CN203850829U - Multi-loop line arrester - Google Patents
Multi-loop line arrester Download PDFInfo
- Publication number
- CN203850829U CN203850829U CN201420105438.1U CN201420105438U CN203850829U CN 203850829 U CN203850829 U CN 203850829U CN 201420105438 U CN201420105438 U CN 201420105438U CN 203850829 U CN203850829 U CN 203850829U
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- arrester
- loop
- loop line
- utility
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Abstract
The utility model discloses a multi-loop line arrester mounted in a cable conjunction box. The multi-loop line arrester comprises a plurality of arrester components connected in parallel, wherein one end of each arrester component is connected with a cable of a to-be-protected device to form a loop, the other end of each arrester component is grounded through a common ground wire, and the plurality of arrester components are discharge tubes. By the abovementioned mode, the multi-loop line arrester adopts a mode that multiple loops are connected in parallel, the discharge tubes are connected on cables in parallel, a high voltage breakdown mode of the discharge tubes is utilized in lightning protection, and signal transmission under normal voltage is ensured at the same time.
Description
Technical field
The utility model relates to safety of coal mines control technology field, particularly relates to a kind of multi-loop line lightning arrester.
Background technology
Thunder and lightning is natural electric discharge phenomena in atmosphere, the general lightning that cries, its shape is divided into wire, band shape, sheet and spherical, by locus can be divided between thundercloud and thundercloud to two classes between the earth, the former occurs in high-altitude, less to mankind harm, the latter occurs in thundercloud to the thunder that lands between the earth, especially negative polarity is landed thunder, maximum to human body and equipment harm, is the main source that causes coal mine lightning strike accident.
In order to prevent that rainy season, thunder and lightning brought injury to mine safety and personal security, prevent that thunder and lightning from involving down-hole and causing the disasters such as gas, coal dust and fire, introduce supply line and the electric locomotive stringing of down-hole via ground overhead transmission line, must install thunder resisting equipment in porch; Communication line must enter Jing Chu installing fuse and thunder resisting equipment.
At present; the most of existing power supplys of mining communication apparatus have again the unit equipment of signal; and lightning arrester mostly is monomer protection type; can only protect power supply or the signal transmitting apparatus of communication apparatus; if communication apparatus configuration is more; use monomer protection type lightning arrester to have a lot of drawbacks, as it is many to connect up, complex structure, bulky, cost is expensive etc.
Utility model content
The technical problem that the utility model mainly solves is to provide a kind of multi-loop line lightning arrester, and volume is little, and cost is low, adopt multiloop parallel form, be connected on each cable with discharge tube, utilize the high electrical breakdown mode of discharge tube lightning-arrest, can ensure the signal transmission under normal voltage simultaneously.
For solving the problems of the technologies described above; the technical scheme that the utility model adopts is: a kind of multi-loop line lightning arrester is provided; be installed in wire or cable terminal box; described multi-loop line lightning arrester comprises: several unit of an arrester; described several unit of an arrester are connected in parallel, and wherein, one end of each unit of an arrester and the cable of protected equipment connect and compose a loop; the other end of each unit of an arrester is by shared grounding line ground connection, and described several unit of an arrester are discharge tube.
In preferred embodiment of the utility model, the quantity of described discharge tube is 1-48.
In preferred embodiment of the utility model, described loop number has: 24 loops, 36 loops and 48 loops.
In preferred embodiment of the utility model, the quantity of described discharge tube equates with the quantity in loop.
The beneficial effects of the utility model are: the utility model adopts multiloop parallel form, are connected on each cable with discharge tube, utilize the high-voltage breakdown mode of discharge tube lightning-arrest, can ensure again signal transmission under normal voltage.
Brief description of the drawings
Fig. 1 is the circuit diagram of a kind of multi-loop line lightning arrester of the utility model;
Fig. 2 is the structure chart of application scenario shown in Fig. 1;
In accompanying drawing, the mark of each parts is as follows: a1, unit of an arrester, a2, loop, a3, well head terminal box, a4, cable.
Embodiment
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that, protection range of the present utility model is made to more explicit defining.
Refer to Fig. 1 and Fig. 2, the utility model embodiment comprises:
A kind of multi-loop line lightning arrester; be installed in wire or cable terminal box; described multi-loop line lightning arrester comprises: several unit of an arrester a1; described several unit of an arrester a1 is connected in parallel; wherein; the cable a4 of one end of each unit of an arrester a1 and protected equipment connects and composes a loop, and the other end of each unit of an arrester a1 is by shared grounding line ground connection, and described several unit of an arrester a1 is discharge tube.
Described loop number has: 24 loops, 36 loops and 48 loops, and the quantity of described discharge tube equates with the quantity of described loop a2.
Work engineering of the present utility model is:
As shown in Figure 2; adopt 24 return lead lightning arresters; at well head terminal box a3 internal wiring: successively by the connection cable a4 of one end of 24 discharge tubes several protected equipment in parallel; the other end is by same ground connection; discharge tube and protected equipment form at most 24 independently loop a2 like this; in the time that one of them equipment is struck by lightning, the discharge tube on corresponding loop a2 by higher than electric current and voltage flow back to the earth.
The utility model has disclosed a kind of multiloop route lightning arrester; be connected to the mining communication equipment terminal that cable connects, for the protection of terminal equipment, in the time that equipment is struck by lightning; the discharge power that utilizes discharge tube by higher than electric current and voltage flow back to the earth, can ensure again the signal transmission under normal voltage.
The foregoing is only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model specification and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (4)
1. a multi-loop line lightning arrester; it is characterized in that; be installed in wire or cable terminal box; described multi-loop line lightning arrester comprises: several unit of an arrester; described several unit of an arrester are connected in parallel, and wherein, one end of each unit of an arrester and the cable of protected equipment connect and compose a loop; the other end of each unit of an arrester is by shared grounding line ground connection, and described several unit of an arrester are discharge tube.
2. multi-loop line lightning arrester according to claim 1, is characterized in that, the quantity of described discharge tube is 1-48.
3. multi-loop line lightning arrester according to claim 1, is characterized in that, described loop number has: 24 loops, 36 loops and 48 loops.
4. according to the multi-loop line lightning arrester one of claim 1-3 Suo Shu, it is characterized in that, the quantity of described discharge tube equates with the quantity in described loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420105438.1U CN203850829U (en) | 2014-03-10 | 2014-03-10 | Multi-loop line arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420105438.1U CN203850829U (en) | 2014-03-10 | 2014-03-10 | Multi-loop line arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203850829U true CN203850829U (en) | 2014-09-24 |
Family
ID=51563801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420105438.1U Expired - Fee Related CN203850829U (en) | 2014-03-10 | 2014-03-10 | Multi-loop line arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203850829U (en) |
-
2014
- 2014-03-10 CN CN201420105438.1U patent/CN203850829U/en not_active Expired - Fee Related
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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: 20140924 Termination date: 20170310 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |