CN217087509U - Cable one-end lightning protection unit and lightning protection cabinet - Google Patents
Cable one-end lightning protection unit and lightning protection cabinet Download PDFInfo
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- CN217087509U CN217087509U CN202123101933.4U CN202123101933U CN217087509U CN 217087509 U CN217087509 U CN 217087509U CN 202123101933 U CN202123101933 U CN 202123101933U CN 217087509 U CN217087509 U CN 217087509U
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Abstract
The utility model belongs to the technical field of the signal lightning protection, a cable one-tenth end lightning protection unit and lightning protection cabinet are related to, include: the lightning protection device comprises an end forming box, a six-terminal base and a lightning protection module; the end forming box is used for forming an end with a cable of outdoor equipment for the second time, the cable comprises a core wire and a shielding layer, only the core wire enters the room, and the shielding layer is grounded through a shielding grounding copper strip; the core wire entering the room is connected with the wire inlet branching terminal of the six-terminal base; the lightning protection module is connected to a protected circuit through the six-terminal base and is connected to the lightning protection grounding copper bar grounding through the six-terminal base, and the outgoing line branching terminal of the six-terminal base is used for being connected with a cable simulation disc of indoor equipment. The utility model discloses well lightning protection unit's structure is simpler, and the realization that can be better is vertical, horizontal or indulge horizontal lightning protection, has better lightning protection effect.
Description
Technical Field
The utility model relates to a cable one-tenth end lightning protection unit and lightning protection cabinet belongs to signal lightning protection technical field.
Background
Indoor equipment such as a ZPW-2000 track circuit and the like are connected with outdoor equipment through cables, when the outdoor equipment or a steel rail is invaded by lightning current or power frequency heavy current, the impact heavy current directly invades indoors through a cable channel, and the indoor equipment is seriously impacted by the current, so that the railway operation safety is threatened. At present, the ZPW-2000 track circuit is damaged by lightning, and protective measures are mainly taken from improving the electromagnetic environment used by equipment, such as grounding treatment of a cable shielding layer, arrangement of a distributing board grounding wire and the like, but only improve the external use environment of the equipment, and are not taken from improving the lightning-resistant capability of the equipment; the lightning protection problem of the cable simulation network disk is not fundamentally solved.
Disclosure of Invention
To the problem, the utility model aims at providing a cable one-tenth end lightning protection unit and lightning protection cabinet, its simple structure, realization that can be better is vertical, horizontal or indulge horizontal lightning protection, has better lightning protection effect.
In order to achieve the purpose, the utility model adopts the following technical proposal: a cable termination lightning protection unit comprising: the lightning protection device comprises an end forming box, a six-terminal base and a lightning protection module; the end forming box is used for forming an end with a cable of outdoor equipment for the second time, the cable comprises a core wire and a shielding layer, only the core wire enters the room, and the shielding layer is grounded through a shielding grounding copper strip; the core wire entering the room is connected with the wire inlet branching terminal of the six-terminal base; the lightning protection module is connected to a protected circuit through the six-terminal base and is connected to the lightning protection grounding copper bar grounding through the six-terminal base, and the outgoing line branching terminal of the six-terminal base is used for being connected with a cable simulation disc of indoor equipment.
Furthermore, the lightning protection module is a surge protector capable of longitudinally, transversely or longitudinally and transversely protecting the cable core, the surge protector is connected to the cable core of the protected equipment through the lightning protection leading terminal of the six-terminal base, and the outgoing line branching terminal of the six-terminal base is connected with the indoor equipment.
Furthermore, the surge protector comprises a plurality of sub-units connected in parallel, two ends of one sub-unit are respectively connected with two leads, the leads are connected with the incoming line branching terminal and the outgoing line branching terminal, one end of each of the other sub-units is connected with the first sub-unit, and the other end of each of the other sub-units is grounded.
Further, each subunit includes a varistor and a gas discharge tube connected in series.
Furthermore, the identification pin is connected with the six-terminal base, and the remote signaling rod is connected with the failure linkage structure of the six-terminal base and used for transmitting a remote signaling dry contact signal.
The invention also discloses a lightning protection cabinet, which comprises: the intelligent cabinet comprises a cabinet body, a data acquisition unit, a control unit, an upper monitoring unit and any one of the cable terminating lightning protection units; the cabinet body is used for placing other units except the cabinet body; the data acquisition unit is used for acquiring the electric signal of the lightning protection unit at the cable forming end; the control unit is used for receiving the electric signal of the data acquisition unit and giving an alarm when the electric signal exceeds a threshold value; and the upper monitoring unit is used for receiving the electric signals processed by the control unit, and analyzing and storing the electric signals.
Furthermore, the data acquisition unit comprises a lightning current sensor, a power frequency current sensor and a temperature sensor which are arranged in the cabinet body, and a remote signaling dry contact connected with the lightning protection module.
Further, the control unit comprises a controller, a communication interface is arranged on the controller, and the controller is connected with the upper monitoring unit through the communication interface.
