CN105489305A - DC flexible cable for rail transit - Google Patents
DC flexible cable for rail transit Download PDFInfo
- Publication number
- CN105489305A CN105489305A CN201610003281.5A CN201610003281A CN105489305A CN 105489305 A CN105489305 A CN 105489305A CN 201610003281 A CN201610003281 A CN 201610003281A CN 105489305 A CN105489305 A CN 105489305A
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- Prior art keywords
- layer
- conductor
- flame
- track traffic
- wrapped
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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
- H01B7/04—Flexible cables, conductors, or cords, e.g. trailing cables
- H01B7/041—Flexible cables, conductors, or cords, e.g. trailing cables attached to mobile objects, e.g. portable tools, elevators, mining equipment, hoisting cables
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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
- H01B7/2825—Preventing penetration of fluid, e.g. water or humidity, into conductor or cable using a water impermeable sheath
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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
- H01B7/29—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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/006—Constructional features relating to the conductors
Landscapes
- Insulated Conductors (AREA)
Abstract
The invention relates to a DC flexible cable for rail transit. The DC flexible cable for rail transit is in a coaxially arranged and sequentially nested structure, and comprises a conductor, a cross-linked polyethylene insulating layer, a water-blocking tape wrapping water-resisting layer, a flame-retardant polyethylene waterproof layer, an oxygen-isolating layer and a sheath layer, wherein the conductor comprises a tinned flexible copper conductor; the cross-linked polyethylene insulating layer extrudes the outside of the conductor; the water-blocking tape wrapping water-resisting layer wraps the outside of the insulating layer; the flame-retardant polyethylene waterproof layer extrudes the outside of the water-resisting layer; the oxygen-isolating layer extrudes or wraps the outside of the waterproof layer; and the sheath layer extrudes the outside of the oxygen-isolating layer. Compared with the prior art, by a low-smoke, halogen-free and flame-retardant polyolefin sheath layer, the DC flexible cable is flame-retardant, low-smoke, nontoxic, safe and environment-friendly. The cable is high-temperature resistant, corrosion resistant, long in service lifetime, good in waterproofness and excellent in flame retardant property, has certain fire resistance, is convenient to install and lay and can adapt to a humid environment; and the cable is completely made of halogen-free and nontoxic materials, and is safe and environment-friendly.
Description
Technical field
The present invention relates to a kind of direct current cables, especially relate to a kind of track traffic DC soft cable.
Background technology
Along with develop rapidly is built in domestic city, urban transportation is also more and more blocked up, the track vehicle such as subway, light rail because transport capacity is large, punctual, quick, safe, comfortable, conserve space, do not destroy ground environment, pollute the plurality of advantages such as little, become the first-selection of large size city transport solution bottleneck problem.In recent years, each metropolitan subway, subway, light rail are built one after another and extend.Add that the planning of country " 12 " overall transportation system proposes to build " four vertical four is horizontal " Line for Passenger Transportation, domestic high ferro, PDL Construction are flourish.Developing rapidly of track traffic, drives the sharp increase of rail transit line cabling requirements.Because Rail Transit System requires safe, reliable, environmentally friendly, require high to cable for rail transit, General Requirements cable waterproof is moistureproof, fire-retardant, nontoxic, environmental protection, easily constructs.There is larger gap with the performance requirement of cable for rail transit in general cable now in the performance such as moistureproof, fire-retardant and nontoxic.
Chinese patent ZL201220738467.2 discloses a kind of direct current cables, comprise set gradually from inside to outside hollow conductor, conductor screen, insulation, insulation shielding, metallic shield, sheath.The patented product perfect heat-dissipating, ampacity is large, and Electric Field Distribution is even, has higher disruptive field intensity.But the patented product is a kind of distribution system and current converter cable, mainly solve the problem of big current transmission of electricity and disruptive field intensity, the demand that it is fire-retardant, moistureproof, nontoxicity can meet cable for rail transit.
Summary of the invention
Object of the present invention be exactly in order to overcome above-mentioned prior art exist defect and a kind of track traffic DC soft cable is provided.
Object of the present invention can be achieved through the following technical solutions:
A kind of track traffic DC soft cable, is the structure nested successively coaxially arranged, comprises:
The conductor be made up of zinc-plated soft copper conductor, be extruded in the crosslinked polyetylene insulated layer outside conductor, at the outer wrapped wrapped water blocking layer of waterstop of insulating barrier, the flame-proof polyethylene watertight composition extruded outside water blocking layer, extrude outside watertight composition or wrapped oxygen barrier layer, the restrictive coating extruded outside oxygen barrier layer.
