CN105182112A - Circuit for continuous discharge arc lightning rod experiment device - Google Patents
Circuit for continuous discharge arc lightning rod experiment device Download PDFInfo
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- CN105182112A CN105182112A CN201510510367.2A CN201510510367A CN105182112A CN 105182112 A CN105182112 A CN 105182112A CN 201510510367 A CN201510510367 A CN 201510510367A CN 105182112 A CN105182112 A CN 105182112A
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Abstract
Provided is a circuit for a continuous discharge arc lightning rod experiment device. A continuous arc spark generation circuit is formed by assembling a boosting transformer, a rectifier, an igniter, a discharge electrode, a main capacitor, and a boosting coupling transformer. The primary coil of the boosting transformer is connected with electric supply. The primary coil is connected with the input end of the rectifier. The rectifier is connected in the rear of the boosting transformer. The rectifier is connected with one end of the main capacitor and one end of the igniter. The main capacitor is connected between two wires of the rectifier. The rectifier is used to charge the main capacitor. One end of the igniter is connected with anode output of the rectifier, and the other end is connected with one pin of the input end of the primary coil of the boosting coupling transformer. The other input pin of the primary coil of the boosting coupling transformer is connected with the cathode end of the main capacitor. The boosting coupling transformer is the cathode end of the rectifier. One end of the primary of the boosting coupling transformer is connected with one end of the igniter, and the other end is connected with one end of a capacitor. An arc reception electrode is connected with ground and the grounding end of the boosting coupling transformer.
Description
Technical field
The present invention relates to a kind of circuit of lightning rod experimental provision, a kind ofly specifically can produce continuous arcing carries out its protective value quality of performance test reaction experimental provision circuit to lightning rod.Belong to lightning protection experimental technique field.
background technology:
Lightning rod, has another name called lightning rod, is used to the device that architecture protection thing, tall and big trees and equipment etc. are avoided being struck by lightning.The principle of lightning rod installs an arrester on protected object top, couples together with wire up to specification and the earial drainage earth mat being embedded in underground.Lightning rod specification must meet GB standard, and the terminal height specification that each lightning protection classification needs is different.If carry out lightning protection not in accordance with state specified standards, its effect will be had a greatly reduced quality greatly, even there will be the negative effect of drawing thunder and entering the room, and therefore all needs to carry out lightening protect before lightning-protected product dispatches from the factory.Lightning rod is of a great variety in the market, and type has multifarious, has discharging in advance, and large shielding angle, disappear all kinds of lightning rods such as thunder.And the test of lightning rod bothers relatively, the apparatus value needed is high, testing expense is high, the method of testing that present stage adopts is the pattern of pulsed discharge, test result also also exists certain limitation, comprehensively can not reflect the effect of lightning rod when reality uses, necessary existing lightening protect mode and device to be improved.
Do not find that there is the patent literature constructed with the present invention by patent retrieval, to have the patent of certain relation to mainly contain following with the present invention:
1, the patent No. is CN201310463798, name is called the patent of invention of " For Lightning-Rod Protection Disign In Substations tower safety assessment method ", which disclose a kind of For Lightning-Rod Protection Disign In Substations tower safety assessment method, comprise step to have: lightning rod tower is divided into four parts by short transverse by (1), calculate the wind load equivalence concentrated force of each several part respectively; (2) after obtaining the equivalent concentrated force of each several part, in finite element numerical simulation software, the complete equivalent concentrated force model of lightning-arrest shank is set up; (3) meet with stresses in lightning rod tower structure larger position and less position is determined; (4) determine whether military service several years steel performance there occurs deterioration; (5) fatigue lifetime of lightning-arrest shank is analyzed.
2, the patent No. is CN201320038577, name is called the utility model patent of " a kind of lightning rod discharge counter possessing with circuit checker ", which disclose a kind of lightning rod discharge counter possessing with circuit checker, comprise photoelectrical coupler, voltage comparator, circuit checker, microcontroller and display, the input end of described photoelectrical coupler connects the signaling switch contact of heavy-current discharge protective device on lightning rod, its output terminal connects the input end of voltage comparator by a wave filter, the output terminal of voltage comparator connects the input end of microcontroller, the output terminal of microcontroller connects display, described microcontroller is also connected with a storer, this storer is removable nonvolatile memory.