Further, the control unit comprises a controller, and the controller is further connected with the alarm and the temperature control fire extinguisher and used for alarming and extinguishing fire when the temperature of the lightning protection cabinet is too high.
Further, the control unit is connected with the display screen for data display.
The utility model discloses owing to take above technical scheme, it has following advantage:
1. the system structure is simpler in this scheme, and vertical, horizontal or vertical horizontal lightning protection of realization that can be better has better lightning protection effect.
2. This scheme can prevent because other cables of heavy current production spark arc injury, the airtight structure is set to cable one-tenth end room, is equipped with the control by temperature change fire extinguisher, can automatic fire extinguishing, further guarantees lightning protection cabinet safe and reliable.
Drawings
Fig. 1 is a schematic structural diagram of a cable terminating lightning protection unit according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of the lightning protection module in the above embodiment.
Detailed Description
The present invention is described in detail by way of specific embodiments for better understanding of the technical solutions of the present invention by those skilled in the art. It should be understood, however, that the detailed description is provided for a better understanding of the invention only and that they should not be taken as limiting the invention. In describing the present invention, it is to be understood that the terminology used is for the purpose of description only and is not intended to be interpreted as indicating or implying any relative importance.
Example one
The embodiment discloses a lightning protection unit for cable terminating, as shown in fig. 1 and 2, including: the lightning protection device comprises an end forming box, a six-terminal base and a lightning protection module;
the end forming box is used for forming an end with the secondary of a cable of outdoor equipment, the cable comprises a core wire and a shielding layer, only the core wire enters the indoor, the shielding layer is grounded through a shielding grounding copper bar, the shielding layer is of a closed structure, an electric arc isolation box is arranged outside the shielding layer, and the electric arc isolation box is used for preventing the electric arc generated by large current from damaging other cables.
The core wire entering the room is connected with the wire inlet and distribution terminal of the six-terminal base through the cable core wire; the output end of the incoming line branching terminal of the six-terminal base is respectively connected with the lightning protection leading terminal of the six-terminal base and the input end of the outgoing line branching terminal.
The lightning protection module is connected to a protected circuit through the six-terminal base and is connected to the lightning protection grounding copper bar grounding through the six-terminal base, and the outgoing line branching terminal of the six-terminal base is used for being connected with a cable simulation disc of indoor equipment. The output end of the lightning protection leading terminal is connected with the lightning protection module; the lightning protection module is fixed on the six-terminal base, and distribution lines are carried out through the six-terminal base. Outdoor cable conductor is connected to the inlet wire binding post of six terminal bases, and indoor cable conductor is connected to the outlet wire binding post of six terminal bases. The incoming line branching terminal, the outgoing line branching terminal and the lightning protection leading terminal in the embodiment can be integrated on the six-terminal base, and can also be arranged in a dispersed mode.
The lightning protection module is a surge protector capable of longitudinally, transversely or longitudinally and transversely protecting a cable core, the surge protector is connected to the cable core of protected equipment through a lightning protection leading terminal of the six-terminal base, and an outgoing line branching terminal of the six-terminal base is connected with indoor equipment. The surge protector comprises a plurality of sub-units connected in parallel, two ends of one sub-unit are respectively connected with two leads, the leads are connected with an incoming line branching terminal and an outgoing line branching terminal, one end of each of the other sub-units is connected with the first sub-unit, and the other end of each of the other sub-units is grounded. The output end of the lightning protection leading terminal is connected with a plurality of lightning protection modules; the output end of the lightning protection module is connected with a cable simulation disc of the indoor equipment through the outgoing line distributing terminal. Each subunit comprises a varistor and a gas discharge tube connected in series.
The lightning protection module is provided with an identification pin and a remote signaling rod, the identification pin is connected with the six-terminal base, and the remote signaling rod is connected with the failure linkage structure of the six-terminal base and used for transmitting a remote signaling dry contact signal.
Example two
Based on the same inventive concept, the present embodiment discloses a lightning protection cabinet, as shown in fig. 2, including: the intelligent cabinet comprises a cabinet body 1, a data acquisition unit, a control unit, an upper monitoring unit and any one of the cable terminating lightning protection units; the cabinet body 1 is used for placing other units except the cabinet body 1; the data acquisition unit is used for acquiring the electric signal of the lightning protection unit at the cable forming end; the control unit is used for receiving the electric signal of the data acquisition unit and giving an alarm when the electric signal exceeds a threshold value; and the upper monitoring unit is used for receiving the electric signals processed by the control unit, and analyzing and storing the electric signals.
In this embodiment, the data acquisition unit is including setting up lightning current sensor 2, power frequency current sensor 3, the temperature sensor in the cabinet body 1 and the remote signalling dry contact of being connected with the lightning protection module. The control unit comprises a controller, a communication interface is arranged on the controller, and the controller is connected and connected through the communication interface. The control unit comprises a controller, and the controller is also connected with the alarm, the temperature control fire extinguisher and the display screen and is used for alarming and extinguishing fire when the temperature of the lightning protection cabinet is too high. The control unit can monitor the temperature of the lightning protection cabinet, set a temperature threshold value, and send an alarm if the temperature threshold value is exceeded, so that an operator can know the cable condition in time and find troubleshooting faults. And meanwhile, the control unit uploads the monitored and collected information to the upper monitoring unit through an RS485 interface or an RJ45 Ethernet interface.
The temperature control fire extinguisher is arranged in the lightning protection cabinet and near the end forming box, and can also be placed at other positions where electric sparks are easy to generate, so that the fire can be automatically extinguished, and the fire can be prevented from happening. In this embodiment, the display screen is displayed by a dot matrix screen, and may set, display, and query relevant technical parameters, alarm information, and the like.
In this embodiment, outdoor cable gets into the rack and carries out the secondary and become the end, and after the cable secondary becomes the end, adopt surge protector to carry out the vertical and horizontal protection to the cable conductor, the core shielding is ground connection nearby, surge protector output terminal and indoor cable connection.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents of the embodiments of the invention may be made without departing from the spirit and scope of the invention, which should be construed as falling within the scope of the claims of the invention. The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A cable termination lightning protection unit, comprising: the lightning protection device comprises an end forming box, a six-terminal base and a lightning protection module;
the end forming box is used for forming an end with a cable of outdoor equipment for the second time, the cable comprises a core wire and a shielding layer, only the core wire enters the room, and the shielding layer is grounded through a shielding grounding copper strip;
the core wire entering the room is connected with the wire inlet branching terminal of the six-terminal base;
the lightning protection module is connected to a protected circuit through the six-terminal base and is connected to the lightning protection grounding copper bar for grounding through the six-terminal base, and the outgoing line branching terminal of the six-terminal base is used for being connected with a cable simulation disc of indoor equipment.
2. The cable ending lightning protection unit according to claim 1, wherein the lightning protection module is a surge protector capable of protecting a cable core longitudinally, transversely or longitudinally and transversely, the surge protector is connected to the cable core of a protected device through the lightning protection leading terminal of the six-terminal base, and the outgoing line branching terminal of the six-terminal base is connected with indoor equipment.
3. The lightning protection unit according to claim 2, wherein the surge protector comprises a plurality of sub-units connected in parallel, wherein two ends of one sub-unit are respectively connected with two leads, the leads are connected with the incoming line branching terminal and the outgoing line branching terminal, and one end of the other sub-units is connected with the first sub-unit, and the other end of the other sub-units is grounded.
4. The cable-ending lightning protection unit of claim 3, wherein each of the subunits comprises a varistor and a gas discharge tube connected in series.
5. The cable ending lightning protection unit according to any one of claims 1 to 4, wherein the lightning protection module is provided with an identification pin and a telecommand rod, the identification pin is connected with the six-terminal base, and the telecommand rod is connected with the failure linkage structure of the six-terminal base and is used for transmitting a telecommand dry contact signal.
6. A lightning protection cabinet, comprising: the lightning protection device comprises a cabinet body, a data acquisition unit, a control unit, an upper monitoring unit and a cable terminating lightning protection unit according to any one of claims 1-5;
the cabinet body is used for placing other units except the cabinet body;
the data acquisition unit is used for acquiring the electric signal of the cable terminating lightning protection unit;
the control unit is used for receiving the electric signal of the data acquisition unit and giving an alarm when the electric signal exceeds a threshold value;
and the upper monitoring unit is used for receiving the electric signals processed by the control unit, and analyzing and storing the electric signals.
7. The lightning protection cabinet according to claim 6, wherein the data acquisition unit comprises a lightning current sensor, a power frequency current sensor, a temperature sensor and a remote signaling trunk contact connected with the lightning protection module, which are arranged in the cabinet body.
8. The lightning protection cabinet according to claim 6, wherein the control unit includes a controller, the controller is provided with a communication interface, and the controller is connected with the upper monitoring unit through the communication interface.
9. The lightning protection cabinet according to claim 8, wherein the control unit comprises a controller, and the controller is further connected with an alarm and a temperature-controlled fire extinguisher for alarming and extinguishing fire when the temperature of the lightning protection cabinet is too high.
10. The lightning protection cabinet according to claim 7, wherein the control unit is connected to a display screen for data display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123101933.4U CN217087509U (en) | 2021-12-06 | 2021-12-06 | Cable one-end lightning protection unit and lightning protection cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123101933.4U CN217087509U (en) | 2021-12-06 | 2021-12-06 | Cable one-end lightning protection unit and lightning protection cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217087509U true CN217087509U (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123101933.4U Active CN217087509U (en) | 2021-12-06 | 2021-12-06 | Cable one-end lightning protection unit and lightning protection cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217087509U (en) |
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2021
- 2021-12-06 CN CN202123101933.4U patent/CN217087509U/en active Active
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