CN106782856A - Times capacity midium voltage cable - Google Patents
Times capacity midium voltage cable Download PDFInfo
- Publication number
- CN106782856A CN106782856A CN201611223365.6A CN201611223365A CN106782856A CN 106782856 A CN106782856 A CN 106782856A CN 201611223365 A CN201611223365 A CN 201611223365A CN 106782856 A CN106782856 A CN 106782856A
- Authority
- CN
- China
- Prior art keywords
- voltage cable
- capacity
- midium voltage
- layer
- lock tube
- 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
Links
- 239000004020 conductor Substances 0.000 claims abstract description 24
- 230000004888 barrier function Effects 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000010959 steel Substances 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims abstract description 3
- 239000000779 smoke Substances 0.000 claims description 8
- 238000009413 insulation Methods 0.000 claims description 7
- 229920000098 polyolefin Polymers 0.000 claims description 7
- 239000003365 glass fiber Substances 0.000 claims description 6
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 3
- 239000008397 galvanized steel Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 claims 1
- 239000003063 flame retardant Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 229910052736 halogen Inorganic materials 0.000 description 4
- 150000002367 halogens Chemical class 0.000 description 4
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
-
- 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
- H01B7/29—Protection against damage caused by extremes of temperature or by flame
- H01B7/295—Protection against damage caused by extremes of temperature or by flame using material resistant to flame
Landscapes
- Insulated Conductors (AREA)
Abstract
The present invention relates to capacity midium voltage cable again, the midium voltage cable includes the mutual lock tube of inner support (1) and the successively wrapped conductive insulated wire cores peripheral in the mutual lock tube of inner support (1), sheath (10), armor (11) and outer jacket (12)；The mutual lock tube of inner support (1) is aluminum or steel interlocking sleeve pipe；The conductive insulated wire cores include wire, conductor shield (4) and insulating barrier (5) successively from the inside to the outside.Of the invention times of capacity midium voltage cable, under the conditions of peer, by increasing capacitance it is possible to increase 20% 30% current-carrying capacities；In the case of with section, 10% 20% conductors can be saved；And with fire-retardant and environmental-protecting performance.
Description
Technical field
The invention belongs to field of cables, and in particular to a kind of times capacity midium voltage cable, it is adaptable to big or middle, short distance and its
Its important public place transmission of electricity.
Background technology
Midium voltage cable, its rated voltage 6-35KV, is mainly used in electrical power system transmission and distribution electric energy fixes laying-out,
Used in densely populated electrified subway, station, port and pier, sports center square, skyscraper, clearinghouse computer,
The important social public arena such as the megastore of modernization.It has a series of advantage, such as：Excellent electric property and machinery
Physical property；Excellent low smoke and zero halogen A class anti-flammabilitys；Few with smoke amount, halogen acid gas burst size small fire spreads and is harmful to
Murder by poisoning of the gas to people and biology.
Conventional midium voltage cable especially heavy in section midium voltage cable, theoretical according to kelvin effect, electric current becomes in the conductor
Flowed in surface, and it is smaller closer to central current, then comparatively, that is conductor has part not play rational profit
With, cause the part of copper material to waste, times capacity midium voltage cable of the design is namely based on this theory, using design in practice
Into, and foreign countries have research institution also carrying out the research and development of such product, but are mostly functionally to consider, such as realize heating,
The aspects such as shield effectiveness are improved, without from the current-carrying capacity for how improving product, saving from the aspect of copper material etc..
The content of the invention
For defect present in prior art, the present invention provides a kind of times capacity midium voltage cable, under the conditions of peer, increases
Strong current-carrying capacity of cable, reduces conductor usage amount.
To achieve the above objectives, the technical solution adopted by the present invention is：A kind of times capacity midium voltage cable, including interior branch are provided
Support mutual lock tube and the successively wrapped conductive insulated wire cores peripheral in the mutual lock tube of inner support, sheath, armor and outer jacket；It is described
The mutual lock tube of inner support is aluminum or steel interlocking sleeve pipe.
