CN106531289A - Water-blocking segmented conductor - Google Patents
Water-blocking segmented conductor Download PDFInfo
- Publication number
- CN106531289A CN106531289A CN201611261571.6A CN201611261571A CN106531289A CN 106531289 A CN106531289 A CN 106531289A CN 201611261571 A CN201611261571 A CN 201611261571A CN 106531289 A CN106531289 A CN 106531289A
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- CN
- China
- Prior art keywords
- conductor
- water
- blocking
- sector
- single line
- 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
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/08—Several wires or the like stranded in the form of a rope
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/02—Single bars, rods, wires, or strips
-
- 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
Abstract
The invention discloses a water-blocking segmented conductor. The center of the conductor is formed by assembling a plurality of segmented fan-shaped conductor strand blocks and a fan-shaped strand block water-blocking layer arranged out of each segmented fan-shaped conductor strand block. Water-blocking yarns are filled in a center gap after the plurality of fan-shaped strand block water-blocking layers are assembled, and a water-blocking tape is arranged out of an outer arc side. A conductor single-wire layer is twisted out of the water-blocking tape. A water-blocking layer is arranged out of the conductor single-wire layer. The cable has the advantages of reduced production technology difficulty, large compressing coefficient, high compactness, stable structure, low skin effect, high carrying capacity, good water-blocking performance, corrosion resistance and oxidation resistance.
Description
Technical field
The present invention relates to cable conductor field, specifically a kind of waterproofing type milliken conductor.
Background technology
Rapid growth and industrialization, Development of China's Urbanization along with China's economic further speeds up, to urban distribution network
Increasingly improve etc. the construction requirements of infrastructure, developed regions city requires urban central zone using ground with provincial capital one after another
Lower power cable transmits electric energy.Meanwhile, electric power is the premise of the national economic development and basis, with quick of national economy
Exhibition, electricity needs increase severely, net capacity abruptly increase, and power of motor increases, and electric power facility is towards Large Copacity（High voltage, high current, height
Frequently）Transmission direction develops.In order to improve the current-carrying capacity of cable, generally using the method for increase cross-sectional area of conductor.
The D.C. resistance of conductor is an important parameter for examining cable electrical property.But for the heavy in section of exchange transmission
Cable, due to the presence of kelvin effect, the electric current density in conductor is not to be uniformly distributed, but along cable conductor radially from table
Mian Dao centers are gradually reduced, and cause the current-carrying capacity in conductor to be not increase with cable conductor section and increase in direct ratio,
But when conductor diameter increases to a certain extent, kelvin effect is serious, cause conductor in alternating electromotive force circuit produce loss and
The effective resistance of heating is that AC resistance can be significantly greater than its D.C. resistance, and external diameter is bigger, and kelvin effect is more obvious, causes to hand over
The ratio that leakage resistance increases is also bigger, depends merely on increasing section and also just loses its practicality and economy.
In order to mitigate because the conductor AC resistance that kelvin effect causes increases to greatest extent, effectively reduce the damage of conductor
Consumption heating, increases the current-carrying capacity of conductor, people have to carry out large size conductor in a different manner division processing become by
The conductor that the independent sector of several mutually insulateds is constituted, the overall dimensions of each part are obviously reduced, to reach reduction alternating current
The purpose of resistance.Power cable with cross-linked polyethylene insulation copper core conductor is made milliken conductor often in power cable industry, is typically had
Several structures such as four segmentations, five segmentations, six segmentations and seven segmentations, split share block also has the shapes such as fan-shaped and corrugated, with five points
Cut sector element in the majority.As the sectional area of single sector element only has the one of some points of conductor total sectional area, so single
" kelvin effect " and " kindred effect " of stock block is greatly reduced, so as to reach the purpose for reducing conductor AC resistance.Such as in GB/
In T11017 and GB/Z 18890, with 800mm2As watershed：800mm2Following cable conductor presses stranded row using conventional
Array structure form；800mm2And the cable conductor of the above is using the version of the stranded arrangement of five milliken conductor strandings.This shape
Formula includes the copper core stock block of five sizes and cross sectional shape all same, by five copper core stock blocks twist stranding in certain direction,
Described five milliken conductor of big section copper core also includes the insulation wrinkle for being arranged between the copper core stock block, keeping apart each stock block
Stricture of vagina paper, and it is wrapped in the semiconductive nylon tape of the copper core stock block periphery.By big section copper core wire is broken the whole up into parts, by original
The copper core sectional uniform for coming is divided into five mutually isolated stock blocks, so as to by the unfavorable shadow of " kelvin effect " and " approach effect "
Sound is preferably minimized limit, substantially increases the transmission capacity of wire.
