CN106448866A - High-voltage water-blocking cable - Google Patents
High-voltage water-blocking cable Download PDFInfo
- Publication number
- CN106448866A CN106448866A CN201611071200.1A CN201611071200A CN106448866A CN 106448866 A CN106448866 A CN 106448866A CN 201611071200 A CN201611071200 A CN 201611071200A CN 106448866 A CN106448866 A CN 106448866A
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- China
- Prior art keywords
- outside
- layer
- waterstop
- single line
- line layer
- 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.)
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Classifications
-
- 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
- H01B7/285—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/22—Sheathing; Armouring; Screening; Applying other protective layers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
- H01B13/32—Filling or coating with impervious material
-
- 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
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
-
- 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
Abstract
The invention discloses a high-voltage water-blocking cable which comprises a supporting core, wherein a first shaped wire layer is arranged outside the supporting core and comprises six first single wires; first water-blocking yarns are arranged between the supporting core and the first single wire layer; a first water-blocking tape is arranged outside the first single wire layer; a second single wire layer is arranged outside the first water-blocking tape; a second shaped wire layer comprises twelve second single wires; second water-blocking yarns are arranged between the second single wire layer and the first single wire layer; a third shaped wire layer comprises eighteen third single wires; third water-blocking yarns are arranged between the third single wire layer and the second single wire layer; the third water-blocking yarns are positioned inside the second water-blocking tape; fourth water-blocking yarns are arranged in the third single wire layer; a third water-blocking tape is arranged outside the third single wire layer. The high-voltage water-blocking cable disclosed by the invention has the beneficial effects that on one hand, the water-blocking effect can be effectively improved; on the other hand, the maintenance cost is lowered, and the maintenance time is shortened. Moreover, the outage cost is effectively reduced.
Description
Technical field
The present invention relates to a kind of high pressure water repellent electric cable.
Background technology
High tension cable is worldwide widely used in recent years, and ordinary high pressure cable itself does not possess water resistance characteristic,
Level of ground water is higher or long-term area of heavy rainfull moisture is easily penetrated into sheath or invades inside cable from the breakage of sheath, and
Accidents caused.
Early in 20 century 70s, the water tree problem in power cable with cross-linked polyethylene insulation just causes international cable row
The very big concern of industry, and a lot of countries have all made substantial amounts of research work.Initially mainly consideration is carried out to crosslinked polyethylene
Modification, suppresses the generation of water tree using the method for voltage stabilizer and other additives is added, though this measure has certain effect
Not notable, fail to tackle the problem at its root.
Practical experience later is proved, it is to solve the problems, such as water tree in cross-inked polyethylene power cable to prevent external moisture from invading
Optimal path.The stop water of China's power cable is to be referred from communication cable mostly now, mainly by increasing waterproof
Sheath is to reach the purpose for preventing moisture from penetrating into insulating barrier through sheath.Blocking water comprehensively for cable to be realized, will not only consider
The moisture penetration of cable radial direction, it is contemplated that effectively prevent moisture from invading the longitudinal diffusion of cable tailing edge cable.Because if
The longitudinal water-blocking of cable is not considered, when sheath is poorly sealed or damaged, the moisture for invading inside cable can be along cable longitudinal direction
Diffusion, causes whole cable to scrap, and expands loss.
After cable water inlet, in the presence of electric field, it may occur that water-treeing phenomenon, cable breakdown is finally resulted in.Water tree is
Diameter is in the water-filled space set of 0.1m to several microns.Impurity, pore and insulation and interior outer semiconducting layer in insulation presence
The high local fields position that the uneven place of faying face is formed is the starting point that water tree occurs.Water tree generating process is typically in 8 years
More than, humidity, temperature, voltage are higher, and in water, contained ion is more, then water tree development is higher.In moisture and the common work of electric field
With under, water tree be induce high voltage power cable main cause.Since Japan runs into this phenomenon of water tree, in many documents
It is directed to this problem.After people are to the ultrapure property of material and the important function identification of the slickness of material surface,
The technology of this one side oneself achieve huge progress.It is necessary although to test for the water tree of cable and its material, but mesh
Front power cable hexyl originally possesses the ability of suppression water tree.
The structure of water repellent electric cable to be determined is first it is to be understood that harm of the moisture to cable.Generally speaking, moisture is immersed in electricity
Mainly affected after in cable is conductor and the insulation of cable.For conductor, it is steady that cable is in a heat in normal operation
Determine state, conductor temperature may result in conductor indium if there are moisture immersion so that single line in conductor typically all more than 60 DEG C
Between contact resistance increase so as to increasing conductor resistance, increased the energy loss of transmission line of electricity.For insulation, although poly-
Ethylene is extremely difficult to be dissolved in the nonpolar hydrophobic material of water, but polyethylene is a kind of half hitch being made up of crystalline phase and amorphous phase
Brilliant high polymer.Polyethylene crystallization phase structure is tight, but crystal boundary existing defects；Molecules align in amorphous phase is loose, intermolecular
There is larger gap.Hydrone is polarity, the collective effect of extension and electric field force under alternating electric field, makes hydrone very
In the grain boundary defects of the readily permeable space to polyethylene amorphous phase and crystalline phase.There is also in crosslinked polyethylene molecular structure
Problem is stated, while in crosslinked polyethylene, have more cross-linking by-products to serve as impurity, thus crosslinked polyethylene is under alternating electric field
Also there is larger water absorption rate.Water tree can be produced after crosslinked polyethylene and polyethylene insulation water suction so that operating cable occurs
Puncture and damage.
Therefore those skilled in the art are devoted to developing a kind of high tension cable that can effectively solve the problem that the problem of blocking water and block water knot
Structure.
Content of the invention
In view of the drawbacks described above of prior art, the technical problem to be solved is to provide one kind effectively to solve
The high tension cable stop water of the problem that certainly blocks water.
For achieving the above object, the invention provides a kind of high pressure water repellent electric cable, including supporting-core, is arranged on the outside of supporting-core
There is the first molded line layer, the first molded line layer includes six the first single lines, the first water blocking yarn is arranged between supporting-core and the first single line layer；
On the outside of first single line layer, the first waterstop is set；Second single line layer, the second molded line layer are set on the outside of the first waterstop
Including 12 the second single lines；Between second single line layer and the first single line layer, the second water blocking yarn is set；
The second waterstop is provided with the outside of second molded line layer, and the 3rd single line layer, the 3rd molded line are set on the outside of the second waterstop
Layer includes 18 the 3rd single lines；3rd water blocking yarn is set between the 3rd single line layer and the second single line layer, and the 3rd water blocking yarn is located at
On the inside of second waterstop；4th water blocking yarn is set in the 3rd single line layer；
The 3rd waterstop is provided with the outside of 3rd single line layer.
In order to improve block-water effect further, be provided between each two adjacent the first single line the first water blocking yarn and
Second water blocking yarn；
The 3rd water blocking yarn is provided between each the second adjacent single line；It is respectively provided between each the 3rd adjacent single line
There is the 4th water blocking yarn.
Preferably, being provided with conductor shield on the outside of the 3rd waterstop；Insulating barrier is set on the outside of conductor shield；Insulation
Layer outside arranges insulation screen；4th waterstop is set on the outside of insulation screen；Shielding layer of copper wires is set on the outside of waterstop；Copper
On the outside of silk screen layer, the 5th waterstop is set；Composite band is set on the outside of the 5th waterstop；Outer protective polyethylene is set on the outside of composite band
Layer；Semi-conductive layer is set on the outside of outer protective polyethylene layer.
Preferably, outer protective polyethylene layer is made up of metal.
