CN101232163B - Clearance lightning-proof protection method and apparatus thereof - Google Patents
Clearance lightning-proof protection method and apparatus thereof Download PDFInfo
- Publication number
- CN101232163B CN101232163B CN200810020581XA CN200810020581A CN101232163B CN 101232163 B CN101232163 B CN 101232163B CN 200810020581X A CN200810020581X A CN 200810020581XA CN 200810020581 A CN200810020581 A CN 200810020581A CN 101232163 B CN101232163 B CN 101232163B
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- arc
- striking
- insulator
- metal bar
- lightning
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- 238000000034 method Methods 0.000 title claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 64
- 229910052751 metal Inorganic materials 0.000 claims abstract description 64
- 239000012212 insulator Substances 0.000 claims abstract description 46
- 239000004020 conductor Substances 0.000 claims abstract description 9
- 238000009413 insulation Methods 0.000 claims description 44
- 230000000149 penetrating effect Effects 0.000 claims description 41
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 claims description 9
- 230000001681 protective effect Effects 0.000 claims description 7
- 230000004888 barrier function Effects 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 208000027418 Wounds and injury Diseases 0.000 description 3
- 208000014674 injury Diseases 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 206010020843 Hyperthermia Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000036031 hyperthermia Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Abstract
The invention relates to a gap lightning protection method and device thereof, which belongs to the field of lightning protection technology of power distribution circuit of power system. The method comprises following steps: arranging an arc-starting metal stick and a grounding arc-starting metal stick with an arc-starting pitch on an insulator; arranging the insulator on the grounding terminal of an arc-resisting isolator, so that the grounding arc-starting metal stick is electrically connected with the grounding terminal of the arc-resisting isolator; and is electrically connecting a puncture clamp with the arc-starting metal stick through an arc-starting insulating flexible conductor, so that a lightning overvoltage on an overhead insulating conductor breaks down the arc-starting pitch to start an arc during lightning and a subsequent flow power frequency arc is transmitted to the arc-starting stick and burnt. The invention has the advantages of low manufacture and usage cost, simple structure, reliable arc starting, no change in positions of the arc-resisting isolator and the puncture clamp on the original circuit, and no influence on the arc-resisting isolator and the puncture clamp by high temperature during discharge.
Description
Technical field
The present invention relates to a kind of aerial insulated cable line the be struck by lightning guard method and device thereof of disconnected clearance lightning-proof of preventing, belong to the shocking preventing technology field of electric power system distribution line.
Background technology
The distribution overhead transmission line of electric power system such as 10kV or 20kV electric pressure mostly adopts the insulated aerial lead.For preventing that thunder and lightning from striking off suspended insulated guide wire; as CN1238864C disclosed " being used to prevent the puncture clamp insulator of suspended insulated guide wire lightning-caused breaking "; employing arc resistance insulation; penetrating cable clamp and be connected insulating soft wire between arc resistance insulation and the penetrating cable clamp; penetrating cable clamp is installed in the insulating barrier of wearing out insulated conductor on the suspended insulated guide wire; penetrating cable clamp is electrically connected with lead; one end of insulating soft wire is installed on the penetrating cable clamp; the other end extremely is electrically connected with the high-tension electricity of arc resistance insulation; make arc resistance insulation identical with the current potential of penetrating cable clamp; when the thunder and lightning electrion; the arc root of the power frequency short circuit current electric arc that continues is fixed on the high-field electrode of arc resistance insulation and burns, and the protection suspended insulated guide wire avoids blowing.But this kind structure is that high-voltage arc is caused arc resistance insulation, and the arc root of afterflow power frequency arc is burnt on the high-field electrode of arc resistance insulation, easily causes the damage of arc resistance insulation, and influences the reliability of line work.CN1481057A disclosed " being used to prevent the are-tight puncture gold utensil of suspended insulated guide wire lightning-caused breaking "; be to adopt penetrating cable clamp; the ground connection arc electrode; are-tight electrode and insulating cover; the insulating barrier that penetrating cable clamp is worn out insulated conductor makes penetrating cable clamp be electrically connected with lead; are-tight electrode is electrically connected with penetrating cable clamp; the outside that insulating cover is fixed on penetrating cable clamp is used for insulation and limit arc; the earth terminal that the ground connection arc electrode is installed in line insulator is electrically connected; make when thunder and lightning takes place; discharge between penetrating cable clamp and the ground connection arc electrode; the afterflow power frequency arc is moved on the are-tight electrode burn, the protection suspended insulated guide wire avoids blowing.The are-tight puncture gold utensil of this kind structure discharges by ground connection arc electrode and are-tight electric discharge between electrodes distance when thunderbolt; because are-tight electrode is mounted on the penetrating cable clamp; and the ground connection arc electrode is installed on the line insulator; on the one hand; installation is work high above the ground; owing to can not guarantee are-tight electrode on the penetrating cable clamp and the striking spacing between the ground connection arc electrode on the line insulator; especially thunder and lightning weather wind and rain can make suspended insulated guide wire rock; and change the striking spacing, so reduced the reliability of lightning protection.On the other hand, because are-tight electrode is installed on the penetrating cable clamp, afterflow power frequency arc during thunderbolt is to burn on are-tight electrode, and the current strength of thunderbolt can reach the training of several Wan An, temperature can reach 20,000 degrees centigrade, because of are-tight electrode near suspended insulated guide wire, localized hyperthermia can influence the insulating barrier and the penetrating cable clamp of the suspended insulated guide wire of penetrating cable clamp periphery.
