Structure for installing ground plate of distribution line

Abstract

The present invention relates to an installation structure for a grounding plate of a power distribution line, comprising a first grounding section, a second grounding section, a compartment, an inspection terminal section, a resistance meter, an inspection control section, a connection means, a circuit breaker means, a communication section, a management server, and a manager terminal. By frequently inspecting for disconnection or functional degradation of the grounding wire and replacing aging grounding wires before their service life is reached, the invention ensures that the grounding section always maintains normal lightning protection functions, thereby preventing safety accidents, material damage, and human casualties caused by lightning. Furthermore, it prevents functional failure of the inspection section even during the process of lightning discharge into the ground through the grounding section. It ensures the safety of the inspection equipment by performing regular inspections during normal times, conducting intensive inspections before periods of frequent lightning strikes, and refraining from inspections when a lightning forecast is issued. Additionally, it allows inspection results to be stored in a database on the management server for management by utility pole and enables a manager to remotely monitor the results, while facilitating the easy replacement of the grounding wire. It can proceed.

Description

Technology Field

[0001] The present invention relates to a structure for installing grounding plates in distribution lines within the field of power distribution technology. More specifically, it relates to a structure for installing grounding plates in distribution lines that allows for the frequent inspection of grounding wires for disconnection or functional degradation, thereby identifying and replacing aging grounding wires even before their service life is reached, so that the grounding part can always maintain a normal lightning protection function, thereby preventing safety accidents, material damage, and human casualties caused by lightning. It also ensures that no functional failure occurs in the inspection part even during the process of lightning discharge into the ground through the grounding part, ensures that regular inspections are performed during normal times, performs intensive inspections before the arrival of a period with frequent lightning strikes, and ensures the safety of the inspection equipment by not performing inspections when a lightning forecast is issued, stores inspection results in a database on a management server to manage them by utility pole, allows an administrator to check the inspection results from a remote location, and enables the replacement of grounding wires to be carried out easily. Background Technology

[0002] Generally, lightning refers to the phenomenon in which electrostatic electrical energy, generated by being charged—such as by static electricity—due to the flow of active air currents, is discharged to the surface of the earth.

[0003] Meanwhile, power distribution lines are susceptible to lightning strikes, equipment malfunctions, and damage to life and property.

[0004] Therefore, in the case of power distribution lines, grounding devices are installed on utility poles to rapidly discharge lightning into the ground in order to prevent damage to life and property caused by lightning strikes.

[0005] In conventional power distribution lines, an overhead ground wire installed at the top of a utility pole where a crossbar is installed, a grounding wire connected to the overhead ground wire with its upper half located outside the utility pole and its lower half located underground through the inside of the utility pole, a horizontal grounding rod connected to the grounding wire, multiple grounding rods connected vertically to the horizontal grounding rod, and multiple grounding plates connected to the bottom of the grounding rods and buried underground are installed to prevent damage to the power distribution line caused by lightning strikes by discharging into the ground through the overhead ground wire, grounding wire, horizontal grounding rods, vertical grounding rods, and grounding plates when a lightning strike occurs.

[0006] As prior art, Korean Published Patent No. 10-2013-0104038 (September 25, 2013), titled "Overhead Distribution Line Power Loss Reduction Device," discloses a technology that prevents power loss caused by the induced current of an overhead distribution line by blocking the induced current induced in the overhead ground wire, thereby allowing large currents flowing through the overhead ground wire due to lightning strikes, etc., to pass through while blocking the induced current induced in the overhead ground wire. This technology is configured such that the device is installed at a point separated from an overhead ground wire or a jumper wire connecting the overhead ground wire at a predetermined location, and the separated ends of the overhead ground wire or jumper wire are inserted into the device facing each other, and discharge plates are positioned inside the device facing each other.

[0007] However, Korean Public Patent No. 10-2013-0104038 is equipped with a discharge plate to allow large currents flowing through overhead ground wires due to lightning strikes, etc., to pass through while blocking induced currents in the overhead ground wires, and the discharge plate portion is protected by a case; however, it has the disadvantage that the power loss reduction effect is somewhat insufficient.