Described zinc-plated soft copper conductor is the zinc-plated soft copper conductor of the 5th class meeting GB/T3956 standard.
Described crosslinked polyetylene insulated layer adopts warm water crosslinking mode or cross-linking radiation mode to make and obtains.
Described water blocking layer is the water blocking layer of the overlapping wrapped formation of multilayer waterstop spiral.
The material composition proportioning of described waterstop is polyethylene 30 parts, acrylonitrile-butadiene rubber 40 parts, water-proofing powder (polyacrylic acid salt form resin) 30-60 part, maleic anhydride 7 parts, between waterstop wrapping angle 25 ° ~ 35 °.
Described oxygen barrier layer is that Ceramic silicon rubber extrudes or the oxygen barrier layer of wrapped formation.
When described Ceramic silicon rubber oxygen barrier layer adopts wrapped mode, adopt overlapping wrapped, between wrapping angle 25 ° ~ 35 °.
Described restrictive coating is halogen-free and low-smoke flame-retardant polyolefin sheathed layer.
Compared with prior art, the present invention has the following advantages:
1, conductor adopts the 5th class zinc-plated soft copper conductor, anticorrosion, high temperature resistant, and conductor structure is soft, and be convenient to mounting and installation, bending radius is little, is convenient at narrow local mounting and installation.
2, adopt crosslinked polyetylene insulated, good insulation preformance.Thermosets is become, high temperature resistant, good mechanical property after insulation is crosslinked.
3, the water blocking layer of the overlapping wrapped formation of multilayer waterstop spiral can longitudinal waterproof, and the flame-proof polyethylene watertight composition extruded can radial waterproof, and the waterproof and dampproof function admirable of cable, is particularly useful for the wet environment of underground.
4, oxygen barrier layer adopts and extrudes or wrapped Ceramic silicon rubber oxygen barrier layer, fire resistance is good, the insulation duricrust of one deck sealing is become during high temperature more than 300 DEG C, stop the injury to built-in electrical insulation and conductor of high temperature and flame, make cable when the fire resistance meeting GB/T19666 requires, also there is quite high fire resistance.
5, halogen-free and low-smoke flame-retardant polyolefin sheathedly cigarette, Halogen is bent down at high temperature, flame condition, environmental protection, safety.
6, its electric capacity of ac cable of large length and reactance all comparatively large, the loss caused because of induction reactance, capacitive reactance and voltage drop larger.The design of direct current cables makes cable not by the impact of induction reactance, capacitive reactance, is convenient to long distance, low-voltage, big current transmission of electricity.Because conductor adopts the 5th class tinned copper conductor, the form of the multiple strand of tin-coated copper single line employing is wherein stranded to be formed, and copper single line back and forth changes in the position of radial direction, greatly can weaken kelvin effect, reduces induction reactance; The crosslinked polyethylene that insulation adopts dielectric coefficient minimum, outer superposition has water blocking layer, watertight composition, oxygen barrier layer, the restrictive coating of insulation buffer action, and internal electric field and external electric field spacing are increased, and cable capacitance reduces.When being applied to direct current system, induction reactance, capacitive reactance can not be produced.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure, 1-conductor, 2-insulating barrier, 3-water blocking layer, 4-watertight composition, 5-oxygen barrier layer, 6-restrictive coating.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
A kind of track traffic DC soft cable, its structure as shown in Figure 1, for the structure nested successively coaxially arranged, comprise the conductor 1 be made up of zinc-plated soft copper conductor, be extruded in the insulating barrier 2 of the crosslinked polyethylene material outside conductor 1, at the water blocking layer 3 of the outer wrapped wrapped formation of waterstop of insulating barrier 2, the watertight composition 4 of the flame-proof polyethylene material extruded outside water blocking layer 3, extrude outside watertight composition 4 or wrapped oxygen barrier layer 5, the restrictive coating 6 extruded outside oxygen barrier layer 5.