Further, times capacity midium voltage cable as described above, the conductive insulated wire cores include leading from the inside to the outside successively
Line, conductor shield, insulating barrier, insulation screen and metal screen layer.
Further, times capacity midium voltage cable as described above, the wire is double-decker, including S types or Z-type internal layer
Wire and trapezoidal outer layer conductor.
Further, times capacity midium voltage cable as described above, the conductor shield and insulation screen are and partly lead
The screen layer of electricity.
Further, times capacity midium voltage cable as described above, the insulating barrier is crosslinked polyetylene insulated layer.
Further, times capacity midium voltage cable as described above, the conductive insulated wire cores periphery passes through glass fiber tape
Lapping layer is wrapped.
Further, times capacity midium voltage cable as described above, forms between the lapping layer and conductive insulated wire cores
Gap, is filled by glass cord packed layer.
Further, times capacity midium voltage cable as described above, the sheath is low-smoke halogen-free polyolefin sheath.
Further, times capacity midium voltage cable as described above, the armor is galvanized steel strip armor.
Further, times capacity midium voltage cable as described above, the outer jacket is the fire-retardant outer shield of low-smoke halogen-free polyolefin
Layer.
Advantageous Effects of the invention are：
(1) it is of the invention by setting the mutual lock tube of inner support in conductive insulated wire cores, so as in same specification, the feelings with effect
Under condition, the current-carrying capacity of cable improves 20%-30%, and conductor usage amount saves 10%-20%；
(2) wire uses double-decker, and its internal layer is trapezoidal for S types or Z-type, outer layer, on the one hand in reduction process
The extruding of the mutual lock tube of pair of interior support, on the other hand increases it and presses coefficient, it is combined more closely, improves conductor utilization；
(3) packed layer and lapping layer use glass fiber layer, make it have fire resistance；
(4) outer jacket uses polyolefin flame-retardant restrictive coating, in addition to fire resistance, because being free of halogens, in hair
Suffocative flue gas will not be produced during calamity of lighting a fire, secondary injury is not resulted in.
Brief description of the drawings
Fig. 1 is the structural representation of times capacity midium voltage cable of the invention.
In figure：
The outer layer conductor 4- conductor shields of the mutual lock tube 2- inner conductors 3- of 1- inner supports
5- insulating barrier 6- insulation screen 7- metal screen layer 8- packed layer 9- lapping layers
10- sheath 11- armor 12- outer jackets
Specific embodiment
Below in conjunction with the accompanying drawings, specific embodiment of the invention is described in further detail.
As shown in figure 1, being times capacity midium voltage cable that the present invention is provided, it includes the mutual lock tube 1 of inner support and sets gradually
Conductive insulated wire cores, sheath 10, armor 11 and outer jacket 12 in the mutual periphery of lock tube 1 of inner support.
The mutual lock tube 1 of inner support is aluminum or steel interlocking sleeve pipe, is solid structure so as to change conductive insulated wire cores,
The usage amount of conductor has been saved, the current-carrying capacity of cable has been improve.Its inner chamber, the size of external diameter, by kelvin effect theoretical calculation.
Temperature sensing optical fiber, the measurement signal line etc. of being precoated in the mutual lock tube 1 of inner support monitoring circuit, preferably to realize the intellectuality of power network.
The mutual lock tube 1 of inner support can be made using interlocking armoring machine.
Conductive insulated wire cores 1 include wire, conductor shield 4, insulating barrier 5, insulation screen 6 and gold successively from the inside to the outside
Category screen layer 7.
Wire is layer conductor 3 outside double-decker, including S types or Z-type inner conductor 2 and ladder type.On the one hand reduce processed
The extruding of the mutual lock tube of pair of interior support in journey, on the other hand increases it and presses coefficient, it is combined more closely, improves conductor and utilizes
Rate.