The mode of this sector element milliken conductor of prior art, is primarily adapted for use in middle uiform section 800-1800mm', has
Good segmentation effect.But for more heavy in section, due to the fan-shaped high and fan-shaped wide depth of penetration more than 2 times（Collection skin effect
Decay that should be due to field quantity in conductor is formed, and decay speed of the field quantity in conductor can be with saturating people's depth d table
Show）, thus segmentation effect is just no longer obvious.Meanwhile, the mode of this milliken conductor there is also many difficult problems in process of production
And drawback：One when being that sector conductor stock block section is excessive, producting process difficulty increase, moulds of industrial equipment, the characteristic requirements of equipment, and
Stability and flexural property of conductor structure etc. cannot meet requirement；Two is that power cable often wants the conductor must be using pressing
Conductor, to improve the activity coefficient of wire, reduced outside diameter reduces gap between conductor, prevents moisture from penetrating into；Make to connect between conductor
It is tightr, it is to avoid to loosen some caused problems. contact surface increase electric conductivity strengthen avoid contact with it is bad cause send out
Thermal resistance is big etc.；And sector conductor stock block is that sector is pressed, per layer of shape is different, when stock block section is excessive, the difficulty pressed
Increase.Three is that the insulating paper between sector conductor stock block can not bear deformation, during processing conductor must first pretwist molding wrap again
Paper becomes the covered wire for having pretwist, then goes into row set.Each sector conductor stock block will keep prototype, it is impossible to bear what set was reversed
Affect, will also adopt pretwist conductor.Pretwist conductor because existing pretwist lay, therefore is easy to synthesis in set shaping, but phase
To will also result in compactness not good enough.In twisted wire pretwist, necessary lay is appropriate and accurate and uniform, otherwise shapes in set
Necessarily have a unfavorable condition appearance, and loosely, displacement, displacement be also the problem that often has.Because above-mentioned reason, sector conductor stock block
Usually need to adopt metal tape after set shaping（Such as steel band, bronze band etc.）Or other bands are tightened, but this tighten
Mode, increased production cost, and surface also out-of-flatness also reduces the pliability of conductor, conductor and shielding in conductor bends
Gap is easily produced between layer, insulating properties are reduced, sheet metal strip can also cause that electric field is uneven, increase line loss.
The intrusion of moisture be often power cable destroyed, the affected main cause of service life.Moisture immerses
End of the approach mainly from the sheath and cable of cable invades cable, causes oxidation, the corrosion of conductor, so as to affect cable
Electrical property, or even there is abnormal broken line accident；Moisture penetrates into insulating barrier, and in the presence of highfield, insulating barrier can produce " water tree
Branch ", accelerates the voltage ageing of cable, causes cable breakdown accident, reduces cable service life.In order to prevent the intrusion of moisture,
Ask closely very close to each other between each structure of cable.
The content of the invention
The present invention is in order to solve problems of the prior art, there is provided a kind of producting process difficulty is reduced, and presses and is
Number is big, and compactness is big, and Stability Analysis of Structures, kelvin effect are low, and current-carrying capacity is big, block-water performance is good, corrosion-resistant, sludge proof segmentation is led
Body.
A kind of waterproofing type milliken conductor of the present invention, the conductor center is by multiple segmentation sector conductor stock set of blocks
Into, and sector element water blocking layer is externally provided with each sector conductor stock block；Center after multiple sector conductor stock set of blocks
Water blocking yarn is filled in gap, and outer arc side is externally provided with waterstop；It is stranded outside waterstop to have conductor single line layer, finally in conductor single line
Layer is outer to be provided with water blocking layer again.
Further improve, described whole set-partition sector conductor stock block is by the six single cross sectional shape all sames split
Sector conductor stock block constitute.
Further improve, described conductor single line layer is tile-type single line layer.
Further improve, the section for splitting sector conductor stock block of described set reaches 1000-2000mm2。
Compared with prior art, the beneficial effects of the present invention is：
1st, the stranded tile-type conductor single line in segmentation sector conductor stock block periphery of present invention set, inside is provided with a strand block water blocking layer, collects
The segmentation sector conductor stock block section of conjunction reaches 1000-2000mm2, the tile-type conductor single line and stock block water blocking layer of increase make conductor whole
Individual section increases, and meets the requirement of super-section.
2nd, tile-type conductor single line is a kind of self supporting structure, and Stability Analysis of Structures is very close to each other between conductor single line, without the need for tight
Pressure, you can meet；Segmentation sector conductor of the self supporting structure to internal set
Stock block tightens effect, without being tightened using other bands, Stability Analysis of Structures, will not loosely, displacement, displacement, entirely split and lead
The roundness in external week is high.