A kind of manufacture method for high pressure water repellent electric cable, comprises the following steps：
1) during supporting-core and single line stranding, filling first blocks water material；
2) stranded first single line layer on the outside of supporting-core, arranges the first water blocking yarn between supporting-core and the first single line layer；
3) the first waterstop is set on the outside of the first single line layer；
4) the second single line layer is set on the outside of the first waterstop, and second is arranged between the second single line layer and the first single line layer
Water blocking yarn, and confirm that the second water blocking yarn is located on the inside of the first waterstop；
5) the 3rd single line layer is set on the outside of the second waterstop, the 3rd is arranged between the 3rd single line layer and the second single line layer
Water blocking yarn, and confirm that the 3rd water blocking yarn is located on the inside of the second waterstop；
6) the 4th water blocking yarn is set in the 3rd single line layer；
7) the 3rd waterstop is set on the outside of the 3rd single line layer；
8) conductor shield is set on the outside of the 3rd waterstop；
9) insulating barrier is set on the outside of conductor shield；
10) insulation screen is set on the outside of insulating barrier；
11) the 4th waterstop is set on the outside of insulation screen；
12) shielding layer of copper wires is set on the outside of waterstop；
13) the 5th waterstop is set on the outside of shielding layer of copper wires；
14) composite band is set on the outside of the 5th waterstop；
15) outer protective polyethylene layer is set on the outside of composite band, confirms that outer protective polyethylene layer is to be made of metal；
16) confirm to indulge no edge curl phenomenon at bag whip stitch；
17) semi-conductive layer is set on the outside of outer protective polyethylene layer.
Preferably, step 1) in, outer protective polyethylene layer is made up of metal material.
Preferably, step 2) in the first molded line layer include six the first single lines, each two adjacent first single line it
Between be provided with the first water blocking yarn；
Step 4) in, the second molded line layer includes 12 the second single lines；It is provided between each the second adjacent single line
3rd water blocking yarn；
Step 5) in, the 3rd molded line layer includes 18 the 3rd single lines；Step 6) in；Between each the 3rd adjacent single line
It is provided with the 4th water blocking yarn.
The invention has the beneficial effects as follows：One aspect of the present invention, can effectively raise block-water effect；On the other hand, save
About maintenance cost, shortens maintenance time, and another further aspect effectively reduces loss of outage.
Description of the drawings
Fig. 1 is the structural representation of the embodiment of the invention.
Fig. 2 is the concrete structure schematic diagram on the inside of conductor shield of the present invention.
Specific embodiment
The invention will be further described with reference to the accompanying drawings and examples：
As shown in Figure 1 to Figure 2, a kind of high pressure water repellent electric cable, including supporting-core 1,1 outside of supporting-core is provided with the first molded line
Layer 3, the first molded line layer 3 includes six the first single line 3a, arranges the first water blocking yarn 4 between supporting-core 1 and the first single line layer 3；
First single line layer, 3 outside arranges the first waterstop 5；First waterstop, 5 outside arranges the second single line layer 6, Second-Type
Line layer 6 includes 12 the second single line 6a；Second water blocking yarn 7 is set between second single line layer 6 and the first single line layer 3.
Second molded line layer, 6 outside is provided with the second waterstop 8, the 3rd single line layer 9 of setting on the outside of the second waterstop 8, and the 3rd
Molded line layer 9 includes 18 the 3rd single line 9a；The 3rd water blocking yarn 10 of setting between 3rd single line layer 9 and the second single line layer 6, the 3rd
Water blocking yarn 10 is located at 8 inner side of the second waterstop；4th water blocking yarn 11 is set in the 3rd single line layer 9.3rd single line layer, 9 outside is arranged
There is the 3rd waterstop 12.
In the present embodiment, the first water blocking yarn 4 and second is provided between each two adjacent the first single line 3a and blocks water
Yarn 7；The 3rd water blocking yarn 10 is provided between each the second adjacent single line 6a；It is all provided between each the 3rd adjacent single line 9a
It is equipped with the 4th water blocking yarn 11.
