CN110673061A - Composite portable short circuit grounding wire with self-detection function - Google Patents
Composite portable short circuit grounding wire with self-detection function Download PDFInfo
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- CN110673061A CN110673061A CN201910915866.8A CN201910915866A CN110673061A CN 110673061 A CN110673061 A CN 110673061A CN 201910915866 A CN201910915866 A CN 201910915866A CN 110673061 A CN110673061 A CN 110673061A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
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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
- H01R11/00—Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
- H01R11/11—End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
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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
- H01R4/28—Clamped connections, spring connections
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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
- H01R2201/00—Connectors or connections adapted for particular applications
- H01R2201/20—Connectors or connections adapted for particular applications for testing or measuring purposes
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- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention relates to the technical field of electric power detection, in particular to a composite portable short-circuit grounding wire with a self-detection function, which comprises a wire end composite wire clamp, a composite short-circuit connecting wire, a grounding end composite wire clamp and an additional detection circuit; two ends of the composite short circuit connecting wire are respectively and electrically connected with the composite wire clamp at the wire end and the composite wire clamp at the grounding end; the invention can be combined with the resistance measuring unit or the alarm prompting unit through the additional detection circuit on the short-circuit grounding wire to detect the electrical connection tightness degree of the grounding wire, the wire and the grounding network, so that maintenance personnel are really under the protection of the power connection wire.
Description
Technical Field
The invention belongs to the technical field of electric power detection, and mainly relates to a composite portable short-circuit grounding wire with a self-detection function.
Background
In the maintenance construction process of the power system, two ends of the grounding wire are respectively connected with the conducting wire and the tower, and the grounding wire is important power technology equipment for protecting the safety of maintenance personnel. In actual work, a maintainer only clamps the wire clamps at two ends of the grounding wire on the wire and the tower respectively to consider that the grounding wire is reliably connected with the wire and the tower, but a thicker oxide layer is formed on a bare wire in long-term operation of the power line, and the grounding wire is often not reliably electrically connected with the wire and the tower due to the fact that the oxide layer is not conductive and non-conductive sundries possibly exist at the connection position of the tower, so that the protective effect cannot be really played.
The prior art CN104201513 discloses a misoperation-preventing short-circuit grounding wire based on a positioning rod, which comprises an operating rod, a grounding chuck, a grounding wire leading-out end, a grounding lead and a grounding end chuck, wherein the grounding chuck is connected with the grounding lead through the grounding wire leading-out end, the grounding lead is connected with the grounding end chuck, and an electrified early warning device is arranged on the side of the operating rod, which is close to the grounding chuck; the electrified early warning device comprises an anti-misoperation locking device, the anti-misoperation locking device comprises an electromagnet, an impedance element, an auxiliary chuck and a moving head, the impedance element is connected with the auxiliary chuck after being connected with a grounding chuck and a coil of the electromagnet in series, a leading-out end of a grounding wire is arranged on the auxiliary chuck, the impedance element is connected with an LED, a neon lamp or a buzzer in series to send out audible and visual alarm, the impedance element is formed by connecting a resistor, a capacitor or a resistor capacitor in series, and the technical problem solved by the design is that an electric prompt or locking function is provided.
The prior art CN203983642 discloses a portable multifunctional short circuit grounding wire, which comprises an operating rod, a wire end composite wire clamp, a short circuit grounding wire, a wiring nose and a grounding end composite wire clamp; the lower end face of the wire end composite wire clamp is provided with a longitudinal connecting hole, the side face of the wire end composite wire clamp is provided with a transverse connecting hole, the upper end of the wire end composite wire clamp is provided with an audible and visual alarm high-voltage electroscope, and the audible and visual alarm high-voltage electroscope is electrically connected with the wire end composite wire clamp; the operating rod is connected with the longitudinal connecting hole or the transverse connecting hole through the connecting copper head according to actual needs, and the inside of the operating rod is hollow; the one end of short circuit earth connection with be connected the copper head, the other end runs through the action bars inside and is connected with the compound fastener of earthing terminal through the wiring nose, and the technical problem of solution is: when a distribution box transformer substation or a distribution panel (cabinet) is overhauled in a power failure mode, sudden power supply is carried out, and the problem that operating personnel are subjected to electric shock is caused; when a sudden call comes, sound and light alarm reminding can be given.
In the two prior arts, whether the grounding wire is communicated or not is judged by judging whether the line between the lead and the tower is electrified or not, and the structure of the short-circuit grounding wire is complicated by connecting the lead and the tower through an external line; and the grounding wire which judges whether the conducting wire is really communicated with the grounding grid through the external power supply is not designed.
Disclosure of Invention
The invention aims to provide a composite portable short-circuit grounding wire with a self-detection function, which is selected to be combined with a resistance measuring unit or an alarm prompting unit to detect the electrical connection tightness of the grounding wire, a lead and a grounding grid, so that a maintainer is really under the protection of a connecting wire.
In order to achieve the purpose, the invention provides the following technical scheme: a composite portable short-circuit grounding wire with a self-detection function comprises a wire end composite wire clamp, a composite short-circuit connecting wire, a grounding end composite wire clamp and a detection circuit; two ends of the composite short circuit connecting wire are respectively and electrically connected with the composite wire clamp at the wire end and the composite wire clamp at the grounding end; the composite short circuit connecting wire is characterized in that a detection circuit is arranged inside the composite short circuit connecting wire, two ends of the detection circuit are respectively and electrically connected with the composite wire clamp at the wire end and the composite wire clamp at the grounding end, and a resistance measuring unit or an alarm prompting unit is connected in series in the middle of the detection circuit.
Preferably, the resistance measuring unit comprises a power supply, a resistance detecting unit and a switch, the power supply, the resistance detecting unit and the switch are connected in series, when a short circuit grounding wire is tightly connected with a pole tower (grounding grid) and a lead and the electrical connection is realized, the buzzer can make a sound after the switch is turned on. Therefore, the electrical connection tightness degree of the short circuit grounding wire, the conducting wire and the grounding grid can be judged, and the maintainer is really under the protection of the grounding wire.
The alarm prompting unit comprises a power supply, a buzzer and a switch, the power supply, the buzzer and the switch are connected in series, when a short circuit grounding wire is tightly connected with a tower (grounding grid) and a lead and the electric connection is realized, the buzzer can make a sound after the switch is opened. Therefore, the electrical connection tightness degree of the short circuit grounding wire, the conducting wire and the grounding grid can be judged, and the maintainer is really under the protection of the grounding wire.
Whether the short circuit grounding wire is electrically connected with a tower (grounding grid) and a wire or not is judged through the detection device.
Furthermore, the inner side of any half of the wire end composite wire clamp comprises a wire end additional detection surface which is made of the same material as the wire end composite wire clamp and is positioned on the same plane with the inner side of the wire end composite wire clamp and insulated with the wire end additional detection surface; the inner side of any half of the clamping surface of the grounding terminal composite wire clamp comprises a grounding terminal additional detection surface which is made of the same material as the grounding terminal composite wire clamp and is positioned on the same plane as the inner side of the grounding terminal composite wire clamp and insulated from the grounding terminal additional detection surface, and two ends of the additional detection circuit are respectively electrically connected with the wire end additional detection surface and the grounding terminal additional detection surface.
Furthermore, the detection circuit is connected with a detection circuit connection point of a wire end additional detection surface of the wire end composite wire clamp, and a first detection joint is exposed near the ground end composite wire clamp; and the additional detection surface of the grounding end composite wire clamp is connected with the detection line connection point of the second detection joint positioned outside the grounding end composite wire clamp.
Furthermore, the additional detection face of earthing terminal include that first insulating pad, first detection wire tie point and earthing terminal strip detect the face, first insulating pad for the strip and set up the inboard in the clamping face bottom surface of the compound fastener of earthing terminal, the strip detection face of earthing terminal is laid to the higher authority of first insulating pad, the strip detection face of earthing terminal above be provided with first detection wire tie point, this first detection wire tie point passes through the wire and detects the joint electricity with the second and be connected.
Further, the wire end additional detection surface comprises a second insulation pad, a second detection wire connection point and a wire end strip detection surface, the second insulation pad is strip-shaped and is arranged on the inner side of any half of the wire end composite wire clamp, the wire end strip detection surface is laid on the second insulation pad, the second detection wire connection point is arranged on the wire end strip detection surface, and the second detection wire connection point is electrically connected with the first detection joint through a wire.
Furthermore, the composite short-circuit connecting wire comprises a transparent rubber sheet, a short-circuit connecting wire, a detection wire and an insulating sheet, wherein the outside of the detection wire is covered by the insulating sheet to form a detection circuit, and the detection circuit and the short-circuit connecting wire are covered by the transparent rubber sheet together to form the composite short-circuit connecting wire.
Compared with the prior art, the invention has the beneficial effects that:
1. through an additional accessory detection wire, a detection power supply is added outside, so that current flows through the additional detection wire, the actual grounding wire, the contact surface of the actual grounding wire with the grounding end and the wire, if the current can circulate, the grounding wire is proved to be really electrically connected with the wire and the grounding grid, and the effect of the grounding wire can be really played.
2. The detection circuit is combined with the grounding wire by adding the detection circuit on the grounding wire, so that the complexity of the circuit is avoided, and meanwhile, the detection circuit can be combined with a resistance measurement unit or an alarm prompting unit to detect the electrical connection tightness degree of the grounding wire, a lead and a grounding grid, so that a maintainer is really protected by the grounding wire.
3. The condition that the grounding wire cannot be communicated due to the fact that the oxide layer does not conduct electricity on the wire or the mechanism has a problem and the clamping is not tight can be detected, and accurate judgment can be made.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic diagram of a composite portable short-circuit ground wire with self-detection function,
figure 2 is a top view of a ground terminal composite clamp with a strip-shaped detection surface,
figure 3 is a cross-sectional view of a composite short-circuit connection,
fig. 4 is a front view of a composite clamp with a strip-shaped test surface at the wire end.
In the figure: 1. compound fastener of earthing terminal, 2, the additional detection face of earthing terminal, 3, compound short circuit connecting wire, 4, detection circuitry, 5, compound fastener of wire end, 6, the additional detection face of wire end, 7, first detection joint, 8, the second detects the joint, 9, the strip detection face of earthing terminal, 10, first detection wire tie point, 11, first insulating pad, 12, insulating skin, 13, detection wire, 14, short circuit connecting wire, 15, transparent rubber skin, 16, the second detects the wire tie point, 17, the strip detection face of wire end, 18, the second insulating pad.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to figures 1-4 of the drawings,
the first embodiment is as follows:
as shown in fig. 1: a composite portable short circuit grounding wire with a self-detection function comprises a wire end composite wire clamp 5, a composite short circuit connecting wire 3, a grounding end composite wire clamp 1 and a detection circuit 4; two ends of the composite short circuit connecting wire 3 are respectively and electrically connected with the wire end composite wire clamp 5 and the grounding end composite wire clamp 1; the composite short circuit connecting wire 3 is internally provided with a detection circuit 4, two ends of the detection circuit 4 are respectively and electrically connected with a conductor end composite wire clamp 5 and a grounding end composite wire clamp 1, and a resistance measuring unit or an alarm prompting unit is connected in series in the middle of the detection circuit 4.
Preferably, the resistance measuring unit comprises a power supply, a resistance detecting unit and a switch, the power supply, the resistance detecting unit and the switch are connected in series, when a short circuit grounding wire is tightly connected with a pole tower (grounding grid) and a lead and the electrical connection is realized, the buzzer can make a sound after the switch is turned on. Therefore, the electrical connection tightness degree of the short circuit grounding wire, the conducting wire and the grounding grid can be judged, and the maintainer is really under the protection of the grounding wire.
Whether the short circuit grounding wire is electrically connected with a tower (grounding grid) and a wire or not is judged through the detection device.
Furthermore, the inner side of any half of the wire end composite wire clamp 5 comprises a wire end additional detection surface 6 which is made of the same material as the wire end composite wire clamp 5, is positioned on the same plane with the inner side of the wire end composite wire clamp 5 and is insulated with the wire end additional detection surface; the inner side of any half of the clamping surface of the grounding terminal composite wire clamp 1 comprises a grounding terminal additional detection surface 9 which is made of the same material as the grounding terminal composite wire clamp 1, is positioned on the same plane with the inner side of the grounding terminal composite wire clamp 1 and is insulated from the grounding terminal additional detection surface, and two ends of an additional detection circuit are respectively and electrically connected with the wire end additional detection surface 6 and the grounding terminal additional detection surface 9.
Furthermore, the detection line 4 is connected with the connection point of the detection line 4 of the lead end additional detection surface 6 of the lead end composite wire clamp 5, and a first detection joint 7 is exposed near the ground end composite wire clamp 1; and the additional detection surface 9 of the ground terminal composite wire clamp 1 is connected with the connection point of the detection line 4 of the second detection joint 8 positioned outside the ground terminal composite wire clamp 1.
Further, the additional detection face of earthing terminal include first insulating pad 11, first detection wire tie point 10 and the strip detection face of earthing terminal 9, first insulating pad 11 for the strip and set up the inboard in the clamping face bottom surface of the compound fastener 1 of earthing terminal, the strip detection face of earthing terminal 9 is laid on first insulating pad 11, the above-mentioned of the detection face of earthing terminal be provided with first detection wire tie point 10, this first detection wire tie point 10 is connected with second detection joint 8 electricity through the wire.
Further, the wire end additional detection surface comprises a second insulation pad 18, a second detection wire connection point 16 and a wire end strip detection surface 17, the second insulation pad 18 is strip-shaped and is arranged on the inner side of any half of the wire end composite wire clamp 5, the wire end strip detection surface is laid on the second insulation pad 18, the second detection wire connection point 16 is arranged on the wire end strip detection surface 17, and the second detection wire connection point 16 is electrically connected with the first detection connector 7 through a wire.
Furthermore, the composite short-circuit connecting wire 3 comprises a transparent rubber sheet 15, a short-circuit connecting wire 14, a detection wire 13 and an insulating sheet 12, the outside of the detection wire 13 is covered by the insulating sheet 12 to form a detection circuit 4, and the detection circuit 4 and the short-circuit connecting wire 14 are covered by the transparent rubber sheet 15 together to form the composite short-circuit connecting wire 3.
The working principle is as follows: by connecting the detection device to the first detection terminal 7 and the second detection terminal 8, the flow path of the current injected into the detection device is the first detection terminal 7 → the detection wire 4 → the wire end additional detection surface 6 of the wire end composite clamp 5 → the detection line 4 → the wire end composite clamp 5 → the composite short-circuit connection line 3 → the ground end composite clamp 1 → the pole tower (ground net) → the ground end composite clamp 1 → the ground end additional detection surface 2 → the second detection terminal 8 → the detection device → the first detection terminal 7.
It can be seen that as long as the detection device can detect that the first detection joint 7 and the second detection joint 8 are a passage, it can be proved that the lead and the tower (grounding grid) are electrically connected through the short-circuit connection line.
Example two: according to the above description, preferably, the alarm prompting unit includes a power supply, a buzzer and a switch, which are connected in series, and when the short-circuit grounding wire is tightly connected with the tower (grounding grid) and the lead and the electrical connection is realized, the buzzer makes a sound after the switch is turned on. Therefore, the electrical connection tightness degree of the short circuit grounding wire, the conducting wire and the grounding grid can be judged, and the maintainer is really under the protection of the grounding wire.
Whether the short circuit grounding wire is electrically connected with a tower (grounding grid) and a wire or not is judged through the detection device.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The utility model provides a compound portable short circuit earth connection with self-detection function which characterized in that: the device comprises a lead end composite wire clamp (5), a composite short circuit connecting wire (3), a grounding end composite wire clamp (1) and a detection circuit (4); two ends of the composite short circuit connecting wire (3) are respectively and electrically connected with the wire end composite wire clamp (5) and the grounding end composite wire clamp (1); the composite short circuit connecting wire is characterized in that a detection circuit (4) is arranged inside the composite short circuit connecting wire (3), two ends of the detection circuit are respectively and electrically connected with a wire end composite wire clamp (5) and a grounding end composite wire clamp (1), and a resistance measuring unit or an alarm prompting unit is connected in series in the middle of the detection circuit (4).
2. The composite portable short-circuit ground wire with self-detection function of claim 1, wherein: the resistance measuring unit comprises a power supply, a resistance detecting unit and a switch, and the power supply, the resistance detecting unit and the switch are connected in series.
3. The composite portable short-circuit ground wire with self-detection function as claimed in claim 2, wherein: the alarm prompting unit comprises a power supply, a buzzer and a switch, and the power supply, the buzzer and the switch are connected in series.
4. The composite portable short-circuit ground wire with self-detection function of claim 3, characterized in that: the inner side of any half of the wire end composite wire clamp (5) comprises a wire end additional detection surface (6) which is made of the same material as the wire end composite wire clamp (5), is positioned on the same plane with the inner side of the wire end composite wire clamp (5) and is insulated with the wire end additional detection surface; the inner side of any half of the clamping surface of the grounding terminal composite wire clamp (1) comprises a grounding terminal additional detection surface (9) which is made of the same material as the grounding terminal composite wire clamp (1), is positioned on the same plane as the inner side of the grounding terminal composite wire clamp (1) and is insulated from the grounding terminal additional detection surface, and the two ends of the additional detection line are respectively electrically connected with the wire end additional detection surface (6) and the grounding terminal additional detection surface (9).
5. The composite portable short-circuit ground wire with self-detection function of claim 4, wherein: the detection line (4) is connected with a connection point of the detection line (4) of the lead end additional detection surface (6) of the lead end composite wire clamp (5), and a first detection joint 7 is exposed near the ground end composite wire clamp (1); and the additional detection surface (9) of the ground terminal composite wire clamp (1) is connected with the connection point of the detection line (4) of the second detection joint 8 positioned outside the ground terminal composite wire clamp (1).
6. The composite portable short-circuit ground wire with self-detection function of claim 5, wherein: the additional detection face of earthing terminal include first insulating pad (11), first detection wire tie point (10) and the strip detection face of earthing terminal (9), first insulating pad (11) for the strip and set up the inboard in the clamping face bottom surface of the compound fastener of earthing terminal (1), the strip detection face of earthing terminal (9) is laid to the higher authority of first insulating pad (11), the strip detection face of earthing terminal (9) above be provided with first detection wire tie point (10), this first detection wire tie point (10) are connected with second detection joint (8) electricity through the wire.
7. The composite portable short-circuit ground wire with self-detection function of claim 6, wherein: the wire end additional detection surface comprises a second insulation pad (18), a second detection wire connection point (16) and a wire end strip detection surface (17), the second insulation pad (18) is strip-shaped and is arranged on the inner side of any half of the wire end composite wire clamp (5), the wire end strip detection surface is laid on the second insulation pad (18), the second detection wire connection point (16) is arranged on the wire end strip detection surface (17), and the second detection wire connection point (16) is electrically connected with the first detection joint (7) through a wire.
8. The composite portable short-circuit ground wire with self-detection function of claim 7, wherein: the composite short-circuit connecting wire (3) comprises a transparent rubber sheet (15), a short-circuit connecting wire (14), a detection wire (13) and an insulating rubber sheet (12), the outside of the detection wire (13) is coated by the insulating rubber sheet (12) to form a detection circuit (4), and the detection circuit (4) and the short-circuit connecting wire (14) are coated by the transparent rubber sheet (15) together to form the composite short-circuit connecting wire (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910915866.8A CN110673061B (en) | 2019-09-26 | 2019-09-26 | Composite portable short circuit grounding wire with self-detection function |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910915866.8A CN110673061B (en) | 2019-09-26 | 2019-09-26 | Composite portable short circuit grounding wire with self-detection function |
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| CN110673061A true CN110673061A (en) | 2020-01-10 |
| CN110673061B CN110673061B (en) | 2022-08-26 |
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| CN112230164A (en) * | 2020-10-23 | 2021-01-15 | 安徽森度科技有限公司 | Self-checking method of intelligent grounding device |
| CN115331402A (en) * | 2022-10-11 | 2022-11-11 | 中国航空油料有限责任公司成都分公司 | Self-checking type static wire device of aircraft refueling equipment |
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| CN2749231Y (en) * | 2004-06-01 | 2005-12-28 | 成都市依迈电子化工实业有限公司 | Composite conductive sealing liner |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112230164A (en) * | 2020-10-23 | 2021-01-15 | 安徽森度科技有限公司 | Self-checking method of intelligent grounding device |
| CN112230164B (en) * | 2020-10-23 | 2024-04-02 | 安徽森度科技有限公司 | Self-checking method of intelligent grounding device |
| CN115331402A (en) * | 2022-10-11 | 2022-11-11 | 中国航空油料有限责任公司成都分公司 | Self-checking type static wire device of aircraft refueling equipment |
| CN115331402B (en) * | 2022-10-11 | 2023-01-17 | 中国航空油料有限责任公司成都分公司 | Self-checking type static wire device of aircraft refueling equipment |
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| Publication number | Publication date |
|---|---|
| CN110673061B (en) | 2022-08-26 |
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