CN222337944U - Low-voltage cold-resistant longitudinal water-blocking power cable - Google Patents
Low-voltage cold-resistant longitudinal water-blocking power cable Download PDFInfo
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- CN222337944U CN222337944U CN202421149736.0U CN202421149736U CN222337944U CN 222337944 U CN222337944 U CN 222337944U CN 202421149736 U CN202421149736 U CN 202421149736U CN 222337944 U CN222337944 U CN 222337944U
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- cable
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- 239000010410 layer Substances 0.000 claims abstract description 103
- 239000004020 conductor Substances 0.000 claims abstract description 13
- 239000011241 protective layer Substances 0.000 claims abstract description 13
- 229920003020 cross-linked polyethylene Polymers 0.000 claims abstract description 4
- 239000004703 cross-linked polyethylene Substances 0.000 claims abstract description 4
- 239000000463 material Substances 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 16
- -1 polypropylene Polymers 0.000 claims description 8
- 239000002131 composite material Substances 0.000 claims description 6
- 239000004698 Polyethylene Substances 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 5
- 229910052751 metal Inorganic materials 0.000 claims description 5
- 229920000573 polyethylene Polymers 0.000 claims description 5
- 229920002943 EPDM rubber Polymers 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 4
- 239000011888 foil Substances 0.000 claims description 4
- 239000000741 silica gel Substances 0.000 claims description 4
- 229910002027 silica gel Inorganic materials 0.000 claims description 4
- 229920002379 silicone rubber Polymers 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 229920002635 polyurethane Polymers 0.000 claims description 3
- 239000004814 polyurethane Substances 0.000 claims description 3
- 239000004945 silicone rubber Substances 0.000 claims description 3
- 239000011810 insulating material Substances 0.000 abstract description 7
- 230000000149 penetrating effect Effects 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 13
- 230000005540 biological transmission Effects 0.000 description 6
- 239000002253 acid Substances 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
本实用新型属于电力电缆技术领域，尤其为一种低压耐寒型纵向阻水电力电缆，包括多个导体，所述导体的外壁固定连接有第一屏蔽层，所述第一屏蔽层的外壁固定连接有第一防水层，所述第一防水层的外壁固定连接有第一绝缘层，所述第一绝缘层的外壁固定连接有第一保护层，所述第一保护层的外壁固定连接有填充层，所述填充层的外壁固定连接有阻水层。本实用新型通过采用耐寒绝缘材料交联聚乙烯，保证电缆在低温环境下仍能保持良好的柔软性和弹性，不易变硬或脆化的效果，通过纵向阻水采用阻水带有效防止水分沿电缆纵向渗入，一旦接触到水分，就能迅速吸收并膨胀，有效地阻止水分在电缆内部的传播，确保电缆内部绝缘材料不受水分侵害的效果。
The utility model belongs to the technical field of power cables, and is particularly a low-voltage cold-resistant longitudinal water-blocking power cable, comprising a plurality of conductors, wherein the outer wall of the conductor is fixedly connected with a first shielding layer, the outer wall of the first shielding layer is fixedly connected with a first waterproof layer, the outer wall of the first waterproof layer is fixedly connected with a first insulating layer, the outer wall of the first insulating layer is fixedly connected with a first protective layer, the outer wall of the first protective layer is fixedly connected with a filling layer, and the outer wall of the filling layer is fixedly connected with a water-blocking layer. The utility model adopts cold-resistant insulating material cross-linked polyethylene to ensure that the cable can still maintain good softness and elasticity in a low temperature environment, and is not easy to harden or brittle. The longitudinal water-blocking uses a water-blocking tape to effectively prevent moisture from penetrating along the longitudinal direction of the cable. Once it contacts moisture, it can quickly absorb and swell, effectively preventing the spread of moisture inside the cable, and ensuring that the insulating material inside the cable is not damaged by moisture.
Description
Technical Field
The utility model relates to the technical field of power cables, in particular to a low-voltage cold-resistant longitudinal water-blocking power cable.