3, the patent No. is CN200820191482, name is called the utility model patent of " overhead transmission line and lightning rod lightning current population parameter on-Line Monitor Device ", which disclose a kind of overhead transmission line and lightning rod lightning current population parameter on-Line Monitor Device, relate to electric system lightningproof technology.The structure of this monitoring device is: current sensor, lightning strike signals sampling unit, data receiver are communicated with user terminal successively with GPRS, BT transmission unit, INTERNET net, and ftp server is connected with INTERNET net; Solar panel, accumulator are connected successively with voltage changer, and voltage changer is connected with lightning strike signals sampling unit, data receiver and GPRS, BT transmission unit respectively.
So although these patents above-mentioned all relate to the detection of lightning-protection system, it is also proposed the improvement opportunity scheme that some detect, but be all the detection proposed on-line system or device, function singleness, and system architecture is complicated, the experiment being difficult to accurately carry out product detects, and still needs to be improved further.
Summary of the invention
The object of the invention is to for the problem existing for existing lightning rod experiment, a kind of new lightning rod experimental provision circuit is proposed, this kind of lightning rod experimental provision circuit effectively can reduce the limitation of test result, more comprehensively reflects the effect of lightning rod when reality uses.
In order to reach this purpose, the invention provides a kind of continuous arcing spark lightning rod experimental provision circuit, comprise step-up transformer, rectifier, lighter, sparking electrode, electric arc receiving electrode, main capacitor and boosting coupling transformer, be combined to form continuous arcing spark by step-up transformer, rectifier, lighter, sparking electrode, electric arc receiving electrode, main capacitor and boosting coupling transformer and form circuit; Wherein, the first polar curve circle of step-up transformer T1 connects civil power, and secondary coil connects the input end of rectifier DB; Rectifier DB is connected after step-up transformer T1; Rectifier connects one end of main capacitor C1 and lighter GDT; Main capacitor C1 connects between two lines of rectifier DB, and rectifier is used for charging to main capacitor C1; Lighter GDT one end connects rectifier anode and exports, i.e. main capacitor positive terminal; The other end connects a pin of the input end of the primary coil L1 of boosting coupling transformer T2, and another input pin of the coupling transformer T2 primary coil that simultaneously boosts connects the negative pole end of main capacitor, and boosting coupling transformer T2 is the negative pole end of rectifier DB simultaneously; One end of elementary one end tie point firearm GDT of boosting coupling transformer T2, the other end connects one end of capacitor; Electric arc receiving electrode P is connected to the earth terminal of the earth and boosting coupling transformer.
Further, described main capacitor C1 and primary coil L1 forms a LC oscillation circuit; The equivalent capacity over the ground of sparking electrode C2 and secondary coil L2 also can form a LC oscillation circuit; When the LC oscillation frequency of primary return and secondary loop is equal, when igniter fire conducting, the electromagnetic major part that primary coil sends can be absorbed by secondary LC oscillation circuit.Now, because the electric potential difference on sparking electrode and ground is infinitely-great, the high-frequency alternating current that therefore can produce high voltage-small current inside the loop of secondary coil now discharge top can and near the object of ground connection release together with electric arc, electric arc is received by receiving electrode P, formation continuous print arc spark.
Further, described step-up transformer T1 adopts the input of 220V, 50Hz civil power, needs to bring the voltage up to more than 3000V by step-up transformer T1.
Further, described rectifier DB is the full-wave rectification bridge be made up of four (or four groups) high-voltage diodes, and rectifier DB has the breakdown reverse voltage up to more than 6000V, and during to meet system works, rectifier is not damaged by high electrical breakdown.
Further, described main capacitor adopts the series-parallel pattern of multiple electric capacity to combine, to reach specific capacitance required for system; The palpus resistance being used for discharge prevention in parallel on each single capacity cell simultaneously, resistance selects the large valued resistor in more than 100M Europe.
Further, described boosting coupling transformer T2 level have reliably connect the earth, stake resistance is less than 1 Europe.
Further, described sparking electrode (C2) is one has certain surface to amass and the round smooth object of conducting electricity, and it and ground define one " over the ground equivalent capacity ".
Further, described electric arc receiving electrode P is a needlepoint type metallic conductor.
Principle of work of the present invention is: first, and alternating current rises to more than 3000V through step-up transformer, then passes through the full-wave rectification bridge be made up of four (or four groups) high-voltage diodes, charges to capacitor (C1).When electric potential difference between main capacitance two pole plates acquires a certain degree, the air at meeting breakdown point firearm place, and primary coil L1 forms a LC oscillation circuit.At this moment, due to LC vibration, the frequency electromagnetic waves of certain frequency can be produced.The equivalent capacity over the ground of sparking electrode C2 and secondary coil L2 also can form a LC oscillation circuit.When the LC oscillation frequency of primary return and secondary loop is equal, when igniter fire conducting, the electromagnetic major part that primary coil sends can be absorbed by secondary LC oscillation circuit.The electric potential difference on sparking electrode and ground is infinitely-great, the high-frequency alternating current that therefore can produce high voltage-small current inside the loop of secondary coil now discharge top can with near the object of ground connection release together with electric arc.Received by receiving electrode P, form continuous arcing spark, when experiment detects, formed continuous arcing spark can be utilized to carry out various experiment test.
The invention has the advantages that:
This real the present invention and existing lightning rod method of testing contrast the advantage having following aspect:
1) the present invention supplements existing lightning rod method of testing one, uses continuous arcing to test to lightning rod the electric discharge further embodying lightning rod and protects institute's performance;
2) the present invention significantly can reflect the performances such as the degree of protection electric discharge angle of lightning rod;
3) the present invention more fully can reflect lightning rod in use procedure performance;
4) structure of the present invention is simple, and testing expense is low, is one more economical lightning rod proving installation circuit.
Accompanying drawing explanation
Fig. 1 is circuit theory schematic diagram of the present invention;
Fig. 2 is a kind of test mode schematic diagram of the present invention;
Fig. 3 is the another kind of test mode schematic diagram of the present invention.
Embodiment
The present invention is set forth further below in conjunction with the drawings and specific embodiments.
Embodiment one
Can be found out by accompanying drawing 1, the present invention relates to a kind of continuous arcing spark lightning rod experimental provision circuit, comprise step-up transformer 1, rectifier 2, lighter 3, sparking electrode 4, receiving electrode 10, main capacitor 5 and boosting coupling transformer 6, the continuous arcing spark be combined to form by step-up transformer 1, rectifier 2, lighter 3, sparking electrode 4, receiving electrode 10, main capacitor 5 and boosting coupling transformer 6 forms circuit; Wherein, the first polar curve circle of step-up transformer 1 connects civil power, and secondary coil connects the input end of rectifier 2; Step-up transformer 1 connects rectifier 2 below; Rectifier 2 connects one end of main capacitor 5 and lighter 3; Main capacitor 5 connects between two lines of rectifier 2, and rectifier 3 is used for charging to main capacitor 5; Lighter 3 one end connects rectifier 2 positive pole and exports, i.e. main capacitor 5 positive terminal; The other end connects a pin of the input end of the primary coil 7 of boosting coupling transformer 6, and another input pin of coupling transformer 6 primary coil 7 that simultaneously boosts connects the negative pole end of main capacitor 5, and boosting coupling transformer 6 is the negative pole end of rectifier 3 simultaneously; One end of elementary one end 7 tie point firearm 3 of boosting coupling transformer 6, the other end connects one end of main capacitor 5; Electric arc receiving electrode 10 is connected to the earth terminal of the earth and boosting coupling transformer 6.