[0008] As a prior art that improves upon these drawbacks, Korean Registered Patent No. 10-1484268 (January 12, 2015), titled "Device for Monitoring and Reducing Power Loss in Overhead Distribution Lines," discloses a technology that enhances the power loss reduction effect by configuring the case so that the jumper wire connecting the overhead ground wire is separated at an arbitrary location to cut off the induced current induced in the overhead ground wire of an overhead distribution line, the jumper wire is separated at the separated point, the separated ends of the jumper wire are inserted into the case facing each other, and a pair of discharge plates are connected to each end of the jumper wire inserted into the case and positioned inside the case facing each other. A mesh insulator is grounded and fixed to the pair of discharge plates in the case to always keep the pair of discharge plates separated.

[0009] However, the aforementioned prior art involves installing an overhead distribution line power loss detection and reduction device, comprising a case, a discharge plate, an insulating mesh, a flash detection sensor, and a wireless communication unit, in the middle of a jumper wire connecting an overhead ground wire. Since the jumper wire is unable to withstand the weight of the overhead distribution line power loss detection and reduction device, there is a risk that the jumper wire may sag downwards and come into contact with the overhead ground wire or the overhead ground wire support, thereby degrading or losing its function.

[0010] In addition, the aforementioned prior art has the problem that construction becomes cumbersome because a connection means for connecting the overhead ground wire and the ground wire must be separately installed at the upper part of the overhead ground wire support at a certain interval, separately from the overhead distribution line power loss monitoring and reduction device.

[0011] As prior art to improve these problems, Korean Registered Patent No. 10-1514020 (April 15, 2015), "Device for Monitoring and Reducing Power Loss in Overhead Distribution Lines," can reduce power loss caused by induced currents by blocking small currents, such as induced currents in the overhead ground wire caused by the current flowing in the power line, through discharge plates arranged at regular intervals and connected to the overhead ground wire via overhead ground wire connectors, while conducting large currents, such as lightning currents, through arc discharge. Furthermore, since the overhead ground wire connector connected to one side of the overhead ground wire is connected to the ground wire connector connected to the ground wire, the lightning current can be grounded through the ground wire, thereby preventing accidents caused by lightning currents. Additionally, while the overhead ground wire and ground wire are connected to the overhead ground wire connector and the ground wire connector, a flange is formed on the ground wire connection part integrally formed at the bottom of the lower insulating housing, and a flange is formed on the top of the overhead ground wire support, and these are joined by bolts and nuts, thereby [referring to] the utility pole A technology is disclosed that significantly improves constructability by allowing overhead ground wires, power loss detection and reduction means, and grounding wires to be installed quickly and easily in a single operation, as they can be installed at the top.

[0012] Meanwhile, the grounding wire constituting the grounding device may be damaged or severed over time. Since the aforementioned prior art technologies install the grounding wire simply by burying it inside the utility pole, it is impossible to check for severed or damaged wire without disassembling it. Consequently, there is a problem in that the grounding function cannot be properly performed if the grounding wire is severed or damaged.

[0013] In addition, if the grounding wire deteriorates and its conductivity decreases, it may not be able to effectively discharge lightning strikes. If there is no device to inspect it, it will inevitably be left unattended until it is replaced after reaching the lifespan stipulated in the management rules. Consequently, if the grounding wire fails to perform its function before reaching its lifespan, there is a risk of serious accidents such as electric shock, fire, and line damage caused by lightning strikes. Prior art literature

[0014] Republic of Korea Published Patent No. 10-2013-0104038 (September 25, 2013) "Device for reducing power loss in overhead distribution lines" Republic of Korea Registered Patent No. 10-1484268 (January 12, 2015) "Device for monitoring and reducing power loss in overhead distribution lines" Republic of Korea Registered Patent No. 10-1514020 (April 15, 2015) "Device for monitoring and reducing power loss in overhead distribution lines" The problem to be solved

