CN106531329A - Super-large section hollow split conductor-type water-blocking control cable for train - Google Patents
Super-large section hollow split conductor-type water-blocking control cable for train Download PDFInfo
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- CN106531329A CN106531329A CN201611264366.5A CN201611264366A CN106531329A CN 106531329 A CN106531329 A CN 106531329A CN 201611264366 A CN201611264366 A CN 201611264366A CN 106531329 A CN106531329 A CN 106531329A
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- Prior art keywords
- conductor
- layer
- corrugated
- hollow
- cable
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Classifications
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/02—Cables with twisted pairs or quads
- H01B11/06—Cables with twisted pairs or quads with means for reducing effects of electromagnetic or electrostatic disturbances, e.g. screens
-
- 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
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/30—Insulated conductors or cables characterised by their form with arrangements for reducing conductor losses when carrying alternating current, e.g. due to skin effect
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Insulated Conductors (AREA)
Abstract
The invention discloses a super-large section hollow split conductor-type water-blocking control cable for a train. A hollow layer is arranged at the center of the cable; a single conductor single-wire layer is arranged outside the hollow layer; multiple corrugated conductor strand blocks are arranged outside the conductor single-wire layer and a corrugated water-blocking layer is arranged outside each corrugated conductor strand block; water-blocking filling strips are arranged in gaps between the corrugated water-blocking layers; and a polyester tape, a braided tinned copper wire shielding layer, a non-alkali glass fiber tape and a flame-retardant polyvinyl chloride outer sheath are sequentially arranged outside the corrugated water-blocking layers. The control cable disclosed by the invention has the functions that the production technology difficulty is reduced, the characteristic requirements of tools, molds and equipment are low, the structure is stable, the skin effect is low, the carrying capacity is high, the water-blocking property is good, and the corrosion resistance, the oxidation resistance, the high temperature resistance, the oil control property and the corrosion resistance are good.
Description
Technical field
The present invention relates to field of cables, the hollow milliken conductor formula train control electricity that blocks water of specifically a kind of super-section
Cable.
Background technology
With the high speed development of social economy, track traffic also experienced repeatedly speed-raising, develop from initial low speed train
High ferro till now, quickly, speed can reach 300～400 kilometers per hour to the high ferro speed of service, and cable is at a high speed
Train operation is requisite, and the cable for bullet train has to possess stronger impact resistance, vibration resistance, fuel-resistant
Oil and high temperature resistant and low temperature resistant performance, if oil resistivity is low, fuel oil can be penetrated in the insulating barrier of cable, caused absolutely
Edge layer is expanded, and ultimately results in the rupture of insulating barrier, affects its normal use, existing bullet train cable impact resistance and
Oil resistivity still needs to improve.
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 800-1800mm2, have
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 representing）,
Thus segmentation effect is just no longer obvious.Meanwhile, the mode of this milliken conductor there is also many difficult problems and disadvantage in process of production
End：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 conductor
Stability and flexural property of structure etc. cannot meet requirement；Two is that power cable often wants conductor lead using pressing
Body, to improve the activity coefficient of wire, reduced outside diameter reduces gap between conductor, prevents moisture from penetrating into；Make to connect more between conductor
Closely, it is to avoid loosen some caused problems. contact surface increase electric conductivity strengthens and avoids contact with the bad heating for causing
Resistance is big etc.；And sector conductor stock block is that sector is pressed, per layer of shape is different, and when stock block section is excessive, the difficulty pressed increases
Plus.
In order to increase cross-sectional area of conductor, a kind of prior art improvement is, using hollow milliken conductor structure, including to support
Serpentine pipe, outside the serpentine pipe for supporting, the corrugated type conductor stock block of stranded four segmentation, five segmentations, six segmentations and seven segmentations, this
The serpentine pipe that the hollow milliken conductor of structure is supported often adopts metallic coil to ensure certain intensity（Such as rustless steel spiral shell
Coil, bronze serpentine pipe etc.）, different metal material can increase line loss, cause electric field uneven.Even if using identical
Material, can also produce gap between serpentine pipe and milliken conductor stock block, loose contact causes heating resistor big.And adopt drawing pipe
Or the copper pipe of material such as plastics etc., pliability is low, and the pliability of whole conductor can be caused to reduce.