Wherein, the zinc-plated soft copper conductor of use is the zinc-plated soft copper conductor of the 5th class meeting GB/T3956 standard; The insulating barrier 2 of crosslinked polyethylene material adopts warm water crosslinking mode or cross-linking radiation mode; Water blocking layer 3 is the water blocking layer of the overlapping wrapped formation of multilayer waterstop spiral, the material composition proportioning of waterstop used is polyethylene 30 parts, acrylonitrile-butadiene rubber 40 parts, water-proofing powder (polyacrylic acid salt form resin) 30-60 part, maleic anhydride 7 parts, between waterstop wrapping angle 25 ° ~ 35 °; The watertight composition 4 of flame-proof polyethylene material; Oxygen barrier layer 5 extrudes or the oxygen barrier layer of wrapped formation for Ceramic silicon rubber, when adopting wrapped mode, adopts overlapping wrapped, between wrapping angle 25 ° ~ 35 °.It is below concrete case study on implementation.
Embodiment 1
A kind of track traffic DC soft cable, for the structure nested successively coaxially arranged, comprise the conductor be made up of zinc-plated soft copper conductor, be extruded in the crosslinked polyetylene insulated layer outside conductor, at the outer wrapped wrapped water blocking layer of waterstop of insulating barrier, the flame-proof polyethylene watertight composition extruded outside water blocking layer, extrudes or wrapped oxygen barrier layer, the restrictive coating extruded outside oxygen barrier layer outside watertight composition.
Wherein, the zinc-plated soft copper conductor of employing is the zinc-plated soft copper conductor of the 5th class meeting GB/T3956 standard.Crosslinked polyetylene insulated layer adopts warm water crosslinking mode to make and obtains.Water blocking layer is the water blocking layer of the overlapping wrapped formation of multilayer waterstop spiral.The material composition proportioning of waterstop is polyethylene 30 parts, acrylonitrile-butadiene rubber 40 parts, water-proofing powder polyacrylic acid salt form resin 30 parts, maleic anhydride 7 parts, and waterstop wrapping angle is 25 °.Oxygen barrier layer is the oxygen barrier layer that Ceramic silicon rubber extrudes formation.Restrictive coating is halogen-free and low-smoke flame-retardant polyolefin sheathed layer.
Embodiment 2
A kind of track traffic DC soft cable, for the structure nested successively coaxially arranged, comprise the conductor be made up of zinc-plated soft copper conductor, be extruded in the crosslinked polyetylene insulated layer outside conductor, at the outer wrapped wrapped water blocking layer of waterstop of insulating barrier, the flame-proof polyethylene watertight composition extruded outside water blocking layer, extrudes or wrapped oxygen barrier layer, the restrictive coating extruded outside oxygen barrier layer outside watertight composition.
Wherein, the zinc-plated soft copper conductor of employing is the zinc-plated soft copper conductor of the 5th class meeting GB/T3956 standard.Crosslinked polyetylene insulated layer adopts cross-linking radiation mode to make and obtains.Water blocking layer is the water blocking layer of the overlapping wrapped formation of multilayer waterstop spiral.The material composition proportioning of waterstop is polyethylene 30 parts, acrylonitrile-butadiene rubber 40 parts, water-proofing powder polyacrylic acid salt form resin 40 parts, maleic anhydride 7 parts, and waterstop wrapping angle is 30 °.Oxygen barrier layer is the oxygen barrier layer that Ceramic silicon rubber adopts overlapping wrapped formation, wrapping angle 25 °.Restrictive coating is halogen-free and low-smoke flame-retardant polyolefin sheathed layer.
Embodiment 3
A kind of track traffic DC soft cable, for the structure nested successively coaxially arranged, comprise the conductor be made up of zinc-plated soft copper conductor, be extruded in the crosslinked polyetylene insulated layer outside conductor, at the outer wrapped wrapped water blocking layer of waterstop of insulating barrier, the flame-proof polyethylene watertight composition extruded outside water blocking layer, extrudes or wrapped oxygen barrier layer, the restrictive coating extruded outside oxygen barrier layer outside watertight composition.
Wherein, the zinc-plated soft copper conductor of employing is the zinc-plated soft copper conductor of the 5th class meeting GB/T3956 standard.Crosslinked polyetylene insulated layer adopts cross-linking radiation mode to make and obtains.Water blocking layer is the water blocking layer of the overlapping wrapped formation of multilayer waterstop spiral.The material composition proportioning of waterstop is polyethylene 30 parts, acrylonitrile-butadiene rubber 40 parts, water-proofing powder polyacrylic acid salt form resin 60 parts, maleic anhydride 7 parts, and waterstop wrapping angle is 35 °.Oxygen barrier layer is the oxygen barrier layer that Ceramic silicon rubber adopts overlapping wrapped formation, wrapping angle 55 °.Restrictive coating is halogen-free and low-smoke flame-retardant polyolefin sheathed layer.