Background
The low-voltage cold-resistant longitudinal water-blocking power cable is mainly suitable for occasions needing to operate in low-temperature environments, in particular to places such as severe cold rural areas, wind power stations, solar equipment, sewage treatment equipment, electronic security monitoring equipment, petroleum drilling equipment, metallurgical mineral products, field exploration equipment and the like. The design of these cables enables them to operate properly at temperatures of-40 ℃ or even lower, meeting the power transmission requirements in cold areas or in special environments.
Traditional low-voltage power cables are easy to be invaded by moisture in cold environments, so that the insulation performance of the cables is reduced, and the stability and safety of power transmission are affected.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides a low-voltage cold-resistant longitudinal water-blocking power cable, which solves the problems that the traditional low-voltage power cable is easy to be invaded by moisture in a cold environment, so that the insulation performance of the cable is reduced and the stability and the safety of power transmission are affected.
In order to achieve the above purpose, the technical scheme is that the low-voltage cold-resistant longitudinal water-blocking power cable comprises a plurality of conductors, wherein a first shielding layer is fixedly connected to the outer wall of each conductor, a first waterproof layer is fixedly connected to the outer wall of each first shielding layer, a first insulating layer is fixedly connected to the outer wall of each first waterproof layer, a first protection layer is fixedly connected to the outer wall of each first insulating layer, a filling layer is fixedly connected to the outer wall of each first protection layer, a water-blocking layer is fixedly connected to the outer wall of each filling layer, a second waterproof layer is fixedly connected to the outer wall of each water-blocking layer, a second shielding layer is fixedly connected to the outer wall of each second waterproof layer, an outer jacket layer is fixedly connected to the outer wall of each second shielding layer, and a second protection layer is fixedly connected to the outer wall of each outer jacket layer.
As a preferable embodiment of the present utility model, the conductor is made of a cylinder, and the first shielding layer is made of a metal foil.
As a preferable technical scheme of the utility model, the material of the first waterproof layer is ethylene propylene diene monomer rubber, and the material of the first insulating layer is crosslinked polyethylene.
As a preferable technical scheme of the utility model, the material of the first protective layer is silicon rubber, and the material of the filling layer is polypropylene.
As a preferable technical scheme of the utility model, the water-blocking layer is made of water-blocking tape, and the second waterproof layer is made of silica gel.
As a preferable technical scheme of the utility model, the material of the second shielding layer is a shielding composite material, and the material of the outer sheath layer is polyethylene.
As a preferable technical scheme of the utility model, the material of the second protective layer is polyurethane.
Compared with the prior art, the utility model provides a low-voltage cold-resistant longitudinal water-blocking power cable, which has the following beneficial effects:
1. According to the low-voltage cold-resistant longitudinal water-blocking power cable, the cold-resistant insulating material is used for crosslinking polyethylene, so that the cable can still keep good flexibility and elasticity in a low-temperature environment, the effect of hard hardening or embrittlement is not easy, moisture is effectively prevented from penetrating longitudinally along the cable by adopting a water blocking tape through longitudinal water blocking, once the cable is contacted with the moisture, the cable can be quickly absorbed and expanded, the moisture is effectively prevented from spreading inside the cable, the effect of preventing the insulating material inside the cable from being affected by the moisture is ensured, the cold resistance, the water resistance and other performances are ensured, meanwhile, the electrical performance of the cable is ensured to be stable, the connecting parts are compact and reliable, the potential safety hazards caused by poor connection and the like are reduced, the effect of improving the stability and the reliability of a power transmission system is achieved, the effect of resisting the environmental factors such as ultraviolet rays, oxidation, acid and the like is achieved through the design of an outer sheath layer, and the effect of reducing the maintenance cost is reduced.
Drawings
FIG. 1 is a front elevational view of the structure of the present utility model;
FIG. 2 is a schematic perspective view of the present utility model;
Fig. 3 is a structural exploded view of the present utility model.