3rd, water blocking layer is designed with outside stock block conductor and round conductor, and in stock block Inside and Outside of Conductor and the gap of set
Water blocking layer is equipped with, also water blocking layer is externally provided with tile-type conductor single line so that overall conductor is protected by water blocking layer so that conductor has
There is very strong water stop function, oxidation, the corrosion of conductor will not be caused because of moisture immersion, so as to affect the electrical property of cable, very
To generation abnormal broken line accident.
4th, tile-type conductor single line is better than the circle of Z-type conductor single line, extrudes technique also simple than Z-type conductor single line.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
A kind of waterproofing type super-section milliken conductor as shown in Figure 1, the conductor center is by multiple segmentation sector conductor stocks
The set of block 1 is formed, and is externally provided with sector element water blocking layer 2 in each sector conductor stock block 1；In multiple sector conductor stock block collection
Water blocking yarn 3 is filled at center gap after conjunction, outer arc side is externally provided with waterstop 4；It is stranded outside waterstop to have tile-type conductor single line
Layer 5, finally outside conductor single line layer is provided with water blocking layer 6 again, water blocking layer is designed with outside stock block conductor and round conductor, and in stock
The gap of block Inside and Outside of Conductor and set is equipped with water blocking layer, is also externally provided with water blocking layer in tile-type conductor single line so that overall
Conductor is protected by water blocking layer so that conductor has very strong water stop function, and oxidation, the corruption of conductor will not be caused because of moisture immersion
, so as to affect the electrical property of cable, or even there is abnormal broken line accident in erosion.
Sector conductor of the described whole set-partition sector conductor stock block by the six single cross sectional shape all sames split
Stock block is constituted；The section of the segmentation sector conductor stock block of described set reaches 1000-2000mm2, increase conductor whole cross section,
Meet the requirement of super-section.
Concrete application approach of the present invention is a lot, and the above is only the preferred embodiment of the present invention, it is noted that for
For those skilled in the art, under the premise without departing from the principles of the invention, some improvement can also be made, this
A little improvement also should be regarded as protection scope of the present invention.
Claims (4)
1. a kind of waterproofing type milliken conductor, it is characterised in that：The conductor center is formed by multiple segmentation sector conductor stock set of blocks,
And sector element water blocking layer is externally provided with each sector conductor stock block；Center gap after multiple sector conductor stock set of blocks
Place's filling water blocking yarn, outer arc side is externally provided with waterstop；It is stranded outside waterstop to have conductor single line layer, finally outside conductor single line layer
Water blocking layer is provided with again.
2. waterproofing type milliken conductor according to claim 1, it is characterised in that：Described whole set-partition sector conductor
Stock block is made up of the sector conductor stock block of the single cross sectional shape all same of six segmentations.
3. waterproofing type milliken conductor according to claim 1, it is characterised in that：Described conductor single line layer is tile-type single line
Layer.
4. waterproofing type super-section milliken conductor according to claim 1, it is characterised in that：The segmentation fan of described set
The section of shape conductor stock block reaches 1000-2000mm2。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611261571.6A CN106531289A (en) | 2016-12-30 | 2016-12-30 | Water-blocking segmented conductor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611261571.6A CN106531289A (en) | 2016-12-30 | 2016-12-30 | Water-blocking segmented conductor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106531289A true CN106531289A (en) | 2017-03-22 |
Family
ID=58336260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611261571.6A Pending CN106531289A (en) | 2016-12-30 | 2016-12-30 | Water-blocking segmented conductor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106531289A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110033878A (en) * | 2017-12-13 | 2019-07-19 | 耐克森公司 | Electric conductor including solid section |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201204087Y (en) * | 2008-06-02 | 2009-03-04 | 特变电工山东鲁能泰山电缆有限公司 | Water-resistance type aluminum segmentation conductor for power cable |
| CN104361941A (en) * | 2014-11-24 | 2015-02-18 | 无锡江南电缆有限公司 | Ultra-large-section fanlike split conductor |
| CN204215731U (en) * | 2014-11-24 | 2015-03-18 | 无锡江南电缆有限公司 | Heavy in section combination milliken conductor |
-
2016
- 2016-12-30 CN CN201611261571.6A patent/CN106531289A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201204087Y (en) * | 2008-06-02 | 2009-03-04 | 特变电工山东鲁能泰山电缆有限公司 | Water-resistance type aluminum segmentation conductor for power cable |
| CN104361941A (en) * | 2014-11-24 | 2015-02-18 | 无锡江南电缆有限公司 | Ultra-large-section fanlike split conductor |
| CN204215731U (en) * | 2014-11-24 | 2015-03-18 | 无锡江南电缆有限公司 | Heavy in section combination milliken conductor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110033878A (en) * | 2017-12-13 | 2019-07-19 | 耐克森公司 | Electric conductor including solid section |
| CN110033878B (en) * | 2017-12-13 | 2021-02-12 | 耐克森公司 | Electrical conductor comprising a solid portion |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170322 |