Further, described main capacitor 5 forms a LC oscillation circuit with primary coil 7; The equivalent capacity over the ground of sparking electrode 4 and secondary coil 9 also can form a LC oscillation circuit; When the LC oscillation frequency of primary return and secondary loop is equal, when conducting lighted a fire by lighter 3, the electromagnetic major part that primary coil 7 sends can be absorbed by secondary LC oscillation circuit.Now, because the electric potential difference on sparking electrode 4 and ground is infinitely-great, the high-frequency alternating current that therefore can produce high voltage-small current inside the loop of secondary coil 9 now discharge top can with near the object of ground connection release together with electric arc, electric arc is received by receiving electrode 10, forms continuous print arc spark.
Further, described step-up transformer 1 adopts 220V, and 50Hz civil power inputs, and needs to bring the voltage up to more than 3000V by step-up transformer 1.
Further, described rectifier 2 is the full-wave rectification bridge be made up of four (or four groups) high-voltage diodes, and rectifier 2 has the breakdown reverse voltage up to more than 6000V, and during to meet system works, rectifier is not damaged by high electrical breakdown.
Further, described main capacitor 5 adopts the series-parallel pattern of multiple electric capacity to combine, to reach specific capacitance required for system; The palpus resistance being used for discharge prevention in parallel on each single capacity cell simultaneously, resistance selects the large valued resistor in more than 100M Europe.
Further, described boosting coupling transformer 6 levels have reliably connect the earth, stake resistance is less than 1 Europe.
Further, described sparking electrode 4 is one has certain surface to amass and the round smooth object of conducting electricity, and it and ground define one " over the ground equivalent capacity ".
Further, described electric arc receiving electrode 10 is a needlepoint type metallic conductor.
Principle of work of the present invention is: first, and alternating current rises to more than 3000V through step-up transformer, then passes through the full-wave rectification bridge be made up of four (or four groups) high-voltage diodes, charges to capacitor (C1).When electric potential difference between main capacitance two pole plates acquires a certain degree, the air at meeting breakdown point firearm place, and primary coil L1 forms a LC oscillation circuit.At this moment, due to LC vibration, the frequency electromagnetic waves of certain frequency can be produced.The equivalent capacity over the ground of sparking electrode C2 and secondary coil L2 also can form a LC oscillation circuit.When the LC oscillation frequency of primary return and secondary loop is equal, when igniter fire conducting, the electromagnetic major part that primary coil sends can be absorbed by secondary LC oscillation circuit.The electric potential difference on sparking electrode and ground is infinitely-great, the high-frequency alternating current that therefore can produce high voltage-small current inside the loop of secondary coil now discharge top can with near the object of ground connection release together with electric arc.Received by receiving electrode P, form continuous arcing spark, when experiment detects, formed continuous arcing spark can be utilized to carry out various experiment test.
Described detection carried out to lightning rod comprise:
Lightning rod is made when being changed by receiving electrode, lightning rod is positioned over the below of sparking electrode with one heart centered by the central shaft of sparking electrode, lightning rod is moved horizontally to the maximum distance that sparking electrode and lightning rod can discharge, detect lightning conductor protection angle with this, can arcing distance far away, reflect lightning conductor protection angle larger;
Needle point lightning rod 211 is had when receiving electrode being changed work, place discharge lightning rod ahead of time or large shielding angle lightning rod 212 in the place that the concentric circles 213 of sparking electrode 4 is equidistant simultaneously, just significant reaction can go out have needle point lightning rod performance when testing by comparison, the lightning rod that discharge performance is good will attract arc discharge more, otherwise then not have arc discharge (as shown in Figure 3); The performance of needle point lightning rod can be reflected by contrast further, lightning rod is tested more comprehensive, provide and test more reliably.
Obviously, the embodiment cited by the application is just in order to be described further cited example to principle of the present invention and structure, and any some improvement done according to principle design of the present invention all should belong to the scope that the present invention protects.