Summary of the invention
A kind of low cost, simple in structure is provided on the purpose of the present invention; do not change arc resistance insulation on original circuit and the position of penetrating cable clamp; high temperature during discharge can not influence arc resistance insulation and penetrating cable clamp, and the guard method of the reliable clearance lightning-proof of striking and device thereof.
The present invention is that the technical scheme that reaches above-mentioned is: a kind of guard method of clearance lightning-proof, it is characterized in that: the striking metal bar and the ground connection striking metal bar that will have the striking spacing are installed on the insulator, insulator is installed in the earth terminal of arc resistance insulation, and ground connection striking metal bar is electrically connected with the earth terminal of arc resistance insulation; The penetrating cable clamp that striking insulating soft wire will be installed on the suspended insulated guide wire is electrically connected with the striking metal bar, and during thunderbolt, the lightning overvoltage on the suspended insulated guide wire punctures striking spacing starting arc, the afterflow power frequency arc is moved on the striking metal bar burn.
Clearance lightning-proof protective device of the present invention; comprise arc resistance insulation; penetrating cable clamp and striking insulating soft wire; penetrating cable clamp penetrates the insulating barrier of suspended insulated guide wire and is connected with its inner electric conductor; it is characterized in that: the high-pressure side of described arc resistance insulation is electrically connected with suspended insulated guide wire; the earth terminal of arc resistance insulation is connected with insulator; striking metal bar and ground connection striking metal bar with striking spacing A are housed respectively on the insulator; ground connection striking metal bar is electrically connected with the earth terminal of arc resistance insulation, and the two ends of striking insulating soft wire are electrically connected with striking metal bar and penetrating cable clamp respectively.
The present invention connects an insulator at the earth terminal of arc resistance insulation; have striking metal bar and ground connection striking metal bar on the insulator; ground connection striking metal bar is electrically connected with the earth terminal of arc resistance insulation; the striking insulating soft wire that is installed on the penetrating cable clamp is connected on the striking metal bar; when therefore being struck by lightning; can with the thunderbolt arc energy in the extremely short time from suspended insulated guide wire through the puncture wire clamp; the striking insulating soft wire is transferred on the striking metal bar; puncture striking spacing starting arc; by the ground connection termination the earth of arc resistance insulation, thereby protection suspended insulated guide wire and arc resistance insulation are injury-free.The present invention is installed in striking metal bar and ground connection striking metal bar on the insulator, and insulator mainly bears own wt, so endurance requires more conventional arc resistance insulation much lower,, not only reduced manufacturing cost, nor can destroy the circuit insulating.The present invention is because insulator, striking metal bar and ground connection striking metal bar connect as one structure, and is simple in structure, can not omit during construction and installation, can improve efficiency of construction, even if after high temperature damages, also only needs to remove to change, and use cost is low.The present invention is owing to arc resistance insulation and the penetrating cable clamp installation site that do not change on original insulated overhead line, only insulator is installed in the earth terminal of the sub-bottom of arc resistance insulation, and the striking insulating soft wire is connected on penetrating cable clamp and the striking metal bar, the online transformation that very convenient existing insulated overhead line is anti-lightning strike has usability and economy preferably.The present invention adopts the striking insulating soft wire to be connected with penetrating cable clamp with the striking metal bar; not only the striking metal bar moves to the bottom of arc resistance insulation; having increased discharge and having burnt a little distance with penetrating cable clamp and aerial insulated wire; high temperature during discharge can not influence penetrating cable clamp and aerial insulated wire; and when suspended insulated guide wire is subjected to external force and rocks; and the insulation striking flexible conductor that plays interconnect function is not pind down, and makes the puncture part of penetrating cable clamp inside conductor can be not impaired, guarantees the reliability of lightning protection.Striking spacing of the present invention is by being installed in the decision of striking metal bar on the insulator and the striking spacing between the ground connection striking metal bar, owing to can not be subjected to the influence of other external force, and guarantee the reliability of striking.
Description of drawings
Below in conjunction with accompanying drawing embodiments of the invention are described in further detail.
Fig. 1 is a structural representation of the present invention.
Wherein: the 1-suspended insulated guide wire, 2-arc resistance insulation, 3-is horizontal single, 4-ground connection striking metal bar, 5-insulator, 6-striking metal bar, 7-striking insulating soft wire, 8-penetrating cable clamp.
Embodiment
The guard method of clearance lightning-proof of the present invention; the striking metal bar 6 and the ground connection striking metal bar 4 that will have striking spacing A are installed on the insulator 5; insulator 5 is installed in the earth terminal of arc resistance insulation 2, and ground connection striking metal bar 4 is electrically connected with the earth terminal of arc resistance insulation 2.The penetrating cable clamp 8 that striking insulating soft wire 7 will be installed on the suspended insulated guide wire 1 is electrically connected with striking metal bar 6; make both equipotentials; during thunderbolt; lightning overvoltage is through suspended insulated guide wire 1; penetrating cable clamp 8 and striking insulating soft wire 7 are to striking metal bar 6; Lightning Over-voltage on the suspended insulated guide wire punctures striking spacing A starting arc; the afterflow power frequency arc is moved on the striking metal bar 6 to be burnt; and cause the earth by the earth terminal of arc resistance insulation 2; the thunderbolt arc energy was shifted from suspended insulated guide wire in the extremely short time, thereby the protection suspended insulated guide wire is injury-free.
See shown in Figure 1; clearance lightning-proof protective device of the present invention; comprise arc resistance insulation 2; penetrating cable clamp 8 and striking insulating soft wire 7; penetrating cable clamp 8 is installed on the suspended insulated guide wire 1; and penetrate the insulating barrier of suspended insulated guide wire 1; penetrating cable clamp 8 is connected with the electric conductor of suspended insulated guide wire 1; the high-pressure side of arc resistance insulation 2 is electrically connected with suspended insulated guide wire 1; the earth terminal of arc resistance insulation 2 is connected with insulator 5; this insulator 5 is connected the earth terminal of arc resistance insulation 2 by horizontal stroke list 3 and securing member; for reducing the volume of insulator 5; the outer rim of this insulator 5 is provided with 3～6 full skirts that increase creepage distance; striking metal bar 6 and ground connection striking metal bar 4 also are housed respectively on the insulator 5; and be positioned at the rightabout of suspended insulated guide wire 1; ground connection striking metal bar 4 is electrically connected with the earth terminal of arc resistance insulation 2; can make insulator 5 interior conducting metals draw insulated metal rod 4 with ground connection is connected; the two ends of striking insulating soft wire 7 are electrically connected with striking metal bar 6 and penetrating cable clamp 8 respectively; overvoltage during with thunderbolt is guided on the striking metal bar 6 through striking insulating soft wire 7 from suspended insulated guide wire 1; has striking spacing A between striking metal bar 6 and the ground connection striking metal bar 4; A is between 100～250mm for this striking spacing; when arc energy punctures striking spacing A starting arc; the afterflow power frequency arc is moved on the striking metal bar 6 to be burnt; earth terminal by arc resistance insulation 2 inserts the earth, protection suspended insulated guide wire 1; arc resistance insulation 2 and penetrating cable clamp 8 are injury-free.
The present invention is for to control striking spacing A effectively at different electric pressures, the striking metal bar 6 that is installed on the insulator 5 can be along insulator 5 axial adjustment, the coupling part of this striking metal bar 6 is provided with via hole, and the coupling part of insulator 5 is provided with screw thread, locking nut is connected striking metal bar 6 on the insulator 5, and is provided with the adjustment pad between insulator 5 and the striking metal bar 6.The ground connection striking metal bar 4 that the present invention is installed on the insulator 5 also can be along insulator 5 axial adjustment, the coupling part of same this ground connection striking metal bar 4 is provided with via hole, the coupling part of insulator 5 is provided with screw thread, locking nut is connected ground connection striking metal bar 4 on the insulator 5, is provided with the adjustment pad between insulator 5 and ground connection striking metal bar 4.
Claims (6)
1. the guard method of a clearance lightning-proof, it is characterized in that: the striking metal bar and the ground connection striking metal bar that will have the striking spacing are installed on the insulator, insulator is installed in the earth terminal of arc resistance insulation, and ground connection striking metal bar is electrically connected with the earth terminal of arc resistance insulation; The penetrating cable clamp that striking insulating soft wire will be installed on the suspended insulated guide wire is electrically connected with the striking metal bar, and during thunderbolt, the lightning overvoltage on the suspended insulated guide wire punctures striking spacing starting arc, the afterflow power frequency arc is moved on the striking metal bar burn.