[0015] Therefore, the objective of the present invention is to provide a structure for installing a grounding plate on a power distribution line that prevents safety accidents, material damage, and human casualties caused by lightning by frequently inspecting for disconnection or functional degradation of the grounding wire and replacing the aging grounding wire before its service life is reached, thereby ensuring that the grounding part always maintains a normal lightning protection function; prevents functional failure of the inspection part even during the process of discharge into the ground through the grounding part when lightning occurs; ensures the safety of the inspection equipment by ensuring regular inspections during normal times, conducting intensive inspections before the arrival of a period with frequent lightning strikes, and not conducting inspections when there is a lightning forecast; stores inspection results in a database on a management server to manage them by utility pole, allows an administrator to check the inspection results from a remote location, and enables the replacement of the grounding wire to be carried out easily. means of solving the problem

[0016] To achieve the above objectives, the present invention comprises: a utility pole and a cross bar fixed to the utility pole; an overhead ground wire supported by an overhead ground wire support member at the top of the utility pole; a first grounding member with its upper end connected to the overhead ground wire and its lower end buried underground; a second grounding member arranged parallel to the first grounding member, with its upper end connected to the upper end of the first grounding member and its lower end buried underground; a compartment buried at the rear of the lower end of the utility pole; an inspection terminal member connected to the lower ends of the first and second grounding members and located within the compartment; a resistance meter installed within the compartment and connected to the inspection terminal member to measure resistance; an inspection control member installed within the compartment who receives the resistance measurement signal from the resistance meter and compares the resistance measurement value with the initial measurement value measured at the time of initial installation, and outputs a usable signal if the initial measurement value and the resistance measurement value are the same, an inspection required signal if the resistance measurement value is greater than the initial measurement value, and an immediate replacement signal if the resistance measurement value is '0', along with the unique ID of the resistance meter; and a connection means installed within the compartment to connect the inspection terminal member and the resistance meter. A structure for installing a grounding plate of a power distribution line is provided, comprising: a shielding means for shielding an inspection terminal section in an insulated state; a communication unit installed within a compartment and transmitting an output signal of an inspection control unit; a management server that receives available signals, inspection required signals, and immediate replacement signals transmitted from the communication unit via a network along with the unique ID of a resistance meter and stores them in a database; and a manager terminal that receives the output signal transmitted from the communication unit via a mobile communication network along with the unique ID of a resistance meter and displays the output signal on a screen.