The invention has the advantages that:
This real the present invention and existing lightning rod method of testing contrast the advantage having following aspect:
1) the present invention supplements existing lightning rod method of testing one, uses continuous arcing to test to lightning rod the electric discharge further embodying lightning rod and protects institute's performance;
2) the present invention significantly can reflect the performances such as the degree of protection electric discharge angle of lightning rod;
3) the present invention more fully can reflect lightning rod in use procedure performance;
4) structure of the present invention is simple, and testing expense is low, is one more economical lightning rod proving installation circuit.
Claims (8)
1. a continuous arcing spark lightning rod experimental provision circuit, it is characterized in that: comprise step-up transformer, rectifier, lighter, sparking electrode, electric arc receiving electrode, main capacitor and boosting coupling transformer, be combined to form continuous arcing spark by step-up transformer, rectifier, lighter, sparking electrode, electric arc receiving electrode, main capacitor and boosting coupling transformer and form circuit; Wherein, the first polar curve circle of step-up transformer connects civil power, and secondary coil connects the input end of rectifier; Rectifier is connected after step-up transformer; Rectifier connects one end of main capacitor and lighter; Main capacitor is connected between two lines of rectifier, and rectifier is used for charging to main capacitor; Lighter one end connects rectifier anode and exports, i.e. main capacitor positive terminal; The other end connects a pin of the input end of the primary coil of boosting coupling transformer, and another input pin of the coupling transformer primary coil that simultaneously boosts connects the negative pole end of main capacitor, and boosting coupling transformer is the negative pole end of rectifier simultaneously; One end of elementary one end tie point firearm of boosting coupling transformer, the other end connects one end of capacitor; Electric arc receiving electrode is connected to the earth terminal of the earth and boosting coupling transformer.
2. continuous arcing spark lightning rod experimental provision circuit as claimed in claim 1, is characterized in that: described main capacitor and primary coil form a LC oscillation circuit; The equivalent capacity over the ground of sparking electrode and secondary coil also can form a LC oscillation circuit; When the LC oscillation frequency of primary return and secondary loop is equal, when igniter fire conducting, the electromagnetic major part that primary coil sends can be absorbed by secondary LC oscillation circuit; Now, because the electric potential difference on sparking electrode and ground is infinitely-great, the high-frequency alternating current that therefore can produce high voltage-small current inside the loop of secondary coil now discharge top can and near the object of ground connection release together with electric arc, electric arc is received by receiving electrode, formation continuous print arc spark.
3. continuous arcing spark lightning rod experimental provision circuit as claimed in claim 2, is characterized in that: described step-up transformer adopts the input of 220V, 50Hz civil power, needs to bring the voltage up to more than 3000V by step-up transformer.
4. continuous arcing spark lightning rod experimental provision circuit as claimed in claim 2, it is characterized in that: described rectifier is the full-wave rectification bridge be made up of four or four groups of high-voltage diodes, rectifier has the breakdown reverse voltage up to more than 6000V, and during to meet system works, rectifier is not damaged by high electrical breakdown.
5. continuous arcing spark lightning rod experimental provision circuit as claimed in claim 2, is characterized in that: described main capacitor adopts the series-parallel pattern of multiple electric capacity to combine, to reach specific capacitance required for system; The palpus resistance being used for discharge prevention in parallel on each single capacity cell simultaneously, resistance selects the large valued resistor in more than 100M Europe.
6. continuous arcing spark lightning rod experimental provision circuit as claimed in claim 2, is characterized in that: described boosting coupling transformer is secondary to be had and reliably connect the earth, and stake resistance is less than 1 Europe.
7. continuous arcing spark lightning rod experimental provision circuit as claimed in claim 2, is characterized in that: described sparking electrode is one has certain surface to amass and the round smooth object of conducting electricity, and it and ground define one " over the ground equivalent capacity ".
