CN108711684B - Electric power tower sharing system - Google Patents
Electric power tower sharing system Download PDFInfo
- Publication number
- CN108711684B CN108711684B CN201810480402.4A CN201810480402A CN108711684B CN 108711684 B CN108711684 B CN 108711684B CN 201810480402 A CN201810480402 A CN 201810480402A CN 108711684 B CN108711684 B CN 108711684B
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- China
- Prior art keywords
- tower
- lightning
- communication
- base station
- grounding
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
- H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T19/00—Devices providing for corona discharge
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G13/00—Installations of lightning conductors; Fastening thereof to supporting structure
- H02G13/40—Connection to earth
Abstract
The invention provides a power tower sharing system which comprises a power tower device and a communication device. Because the lightning conductor on the shaft tower body and the lightning receptor at the top of the base station machine room are both connected to the shaft tower grounding network, when the shaft tower body and the base station machine room are struck by lightning, the lightning conductor and the lightning receptor receive the current generated by the lightning stroke and transmit the lightning stroke current to the shaft tower grounding network, and then the lightning stroke current is transmitted to the ground through the grounding setting of the shaft tower grounding network. And because the lightning conductor and the lightning receptor are not connected to the communication grounding network and an electric insulating layer is arranged between the tower grounding network and the communication grounding network, electrical isolation is generated between the tower grounding network and the communication grounding network, lightning strike current received by the tower grounding network cannot be transmitted to the base station machine room and further cannot be transmitted to weak current equipment in the base station machine room, so that the purpose of protecting the weak current equipment is achieved. The power tower sharing system provided by the invention has the advantages of simple structure, higher current conduction efficiency and stronger implementation.
Description
Technical Field
The invention relates to the technical field of electric power, in particular to an electric power tower sharing system.
Background
The sharing technology has been advanced to the aspects of our lives, such as sharing a bicycle, sharing an automobile, sharing a charger baby, sharing an umbrella and the like, and brings great convenience to our lives. With the rapid development of the sharing technology, the power tower sharing technology is gradually paid attention.
Compared with the common pole tower, the electric pole tower has the characteristics of electrification in operation, complex and various tower body structures, strong electromagnetic interference, high lightning stroke risk and the like, so that a plurality of problems exist in the sharing development of the electric pole tower. More facility equipment needs to be additionally installed in the sharing of the electric power tower, and the additionally installed facility equipment is mostly weak current equipment, such as primary electric power equipment of a transformer, a mutual inductor, a lightning arrester and the like. In the thunder and lightning weather, the potential on the grounding grid of the electric power tower is raised in the process that the fault current generated by the lightning stroke flows into the weak current equipment. When a higher voltage is formed, the low-current equipment connected to the grounding grid of the power tower is subjected to back-strike discharge. The overvoltage tolerance capability of the weak current equipment is far less than the thousands of volts generated by the power tower and the grounding network thereof under the condition of lightning stroke, so that the weak current equipment is easy to damage under the action of the lightning stroke. In addition, transient electromagnetic pulses can be generated in the lightning stroke process, secondary cables leading to weak current equipment from the antenna installation position can generate induced overvoltage under the action of the transient electromagnetic pulses, and the amplitude of the induced overvoltage can reach thousands of volts. Voltages of several thousand volts can also cause damage to weak electrical equipment.
Therefore, lightning stroke should be prevented firstly in the sharing development of the power tower, and then the safe operation of the weak current equipment is ensured.
Disclosure of Invention
The invention provides a power tower sharing system, which aims to solve the problem that weak current equipment is easy to be damaged by lightning in the existing power tower sharing.
The invention provides a power tower sharing system, which comprises: an electric power tower device and a communication device;
the electric power tower device comprises a tower body and a tower grounding grid which are connected, and the tower grounding grid is grounded;
the top end of the tower body is provided with a lightning conductor and a communication antenna; the lightning conductor is connected to the tower grounding network through the tower body; the communication antenna is connected to the communication device through a communication cable;
the communication device comprises a base station machine room, a lightning receptor positioned at the top of the base station machine room and a communication grounding network electrically connected with equipment in the base station machine room; the lightning receptor is connected to the tower grounding network, and the equipment in the base station room is grounded through the communication grounding network;
and an electric insulating layer is arranged between the tower grounding grid and the communication grounding grid.
Preferably, along the erection direction of the communication cable, a plurality of insulators are further arranged on the tower body, and the communication cable is arranged on the insulators.
Preferably, the lightning receptor comprises a lightning receiving net and a lightning receiving rod which are connected, and the lightning receiving rod is located at the corner of the top of the base station room.
Preferably, the electrically insulating layer is arc-shaped.
Preferably, the electrical insulation layer comprises a phenolic resin electrical insulation layer, an epoxy resin electrical insulation layer, a silicone resin electrical insulation layer and/or a fluororesin electrical insulation layer.
Preferably, the base station room internal device includes a plurality of weak current devices, and each of the weak current devices is electrically connected to the communication antenna and the communication grounding grid, respectively.
Preferably, the lightning receptor is electrically connected to the tower grounding grid through a grounding down conductor.
The technical scheme provided by the embodiment of the invention can have the following beneficial effects:
the embodiment of the invention provides a power tower sharing system which comprises a power tower device and a communication device. The electric power tower device comprises a tower body and a tower grounding grid which are connected, and the tower grounding grid is grounded. The top end of the tower body is provided with a lightning conductor and a communication antenna; the lightning conductor is connected to the tower grounding network through the tower body; the communication antenna is electrically connected to the communication device through the communication cable; the communication device comprises a base station machine room, a lightning receptor positioned at the top of the base station machine room and a communication grounding network electrically connected with internal equipment of the base station machine room; the lightning receptor is connected to a tower grounding grid, and equipment in the base station machine room is grounded through a communication grounding grid; an electric insulating layer is arranged between the tower grounding grid and the communication grounding grid. Because the lightning conductor on the shaft tower body and the lightning arrester at the top of the base station machine room are both connected to the shaft tower grounding grid, when the shaft tower body and the base station machine room are struck by lightning, the lightning conductor and the lightning arrester receive the current generated by the lightning stroke and transmit the lightning stroke current to the shaft tower grounding grid, and then the lightning stroke current is transmitted to the ground through the grounding setting of the shaft tower grounding grid. And because the lightning conductor and the lightning receptor are not connected to the communication grounding network and an electric insulating layer is arranged between the tower grounding network and the communication grounding network, electrical isolation is generated between the tower grounding network and the communication grounding network, lightning strike current received by the tower grounding network cannot be transmitted to the base station machine room and further cannot be transmitted to weak current equipment in the base station machine room, so that the purpose of protecting the weak current equipment is achieved. The power tower sharing system provided by the embodiment of the invention has the advantages of simple structure, higher current conduction efficiency and stronger implementation.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
In order to more clearly explain the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.
Fig. 1 is a schematic structural diagram of a power tower sharing system according to an embodiment of the present invention;
the symbols represent:
01-electric power tower device, 02-communication device, 1-tower body, 2-tower grounding grid, 3-lightning conductor, 4-communication antenna, 5-communication cable, 6-base station room, 7-lightning receptor, 71-lightning receptor, 72-lightning receptor, 8-communication grounding grid, 9-electric insulating layer, 10-insulator, 11-weak current equipment and 12-grounding down lead.
Detailed Description
Referring to fig. 1, fig. 1 shows a schematic structural diagram of a power tower sharing system according to an embodiment of the present invention. As can be seen from the attached drawings, the power tower sharing system provided by the embodiment of the invention includes a power tower device 01 and a communication device 02. The electric power tower device 01 is a device for electric power transmission, the communication device 02 is a machine room for placing mobile base station equipment, and weak current equipment 11 such as wireless base station equipment, transmission equipment and power supply equipment are arranged in the machine room.
Specifically, the electric power tower device 01 includes a tower body 1 and a tower grounding grid 2. The pole tower body 1 is a component for erecting a power transmission line. The tower grounding grid 2 is a net structure formed by a plurality of metal grounding poles of a tower buried at a certain depth underground and a plurality of metal grounding poles connected by conductors, and is mainly used for leading current into the ground. In order to lead the tower grounding grid 2 into the ground through the tower body 1, the tower body 1 is connected with the tower grounding grid 2, and the tower grounding grid 2 is grounded.
Further, the top end of the tower body 1 is provided with a lightning conductor 3 and a communication antenna 4. The lightning conductor 3 is usually made of a metal material such as iron or copper, and the top end thereof is connected to a lightning rod. The lightning conductor 3 is connected with the metal material in the tower body 1, and therefore the lightning conductor 3, the tower body 1 and the tower grounding grid 2 are sequentially connected. In a thunderstorm season, lightning current generated by lightning striking the tower body 1 by the lightning conductor 3 is led into the ground through the tower body 1 and the tower grounding grid 2. The communication antenna 4 is a line for realizing data transmission. To enable data transmission between the power tower apparatus 01 and the communication apparatus 02, the communication antenna 4 is connected to the communication apparatus 02 through the communication cable 5 and to the weak current equipment 11 inside the communication apparatus 02. In addition, along the erection direction of the communication cable 5, a plurality of insulators 10 are further arranged on the tower body 1, and the communication cable 5 is arranged on the insulators 10. The insulator 10 is an insulator having an electrical insulating function. When the shaft tower body 1 is struck by lightning, under the electric insulation effect of the insulator 10, the communication cable 5 and the shaft tower body 1 can be effectively isolated, and then the lightning current flowing through the shaft tower body 1 is reduced to counter attack of the communication cable 5 and the internal risk of high voltage induction, so that normal communication is ensured.
The communication device 02 includes a base station room 6, a lightning receptor 7, and a communication ground network 8. The lightning receptor 7 is located on top of the base station room 6 and functions substantially similarly to the lightning conductor 3. In an embodiment of the invention, the lightning receptor 7 comprises a lightning receptor net 71 and a lightning receptor rod 72 connected. The lightning receiving net 71 is a net-shaped metal material arranged on the top of the base station machine room 6. The lightning rod 72 is a metal rod arranged at the corner of the top of the base station room 6, and functions similar to a lightning rod. Lightning arrester 7 is connected with shaft tower ground net 2 to when base station computer lab 6 received the thunderbolt, the thunderbolt electric current that the thunderbolt produced transmits to shaft tower ground net 2 through lightning arrester 7, and then leads to the ground through shaft tower ground net 2. Further, because the lightning current generated by lightning strike has a large current value, in the embodiment of the present invention, the lightning receptor 7 transmits the lightning current to the tower grounding grid 2 through the grounding down conductor 12. The communication grounding grid 8 is located below the base station room 6, and the communication grounding grid 8 is grounded.
Further, a plurality of weak current devices 11, such as control devices, transmission devices, and power supply devices, are disposed in the base station room 6. To realize communication between the power tower apparatus 01 and the plurality of weak current devices 11, the communication antennas 4 are connected to the plurality of weak current devices 11 through the communication cables 5, respectively. During the use of the weak current device 11, an over-current or over-voltage phenomenon may occur, which may cause the weak current device 11 to be damaged to some extent. To prevent the weak-current devices 11 from being damaged by overcurrent or overvoltage, the weak-current devices 11 are also connected to the communication ground network 8 in order to conduct the overcurrent or overvoltage to the ground via the communication ground network 8 which is grounded.