When track traffic DC soft cable mounting and installation of the present invention, the zinc-plated soft copper conductor structure of the 5th class is soft, and be convenient to mounting and installation, bending radius is little, and be convenient at narrow local mounting and installation, tinned conductor Corrosion Protection is good, and the life-span is long.Crosslinked polyetylene insulated performance is good, becomes thermosets, high temperature resistant, good mechanical property after crosslinked.The water blocking layer of the overlapping wrapped formation of multilayer waterstop spiral can longitudinal waterproof, and the flame-proof polyethylene watertight composition extruded can radial waterproof, and the waterproof and dampproof function admirable of cable, is particularly useful for the wet environment of underground.Oxygen barrier layer adopts and extrudes or wrapped Ceramic silicon rubber oxygen barrier layer, fire resistance is good, the insulation duricrust of one deck sealing is become during high temperature more than 300 DEG C, stop the injury to built-in electrical insulation and conductor of high temperature and flame, make cable when the fire resistance meeting GB/T19666 requires, also there is quite high fire resistance.Halogen-free and low-smoke flame-retardant polyolefin sheathedly bend down cigarette, Halogen at high temperature, flame condition, environmental protection, safety.When running into fire, outermostly halogen-free and low-smoke flame-retardant polyolefin sheathedly can play good fire retardation, effective ground resistance can stop the intensity of a fire and prolong burning along cable itself, halogen-free and low-smoke flame-retardant polyolefin sheathedly just form ashes, melting drippage can not occur.After halogen-free and low-smoke flame-retardant polyolefin sheathed layer is destroyed, the Ceramic silicon rubber oxygen barrier layer exposed can not be burnt, meet fire or more than 300 DEG C, the high temperature resistant duricrust of sealing during high temperature, can be formed, stop the injury to built-in electrical insulation and conductor of high temperature and flame, cable is made to stop propagation of flame in case of fire, play good fire retardation, not melting under the flame of oxygen barrier layer duricrust more than 900 DEG C, do not drip, there is quite high fire resistance, ensure that circuit is still energized a period of time in case of fire, for the quality time is won in evacuating personnel escape and emergency management and rescue.The direct current design of cable makes cable not to be subject to impedance influences, greatly reduces line loss and voltage drop.Above-mentioned measures makes track traffic DC soft cable mounting and installation of the present invention convenient, electric conductivity, insulation property, waterproof and dampproof function admirable, also has quite high fire resistance when the fire resistance meeting GB/T19666 requires.This cable is all made up of Halogen, non-toxic material simultaneously, safety, environmental protection, is particularly suitable for orbit traffic direct current driving cable.
The present invention is made up of Halogen, non-toxic material, and fire-retardant, moistureproof, safety, environmental protection, also have quite high fire resistance; Adopt flexible conductor structure, mounting and installation is convenient, is convenient in the narrow local laying installation such as vehicle, subway tunnel.This cable conduction performance meets GB/T3956 " conductor of cable " standard-required, withstand voltage properties consistent with the power cable of a high electric pressure (750V DC soft cable and 0.6/1kV power cable consistent, 1500V DC soft cable is consistent with 1.8/3kV power cable), fire-retardant and low cigarette, Halogen performance meet the requirement and low cigarette, Halogen performance requirement that in GB/T19666 " fire-retardant and fire-resistant wire and cable general rule ", category-A bunchy is fire-retardant.Waterproof and dampproof function admirable, cable is soft, and bending radius is little, lays conveniently, is specially adapted to DC power cable in track traffic.
Claims (9)
1. a track traffic DC soft cable, is characterized in that, this cable is the coaxial structure nested successively arranged, and comprising:
The conductor be made up of zinc-plated soft copper conductor, be extruded in the crosslinked polyetylene insulated layer outside conductor, at the outer wrapped wrapped water blocking layer of waterstop of insulating barrier, the flame-proof polyethylene watertight composition extruded outside water blocking layer, extrude outside watertight composition or wrapped oxygen barrier layer, the restrictive coating extruded outside oxygen barrier layer.