In the present embodiment, 12 outside of the 3rd waterstop is provided with conductor shield 13；13 outside of conductor shield arranges exhausted
Edge layer 14；14 outside of insulating barrier arranges insulation screen 15；15 outside of insulation screen arranges the 4th waterstop 16；Waterstop 16
Outside arranges shielding layer of copper wires 17；17 outside of shielding layer of copper wires arranges the 5th waterstop 18；5th waterstop, 18 outside arranges multiple
Crossed belt 19；19 outside of composite band arranges outer protective polyethylene layer 20；In the present embodiment, outer protective polyethylene layer 20 is made up of metal.Poly-
20 outside of ethylene outer jacket arranges semi-conductive layer 21.
A kind of manufacture method for high pressure water repellent electric cable, comprises the following steps：
1) during supporting-core 1 and 2 stranding of single line, filling first blocks water material；
2) in the stranded first single line layer 3 in 1 outside of supporting-core, first is arranged between supporting-core 1 and the first single line layer 3 and is blocked water
Yarn 4；
3) the first waterstop 5 is set in 3 outside of the first single line layer；
4) the second single line layer 6 is set in 5 outside of the first waterstop, arranges between the second single line layer 6 and the first single line layer 3
Second water blocking yarn 7, and confirm that the second water blocking yarn 7 is located at 5 inner side of the first waterstop；
5) the 3rd single line layer 9 is set in 8 outside of the second waterstop, arranges between the 3rd single line layer 9 and the second single line layer 6
3rd water blocking yarn 10, and confirm that the 3rd water blocking yarn 10 is located at 8 inner side of the second waterstop；
6) the 4th water blocking yarn 11 is set in the 3rd single line layer 9；
7) the 3rd waterstop 12 is set in 9 outside of the 3rd single line layer；
8) conductor shield 13 is set in 12 outside of the 3rd waterstop；
9) insulating barrier 14 is set in 13 outside of conductor shield；
10) insulation screen 15 is set in 14 outside of insulating barrier；
11) the 4th waterstop 16 is set in 15 outside of insulation screen；
12) shielding layer of copper wires 17 is set in 16 outside of waterstop；
13) the 5th waterstop 18 is set in 17 outside of shielding layer of copper wires；
14) composite band 19 is set in 18 outside of the 5th waterstop；
15) outer protective polyethylene layer 20 is set in 19 outside of composite band, confirms that outer protective polyethylene layer 20 is to be made of metal；
16) confirm to indulge no edge curl phenomenon at bag whip stitch；
17) semi-conductive layer 21 is set in 20 outside of outer protective polyethylene layer.
In the present embodiment method, step 1) in, outer protective polyethylene layer 20 is made up of metal material.
Step 2) in the first molded line layer 3 include six the first single line 3a, between each two adjacent the first single line 3a all
It is provided with the first water blocking yarn 4；
Step 4) in, the second molded line layer 6 includes 12 the second single line 6a；It is all provided between each the second adjacent single line 6a
It is equipped with the 3rd water blocking yarn 10；
Step 5) in, the 3rd molded line layer 9 includes 18 the 3rd single line 9a；In step 6；Each the 3rd adjacent single line 9a
Between be provided with the 4th water blocking yarn 11.
In the present invention, aluminum-polyethylene composite belt longitudinal bag be critical process, should ensure that its overlap joint surplus appropriate and also with interior shield
Set tight bond, will accomplish tight and rounding, not produce edge-curl phenomenon at vertical bag whip stitch.
The preferred embodiment of the present invention described in detail above.It should be appreciated that one of ordinary skill in the art is no
Need creative work just can make many modifications and variations according to the design of the present invention.Therefore, all technology in the art
Personnel are available by logical analysis, reasoning, or a limited experiment on the basis of existing technology under this invention's idea
Technical scheme, all should be in the protection domain being defined in the patent claims.
