CN106531339A - Split conductor of waterproof built-in optical fiber - Google Patents
Split conductor of waterproof built-in optical fiber Download PDFInfo
- Publication number
- CN106531339A CN106531339A CN201611263877.5A CN201611263877A CN106531339A CN 106531339 A CN106531339 A CN 106531339A CN 201611263877 A CN201611263877 A CN 201611263877A CN 106531339 A CN106531339 A CN 106531339A
- Authority
- CN
- China
- Prior art keywords
- conductor
- water
- fan
- blocking
- silk thread
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/005—Power cables including optical transmission elements
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4401—Optical cables
- G02B6/4429—Means specially adapted for strengthening or protecting the cables
- G02B6/44384—Means specially adapted for strengthening or protecting the cables the means comprising water blocking or hydrophobic materials
-
- 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
- H01B7/285—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
- 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
- H01B7/288—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable by completely or partially filling interstices in the cable using hygroscopic material or material swelling in the presence of liquid
-
- 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
- H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
Abstract
The invention discloses a split conductor of a waterproof built-in optical fiber. The conductor is formed by gathering a plurality of split fan-shaped conductor strand blocks, and a fan-shaped strand block water-blocking layer is arranged on each fan-shaped conductor strand block; a central gap after the fan-shaped conductor strand blocks are gathered is filled with water-blocking threads, and a water-blocking belt is arranged outside an outer arc edge; five silk thread bundles with optical fiber units in a direct towing manner are arranged between fan-shaped angles of the fan-shaped strand blocks; and gaps among the fan-shaped strand block water-blocking layers, the water-blocking belt and the silk thread bundles are filled with water-blocking blocks. According to the split conductor, the conductor is integrally protected by the water-blocking layers, so that the conductor has extremely high water-blocking function, and the influence on the electric performance of the cable or even the occurrence of abnormal line-breaking accidents cannot be caused by oxidization and corrosion of the conductor due to water penetration.
Description
Technical field
The present invention relates to cable conductor field, specifically a kind of milliken conductor of water proof type built-in fiber.
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 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 appearance and size of each part is 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
Line 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 prior art sector element milliken conductor, will fully take into account stranding when designing in structure and casted die mould
Rear outward appearance rounding and the electrical property of conductor are it is necessary to two angles for ensureing sector, fan-shaped central angle（Drift angle）It is sharper, then into
After cable each two secter pat junction cross get over it is smooth, without obvious recessed joint, outward appearance rounding, center tight.But the sharper processing in angle
Difficulty is bigger, can cause the rough of conductive surface, easily cause the concentration of internal field, cause in being excessively sharp process
Point discharge.
With the substantial increase of China's super-pressure and the high voltage power cable amount of laying, the operation safety of power cable and quality
Monitoring is more and more important, needs using distribution type fiber-optic measuring system（DTS）Enter trip temperature, transmission load monitor in real time, to super
High pressure and high voltage power cable realize that internal or external extraordinary temperature measuring optical cable becomes optical fiber composite high-voltage cable, i.e., so-called " intelligence
Energy cable ".Meanwhile, " integration of three networks " has been included the Pilot project construction of intelligent grid for Utilities Electric Co., and national grid is pushed in the whole nation
Power optical fiber is registered one's residence, it is desirable to realize electrical network end electric power and communication " integration " power optical fiber to family photoelectric compound cable.
As the processing of sector element milliken conductor needs the set through single line process, pretwist, stock block stranded etc., process
In can produce larger twisting resistance, tensile force, particularly milliken conductor section is larger, the twisting resistance of generation, tensile force etc.
Bigger, in this milliken conductor, built-in fiber is easily twisted off or is broken, and is not had temperature, is transmitted load monitor in real time
Effect.There are the structure that stainless steel tube or other metal tubes are set outside optical fiber, such as Chinese patent in prior art
CN201220468863.8 discloses a kind of detectable cable of running status, and optical fiber is used for transmission signal, and stainless steel tube is coated on
Outside optical fiber, stainless steel tube is stranded in cable conductor center.This structure stainless steel tube thickness is bigger, external diameter is bigger, the sky of needs
Between also bigger, the central angle of sector element（Drift angle）Also it is bigger, difficulty of processing increase, between stainless steel tube and sector element between
Gap is also bigger；Stainless steel tube external diameter is too small, and the diameter of its steel pipe also will necessarily be little, and the twisting resistance that can bear, tensile force are also still
It is so less, can be flattened, break optical fiber, or twist off, break optical fiber；Other structure described in the patent is only applicable to center and puts
The structure of optical fiber is put, also simply common mesolow, small bore cable, limit answering in heavy in section fan-segmentation conductor
With.Meanwhile, stainless steel tube or other metal tubes 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 outward appearance rounding, optical fiber are not easy to be drawn
Disconnected, can be used for super-pressure and high voltage power cable, can be low to temperature, transmission load monitor in real time, kelvin effect, current-carrying
Amount is big, block-water performance is good, corrosion-resistant, the milliken conductor of sludge proof built-in fiber.
A kind of milliken conductor of water proof type built-in fiber of the present invention, the conductor is by multiple segmentation sector conductor stock blocks
Set is formed, and is externally provided with sector element water blocking layer in each sector conductor stock block；After multiple sector conductor stock set of blocks
Center gap at fill water blocking yarn, outer arc side is externally provided with waterstop；It is provided between the segment angle of described sector element water blocking layer
Five centers directly tow the silk thread beam of fiber unit；Gap between sector element water blocking layer, waterstop and silk thread beam
Fill the block that blocks water.
Further improve, described fiber unit is one or more.
Further improve, when described fiber unit is many, silk thread is provided between optical fiber and is isolated.
Further improve, described silk thread is waterproofing rope or water blocking yarn, protects optical fiber not broken by the intrusion of moisture
It is bad.
Compared with prior art, the beneficial effects of the present invention is：
1st, fiber unit is provided between segmentation sector conductor stock block segment angle of the present invention, can carry out temperature to power cable
Degree, transmission load monitor in real time, make big cutting in can be used in " integration of three networks ", " intelligent cable " super-pressure and high voltage power cable
Face conductor；Silk thread beam surrounds the fiber unit for directly dragging, and optical fiber will not be pulled off, and silk thread beam has been also carried out effective guarantor to fiber unit
Shield, will not be extruded when processing, laying, and particularly when cable runs, certainly will will generate heat and expand, it is ensured that have space
Optical fiber is accommodated, inside of the elastic material again to expanding provides the space of buffering, it is ensured that optical fiber will not be damaged, can be normal
Operation.Using waterproofing rope or water blocking yarn, it is fashionable to run into entering for moisture, promptly can expand, and absorbs moisture, plays the work for blocking water
With.Segmentation sector conductor stock block shape angle is provided with silk thread beam, and in process, the segment angle of sector element need not be processed very
Point, you can rounding will be filled between sector, reduce the difficulty of processing of sector element.The outer no stainless steel tube of optical fiber, electric field
Uniformly, line loss will not be increased.
2nd, water blocking layer is equipped with the gap of stock block Inside and Outside of Conductor and set, in sector element water blocking layer, waterstop
And the gap filling water blocking yarn between silk thread beam so that overall conductor is protected by water blocking layer so that conductor has very strong
Water stop function, will not cause oxidation, the corrosion of conductor, so as to affect the electrical property of cable, or even occur different because of moisture immersion
Normal line-outage contingency.
3rd, make the gap filling water blocking yarn between sector element water blocking layer, waterstop and silk thread beam into filling resistance
Water block, not only acts as the effect for blocking water, moreover it is possible to play the effect of more preferably fixed optical fiber, not easily shifted.