In the power tower sharing system provided by the embodiment of the invention, the grounding flat steel is not arranged between the tower grounding grid 2 and the communication grounding grid 8, and the tower grounding grid 2 and the communication grounding grid 8 are electrically isolated by the electric insulating layer 9. Therefore, the stronger lightning current generated by the tower grounding network 2 receiving the lightning stroke is separated from the weaker current generated by the communication grounding network 8 receiving the weak current equipment 11, namely, the strong current system grounding and the weak current system grounding are electrically isolated. Further, on the premise of ensuring the electrical isolation strength between the tower grounding grid 2 and the communication grounding grid 8, in order to reduce the usage amount of the electrical insulation layer 9, the electrical insulation layer 9 is arc-shaped, that is, the arc-shaped electrical insulation layer 9 is arranged on the periphery of the tower body 1 and the periphery of the base station room 6. In the power tower sharing system provided by the embodiment of the invention, the electrical insulation layer 9 includes a phenolic resin electrical insulation layer, an epoxy resin electrical insulation layer, a silicone resin electrical insulation layer and/or a fluororesin electrical insulation layer, and the electrical insulation effect of the electrical insulation layer 9 is determined according to the selected material.
In the power tower sharing system provided by the embodiment of the invention, the lightning conductor 3 on the tower body 1 and the lightning receptor 7 at the top of the base station machine room 6 are both connected to the tower grounding network 2, so that when the tower body 1 and the base station machine room 6 are struck by lightning, the lightning conductor 3 and the lightning receptor 7 receive lightning strike current generated by the lightning strike and transmit the lightning strike current to the tower grounding network 2, and further transmit the lightning strike current to the ground through the grounding arrangement of the tower grounding network 2. And because neither the lightning conductor 3 nor the lightning receptor 7 is connected to the communication grounding grid 8, and the weak current equipment 11 in the base station room 6 is connected to the communication grounding grid 8, the lightning current received by the lightning receptor 7 is not transmitted to the communication grounding grid 8. The lightning conductor 3 and the lightning receptor 7 are connected to the tower grounding network 2, the weak current equipment 11 in the base station room 6 is connected to the communication grounding network 8, lightning current generated by lightning stroke and weak current generated by the weak current equipment 11 are respectively introduced into different grounding networks, and electric isolation between grounding of a strong current system and grounding of a weak current system is further achieved. In addition, because the electric insulation layer is arranged between the tower grounding grid and the communication grounding grid, the tower grounding grid and the communication grounding grid are further electrically isolated, lightning strike current received by the tower grounding grid cannot be transmitted to the base station machine room, and further cannot be transmitted to weak current equipment in the base station machine room, so that the purpose of protecting the weak current equipment is achieved. The power tower sharing system provided by the embodiment of the invention has the advantages of simple structure, higher current conduction efficiency and stronger implementation.
Those skilled in the art will readily appreciate that the techniques of the embodiments of the present invention may be implemented as software plus a required general purpose hardware platform. Based on such understanding, the technical solutions in the embodiments of the present invention may be essentially or partially implemented in the form of a software product, which may be stored in a storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments or some parts of the embodiments.
The above-described embodiments of the present invention should not be construed as limiting the scope of the present invention.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It will be understood that the invention is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (7)
1. An electric power tower sharing system, comprising: the system comprises a power tower device (01) and a communication device (02);
the electric power tower device (01) comprises a tower body (1) and a tower grounding grid (2) which are connected, and the tower grounding grid (2) is grounded;
the top end of the tower body (1) is provided with a lightning conductor (3) and a communication antenna (4); the lightning conductor (3) is connected to the tower grounding grid (2) through a metal material in the tower body (1); the communication antenna (4) is connected to the communication device (02) by a communication cable (5);
the communication device (02) comprises a base station room (6), a lightning receptor (7) positioned at the top of the base station room (6) and a communication grounding network (8) electrically connected with internal equipment of the base station room (6); the lightning receptor (7) is connected to the tower grounding grid (2), and equipment in the base station room (6) is grounded through the communication grounding grid (8);
an electric insulation layer (9) is arranged between the tower grounding grid (2) and the communication grounding grid (8).
2. The power tower sharing system according to claim 1, wherein a plurality of insulators (10) are further disposed on the tower body (1) along an erection direction of the communication cable (5), and the communication cable (5) is disposed on the insulators (10).
3. The power tower sharing system according to claim 1, wherein the lightning receptor (7) comprises a lightning receptor net (71) and a lightning receptor pole (72) connected, the lightning receptor pole (72) being located at a corner of the top of the base station room (6).
4. The power tower sharing system according to claim 1, wherein the electrically insulating layer (9) is arc-shaped.
5. The power tower sharing system according to claim 4, wherein the electrically insulating layer (9) comprises a phenolic resin electrically insulating layer, an epoxy resin electrically insulating layer, a silicone resin electrically insulating layer and/or a fluororesin electrically insulating layer.
6. The power tower sharing system according to claim 1, wherein the equipment inside the base station room (6) comprises a plurality of weak current equipment (11), and the plurality of weak current equipment (11) are electrically connected to the communication antenna (4) and the communication grounding network (8), respectively.
7. The power tower sharing system according to claim 1, wherein the lightning receptor (7) is electrically connected to the tower grounding grid (2) by a grounding down conductor (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810480402.4A CN108711684B (en) | 2018-05-18 | 2018-05-18 | Electric power tower sharing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810480402.4A CN108711684B (en) | 2018-05-18 | 2018-05-18 | Electric power tower sharing system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108711684A CN108711684A (en) | 2018-10-26 |
| CN108711684B true CN108711684B (en) | 2020-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810480402.4A Active CN108711684B (en) | 2018-05-18 | 2018-05-18 | Electric power tower sharing system |
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| CN (1) | CN108711684B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109707208A (en) * | 2018-12-13 | 2019-05-03 | 中国能源建设集团江苏省电力设计院有限公司 | A kind of radio communication base station based on power line shaft tower |
| CN111244629B (en) * | 2020-01-08 | 2021-08-17 | 北方工业大学 | Lightning protection grounding method of shared iron tower |
| CN111525526A (en) * | 2020-04-30 | 2020-08-11 | 广东电网有限责任公司清远供电局 | Ground net isolating device |
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| CN1599164A (en) * | 2004-08-23 | 2005-03-23 | 孟庆彬 | High mountain lightning-protection device |
| CN101685955A (en) * | 2008-09-27 | 2010-03-31 | 中国移动通信集团湖南有限公司 | Base station lightning protection system |
| CN201690228U (en) * | 2010-03-26 | 2010-12-29 | 胡义彪 | Lightning protection system of mobile base station |
| CN105655962A (en) * | 2014-11-18 | 2016-06-08 | 国家电网公司 | Novel lightning protection device of overhead distribution line |
| CN206099269U (en) * | 2016-08-29 | 2017-04-12 | 福建中京通信息科技有限公司 | Lightning protection device of communication base station |
| CN206673869U (en) * | 2016-12-25 | 2017-11-24 | 张威威 | A kind of base station of solar cell module |
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2018
- 2018-05-18 CN CN201810480402.4A patent/CN108711684B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1599164A (en) * | 2004-08-23 | 2005-03-23 | 孟庆彬 | High mountain lightning-protection device |
| CN101685955A (en) * | 2008-09-27 | 2010-03-31 | 中国移动通信集团湖南有限公司 | Base station lightning protection system |
| CN201690228U (en) * | 2010-03-26 | 2010-12-29 | 胡义彪 | Lightning protection system of mobile base station |
| CN105655962A (en) * | 2014-11-18 | 2016-06-08 | 国家电网公司 | Novel lightning protection device of overhead distribution line |
| CN206099269U (en) * | 2016-08-29 | 2017-04-12 | 福建中京通信息科技有限公司 | Lightning protection device of communication base station |
| CN206673869U (en) * | 2016-12-25 | 2017-11-24 | 张威威 | A kind of base station of solar cell module |
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| CN108711684A (en) | 2018-10-26 |
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