CN205429190U - Grounding wire - Google Patents
Grounding wire Download PDFInfo
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- CN205429190U CN205429190U CN201520975952.5U CN201520975952U CN205429190U CN 205429190 U CN205429190 U CN 205429190U CN 201520975952 U CN201520975952 U CN 201520975952U CN 205429190 U CN205429190 U CN 205429190U
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- Prior art keywords
- earth lead
- grounding wire
- equipment
- alarm device
- electrode
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- 230000006698 induction Effects 0.000 claims description 37
- 230000003321 amplification Effects 0.000 claims description 8
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 abstract description 7
- 238000007789 sealing Methods 0.000 abstract description 6
- 230000005611 electricity Effects 0.000 abstract 3
- 238000012423 maintenance Methods 0.000 description 18
- 239000004020 conductor Substances 0.000 description 13
- 238000012795 verification Methods 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002372 labelling Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Abstract
The utility model provides a grounding wire, including the grounding wire body, have to articulate and hold and the earthing terminal, respond to alarm device with electricity, set up on the grounding wire body for articulate end and the distance of electrified equipment at the grounding wire body are less than and report to the police when predetermineeing the threshold value. Use the technical scheme of the utility model grounding wire, through set up the electrified alarm device that responds to on the grounding wire body, it is less than in the distance that articulates end and electrified equipment of grounding wire body and reports to the police when predetermineeing the threshold value to respond to with electricity alarm device, thereby realize that fortune dimension personnel treat whether electrified grouding device is sealing when hanging grounding wire automatic suggestion, the problem of before seal hanging grounding wire to power failure equipment among the prior art fortune dimension personnel forget the technique of testing the electricity easily is solved, the electrified accident of hanging grounding wire of sealing has been avoided taking place, fortune dimension personnel's life safety has been guaranteed.
Description
Technical field
This utility model relates to electric power maintenance apparatus technical field, in particular to a kind of earth lead.
Background technology
Power failure equipments is carried out one of important technique measure that reliable ground connection is to ensure that electric power safety works, after needing before ground connection power failure equipments to carry out strict electrical verification and confirms to have a power failure, hanging earthing conductor can be sealed.But, in practical operation, it is frequently present of operation maintenance personnel and forgets electrical verification, electroscope catastrophic failure or temporarily away from forgetting the situation of electrical verification again when again sealing hanging ground-wire behind scene, thus the accident of charged envelope hanging earthing conductor occurs, jeopardize the life security of operation maintenance personnel.
For in prior art, operation maintenance personnel before power failure equipments envelope hanging earthing conductor is easily forgotten the technical problem of electrical verification, the most not yet propose effective solution.
Utility model content
Main purpose of the present utility model is to provide a kind of earth lead, with the problem solving, in prior art, operation maintenance personnel before power failure equipments envelope hanging earthing conductor is easily forgotten electrical verification.
To achieve these goals, according to an aspect of the present utility model, it is provided that a kind of earth lead, including: earth lead body, there is articulated end and earth terminal；Charged induction alarm device, is arranged on earth lead body, for reporting to the police when the distance of the articulated end of earth lead body with charging equipment is less than predetermined threshold value.
Further, charged induction alarm device includes: electrode, is connected with earth lead body；Alarm equipment, is connected with power supply by switching tube；Switching tube, is connected with electrode, for being turned on power supply by alarm equipment when the capacitance signal of electrode is more than predetermined threshold value, makes alarm equipment send alarm signal.
Further, charged induction alarm device also includes: power amplification circuit, is connected with electrode and switching tube, for being amplified by the capacitance signal of electrode.
Further, power amplification circuit includes the multistage operational amplifier being serially connected.
Further, charged induction alarm device also includes: self-checking circuit, and whether normally works with power supply to be used for detecting alarm equipment.
Further, alarm equipment includes: at least one loudspeaker arrangement, light-emitting device or vibrating device.
Further, the equipment of raising one's voice is buzzer.
Further, light-emitting device is LED flash.
The earth lead of application the technical solution of the utility model, by arranging charged induction alarm device on earth lead body, charged induction alarm device is reported to the police when the articulated end of earth lead body is less than predetermined threshold value with the distance of charging equipment, thus realize operation maintenance personnel and automatically point out treat that grounding apparatus is the most charged when sealing hanging earthing conductor, solve in prior art and operation maintenance personnel before power failure equipments envelope hanging earthing conductor is easily forgotten the technical problem of electrical verification, avoid the accident that charged envelope hanging earthing conductor occurs, it is ensured that the life security of operation maintenance personnel.
Accompanying drawing explanation
The Figure of description of the part constituting the application is used for providing being further appreciated by of the present utility model, and schematic description and description of the present utility model is used for explaining this utility model, is not intended that improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the ground wire hitching schematic diagram according to this utility model embodiment；And
Fig. 2 is the structured flowchart of the charged induction alarm device of the earth lead according to this utility model embodiment；
Fig. 3 is the circuit diagram of the charged induction alarm device of the earth lead according to this utility model embodiment；
Fig. 4 is that a kind of utilization according to this utility model embodiment is connected wires the flow chart of the method carrying out live detection；
Fig. 5 is the another kind of flow chart utilizing the method carrying out live detection of connecting wires according to this utility model embodiment.
Wherein, above-mentioned accompanying drawing includes the following drawings labelling:
10, earth lead body；11, articulated end；12, earth terminal；20, charged induction alarm device；21, electrode；22, alarm equipment；23, switching tube；24, power supply；25, power amplification circuit；26, self-checking circuit；30, charging equipment.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the application and the feature in embodiment can be mutually combined.Describe this utility model below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
According to the earth lead of this utility model embodiment, as it is shown in figure 1, include: earth lead body 10 and charged induction alarm device 20, earth lead body 10 has articulated end 11 and earth terminal 12；Charged induction alarm device 20 is arranged on earth lead body 10, for reporting to the police when the distance of the articulated end 11 of earth lead body 10 with charging equipment 30 is less than predetermined threshold value.
The earth lead of application the technical solution of the utility model, by arranging charged induction alarm device 20 on earth lead body 10, charged induction alarm device 20 is reported to the police when the articulated end 11 of earth lead body 10 is less than predetermined threshold value with the distance of charging equipment 30, thus realize operation maintenance personnel and automatically point out treat that grounding apparatus is the most charged when sealing hanging earthing conductor, solve in prior art and operation maintenance personnel before power failure equipments envelope hanging earthing conductor is easily forgotten the technical problem of electrical verification, avoid the accident that charged envelope hanging earthing conductor occurs, it is ensured that the life security of operation maintenance personnel.
When being embodied as, as shown in Figure 2, charged induction alarm device 20 includes: electrode 21, alarm equipment 22, switching tube 23, power supply 24, electrode 21 is connected with earth lead body 10, alternatively, electrode 21 can replace with iron nail or screw etc., iron nail is used to hammer in the core of earth lead body 10, or linked together with earth lead body 10 by screw, not only act as fixing band electric induction alarm device 20 to act on, simultaneously, iron nail or screw also correspond to a pole plate of electric capacity, alarm equipment 22 is connected with power supply 24 by switching tube 23, control alarm equipment 22 by switching tube 23 to turn on power supply 24；Switching tube 23 is connected with electrode 21, receiving the change of capacitance on electrode 21, when mounting earth lead, operation maintenance personnel hand-held earth lead body 10 is near treating grounding apparatus, if this treats ground connection equipment live, what then this was charged treats that grounding apparatus and electrode 21 form capacity effect, treats that grounding apparatus and electrode 21 are equivalent to two pole plates of electric capacity, according to the computing formula of capacitance, C=ε S/4 π kd, d is the spacing between electric capacity two-plate, and d is the least, then capacitance C is the biggest.Therefore, when the articulated end 11 of earth lead body 10 is when moving closer to until grounding apparatus, capacitance C on electrode 21 can be gradually increased, switching tube 23 can be turned on when the capacitance on electrode 21 is more than predetermined threshold value, so that alarm equipment 22 and power supply 24 turn on, alarm equipment 22 can send corresponding alarm signal, thus points out operation maintenance personnel to treat ground connection equipment live, stops continuing mounting earth lead.
The following is charged induction alarm device 20 sensed data parameter list.
| Electric pressure | 10kV | 35kV | 110kV |
| Safety net distance | 0.125 meter | 0.4 meter | 1 meter |
| Nearly electric induction distance | 0.3 meter | 0.6 meter | 1.3 rice |
As seen from the above table, different electric pressures treat that its safety net distance of grounding apparatus is different, so needing to arrange the nearly electric induction distance of charged induction alarm device 20 according to different electric pressures, this nearly electric induction distance is corresponding with the predetermined threshold value of the capacitance on electrode 21, when this nearly electric induction distance, capacitance on electrode 21 is right up to predetermined threshold value, reports to the police.In order to ensure safety, this nearly electric induction distance needs more than safety net distance certain distance.
In order to the conducting making switching tube 23 is sensitiveer and reliable, charged induction alarm device 20 also includes: power amplification circuit 25, power amplification circuit 25 is connected with electrode 21 and switching tube 23, as shown in Figure 3, power amplification circuit 25 includes the multistage operational amplifier being serially connected, can be amplified by the capacitance signal on electrode 21, switching tube 23 receives the capacitance signal after amplifying and is controlled alarm equipment 22 with power supply 24 conducting, thus improves sensitivity and the reliability of conducting.
In order to ensure that charged induction alarm device 20 normally works, as it is shown on figure 3, charged induction alarm device 20 is additionally provided with self-checking circuit 26, whether normally works with power supply 24 to be used for detecting alarm equipment 22.Before to treating that grounding apparatus carries out ground connection, check that can charged induction alarm device 20 normally work by self-checking circuit 26, it is possible to increase the reliability of charged induction alarm device 20 work, it is to avoid unexpected situation occurs.
Alarm equipment 22 can select at least one loudspeaker arrangement, light-emitting device or vibrating device as required, and specifically, the equipment of raising one's voice can select buzzer, and light-emitting device can select LED flash.Operation maintenance personnel hand-held earth lead body 10 is near treating grounding apparatus, if this treats ground connection equipment live, buzzer meeting kept producing sound, LED flash can persistently glisten, vibrating device meeting sustained vibration, thus remind operation maintenance personnel to treat ground connection equipment live, need to stop continuation immediately and can treat that grounding apparatus carries out ground connection.
This utility model embodiment additionally provides a kind of method utilizing above-mentioned earth lead to carry out live detection, as shown in Figure 4, comprises the following steps:
The articulated end 11 of S102: earth lead moves closer to charging equipment 30 to be detected；
S104: the capacitance signal of the electrode 21 of induction charging induction alarm device 20；
S106: report to the police when the capacitance signal of electrode 21 is more than predetermined threshold value.
Further, in order to the conducting making switching tube 23 is sensitiveer and reliable, this utility model embodiment additionally provides the method that another kind utilizes above-mentioned earth lead to carry out live detection, as it is shown in figure 5, comprise the following steps:
The articulated end 11 of S202: earth lead moves closer to charging equipment 30 to be detected；
S204: the capacitance signal of the electrode 21 of induction charging induction alarm device 20；
S206: the capacitance signal of electrode 21 is amplified；
S208: report to the police when the capacitance signal of electrode 21 is more than predetermined threshold value.
The method of the live detection of application the technical solution of the utility model, by the articulated end 11 of earth lead is moved closer to charging equipment 30 to be detected, the capacitance signal of the electrode 21 of the induction charging induction alarm device 20 that sensing is arranged on earth lead, and report to the police when the capacitance signal of electrode 21 is more than predetermined threshold value, thus realize operation maintenance personnel and automatically point out treat that grounding apparatus is the most charged when sealing hanging earthing conductor, solve in prior art and operation maintenance personnel before power failure equipments envelope hanging earthing conductor is easily forgotten the technical problem of electrical verification, avoid the accident that charged envelope hanging earthing conductor occurs, ensure that the life security of operation maintenance personnel.
The foregoing is only preferred embodiment of the present utility model, be not limited to this utility model, for a person skilled in the art, this utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, within should be included in protection domain of the present utility model.
Claims (8)
1. an earth lead, it is characterised in that including:
Earth lead body (10), has articulated end (11) and earth terminal (12)；
Charged induction alarm device (20), it is arranged on described earth lead body (10), for reporting to the police when the distance of the articulated end (11) of described earth lead body (10) with charging equipment (30) is less than predetermined threshold value.
Earth lead the most according to claim 1, it is characterised in that described charged induction alarm device (20) including:
Electrode (21), is connected with described earth lead body (10)；
Alarm equipment (22), is connected with power supply (24) by switching tube (23)；
Described switching tube (23), it is connected with described electrode (21), for described alarm equipment (22) being turned on described power supply (24) when the capacitance signal of described electrode (21) is more than predetermined threshold value, described alarm equipment (22) is made to send alarm signal.
Earth lead the most according to claim 2, it is characterised in that described charged induction alarm device (20) also includes:
Power amplification circuit (25), is connected with described electrode (21) and described switching tube (23), for being amplified by the capacitance signal of described electrode (21).
Earth lead the most according to claim 3, it is characterised in that described power amplification circuit (25) includes the multistage operational amplifier being serially connected.
Earth lead the most according to claim 2, it is characterised in that described charged induction alarm device (20) also includes:
Self-checking circuit (26), whether normally works with described power supply (24) to be used for detecting described alarm equipment (22).
Earth lead the most according to claim 2, it is characterised in that described alarm equipment (22) including:
At least one loudspeaker arrangement, light-emitting device or vibrating device.
Earth lead the most according to claim 6, it is characterised in that described in the equipment of raising one's voice be buzzer.
Earth lead the most according to claim 6, it is characterised in that described light-emitting device is LED flash.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520975952.5U CN205429190U (en) | 2015-11-30 | 2015-11-30 | Grounding wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520975952.5U CN205429190U (en) | 2015-11-30 | 2015-11-30 | Grounding wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205429190U true CN205429190U (en) | 2016-08-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520975952.5U Active CN205429190U (en) | 2015-11-30 | 2015-11-30 | Grounding wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205429190U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356084A (en) * | 2015-11-30 | 2016-02-24 | 国网北京市电力公司 | Grounding wire and method using same for live detection |
-
2015
- 2015-11-30 CN CN201520975952.5U patent/CN205429190U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105356084A (en) * | 2015-11-30 | 2016-02-24 | 国网北京市电力公司 | Grounding wire and method using same for live detection |
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| GR01 | Patent grant |