2. clearance lightning-proof protective device; comprise arc resistance insulation (2); penetrating cable clamp (8) and striking insulating soft wire (7); penetrating cable clamp (8) penetrates the insulating barrier of suspended insulated guide wire (1) and is connected with its inner electric conductor; it is characterized in that: the high-pressure side of described arc resistance insulation (2) is electrically connected with suspended insulated guide wire (1); the earth terminal of arc resistance insulation (2) is connected with insulator (5); striking metal bar (6) and ground connection striking metal bar (4) with striking spacing A are housed respectively on the insulator (5); ground connection striking metal bar (4) is electrically connected with the earth terminal of arc resistance insulation (2), and the two ends of striking insulating soft wire (7) are electrically connected with striking metal bar (6) and penetrating cable clamp (8) respectively.
3. clearance lightning-proof protective device according to claim 2 is characterized in that: described insulator (5) is connected the earth terminal of arc resistance insulation (2) by horizontal single (3) and securing member.
4. according to claim 2 or 3 described clearance lightning-proof protective devices, it is characterized in that: the outer rim of described insulator (5) is provided with 3～6 full skirts that increase creepage distance.
5. clearance lightning-proof protective device according to claim 2 is characterized in that: the described striking metal bar (6) that is installed on the insulator (5) can be along insulator (5) axial adjustment.
6. clearance lightning-proof protective device according to claim 2 is characterized in that: the described ground connection striking metal bar (4) that is installed on the insulator (5) can be along insulator (5) axial adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810020581XA CN101232163B (en) | 2008-01-30 | 2008-01-30 | Clearance lightning-proof protection method and apparatus thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810020581XA CN101232163B (en) | 2008-01-30 | 2008-01-30 | Clearance lightning-proof protection method and apparatus thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101232163A CN101232163A (en) | 2008-07-30 |
| CN101232163B true CN101232163B (en) | 2010-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810020581XA Expired - Fee Related CN101232163B (en) | 2008-01-30 | 2008-01-30 | Clearance lightning-proof protection method and apparatus thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN101232163B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104319756B (en) * | 2014-11-11 | 2017-05-24 | 苏州九云丰电子科技有限公司 | Novel gap lightning protection device |
| CN113328340A (en) * | 2021-04-23 | 2021-08-31 | 广西雷闪电气科技有限公司 | Liquid recoil arc extinguishing lightning protection method |
| CN114498305B (en) * | 2021-12-28 | 2023-03-21 | 深圳供电局有限公司 | Overvoltage protection device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5663863A (en) * | 1991-03-27 | 1997-09-02 | The Tokyo Electric Power Co., Inc. | Line arrester |
| FR2825525A1 (en) * | 2001-06-01 | 2002-12-06 | Sediver | Lightning arrester for overhead line includes hinged link between varistor and spark gap structure allowing line movement |
| CN1290241C (en) * | 2003-03-10 | 2006-12-13 | 中国电力科学研究院 | Arc tight punctured anchor clamp for preventing broken wire of aerial insulated conductor caused by lightning strike |
| CN2847475Y (en) * | 2005-09-02 | 2006-12-13 | 中国电力科学研究院 | Metal oxide lightning arrester with external series gap for protective insulation conductor |
| CN201146358Y (en) * | 2008-01-30 | 2008-11-05 | 江苏省电力公司常州供电公司 | Clearance lightning-proof protection device |
-
2008
- 2008-01-30 CN CN200810020581XA patent/CN101232163B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5663863A (en) * | 1991-03-27 | 1997-09-02 | The Tokyo Electric Power Co., Inc. | Line arrester |
| FR2825525A1 (en) * | 2001-06-01 | 2002-12-06 | Sediver | Lightning arrester for overhead line includes hinged link between varistor and spark gap structure allowing line movement |
| CN1290241C (en) * | 2003-03-10 | 2006-12-13 | 中国电力科学研究院 | Arc tight punctured anchor clamp for preventing broken wire of aerial insulated conductor caused by lightning strike |
| CN2847475Y (en) * | 2005-09-02 | 2006-12-13 | 中国电力科学研究院 | Metal oxide lightning arrester with external series gap for protective insulation conductor |
| CN201146358Y (en) * | 2008-01-30 | 2008-11-05 | 江苏省电力公司常州供电公司 | Clearance lightning-proof protection device |
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| Publication number | Publication date |
|---|---|
| CN101232163A (en) | 2008-07-30 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU ELECTRIC POWER CO. STATE ELECTRIC NET CROP Effective date: 20120928 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120928 Address after: 213003 No. 27, West Front Street, Changzhou, Jiangsu Patentee after: Changzhou Power Supply Co, Jiangsu Provincial Power Corp. Patentee after: Jiangsu Electric Power Company Patentee after: State Grid Corporation of China Address before: 213003 No. 27, West Front Street, Changzhou, Jiangsu Patentee before: Changzhou Power Supply Co, Jiangsu Provincial Power Corp. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100602 Termination date: 20170130 |
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| CF01 | Termination of patent right due to non-payment of annual fee |