Description of the drawings
Fig. 1 is schematic structural view of the invention；
Fig. 2 is structural representation of the silk thread beam inner fiber unit of present invention when being many.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
A kind of milliken conductor of water proof type built-in fiber as shown in Figure 1, the conductor is by multiple segmentation sector conductor stock blocks 1
Set is formed, and is externally provided with sector element water blocking layer 2 in each sector conductor stock block；After multiple sector conductor stock set of blocks
Center gap at fill water blocking yarn 3, outer arc side is externally provided with waterstop 4；Set between the segment angle of described sector element water blocking layer
There are five silk thread beams 6 for directly towing fiber unit 5；Gap between sector element water blocking layer, waterstop and silk thread beam
Fill the block 10 that blocks water.
As shown in Fig. 2 the fiber unit 7 in described silk thread beam 8 is 2, the space between fiber unit passes through silk thread 9
Filling, the silk thread are waterproofing rope or water blocking yarn.
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 milliken conductor of water proof type built-in fiber, it is characterised in that：The conductor is by multiple segmentation sector conductor stock block collection
Conjunction is formed, and is externally provided with sector element water blocking layer in each sector conductor stock block；After multiple sector conductor stock set of blocks
Water blocking yarn is filled at center gap, outer arc side is externally provided with waterstop；Five are provided between the segment angle of described sector element water blocking layer
Root directly tows the silk thread beam of fiber unit；Gap filling resistance between sector element water blocking layer, waterstop and silk thread beam
Water block.
2. the milliken conductor of water proof type built-in fiber according to claim 1, it is characterised in that：Described fiber unit is
One or more.
3. the milliken conductor of water proof type built-in fiber according to claim 1, it is characterised in that：Described fiber unit is
When many, silk thread is provided between optical fiber and is isolated.
4. the milliken conductor of water proof type built-in fiber according to claim 3, it is characterised in that：Described silk thread is to block water
Rope or water blocking yarn.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611263877.5A CN106531339A (en) | 2016-12-30 | 2016-12-30 | Split conductor of waterproof built-in optical fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611263877.5A CN106531339A (en) | 2016-12-30 | 2016-12-30 | Split conductor of waterproof built-in optical fiber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106531339A true CN106531339A (en) | 2017-03-22 |
Family
ID=58336129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611263877.5A Pending CN106531339A (en) | 2016-12-30 | 2016-12-30 | Split conductor of waterproof built-in optical fiber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106531339A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111446033A (en) * | 2020-05-14 | 2020-07-24 | 国网湖北省电力有限公司十堰供电公司 | Composite optical cable for power communication |
Citations (4)
| 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 |
| CN201667246U (en) * | 2009-11-05 | 2010-12-08 | 杭州华新电力线缆有限公司 | Power cable of water-repellent split conductor |
| CN104332241A (en) * | 2014-11-24 | 2015-02-04 | 无锡江南电缆有限公司 | Combined split conductor |
| CN104409154A (en) * | 2014-11-24 | 2015-03-11 | 无锡江南电缆有限公司 | Round split conductor with internal optical fibers |
-
2016
- 2016-12-30 CN CN201611263877.5A patent/CN106531339A/en active Pending
Patent Citations (4)
| 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 |
| CN201667246U (en) * | 2009-11-05 | 2010-12-08 | 杭州华新电力线缆有限公司 | Power cable of water-repellent split conductor |
| CN104332241A (en) * | 2014-11-24 | 2015-02-04 | 无锡江南电缆有限公司 | Combined split conductor |
| CN104409154A (en) * | 2014-11-24 | 2015-03-11 | 无锡江南电缆有限公司 | Round split conductor with internal optical fibers |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111446033A (en) * | 2020-05-14 | 2020-07-24 | 国网湖北省电力有限公司十堰供电公司 | Composite optical cable for power communication |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170322 |
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| WD01 | Invention patent application deemed withdrawn after publication |