8. continuous arcing spark lightning rod experimental provision circuit as claimed in claim 2, is characterized in that: described electric arc receiving electrode is a needlepoint type metallic conductor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510510367.2A CN105182112A (en) | 2015-08-19 | 2015-08-19 | Circuit for continuous discharge arc lightning rod experiment device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510510367.2A CN105182112A (en) | 2015-08-19 | 2015-08-19 | Circuit for continuous discharge arc lightning rod experiment device |
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| CN105182112A true CN105182112A (en) | 2015-12-23 |
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| CN201510510367.2A Pending CN105182112A (en) | 2015-08-19 | 2015-08-19 | Circuit for continuous discharge arc lightning rod experiment device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110658427A (en) * | 2019-10-21 | 2020-01-07 | 南方电网科学研究院有限责任公司 | System and method for detecting liquid discharge characteristic |
| CN113049903A (en) * | 2021-03-26 | 2021-06-29 | 安徽得倍安检测技术有限公司 | Experimental device and method for testing lightning rod protection angle |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0651018A (en) * | 1992-06-03 | 1994-02-25 | Seiko Epson Corp | Method and device for testing semiconductor device |
| CN2658872Y (en) * | 2003-08-29 | 2004-11-24 | 程天强 | 0-2000 KV thunder and lightning demonstration device |
| CN1743861A (en) * | 2005-10-08 | 2006-03-08 | 中国电力科学研究院 | Optical fiber combined overhead earth wire |
| CN1904627A (en) * | 2006-08-04 | 2007-01-31 | 太原理工大学 | Lightning protector and detection instrument of device and its detection method |
| CN201413355Y (en) * | 2009-06-19 | 2010-02-24 | 成都兴业雷安电子有限公司 | Passive type direct lightning accounting device |
| CN201465377U (en) * | 2009-06-18 | 2010-05-12 | 上海市向明中学 | Device for testing protective effect of lightning conductor upon neighboring electrical appliances |
| CN202997557U (en) * | 2012-12-26 | 2013-06-12 | 宁夏电力公司吴忠供电局 | Controllable trigger device for protecting 110kV transformer neutral point |
| CN103293400A (en) * | 2012-02-22 | 2013-09-11 | 国家电网公司 | Lightning arrester direct current test system |
-
2015
- 2015-08-19 CN CN201510510367.2A patent/CN105182112A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0651018A (en) * | 1992-06-03 | 1994-02-25 | Seiko Epson Corp | Method and device for testing semiconductor device |
| CN2658872Y (en) * | 2003-08-29 | 2004-11-24 | 程天强 | 0-2000 KV thunder and lightning demonstration device |
| CN1743861A (en) * | 2005-10-08 | 2006-03-08 | 中国电力科学研究院 | Optical fiber combined overhead earth wire |
| CN1904627A (en) * | 2006-08-04 | 2007-01-31 | 太原理工大学 | Lightning protector and detection instrument of device and its detection method |
| CN201465377U (en) * | 2009-06-18 | 2010-05-12 | 上海市向明中学 | Device for testing protective effect of lightning conductor upon neighboring electrical appliances |
| CN201413355Y (en) * | 2009-06-19 | 2010-02-24 | 成都兴业雷安电子有限公司 | Passive type direct lightning accounting device |
| CN103293400A (en) * | 2012-02-22 | 2013-09-11 | 国家电网公司 | Lightning arrester direct current test system |
| CN202997557U (en) * | 2012-12-26 | 2013-06-12 | 宁夏电力公司吴忠供电局 | Controllable trigger device for protecting 110kV transformer neutral point |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110658427A (en) * | 2019-10-21 | 2020-01-07 | 南方电网科学研究院有限责任公司 | System and method for detecting liquid discharge characteristic |
| CN110658427B (en) * | 2019-10-21 | 2022-02-22 | 南方电网科学研究院有限责任公司 | System and method for detecting liquid discharge characteristic |
| CN113049903A (en) * | 2021-03-26 | 2021-06-29 | 安徽得倍安检测技术有限公司 | Experimental device and method for testing lightning rod protection angle |
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Address after: 412007 Tianyuan District, Hunan City, small and medium enterprises to promote Park, building A5 Applicant after: Hunan Pu Pu technology Limited by Share Ltd Address before: 412007 Tianyuan District, Hunan City, small and medium enterprises to promote Park, building A5 Applicant before: Hunan Zhongpu Lightning Co., Ltd. |
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Application publication date: 20151223 |
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