CN203423464U - Lightning protection device for double-circuit power distribution line - Google Patents
Lightning protection device for double-circuit power distribution line Download PDFInfo
- Publication number
- CN203423464U CN203423464U CN201320484296.XU CN201320484296U CN203423464U CN 203423464 U CN203423464 U CN 203423464U CN 201320484296 U CN201320484296 U CN 201320484296U CN 203423464 U CN203423464 U CN 203423464U
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- Prior art keywords
- distribution line
- protection device
- lightning protection
- ground wire
- double
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- Expired - Fee Related
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Abstract
The utility model provides a lightning protection device for a double-circuit power distribution line. The lightning protection device comprises an overhead ground line (2) and a coupling ground line (3). The overhead ground line (2) is fixed on a power transmission tower above an upper cross arm (7) on the double-circuit power distribution line by an upper hold hoop (1). The coupling ground line (3) is fixed on a power transmission tower below a lower cross arm (8) on the double-circuit power distribution line by a lower hold hoop (6). Both the overhead ground line and the coupling ground line are provided with wire clamps (4) which are connected with a ground wire (5) and grounded. The lightning protection device provided by the utility model can effectively reduce the inductive current component on the double-circuit power distribution line in the case of lightening, and has the advantages of high protection capacity for the line, convenient installation, stability, reliability and long service life.
Description
Technical field
The utility model relates to a kind of lightning protection device for double back distribution line.
Background technology
The most easily there is damage to crops caused by thunder accident in China's main power distribution network 6～35kV electrical network, the distribution line overwhelming majority is without earth-wire protection, and self insulation level is lower, is the main cause that easily suffers Lightning disservice.Wherein divide again direct lightning strike harm and two kinds of situations of induction thunder harm, a kind of is the direct lightning strike overvoltage of being struck by lightning and causing in circuit; Another kind is near thunderbolt circuit, due to the caused lightning induced voltage of electromagnetic induction.Because low-voltage circuit insulation level is low, the thunderbolt number of times being caused by lightning induced voltage accounts for the overwhelming majority.
In distribution line, seldom adopt lightning protection measures protection at present, so lightning hazards is comparatively serious.Install overhead ground wire and coupling ground wire additional and can effectively reduce the induced current component on double back distribution line while being struck by lightning, circuit is had to stronger protective capability, reduce the situation that circuit trips because of induction lightening pressure.
Utility model content
Technical problem to be solved in the utility model, is just to provide a kind of lightning protection device for double back distribution line, and realization effectively reduces the induced current component on double back distribution line while being struck by lightning, reaches the object that enhancing line thunder protection guarantor effect is protected.
Solve the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of lightning protection device for double back distribution line, it is characterized in that: comprise overhead ground wire 2 and coupling ground wire 3, described overhead ground wire 2 is fixed on the transmission tower of cross-arm 7 tops on double back distribution line by upper anchor ear 1, described coupling ground wire 3 is fixed on the transmission tower of cross-arm 8 belows under double back distribution line by lower anchor ear 6, overhead ground wire and coupling ground wire are equipped with wire clamp 4, ground connection after being connected with earth lead 5 by wire clamp 4.
The vertical range of described upper anchor ear and upper cross-arm is 50～80mm; The vertical range of described lower anchor ear and lower cross-arm is 60～100mm.
Described overhead ground wire is GJ-35 galvanized strand wires; Described coupling ground wire is GJ-35 galvanized strand wires.
Described upper anchor ear model is D160; Described lower anchor ear model is D220.
Described wire clamp model is suspension clamp; Described earth lead is copper plated steel twisted wire.
Accompanying drawing explanation
Accompanying drawing is that the application example of the utility model on double back distribution line electric pole executed schematic diagram.
In figure: 1, upper anchor ear, 2, overhead ground wire, 3, coupling ground wire, 4, wire clamp, 5, earth lead, 6, lower anchor ear, 7, upper cross-arm, 8, lower cross-arm.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in drawings, lightning protection device embodiment for double back distribution line of the present utility model, comprise overhead ground wire 2 and coupling ground wire 3, overhead ground wire 2 is fixed on the transmission tower of cross-arm 7 tops on double back distribution line by upper anchor ear 1, coupling ground wire 3 is fixed on the transmission tower of cross-arm 8 belows under double back distribution line by lower anchor ear 6, overhead ground wire 2 and coupling ground wire 3 are equipped with wire clamp 4, by wire clamp, are connected ground connection with earth lead 5.
Described overhead ground wire 2 is GJ-35 galvanized strand wires; Described coupling ground wire 3 is GJ-35 galvanized strand wires.
Described upper anchor ear 1 model is D160; Described lower anchor ear 6 models are D220.