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, frock mould
Tool, equipment characteristic requirements it is low, Stability Analysis of Structures, kelvin effect are low, and current-carrying capacity is big, block-water performance is good, corrosion-resistant, resistance to oxidation, resistance to
High temperature, oil-control is good, the hollow milliken conductor formula train watertight control cable of erosion-resisting super-section.
A kind of hollow milliken conductor formula train watertight control cable of super-section of the present invention, the center of the cable
For hollow layer, the conductor single line layer of monolayer is externally provided with hollow layer；Multiple corrugated conductor stock blocks are externally provided with conductor single line layer,
Each corrugated conductor stock block is externally provided with corrugated water blocking layer；The filling that blocks water is provided with gap between the corrugated water blocking layer
Bar, be sequentially provided with outside multiple corrugated water blocking layers polyester belt, braiding tinned copper wire screen layer, alkali-free glass silk fiber band and
Flame-proof polyvinyl chloride oversheath.
Further improve, described corrugated conductor stock block is four pieces, its cross sectional shape size all same.
Further improve, described conductor single line layer is made up of multiple " Z " type conductor single lines.
Compared with prior art, the beneficial effects of the present invention is：
1st, hollow " Z " type conductor single line stranded layer of the internal self-supporting of the present invention increases conductor whole cross section, meets super
Heavy in section requirement；The fan-shaped high and fan-shaped wide depth of penetration for being less than 2 times of corrugated type conductor stock block, between each corrugated type stock block and
Single line is mutually isolated between stranded " Z " type conductor, although increased considerably cross-sectional area of conductor, segmentation effect is still obvious,
The adverse effect of " kelvin effect " and " approach effect " is preferably minimized limit, substantially increases the transmission capacity of wire." Z " type is led
Body single line is a kind of self supporting structure, and Stability Analysis of Structures is very close to each other between conductor single line, need not press, you can meet conductor list
Connect more close requirement between line.Hollow self supporting structure ensure that intensity, can be with alternative metals serpentine pipe（Such as rustless steel
Serpentine pipe, bronze serpentine pipe etc.）, drawing copper pipe or the support tube of the material such as plastics, gap is little between milliken conductor stock block,
And the pliability of whole conductor will not be reduced.Hollow structure also at utmost make use of cross-sectional area of conductor, reduction by a larger margin
The adverse effect of " kelvin effect ".
2nd, stranded " Z " the type conductor single line of segmentation sector conductor stock block inner circumferential of present invention set, inside is provided with a strand block and blocks water
Layer and the packing that blocks water, the segmentation sector conductor stock block section of set reach 1000-2000mm2, " Z " type conductor single line of increase
Increase conductor whole cross section with stock block water blocking layer, meet the requirement of super-section.
3rd, the gap of and set outer in stock block conductor is equipped with water blocking layer so that overall conductor is protected by water blocking layer,
So that conductor has very strong water stop function, oxidation, the corrosion of conductor will not be caused because of moisture immersion, so as to affect cable
Electrical property, or even there is abnormal broken line accident.
4th, the present invention adopts polyester belt so that the quality of cable mitigates significantly, and have good waterproof effect, it is nontoxic,
Free from extraneous odour, antibacterial, anti-chemical agent, corrosion resistance.
5th, the present invention is provided with inside and outside pvc sheath so that cable has more preferable anti-flammability, oil-control.
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.
The hollow milliken conductor formula train watertight control cable of a kind of super-section as shown in Figure 1, the center of the cable
For hollow layer 1, the conductor single line layer 2 of monolayer is externally provided with hollow layer；Four corrugated conductor stocks are externally provided with conductor single line layer
Block 3, each corrugated conductor stock block are externally provided with corrugated water blocking layer 4；Resistance is provided with gap between the corrugated water blocking layer
Water packing 5, is sequentially provided with polyester belt 6, braiding tinned copper wire screen layer 7, alkali-free glass wool outside four corrugated water blocking layers
Fiber band 8 and flame-proof polyvinyl chloride oversheath 9.
Described conductor single line layer is made up of multiple " Z " type conductor single lines, and " Z " type conductor single line is a kind of self-supporting knot
Structure, Stability Analysis of Structures are very close to each other between conductor single line, need not press, you can meet and more closely will
Ask；Hollow self supporting structure ensure that intensity, can be with alternative metals serpentine pipe（Such as stainless steel helix tube, bronze serpentine pipe
Deng）, drawing copper pipe or the support tube of the material such as plastics, gap is little between milliken conductor stock block, and will not reduce whole
The pliability of conductor.Hollow structure also at utmost make use of cross-sectional area of conductor, by a larger margin reduce " kelvin effect " no
Profit affects.The section of the segmentation sector conductor stock block of described set reaches 1000-2000mm2, increase conductor whole cross section, it is full
The foot 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 (3)
1. the hollow milliken conductor formula train watertight control cable of a kind of super-section, it is characterised in that：The center of the cable is
Hollow layer, is externally provided with the conductor single line layer of monolayer in hollow layer；Multiple corrugated conductor stock blocks are externally provided with conductor single line layer, often
Individual corrugated conductor stock block is externally provided with corrugated water blocking layer；The filling that blocks water is provided with gap between the corrugated water blocking layer
Bar, be sequentially provided with outside multiple corrugated water blocking layers polyester belt, braiding tinned copper wire screen layer, alkali-free glass silk fiber band and
Flame-proof polyvinyl chloride oversheath.
2. the hollow milliken conductor formula train watertight control cable of super-section according to claim 1, it is characterised in that：
Described corrugated conductor stock block is four pieces, its cross sectional shape size all same.
3. the hollow milliken conductor formula train watertight control cable of super-section according to claim 1, it is characterised in that：
Described conductor single line layer is made up of multiple " Z " type conductor single lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611264366.5A CN106531329A (en) | 2016-12-30 | 2016-12-30 | Super-large section hollow split conductor-type water-blocking control cable for train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611264366.5A CN106531329A (en) | 2016-12-30 | 2016-12-30 | Super-large section hollow split conductor-type water-blocking control cable for train |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106531329A true CN106531329A (en) | 2017-03-22 |
Family
ID=58336215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611264366.5A Pending CN106531329A (en) | 2016-12-30 | 2016-12-30 | Super-large section hollow split conductor-type water-blocking control cable for train |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106531329A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202134226U (en) * | 2011-07-06 | 2012-02-01 | 浙江晨光电缆股份有限公司 | High voltage cable large cross section split conductor |
| CN202167252U (en) * | 2011-07-08 | 2012-03-14 | 安徽华星电缆集团有限公司 | High-temperature-resistant and fireproof ceramic silicone rubber cable |
| WO2012065634A1 (en) * | 2010-11-17 | 2012-05-24 | Prysmian S.P.A. | Electric sector cable |
| CN104347152A (en) * | 2014-11-24 | 2015-02-11 | 无锡江南电缆有限公司 | Oversized-section hollow corrugated split conductor |
| CN204332471U (en) * | 2014-12-29 | 2015-05-13 | 江苏久泰电缆有限公司 | A kind of degree of depth waterproof power cable |
| CN204332501U (en) * | 2014-12-03 | 2015-05-13 | 董超超 | A kind of new waterproof high voltage power cable |
| CN204667958U (en) * | 2015-05-28 | 2015-09-23 | 浙江万马股份有限公司 | The full water-resistant armored low-voltage cable of a kind of compact |
-
2016
- 2016-12-30 CN CN201611264366.5A patent/CN106531329A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012065634A1 (en) * | 2010-11-17 | 2012-05-24 | Prysmian S.P.A. | Electric sector cable |
| CN202134226U (en) * | 2011-07-06 | 2012-02-01 | 浙江晨光电缆股份有限公司 | High voltage cable large cross section split conductor |
| CN202167252U (en) * | 2011-07-08 | 2012-03-14 | 安徽华星电缆集团有限公司 | High-temperature-resistant and fireproof ceramic silicone rubber cable |
| CN104347152A (en) * | 2014-11-24 | 2015-02-11 | 无锡江南电缆有限公司 | Oversized-section hollow corrugated split conductor |
| CN204332501U (en) * | 2014-12-03 | 2015-05-13 | 董超超 | A kind of new waterproof high voltage power cable |
| CN204332471U (en) * | 2014-12-29 | 2015-05-13 | 江苏久泰电缆有限公司 | A kind of degree of depth waterproof power cable |
| CN204667958U (en) * | 2015-05-28 | 2015-09-23 | 浙江万马股份有限公司 | The full water-resistant armored low-voltage cable of a kind of compact |
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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 |
Application publication date: 20170322 |
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| WD01 | Invention patent application deemed withdrawn after publication |