2. a kind of track traffic DC soft cable according to claim 1, is characterized in that, described zinc-plated soft copper conductor is the zinc-plated soft copper conductor of the 5th class meeting GB/T3956 standard.
3. a kind of track traffic DC soft cable according to claim 1, is characterized in that, described crosslinked polyetylene insulated layer adopts warm water crosslinking mode or cross-linking radiation mode to prepare.
4. a kind of track traffic DC soft cable according to claim 1, is characterized in that, described water blocking layer is the water blocking layer of the overlapping wrapped formation of multilayer waterstop spiral.
5. a kind of track traffic DC soft cable according to claim 4, it is characterized in that, the material composition proportioning of described waterstop is polyethylene 30 parts, acrylonitrile-butadiene rubber 40 parts, water-proofing powder 30-60 part, maleic anhydride 7 parts, between waterstop wrapping angle 25 ° ~ 35 °.
6. a kind of track traffic DC soft cable according to claim 5, is characterized in that, described water-proofing powder is polyacrylic acid salt form resin.
7. a kind of track traffic DC soft cable according to claim 1, is characterized in that, described oxygen barrier layer is that Ceramic silicon rubber extrudes or the oxygen barrier layer of wrapped formation.
8. a kind of track traffic DC soft cable according to claim 7, is characterized in that, when described Ceramic silicon rubber oxygen barrier layer adopts wrapped mode, adopts overlapping wrapped, between wrapping angle 25 ° ~ 35 °.
9. a kind of track traffic DC soft cable according to claim 1, is characterized in that, described restrictive coating is halogen-free and low-smoke flame-retardant polyolefin sheathed layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610003281.5A CN105489305A (en) | 2016-01-04 | 2016-01-04 | DC flexible cable for rail transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610003281.5A CN105489305A (en) | 2016-01-04 | 2016-01-04 | DC flexible cable for rail transit |
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| Publication Number | Publication Date |
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| CN105489305A true CN105489305A (en) | 2016-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610003281.5A Pending CN105489305A (en) | 2016-01-04 | 2016-01-04 | DC flexible cable for rail transit |
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| CN (1) | CN105489305A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110491588A (en) * | 2019-09-19 | 2019-11-22 | 江苏亨通电力电缆有限公司 | A kind of novel rail eraser sheath DC traction cable and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101372332A (en) * | 2008-09-28 | 2009-02-25 | 厦门大学 | Method for extracting carbon dioxide dissolved in sea water and from carbonate |
| CN101464548A (en) * | 2009-01-08 | 2009-06-24 | 东华大学 | Water-resistant material used for optical cable or cable cladding, connector and method for producing the same |
| CN201965962U (en) * | 2010-12-30 | 2011-09-07 | 安徽新亚特电缆集团有限公司 | Special high-flame-retardant cable for rail transit DC feed |
| CN203250588U (en) * | 2013-04-24 | 2013-10-23 | 河南华泰特种电缆有限公司 | Waterproof, anti-ant halogen-free low-smoke flame-retardant direct-current rail transit cable |
| CN205354743U (en) * | 2016-01-04 | 2016-06-29 | 上海新益电力线路器材有限公司 | Direct current flexible cable for track traffic |
-
2016
- 2016-01-04 CN CN201610003281.5A patent/CN105489305A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101372332A (en) * | 2008-09-28 | 2009-02-25 | 厦门大学 | Method for extracting carbon dioxide dissolved in sea water and from carbonate |
| CN101464548A (en) * | 2009-01-08 | 2009-06-24 | 东华大学 | Water-resistant material used for optical cable or cable cladding, connector and method for producing the same |
| CN201965962U (en) * | 2010-12-30 | 2011-09-07 | 安徽新亚特电缆集团有限公司 | Special high-flame-retardant cable for rail transit DC feed |
| CN203250588U (en) * | 2013-04-24 | 2013-10-23 | 河南华泰特种电缆有限公司 | Waterproof, anti-ant halogen-free low-smoke flame-retardant direct-current rail transit cable |
| CN205354743U (en) * | 2016-01-04 | 2016-06-29 | 上海新益电力线路器材有限公司 | Direct current flexible cable for track traffic |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110491588A (en) * | 2019-09-19 | 2019-11-22 | 江苏亨通电力电缆有限公司 | A kind of novel rail eraser sheath DC traction cable and preparation method thereof |
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Application publication date: 20160413 |
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