Described wire clamp 4 models are suspension clamp; Described earth lead 5 is copper plated steel twisted wire.
Described upper anchor ear 1 is 80～100mm with the vertical range of upper cross-arm 7; Described lower anchor ear 6 is 60～80mm with the vertical range of lower cross-arm 8.
Claims (5)
1. the lightning protection device for double back distribution line, it is characterized in that: comprise overhead ground wire (2) and coupling ground wire (3), described overhead ground wire (2) is fixed on the transmission tower of cross-arm on double back distribution line (7) top by upper anchor ear (1), described coupling ground wire (3) is fixed on the transmission tower of cross-arm under double back distribution line (8) below by lower anchor ear (6), overhead ground wire and coupling ground wire are equipped with wire clamp (4), ground connection after being connected with earth lead (5) by wire clamp (4).
2. the lightning protection device for double back distribution line according to claim 1, is characterized in that: described overhead ground wire (2) is GJ-35 galvanized strand wires; Described coupling ground wire (3) is GJ-35 galvanized strand wires.
3. the lightning protection device for double back distribution line according to claim 1, is characterized in that: described upper anchor ear (1) model is D160; Described lower anchor ear (6) model is D220.
4. the lightning protection device for double back distribution line according to claim 1, is characterized in that: described wire clamp (4) model is suspension clamp; Described earth lead (5) is copper plated steel twisted wire.
5. the lightning protection device for double back distribution line according to claim 1, is characterized in that: described upper anchor ear (1) is 80～100mm with the vertical range of upper cross-arm (7); Described lower anchor ear (6) is 60～80mm with the vertical range of lower cross-arm (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320484296.XU CN203423464U (en) | 2013-08-08 | 2013-08-08 | Lightning protection device for double-circuit power distribution line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320484296.XU CN203423464U (en) | 2013-08-08 | 2013-08-08 | Lightning protection device for double-circuit power distribution line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203423464U true CN203423464U (en) | 2014-02-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320484296.XU Expired - Fee Related CN203423464U (en) | 2013-08-08 | 2013-08-08 | Lightning protection device for double-circuit power distribution line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203423464U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347042A (en) * | 2018-09-30 | 2019-02-15 | 国网浙江平阳县供电有限责任公司 | The mounting structure and installation method of ground wire are protected on a kind of straight line pole |
| CN109473936A (en) * | 2018-09-30 | 2019-03-15 | 国网浙江平阳县供电有限责任公司 | The mounting structure and installation method of ground wire are protected on a kind of terminal pole |
| CN109510152A (en) * | 2018-09-30 | 2019-03-22 | 国网浙江平阳县供电有限责任公司 | A kind of mounting structure and installation method for protecting ground wire on angle pole |
| CN109577730A (en) * | 2018-09-30 | 2019-04-05 | 国网浙江平阳县供电有限责任公司 | A kind of ground structure for protecting ground wire |
| CN110221180A (en) * | 2019-07-01 | 2019-09-10 | 国网四川省电力公司电力科学研究院 | A kind of identification of 10kV distribution line lightning fault and localization method |
| CN110863687A (en) * | 2019-11-28 | 2020-03-06 | 国网江苏省电力有限公司南京供电分公司 | Be applied to electric power tower and install communication antenna's multi-functional fastener of presenting additional |
-
2013
- 2013-08-08 CN CN201320484296.XU patent/CN203423464U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109347042A (en) * | 2018-09-30 | 2019-02-15 | 国网浙江平阳县供电有限责任公司 | The mounting structure and installation method of ground wire are protected on a kind of straight line pole |
| CN109473936A (en) * | 2018-09-30 | 2019-03-15 | 国网浙江平阳县供电有限责任公司 | The mounting structure and installation method of ground wire are protected on a kind of terminal pole |
| CN109510152A (en) * | 2018-09-30 | 2019-03-22 | 国网浙江平阳县供电有限责任公司 | A kind of mounting structure and installation method for protecting ground wire on angle pole |
| CN109577730A (en) * | 2018-09-30 | 2019-04-05 | 国网浙江平阳县供电有限责任公司 | A kind of ground structure for protecting ground wire |
| CN110221180A (en) * | 2019-07-01 | 2019-09-10 | 国网四川省电力公司电力科学研究院 | A kind of identification of 10kV distribution line lightning fault and localization method |
| CN110221180B (en) * | 2019-07-01 | 2021-07-06 | 国网四川省电力公司电力科学研究院 | 10kV distribution line lightning stroke fault recognition and positioning method |
| CN110863687A (en) * | 2019-11-28 | 2020-03-06 | 国网江苏省电力有限公司南京供电分公司 | Be applied to electric power tower and install communication antenna's multi-functional fastener of presenting additional |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |