CN203119466U - Transient equipotential connection system for grounding grid of small communication station - Google Patents
Transient equipotential connection system for grounding grid of small communication station Download PDFInfo
- Publication number
- CN203119466U CN203119466U CN 201320072672 CN201320072672U CN203119466U CN 203119466 U CN203119466 U CN 203119466U CN 201320072672 CN201320072672 CN 201320072672 CN 201320072672 U CN201320072672 U CN 201320072672U CN 203119466 U CN203119466 U CN 203119466U
- Authority
- CN
- China
- Prior art keywords
- well
- grounding
- small
- ground connection
- electrically connected
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a transient equipotential connection system for a grounding grid of a small communication station. The system comprises a small communication bureau station, a grounding bar and communication equipment, wherein the grounding bar and the communication equipment are arranged inside the small communication bureau station; a working ground and a protection ground of the communication equipment are electrically connected with the grounding bar respectively; a grounding well is arranged at one side, far away from a high-voltage power transmission system, of the small communication bureau station, an in-well grounding bar is arranged in the grounding well, one end of the in-well grounding bar is electrically connected with the grounding bar in the communication bureau station, and the other end is electrically connected with a grounded counterpoise, arranged at the grounding well, of the communication equipment; and a discharge tube is arranged in the grounding well, on end of the discharge tube is electrically connected with a steel grounding grid in a building foundation of the small communication bureau station, and the other end is electrically connected with the in-well grounding bar. The transient equipotential connection system for the grounding grid of the small communication station has the advantage that transient equipotential connection of the grounding grid of the small communication bureau station enables the small communication bureau station to be built in a position close to the high-voltage power transmission system and helps avoid dangerous impacts of the high-voltage power transmission system on the small communication bureau station.
Description
Technical field
The utility model relates to small-sized communication site earth mat connected system, especially relates to small-sized communication site earth mat transient state equipotential connected system.
Background technology
Along with the fast development of communication system, near the situation that small-sized communications office site (mobile communication base station, local telephone network module office, access site etc.) is positioned at high voltage transmission line and the high voltage substation is more and more general.Require to adopt joint grounding in the existing communications industry lightning protection standard, i.e. place of working, protection ground, the unification of lightning proof ground three ground, place of working, protection ground, the mutual electrical communication of lightning proof ground.This earthing mode can produce safety problem when communications office site's vicinity high voltage power transmisson system.As under the high voltage power transmisson system generation ground fault condition, its ground can produce huge moment earth potential liter on the net, and the resistive ground that is coupling in small-sized communications office site by the earth induces high potential on the net.This high potential can produce dangerous influence to staff and the communication equipment in small-sized communications office site.The method that in the past prevented this dangerous influence can only adopt distance to go the method for lotus root, namely strengthens the distance between small-sized communications office site and the high voltage power transmisson system.But can largely limit the addressing scope of small-sized communications office site like this, cause a lot of positions can not build small-sized communications office site.
Summary of the invention
The utility model purpose is to provide a kind of small-sized communication site earth mat transient state equipotential connected system.
For achieving the above object, the utility model is taked following technical proposals:
Small-sized communication site described in the utility model earth mat transient state equipotential connected system, the ground connection row, the communication equipment that comprise small-sized communications office site and set within it; The place of working of described communication equipment, protection ground are electrically connected with described ground connection row respectively; Be provided with the ground connection well in small-sized communications office site away from a side of high voltage power transmisson system, ground connection row in the well is set in described ground connection well, ground connection row's a end and the row of the ground connection in the communications office site are electrically connected in the described well, and the other end is electrically connected with the counterpoises that are arranged on the communication equipment of ground connection Jing Chu; Be provided with discharge tube in the ground connection well, the reinforcing bar earth mat is electrically connected in described discharge tube one end and the small-sized communications office site building foundation, and ground connection row is electrically connected in the other end and the well.
The utility model advantage is to take the transient state equipotential to connect small-sized communications office site earth mat; under normal circumstances namely; reinforcing bar earth mat (lightning protection earth mat) electrical separation in the place of working of communication equipment, protection ground and the small-sized communications office site building foundation is passed through the resistive coupling of the earth to the dangerous influence of small-sized communications office site in the small-sized communications office site in the time of can preventing high voltage power transmisson system generation ground short circuit fault like this.And when thunderbolt communications office site, by being arranged on the discharge tube in the ground connection well, reinforcing bar earth mat (lightning protection earth mat) in communication equipment counterpoises and the communications office site building foundation is electrically connected, forms joint grounding, can reach the excellent prevention thunderbolt again to the purpose of small-sized communications office site influence; Make small-sized communications office site can build from high voltage power transmisson system closer locations place, avoid high voltage power transmisson system to the dangerous influence of small-sized communications office site again simultaneously.
Description of drawings
Fig. 1 is the structural representation of system described in the utility model.
Embodiment
As shown in Figure 1, small-sized communication site described in the utility model earth mat transient state equipotential connected system, the ground connection row 2, the communication equipment 3 that comprise small-sized communications office site 1 and set within it; The place of working of described communication equipment 3, protection ground are electrically connected with described ground connection row 2 respectively; Be provided with ground connection well 5 in small-sized communications office site 1 away from a side of high voltage power transmisson system 4, ground connection row 6 in the well is set in described ground connection well 5, an end of ground connection row 6 and the ground connection row 2 in the communications office site 1 are electrically connected in the described well, and the other end is electrically connected with the counterpoises 7 that are arranged on the communication equipment 3 of ground connection Jing5Chu; Be provided with discharge tube 8 in ground connection well 5, reinforcing bar earth mat 9 is electrically connected in described discharge tube 8 one ends and small-sized communications office site 1 building foundation, and ground connection row 6 is electrically connected in the other end and the well.
The utility model operation principle is summarized as follows:
When thunderbolt communications office site 1 building takes place when, discharge tube 8 actions, with reinforcing bar earth mat 9(lightning protection earth mat in communication equipment 3 counterpoises 7 in the communications office site 1 and small-sized communications office site 1 building foundation) be electrically connected, these two earth mats formation joint grounding that unites two into one guarantees communication equipment 3 in the small-sized communications office site 1 and staff's safety.When the high voltage substation generation ground short circuit fault of high voltage power transmisson system 4; discharge tube 8 is failure to actuate; because the place of working of each communication equipment 3 in the communications office site 1; protection ground is electrically connected with communication equipment 3 counterpoises 7 by ground connection row 6 in the well; therefore; the place of working of each communication equipment 3 in the small-sized communications office site 1; distance between the earth mat 10 of protection ground and high voltage power transmisson system 4 increases; at this moment; the place of working of each communication equipment 3 in the small-sized communications office site 1; protection earth potential on the ground rises numerical value less than reinforcing bar earth mat 9(lightning protection earth mat in small-sized communications office site 1 building foundation) on earth potential rise numerical value
Be in the permissible value of the distance of earth mat 10 and communication equipment 3 counterpoises 7 of the high voltage power transmisson system 4 maximum short circuit current dangerous influence as calculated when reaching high voltage substation generation ground short circuit fault, thereby reach the purpose of appreciating not and can exert an influence to the person and communication equipment 3 in each communication equipment 3 place of working in the small-sized communications office site 1, protection earth potential on the ground.
Claims (1)
1. small-sized communication site earth mat transient state equipotential connected system, the ground connection row (2), the communication equipment (3) that comprise communications office site (1) and set within it; The place of working of described communication equipment (3), protection ground are electrically connected with described ground connection row (2) respectively; It is characterized in that: be provided with ground connection well (5) in small-sized communications office site (1) away from a side of high voltage power transmisson system (4), ground connection row (6) in the well is set in described ground connection well (5), ground connection row's (6) a end is electrically connected with ground connection row (2) in the small-sized communications office site (1) in the described well, and the other end and the counterpoises (7) that are arranged on the communication equipment (3) that ground connection well (5) locates are electrically connected; Be provided with discharge tube (8) in ground connection well (5), reinforcing bar earth mat (9) is electrically connected in described discharge tube (8) one ends and small-sized communications office site (1) building foundation, and ground connection row (6) is electrically connected in the other end and the well.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320072672 CN203119466U (en) | 2013-02-16 | 2013-02-16 | Transient equipotential connection system for grounding grid of small communication station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320072672 CN203119466U (en) | 2013-02-16 | 2013-02-16 | Transient equipotential connection system for grounding grid of small communication station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203119466U true CN203119466U (en) | 2013-08-07 |
Family
ID=48899783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320072672 Expired - Lifetime CN203119466U (en) | 2013-02-16 | 2013-02-16 | Transient equipotential connection system for grounding grid of small communication station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203119466U (en) |
-
2013
- 2013-02-16 CN CN 201320072672 patent/CN203119466U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202772882U (en) | Shielding-type anti-interference electric power secondary system | |
| CN105140903A (en) | Transformer neutral point gas insulated substation | |
| CN204597473U (en) | The indoor 7 grades of lightning-protection systems of a kind of network center machine room | |
| CN205212399U (en) | Safe pressure release formula cross -bonding grounding test case | |
| CN215641595U (en) | Safety electricity utilization monitoring device for public facilities | |
| CN102545175B (en) | Underground anti-override tripping system based on radio frequency network | |
| CN103151767B (en) | Method for connecting transient equipotential of grounding grid in case of dangerous influence to small-sized communication station caused by strong currents | |
| CN104537137A (en) | A prediction method, a prediction device, and a defense method for a short circuit fault of a high-voltage power transformer | |
| CN205178493U (en) | Modular neutal point earthing composite control device | |
| CN202474852U (en) | Integrated grounding distribution mechanism | |
| CN103972836A (en) | Electric transmission line drilling method | |
| CN201270412Y (en) | Temporary energy consumption general distribution box leakage protection and control apparatus for construction | |
| CN103280784A (en) | Neutral line breakage protection method and neutral line breakage protector | |
| CN202737115U (en) | Grounding structure of high voltage single core cable metal outer sheath | |
| CN102832553A (en) | Transformer substation grounding system | |
| CN210041325U (en) | A device for balancing grid-to-ground current | |
| CN201616628U (en) | Distribution box for construction technology | |
| CN103151768B (en) | Method for decoupling grounding grid distance of communication bureau station in case of dangerous influence to communication bureau station caused by strong currents | |
| CN201781275U (en) | Communication base station lightning-protection power supply system with lightning surge protectors | |
| CN204517386U (en) | Distribution line middle rank protection integration unit | |
| CN203826948U (en) | Special surge protector for smart ammeter | |
| CN206533124U (en) | It is a kind of to record automatically by the general lightning protection device of high resistance ground line of number of lightning strokes | |
| CN203445609U (en) | Electrical Equipment Protection System for Adjacent Houses When Communication Base Stations Are Struck by Lightning | |
| CN218472772U (en) | Direct current switch equipment provided with distributed lightning protection and anti-interference lifting device | |
| CN204793791U (en) | Wind -powered electricity generation field is with built on stilts box -type substation that is qualified for next round of competitions |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130807 |
|
| CX01 | Expiry of patent term |