CN203733522U - Longitudinally- and radially-waterproof power cable - Google Patents
Longitudinally- and radially-waterproof power cable Download PDFInfo
- Publication number
- CN203733522U CN203733522U CN201320724314.7U CN201320724314U CN203733522U CN 203733522 U CN203733522 U CN 203733522U CN 201320724314 U CN201320724314 U CN 201320724314U CN 203733522 U CN203733522 U CN 203733522U
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- CN
- China
- Prior art keywords
- watertight composition
- radially
- power cable
- layer
- longitudinally
- 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.)
- Expired - Fee Related
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- 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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Abstract
The utility model discloses a longitudinally- and radially-waterproof power cable. The cable comprises a cable core. The cable core is coated by a conductor shielding layer, an insulating layer, an insulating shielding layer, a metal shielding layer, a longitudinally-waterproof layer, a radially-waterproof layer, an armor layer and an outer jacket layer successively. The longitudinally-waterproof layer is formed by a water-blocking tape, and a water resisting layer is arranged between the longitudinally-waterproof layer and the metal shielding layer. The cable is largely improved in resistance to water and oil, so that the service life is lengthened.
Description
Technical field
The utility model relates to a kind of cable, is specifically related to a kind of vertical radially waterproof power cable.
Background technology
Along with industrial expansion, replacing that environment faces is also more and more at pollutant sources, cable also can face more challenge in the time laying use, oil consumption is increasing at present, cable may have at any time the erosion of oil stain in the time of operation, common cable outer jacket is easily accelerated ageing in oil stain environment, and the also dipping of normal rain of southern area, and the common employing of the high-tension cable that transmission system is used is crosslinked polyetylene insulated, crosslinked polyethylene is in the time that cable moves, if moisture immerses in crosslinked polyetylene insulated layer, can under electric field action, produce water tree.The generation of water tree, will make cable dielectric loss increase, and insulation resistance and puncture voltage decline,, the life-span of cable obviously shortens.
Utility model content
The technical problems to be solved in the utility model is: cable is easily accelerated ageing and immersed by moisture in oil stain environment, thereby a kind of radially waterproof power cable of indulging is provided.
For achieving the above object, the technical solution of the utility model is as follows:
A kind of vertical radially waterproof power cable, described power cable comprises conductor, described conductor periphery comprises conductor shield, insulating barrier, insulation screen, metal screen layer, longitudinally watertight composition, radially watertight composition, armour and outer jacket successively, it is characterized in that, described longitudinal watertight composition is made up of waterstop, between described longitudinal watertight composition and metal screen layer, is provided with water barrier.
In a preferred embodiment of the present utility model, described longitudinal watertight composition wrappedly forms by waterstop is overlapping.
In a preferred embodiment of the present utility model, described water barrier is with and is overlappingly wrappedly formed by CPP.
In a preferred embodiment of the present utility model, described outer jacket is extruded in armour periphery by thermoset plastics and forms.
In a preferred embodiment of the present utility model, described radially watertight composition by after aluminum plastic composite belt longitudinal bag bonding with thermoplasticity in protective material bond and form.
By technique scheme, the beneficial effects of the utility model are:
The utility model has improved water proofing property and the oil resistance of cable greatly, thus the useful life of having improved cable.
Brief description of the drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only embodiment more of the present utility model, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is cutaway view of the present utility model.
Embodiment
For technological means, creation characteristic that the utility model is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the utility model.
Referring to Fig. 1, the utility model provides, and a kind of vertical radially waterproof power cable is the power cable for rated voltage 6KV to 35KV, and it comprises conductor 1, conductor shield 2, insulating barrier 3, insulation screen 4, metal screen layer 5, water barrier 6, longitudinally watertight composition 7, radially watertight composition 8, armour 9 and outer jacket 10 from inside to outside successively.
Conductor 1 is two class compact conductors 1.
Conductor shield 2, it is for even conductor 1.
Insulating barrier 3, it is the insulating properties for ensureing conductor 1.
Metal screen layer 5, it is for electric field shielding.
In the utility model, longitudinally watertight composition 7 is wrappedly to form by waterstop is overlapping, and like this in the time that cable is met water, thereby waterstop is understood water-swellable and effectively be stoped water longitudinally to enter insulated wire cores.
Longitudinally the vertical bag overlap joint of watertight composition 7 is 5mm to 13mm.
Although, longitudinally watertight composition 7 is effectively to have stoped water to flow into insulated wire cores, and the longitudinal watertight composition 7 being still made up of waterstop is in the time of long-time chance water, and waterstop can be moist, can affect like this metal screen layer 5 being connected with longitudinal watertight composition 7, easily make metal screen layer 5 be oxidized.
For longitudinal watertight composition 7 is isolated with metal screen layer 5, prevent that metal screen layer 5 is oxidized, the utility model is longitudinally arranging a water barrier 6 between watertight composition 7 and metal screen layer 5.
Water barrier 6, is with and is overlappingly wrappedly formed by CPP, due to CPP band there is nonhygroscopic, resist chemical performance and isolation performance good, the moisture of longitudinal watertight composition 7 can be isolated completely like this.
By the longitudinal watertight composition 7 being made up of waterstop is matched with water barrier 6, greatly strengthen the water proofing property of cable.
The utility model, except having improved the water resistance of the longitudinal watertight composition 7 of cable, has also improved the radially water resistance of watertight composition 8 of cable simultaneously.
The radially watertight composition 8 that the utility model provides is that in and thermoplasticity rear by aluminum plastic composite belt longitudinal bag bonding, protective material bonding forms, like this, can very effectively block moisture by the radially watertight composition 8 being formed by above-mentioned material and radially penetrate in insulated wire cores from cable, thereby improve widely the radially water proofing property of watertight composition 8.
Armour 9, it is made up of nonmagnetic metal.
In order to improve the oil resistance of power cable, the outer jacket 10 that the utility model provides is made up of thermoset plastics, thereby and thermoset plastics be by being extruded in the peripheral outer jacket 10 that forms of armour.
By the outer jacket 10 of being made by thermoset plastics, there is extraordinary oil resistance and resistance to wear, effectively stop the liquid such as oil stain to penetrate into cable inside, guarantee useful life and the safe operation of cable.
More than show and described general principle of the present utility model and principal character and advantage of the present utility model.The technical staff of the industry should understand; the utility model is not restricted to the described embodiments; that in above-described embodiment and specification, describes just illustrates principle of the present utility model; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (3)
1. a vertical radially waterproof power cable, described power cable comprises conductor, described conductor periphery comprises conductor shield, insulating barrier, insulation screen, metal screen layer, longitudinally watertight composition, radially watertight composition, armour and outer jacket successively, it is characterized in that, described longitudinal watertight composition is made up of waterstop, between described longitudinal watertight composition and metal screen layer, be provided with water barrier, described water barrier is with and overlappingly wrappedly on metal screen layer, is formed by CPP, described radially watertight composition by aluminum plastic composite belt longitudinal bag bonding after with thermoplasticity in protective material bond and form.
2. the vertical radially waterproof power cable of one according to claim 1, is characterized in that, described longitudinal watertight composition wrappedly forms by waterstop is overlapping.
3. the vertical radially waterproof power cable of one according to claim 1, is characterized in that, described outer jacket is extruded in armour periphery by thermoset plastics and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320724314.7U CN203733522U (en) | 2013-11-13 | 2013-11-13 | Longitudinally- and radially-waterproof power cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320724314.7U CN203733522U (en) | 2013-11-13 | 2013-11-13 | Longitudinally- and radially-waterproof power cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203733522U true CN203733522U (en) | 2014-07-23 |
Family
ID=51203573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320724314.7U Expired - Fee Related CN203733522U (en) | 2013-11-13 | 2013-11-13 | Longitudinally- and radially-waterproof power cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203733522U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106169317A (en) * | 2016-07-22 | 2016-11-30 | 汉舟四川铜铝复合科技有限公司 | A kind of copper-aluminum composite conductor rod in equipment for power transmission and distribution |
-
2013
- 2013-11-13 CN CN201320724314.7U patent/CN203733522U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106169317A (en) * | 2016-07-22 | 2016-11-30 | 汉舟四川铜铝复合科技有限公司 | A kind of copper-aluminum composite conductor rod in equipment for power transmission and distribution |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20211113 |