Claims (7)
1. a kind of high pressure water repellent electric cable, is characterized in that：Including supporting-core (1), on the outside of supporting-core (1), the first molded line is provided with
Layer (3), described first molded line layer (3) include six the first single lines (3a), supporting-core (1) and the first single line layer (3)
Between the first water blocking yarn (4) is set；
First waterstop (5) is set on the outside of the first single line layer (3)；On the outside of first waterstop (5), the second single line is set
Layer (6), described second molded line layer (6) include 12 the second single lines (6a)；Second single line layer (6) and first single line
Between layer (3), the second water blocking yarn (7) is set；
The second waterstop (8) is provided with the outside of second molded line layer (6), arranges the 3rd single on the outside of the second waterstop (8)
Line layer (9), the 3rd molded line layer (9) includes 18 the 3rd single lines (9a)；The 3rd single line layer (9) and the second single line layer
(6) the 3rd water blocking yarn (10) is set between, and the 3rd water blocking yarn (10) is located on the inside of the second waterstop (8)；Described 3rd is single
4th water blocking yarn (11) is set in line layer (9)；
The 3rd waterstop (12) is provided with the outside of the 3rd single line layer (9).
2. high pressure water repellent electric cable as claimed in claim 1, is characterized in that：Between each two adjacent the first single line (3a) all
It is provided with the first water blocking yarn (4) and the second water blocking yarn (7)；
The 3rd water blocking yarn (10) is provided between each adjacent second single line (6a) described；Each the 3rd adjacent list described
The 4th water blocking yarn (11) is provided between line (9a).
3. high pressure water repellent electric cable as claimed in claim 1, is characterized in that：Conductor is provided with the outside of 3rd waterstop (12)
Screen layer (13)；Insulating barrier (14) is set on the outside of conductor shield (13)；Insulation screen is set on the outside of insulating barrier (14)
Cover layer (15)；4th waterstop (16) is set on the outside of insulation screen (15)；Copper wire is set on the outside of waterstop (16)
Screen layer (17)；5th waterstop (18) is set on the outside of shielding layer of copper wires (17)；Set on the outside of 5th waterstop (18)
Put composite band (19)；Outer protective polyethylene layer (20) is set on the outside of composite band (19)；On the outside of outer protective polyethylene layer (20)
Semi-conductive layer (21) is set.
4. high pressure water repellent electric cable as claimed in claim 3, is characterized in that：Outer protective polyethylene layer (20) are made up of metal.
5. a kind of manufacture method for high pressure water repellent electric cable, is characterized in that：Comprise the following steps：
1) during supporting-core (1) and single line (2) stranding, filling first blocks water material；
2) on the outside of the supporting-core (1) stranded first single line layer (3), first is arranged between supporting-core (1) and the first single line layer (3)
Water blocking yarn (4)；
3) the first waterstop (5) is set on the outside of the first single line layer (3)；
4) the second single line layer (6) is set on the outside of the first waterstop (5), between the second single line layer (6) and the first single line layer (3)
Second water blocking yarn (7) is set, and confirms that the second water blocking yarn (7) is located on the inside of the first waterstop (5)；
5) the 3rd single line layer (9) is set on the outside of the second waterstop (8), between the 3rd single line layer (9) and the second single line layer (6)
3rd water blocking yarn (10) is set, and confirms that the 3rd water blocking yarn (10) is located on the inside of the second waterstop (8)；
6) the 4th water blocking yarn (11) is set in the 3rd single line layer (9)；
7) the 3rd waterstop (12) is set on the outside of the 3rd single line layer (9)；
8) conductor shield (13) is set on the outside of the 3rd waterstop (12)；
9) insulating barrier (14) is set on the outside of conductor shield (13)；
10) insulation screen (15) is set on the outside of insulating barrier (14)；
11) the 4th waterstop (16) is set on the outside of insulation screen (15)；
12) shielding layer of copper wires (17) is set on the outside of waterstop (16)；
13) the 5th waterstop (18) is set on the outside of shielding layer of copper wires (17)；
14) composite band (19) is set on the outside of the 5th waterstop (18)；
15) outer protective polyethylene layer (20) is set on the outside of composite band (19), confirms that outer protective polyethylene layer (20) is to be made of metal；
16) confirm to indulge no edge curl phenomenon at bag whip stitch；
17) semi-conductive layer (21) is set on the outside of outer protective polyethylene layer (20).