In the figure, 1, a conductor, 2, a first shielding layer, 3, a first waterproof layer, 4, a first insulating layer, 5, a first protective layer, 6, a filling layer, 7, a waterproof layer, 8, a second waterproof layer, 9, a second shielding layer, 10, an outer sheath layer, 11 and a second protective layer.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
Referring to fig. 1-3, in this embodiment, a low-voltage cold-resistant type longitudinal water-blocking power cable comprises a plurality of conductors 1, wherein the outer wall of each conductor 1 is fixedly connected with a first shielding layer 2, the outer wall of each first shielding layer 2 is fixedly connected with a first waterproof layer 3, the outer wall of each first waterproof layer 3 is fixedly connected with a first insulating layer 4, the outer wall of each first insulating layer 4 is fixedly connected with a first protection layer 5, the outer wall of each first protection layer 5 is fixedly connected with a filling layer 6, the outer wall of each filling layer 6 is fixedly connected with a water-blocking layer 7, the outer wall of each water-blocking layer 7 is fixedly connected with a second waterproof layer 8, the outer wall of each second waterproof layer 8 is fixedly connected with a second shielding layer 9, the outer wall of each second shielding layer 9 is fixedly connected with an outer protection layer 10, and the outer wall of each outer protection layer 10 is fixedly connected with a second protection layer 11.
In this embodiment, the effect of ensuring that the cable still can keep good flexibility and elasticity in low temperature environment is achieved through the design of the first insulating layer 4, the effect of not easily hardening or embrittling is achieved through the design of the water-resistant layer 7, the moisture is effectively prevented from penetrating longitudinally along the cable, once the moisture is contacted, the moisture can be quickly absorbed and expanded, the propagation of the moisture in the cable is effectively prevented, the effect of preventing the insulating material in the cable from being affected by the moisture is ensured, the effect of ensuring cold resistance, water resistance and other performances of the cable is achieved through the design of the water-resistant layer 7 and the outer sheath layer 10, the electrical performance stability of the cable is ensured, the connecting parts are compact and reliable, the potential safety hazards caused by poor connection and the like are reduced, the effect of improving the stability and reliability of the power transmission system is achieved, the effect of resisting the environmental factors such as ultraviolet rays, oxidation, acid and alkali and the like is achieved through the design of the outer sheath layer 10, the service life of the cable is prolonged, and the maintenance cost is reduced.
Preferably, the material of the conductor 1 is copper, and the material of the first shielding layer 2 is a metal foil.
Among these, copper has good conductivity and metal foil can provide very effective shielding.
Preferably, the material of the first waterproof layer 3 is ethylene propylene diene monomer rubber, and the material of the first insulating layer 4 is crosslinked polyethylene.
The ethylene propylene diene monomer rubber has excellent water resistance, heat resistance and chemical resistance, can further prevent the conductor 1 from contacting water to influence the use, ensures that the cable can still keep good flexibility and elasticity in a low-temperature environment, is not easy to harden or embrittle, and has higher cold resistance compared with the traditional cable.
Further, the material of the first protective layer 5 is silicone rubber, and the material of the filling layer 6 is polypropylene.
The silicone rubber has high temperature resistance, good flexibility and ageing resistance, and excellent electrical insulation property.
Further, the water-blocking layer 7 is made of water-blocking tape, and the second water-blocking layer 8 is made of silica gel.
The waterproof tape is used for preventing moisture from penetrating longitudinally along the cable, once the waterproof tape contacts the moisture, the waterproof tape can be quickly absorbed and expanded, the moisture is effectively prevented from spreading inside the cable, the insulating material inside the cable is prevented from being affected by the moisture, the waterproof and insulating properties of the silica gel can be still maintained at extreme temperature, and the waterproof tape is suitable for low-temperature areas.
Preferably, the material of the second shielding layer 9 is a shielding composite material, and the material of the outer sheath layer 10 is polyethylene.
