered to the inner side of the waterproof layer 6 through the waterproof glue 21, and the waterproof coating 25 is coated below the second waterproof film 24, and then make waterproof effect better to prevent that the cable is inside to soak and lead to the cable short circuit to damage, and through be provided with anticorrosive coating 22 and flame retardant coating 23 in waterproof coating 25's below, make the protection to the cable improve, increase power cable's life.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. 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.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (10)

1. The utility model provides a withstand voltage prevents power cable that soaks, includes cable jacket (2), its characterized in that, the outside of cable jacket (2) is provided with outer resistance to pressure (1), and the inside of cable jacket (2) is provided with interior resistance to pressure (3), armor (4) are installed to the inboard of interior resistance to pressure (3), the inside of armor (4) is provided with first water proof membrane (5), the inboard of first water proof membrane (5) is provided with waterproof layer (6), the internally mounted of waterproof layer (6) has shielding layer (7), the inside of shielding layer (7) is provided with restrictive coating (8), the inside of restrictive coating (8) is provided with electric core (10), and the inside of restrictive coating (8) is filled first filling layer (9) in the outside of electric core (10).
2. A pressure-resistant and water-immersion-resistant power cable as claimed in claim 1, wherein a first reinforcing layer (11) is arranged on the inner side of the inner pressure-resistant layer (3), a second filling layer (13) is filled on the inner side of the first reinforcing layer (11), a second reinforcing layer (12) is arranged on the inner side of the second filling layer (13), and a first buffer layer (14) and a first reinforcing net (15) are respectively arranged on the inner side of the second reinforcing layer (12) from inside to outside.
3. A pressure resistant and water immersion resistant power cable according to claim 2, characterized in that the thickness of the first reinforcing layer (11) is twice the thickness of the second reinforcing layer (12), and the first reinforcing layer (11) is a high fiber polyester material, and the first reinforcing mesh (15) is a copper wire mesh.
4. A pressure-resistant and water-proof power cable as claimed in claim 2, wherein the second filling layer (13) is internally provided with a buffer spring (16), the second filling layer (13) is made of polyester fiber material, the first buffer layer (14) and the first reinforcing mesh (15) have the same thickness, and the first buffer layer (14) is made of rubber.
5. A pressure-resistant and water-immersion-resistant power cable as claimed in claim 1, characterized in that a third reinforcing layer (17) is arranged on the inner side of the outer pressure-resistant layer (1), a third filling layer (18) is filled on the inner side of the third reinforcing layer (17), a buffer (20) is arranged inside the third filling layer (18), and a second buffer (19) is arranged on the inner side of the third filling layer (18).
6. A pressure-resistant and water-immersion resistant power cable as claimed in claim 5, characterized in that said buffer (20) is arranged in a semicircular shape, the material of said buffer (20) is rubber, and said buffer (20) is arranged sixteen equally spaced inside said third filling layer (18).
7. The pressure-resistant and water-immersion-resistant power cable as claimed in claim 5, wherein the thickness of the third reinforcing layer (17) is twice the thickness of the outer pressure-resistant layer (1), the thickness of the second buffer layer (19) is the same as the thickness of the outer pressure-resistant layer (1), and the second buffer layer (19) is made of rubber.
8. A pressure-resistant and water-immersion-resistant power cable as claimed in claim 1, characterized in that a waterproof glue (21) is arranged on the inner side of the waterproof layer (6), a second waterproof film (24) is adhered to the inner side of the waterproof glue (21), the inner side of the second waterproof film (24) is coated with a waterproof coating (25), and an anticorrosive layer (22) and a fireproof layer (23) are respectively arranged inside the waterproof coating (25) from inside to outside.
9. The pressure-resistant and water-immersion-resistant power cable according to claim 8, wherein the fire-resistant layer (23) and the corrosion-resistant layer (22) have the same thickness, the corrosion-resistant layer (22) is a silicone rubber coating, and the waterproof coating (25) is a polyurethane waterproof coating.
10. The pressure-resistant and water-immersion-resistant power cable according to claim 8, wherein the thickness of the second waterproof film (24) is twice the thickness of the waterproof layer (6), the material of the second waterproof film (24) is the same as that of the waterproof layer (6), and the second waterproof film (24) is made of polyethylene.
CN202110642466.1A 2021-06-09 2021-06-09 Withstand voltage power cable of preventing soaking Pending CN113380444A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110642466.1A CN113380444A (en) 2021-06-09 2021-06-09 Withstand voltage power cable of preventing soaking

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110642466.1A CN113380444A (en) 2021-06-09 2021-06-09 Withstand voltage power cable of preventing soaking

Publications (1)

Publication Number Publication Date
CN113380444A true CN113380444A (en) 2021-09-10

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ID=77573303

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110642466.1A Pending CN113380444A (en) 2021-06-09 2021-06-09 Withstand voltage power cable of preventing soaking

Country Status (1)

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CN (1) CN113380444A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0391012A1 (en) * 1989-04-07 1990-10-10 Siemens Aktiengesellschaft Extrudable polymer blend for electric cables, and electric cable inner layer containing same
CN112489867A (en) * 2020-11-24 2021-03-12 山东无棣海丰电缆有限公司 Insulating flexible cable that tensile strength is high

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0391012A1 (en) * 1989-04-07 1990-10-10 Siemens Aktiengesellschaft Extrudable polymer blend for electric cables, and electric cable inner layer containing same
CN112489867A (en) * 2020-11-24 2021-03-12 山东无棣海丰电缆有限公司 Insulating flexible cable that tensile strength is high

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Application publication date: 20210910