6. the manufacture method for being used for high pressure water repellent electric cable as claimed in claim 5, is characterized in that：The step 1) in, poly- second
Alkene outer jacket (20) is made up of metal material.
7. the manufacture method for being used for high pressure water repellent electric cable as claimed in claim 5, is characterized in that：The step 2) in the first type
Line layer (3) includes six the first single lines (3a), is provided with the first water blocking yarn between each two adjacent the first single line (3a)
(4)；
The step 4) in, the second molded line layer (6) includes 12 the second single lines (6a)；Each adjacent second single line (6a) it
Between be provided with the 3rd water blocking yarn (10)；
The step 5) in, the 3rd molded line layer (9) includes 18 the 3rd single lines (9a)；The step 6) in；Each is adjacent
The 4th water blocking yarn (11) is provided between 3rd single line (9a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611071200.1A CN106448866A (en) | 2016-11-29 | 2016-11-29 | High-voltage water-blocking cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611071200.1A CN106448866A (en) | 2016-11-29 | 2016-11-29 | High-voltage water-blocking cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106448866A true CN106448866A (en) | 2017-02-22 |
Family
ID=58219744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611071200.1A Pending CN106448866A (en) | 2016-11-29 | 2016-11-29 | High-voltage water-blocking cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106448866A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070240893A1 (en) * | 2006-04-10 | 2007-10-18 | Bremnes Jarle J | Power cable for direct electric heating system |
| CN201698787U (en) * | 2010-04-21 | 2011-01-05 | 无锡市长城电线电缆有限公司 | Middle-high voltage power cable water blocking conductor |
| CN102280195A (en) * | 2011-05-23 | 2011-12-14 | 江苏亨通高压电缆有限公司 | High voltage and supervoltage cross-linked polyethylene insulating submarine power cable with single core |
| CN104882231A (en) * | 2015-05-22 | 2015-09-02 | 江苏亨通电力电缆有限公司 | Technology for achieving longitudinal water blocking of round conductor in middle and high voltage cable |
| CN204695841U (en) * | 2015-05-05 | 2015-10-07 | 重庆泰山电缆有限公司 | High-efficiency compact cable |
| CN104975246A (en) * | 2015-05-15 | 2015-10-14 | 重庆泰山电缆有限公司 | Method for manufacturing high-conductivity flexible aluminum type wire |
| CN205451900U (en) * | 2016-02-29 | 2016-08-10 | 远东电缆有限公司 | Wisdom energy is with overhead insulated cable that blocks water |
-
2016
- 2016-11-29 CN CN201611071200.1A patent/CN106448866A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070240893A1 (en) * | 2006-04-10 | 2007-10-18 | Bremnes Jarle J | Power cable for direct electric heating system |
| CN201698787U (en) * | 2010-04-21 | 2011-01-05 | 无锡市长城电线电缆有限公司 | Middle-high voltage power cable water blocking conductor |
| CN102280195A (en) * | 2011-05-23 | 2011-12-14 | 江苏亨通高压电缆有限公司 | High voltage and supervoltage cross-linked polyethylene insulating submarine power cable with single core |
| CN204695841U (en) * | 2015-05-05 | 2015-10-07 | 重庆泰山电缆有限公司 | High-efficiency compact cable |
| CN104975246A (en) * | 2015-05-15 | 2015-10-14 | 重庆泰山电缆有限公司 | Method for manufacturing high-conductivity flexible aluminum type wire |
| CN104882231A (en) * | 2015-05-22 | 2015-09-02 | 江苏亨通电力电缆有限公司 | Technology for achieving longitudinal water blocking of round conductor in middle and high voltage cable |
| CN205451900U (en) * | 2016-02-29 | 2016-08-10 | 远东电缆有限公司 | Wisdom energy is with overhead insulated cable that blocks water |
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Application publication date: 20170222 |
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