Conductor shield 4 is semiconductive screen layer, is uniformly covered on conductive surface, plays a part of to be homogenized electric field；
Insulating barrier 5 is crosslinked polyetylene insulated layer, and heat-resisting good, load capacity is strong, non-fusible, resistant to chemical etching, high mechanical strength；Insulation
Screen layer 6 is semiconductive screen layer, has good contact with the insulating barrier for being shielded, so as to avoid insulating barrier and screen layer it
Between there is gap discharge；Metal screen layer 7 is copper strip shielding layer, and copper belt screen layer is used using electrician.
Cable of the invention carries out twisted synthesizing cable using three insulated wire cores, and three peripheries of insulated wire cores pass through lapping layer
9 are tightened, and the gap formed between the lapping layer 9 and conductive insulated wire cores is filled by packed layer 8.Packed layer 8 uses glass fibers
Dimension rope packed layer, lapping layer 9 is glass fiber tape lapping layer.Because glass fibre has, good insulating, heat resistance be strong, corrosion resistance
The advantage of good and high mechanical strength.
Sheath 10 uses low-smoke halogen-free polyolefin sheath, with anti-flammability, make cable under the conditions of having external flame
Flame retardant effect can preferably be played.
Armor 11 is hot-galvanized steel band armor, makes the resistance to external shocks performance of cable more superior.
Outer jacket 12 is low-smoke halogen-free polyolefin flame retardant sheath layer, in addition to fire resistance, because being free of halogens,
Suffocative flue gas will not be produced when there is fire, secondary injury is not resulted in.
To sum up, the present invention provide times capacity midium voltage cable, realize same specification, with effect in the case of, the current-carrying of cable
Amount lifting 20%-30%, conductor usage amount saves 10%-20%, so as to save cost.In combination with going out for intelligent grid
Existing, in the mutual lock tube of inner support, the monitoring circuit such as temperature sensing optical fiber of precoating, measurement signal line preferably realizes the intelligence of power network
Change.
Of the invention times of capacity midium voltage cable is not limited to above-mentioned specific embodiment, and those skilled in the art are according to this hair
Bright technical scheme draws other implementation methods, also belongs to technological innovation scope of the invention.
Claims (10)
1. a kind of times capacity midium voltage cable, it is characterized in that：It is including the mutual lock tube of inner support (1) and wrapped in the mutual lock tube of inner support successively
(1) peripheral conductive insulated wire cores, sheath (10), armor (11) and outer jacket (12)；The mutual lock tube of inner support (1) is
Aluminum or steel interlocking sleeve pipe.
2. as claimed in claim 1 times of capacity midium voltage cable, it is characterized in that：The conductive insulated wire cores are wrapped successively from the inside to the outside
Include wire, conductor shield (4), insulating barrier (5), insulation screen (6) and metal screen layer (7).
3. as claimed in claim 1 or 2 times of capacity midium voltage cable, it is characterized in that：The wire is double-decker, including S types
Or Z-type inner conductor (2) and trapezoidal outer layer conductor (3).
4. as claimed in claim 3 times of capacity midium voltage cable, it is characterized in that：The conductor shield (4) and insulation screen
(6) it is semiconductive screen layer.
5. as claimed in claim 4 times of capacity midium voltage cable, it is characterized in that：The insulating barrier (5) is crosslinked polyetylene insulated
Layer.
6. as claimed in claim 5 times of capacity midium voltage cable, it is characterized in that：The conductive insulated wire cores periphery passes through glass fibers
Dimension band lapping layer (9) is wrapped.
7. as claimed in claim 6 times of capacity midium voltage cable, it is characterized in that：The lapping layer (9) and conductive insulated wire cores it
Between formed gap, by glass cord packed layer (8) fill.
8. as claimed in claim 7 times of capacity midium voltage cable, it is characterized in that：The sheath (10) is low-smoke halogen-free polyolefin
Sheath.
9. as claimed in claim 8 times of capacity midium voltage cable, it is characterized in that：The armor is galvanized steel strip armor.