The shielding composite material comprises a composite material formed by mixing metal fibers and other nonmetallic materials, can provide good shielding effect and combines the advantages of other materials, and the polyethylene composite material has the effects of resisting the environmental factors such as ultraviolet rays, oxidation, acid and alkali, and the like, prolongs the service life of the cable and reduces the maintenance cost.
Further, the material of the second protective layer 11 is polyurethane.
The material has good elasticity, strong wear resistance and good waterproof performance, and is suitable for being used in dynamic or static water.
The cable is connected and laid, the cable can be used after the cable is laid, moisture can be effectively prevented from penetrating longitudinally along the cable through the design of the water-resistant layer 7, the cable can be quickly absorbed and expanded once the cable is contacted with the moisture, the moisture can be effectively prevented from spreading in the cable, insulating materials in the cable are prevented from being affected by the moisture, the cable can still keep good flexibility and elasticity in a low-temperature environment through the design of the first insulating layer 4, the cable is hard or embrittled, the cable has cold resistance, water resistance and other performances through the design of the water-resistant layer 7 and the outer sheath layer 10, the electrical performance of the cable is stable, the connecting parts are compact and reliable, potential hazards caused by poor connection and the like are reduced, and the stability and reliability of the power transmission system are improved.
It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present utility model, and the present utility model is not limited thereto, but may be modified or substituted for some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (7)
1. The low-voltage cold-resistant longitudinal water-blocking power cable comprises a plurality of conductors (1) and is characterized in that a first shielding layer (2) is fixedly connected to the outer wall of each conductor (1), a first waterproof layer (3) is fixedly connected to the outer wall of each first shielding layer (2), a first insulating layer (4) is fixedly connected to the outer wall of each first waterproof layer (3), a first protective layer (5) is fixedly connected to the outer wall of each first insulating layer (4), a filling layer (6) is fixedly connected to the outer wall of each first protective layer (5), a water-blocking layer (7) is fixedly connected to the outer wall of each filling layer (6), a second waterproof layer (8) is fixedly connected to the outer wall of each water-blocking layer (7), an outer jacket layer (10) is fixedly connected to the outer wall of each second shielding layer (9), and a second protective layer (11) is fixedly connected to the outer wall of each outer jacket layer (10).
2. The low-voltage cold-resistant longitudinal water-blocking power cable according to claim 1, wherein the conductor (1) is made of copper, and the first shielding layer (2) is made of metal foil.
3. The low-voltage cold-resistant longitudinal water-blocking power cable according to claim 1, wherein the first waterproof layer (3) is made of ethylene propylene diene monomer rubber, and the first insulating layer (4) is made of crosslinked polyethylene.
4. The low-voltage cold-resistant longitudinal water-blocking power cable according to claim 1, wherein the first protective layer (5) is made of silicone rubber, and the filling layer (6) is made of polypropylene.
5. The low-voltage cold-resistant longitudinal water-resistant power cable according to claim 1, wherein the water-resistant layer (7) is made of water-resistant tape, and the second water-resistant layer (8) is made of silica gel.
6. The low-voltage cold-resistant longitudinal water-blocking power cable according to claim 1, wherein the material of the second shielding layer (9) is a shielding composite material, and the material of the outer sheath layer (10) is polyethylene.
7. A low-voltage cold-resistant longitudinal water-blocking power cable according to claim 1, wherein the material of the second protective layer (11) is polyurethane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421149736.0U CN222337944U (en) | 2024-05-24 | 2024-05-24 | Low-voltage cold-resistant longitudinal water-blocking power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202421149736.0U CN222337944U (en) | 2024-05-24 | 2024-05-24 | Low-voltage cold-resistant longitudinal water-blocking power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN222337944U true CN222337944U (en) | 2025-01-10 |
Family
ID=94137935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202421149736.0U Active CN222337944U (en) | 2024-05-24 | 2024-05-24 | Low-voltage cold-resistant longitudinal water-blocking power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN222337944U (en) |
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2024
- 2024-05-24 CN CN202421149736.0U patent/CN222337944U/en active Active
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