10. as claimed in claim 9 times of capacity midium voltage cable, it is characterized in that：The outer jacket hinders for low-smoke halogen-free polyolefin
Combustion outer jacket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611223365.6A CN106782856A (en) | 2016-12-27 | 2016-12-27 | Times capacity midium voltage cable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611223365.6A CN106782856A (en) | 2016-12-27 | 2016-12-27 | Times capacity midium voltage cable |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106782856A true CN106782856A (en) | 2017-05-31 |
Family
ID=58927130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611223365.6A Pending CN106782856A (en) | 2016-12-27 | 2016-12-27 | Times capacity midium voltage cable |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106782856A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109509582A (en) * | 2018-12-20 | 2019-03-22 | 河南乐山电缆有限公司 | A kind of low pressure fireproof power cable |
| CN109585080A (en) * | 2018-12-25 | 2019-04-05 | 深圳供电局有限公司 | Optical fiber temperature measurement power cable |
| CN109841342A (en) * | 2018-12-25 | 2019-06-04 | 深圳供电局有限公司 | Distributed optical fiber temperature measurement and communication cable |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2582118Y (en) * | 2002-11-11 | 2003-10-22 | 上海电缆研究所 | Expanding conductor |
| CN201498230U (en) * | 2009-09-14 | 2010-06-02 | 远东复合技术有限公司 | Diameter-expanding conductor |
| KR20110061205A (en) * | 2009-12-01 | 2011-06-09 | 엘에스전선 주식회사 | High voltage electric cable for application of wind turbine |
| CN102568691A (en) * | 2012-03-28 | 2012-07-11 | 江苏长峰电缆有限公司 | Environment-friendly mid-voltage fire resistant cable |
| CN204143951U (en) * | 2014-11-19 | 2015-02-04 | 河北华通线缆集团有限公司 | The expanding conductor medium-pressure power cable of a kind of resistant environmental low-smoke halogen-free flame |
| CN204651020U (en) * | 2015-04-07 | 2015-09-16 | 远东电缆有限公司 | A kind of diameter enlarging bus bar used for intelligent electric network |
| CN206441575U (en) * | 2016-12-27 | 2017-08-25 | 北京天成瑞源电缆有限公司 | Times capacity midium voltage cable |
-
2016
- 2016-12-27 CN CN201611223365.6A patent/CN106782856A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2582118Y (en) * | 2002-11-11 | 2003-10-22 | 上海电缆研究所 | Expanding conductor |
| CN201498230U (en) * | 2009-09-14 | 2010-06-02 | 远东复合技术有限公司 | Diameter-expanding conductor |
| KR20110061205A (en) * | 2009-12-01 | 2011-06-09 | 엘에스전선 주식회사 | High voltage electric cable for application of wind turbine |
| CN102568691A (en) * | 2012-03-28 | 2012-07-11 | 江苏长峰电缆有限公司 | Environment-friendly mid-voltage fire resistant cable |
| CN204143951U (en) * | 2014-11-19 | 2015-02-04 | 河北华通线缆集团有限公司 | The expanding conductor medium-pressure power cable of a kind of resistant environmental low-smoke halogen-free flame |
| CN204651020U (en) * | 2015-04-07 | 2015-09-16 | 远东电缆有限公司 | A kind of diameter enlarging bus bar used for intelligent electric network |
| CN206441575U (en) * | 2016-12-27 | 2017-08-25 | 北京天成瑞源电缆有限公司 | Times capacity midium voltage cable |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109509582A (en) * | 2018-12-20 | 2019-03-22 | 河南乐山电缆有限公司 | A kind of low pressure fireproof power cable |
| CN109585080A (en) * | 2018-12-25 | 2019-04-05 | 深圳供电局有限公司 | Optical fiber temperature measurement power cable |
| CN109841342A (en) * | 2018-12-25 | 2019-06-04 | 深圳供电局有限公司 | Distributed optical fiber temperature measurement and communication cable |
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