[0017] In addition, the grounding plate installation structure of the power distribution line of the present invention comprises a first grounding section including a first grounding rod embedded in a utility pole, with its upper end connected to an overhead ground wire and its lower end protruding from the lower end of the utility pole, a first horizontal grounding rod horizontally connected to the lower end of the first grounding rod and embedded in the ground, a plurality of first vertical grounding rods vertically connected to the first horizontal grounding rod and embedded in the ground, and a plurality of first grounding plates connected to the lower end of the first vertical grounding rod and embedded in the ground, and a second grounding section including a second grounding rod embedded in a utility pole, with its upper end connected to the first grounding rod and its lower end protruding from the lower end of the utility pole, a second horizontal grounding rod horizontally connected to the lower end of the second grounding rod and embedded in the ground, a plurality of second vertical grounding rods vertically connected to the second horizontal grounding rod and embedded in the ground, and a plurality of second grounding plates connected to the lower end of the second vertical grounding rod and embedded in the ground, and the compartment is the first grounding section and It is composed of a compartment body with an open top that is buried underground so as to be isolated from the lower part of the second grounding section, and a compartment cover that opens and closes the open top of the compartment body; the inspection terminal section includes first and second inspection rods located inside the compartment and connected to first and second horizontal grounding rods, first and second inspection terminals located inside the compartment and connected to the first and second inspection rods, and first and second insulation blocks surrounding the first and second inspection terminals; the resistance meter is configured not to display the measured resistance value but to output it through a wire and transmit it to the inspection control unit; the inspection control unit determines that the first grounding rod and the second grounding rod are usable if the inspection resistance value is the same as the initial resistance value measured at the time of initial installation or is within a predetermined allowable error range and outputs a usability signal along with the unique ID of the resistance meter; and if the inspection resistance value is greater than the predetermined allowable error range, it determines that the first and second grounding rods have corroded, causing a decrease in cross-sectional area and reduced conductivity. It is configured to output an inspection need signal along with the unique ID of the resistance meter when it is determined that the first and second grounding rods need to be replaced, and if the inspection resistance value is infinite, to output an immediate replacement signal along with the unique ID of the resistance meter when it is determined that the first and second grounding rods are disconnected.The connection means includes first and second connection rods connected to first and second inspection terminals, and first and second horizontal solenoids having first and second horizontal operating rods installed horizontally within the compartment and coupled to the first and second connection rods to operate horizontally moving up and down; the shielding means includes first and second insulating covers capable of enveloping the first and second inspection terminals, and first and second vertical solenoids having first and second vertical operating rods installed vertically within the compartment and coupled to the lower ends of the first and second insulating covers to operate up and down; the communication unit transmits available signals, signals requiring inspection, and immediate replacement signals via a network according to the control of the inspection control unit; the management server receives available signals, signals requiring inspection, and immediate replacement signals via the network and stores them in a database so that they can be utilized for the management of distribution lines; and the manager terminal receives available signals, signals requiring inspection, and immediate replacement signals via the network and mobile communication network and displays them on a screen, thereby enabling the manager to quickly grasp the situation in real time and respond promptly even from a remote location. It is characterized by enabling. Effects of the invention

[0018] According to the grounding plate installation structure for a power distribution line of the present invention, a first grounding section, a second grounding section, a compartment, an inspection terminal section, a resistance meter, an inspection control section, a connection means, a circuit breaker means, a communication section, a management server, and a manager terminal are provided. By frequently inspecting for disconnection or functional degradation of the grounding wire and replacing the aging grounding wire before its service life is reached, the grounding section can always maintain a normal lightning protection function, thereby preventing safety accidents, material damage, and human casualties caused by lightning. Furthermore, it ensures that no functional failure occurs in the inspection section even during the process of lightning discharge into the ground through the grounding section. It also ensures the safety of the inspection equipment by allowing regular inspections during normal times, intensive inspections before the arrival of periods with frequent lightning strikes, and refraining from inspections when a lightning forecast is issued. Additionally, it allows inspection results to be stored as a database on the management server for management by utility pole, enables a manager to remotely monitor the inspection results, and facilitates the easy replacement of the grounding wire. there is. Brief explanation of the drawing

[0019] FIGS. 1 to 7 show preferred embodiments of a grounding plate installation structure for a power distribution line according to the present invention. FIGS. 1 and 2 are perspective views of a grounding plate installation structure for a power distribution line according to the present invention. FIG. 3 is an exploded perspective view, FIG. 4 is a longitudinal front view cut along the center of the utility pole, FIG. 5 is a block diagram of a resistance meter, an inspection control unit, a connection means, a shielding means, a management server, and an administrator terminal. FIG. 6 is a longitudinal side view showing the non-inspection state of the inspection means, Figure 7 is a longitudinal side view showing the inspection state of the inspection means. Specific details for implementing the invention

[0020] Hereinafter, the structure for installing a grounding plate of a power distribution line according to the present invention will be described in detail according to a preferred embodiment shown in the attached drawings.

[0021] FIGS. 1 and 2 are perspective views of the grounding plate installation structure of the power distribution line according to the present invention, FIG. 3 is an exploded perspective view, FIG. 4 is a longitudinal front view cut along the center of a utility pole, and FIG. 5 is a block diagram of a resistance meter, an inspection control unit, a connection means, a shielding means, a management server, and a manager terminal.

[0022] Referring to FIGS. 1 and 5, the power distribution line includes a utility pole (EP), a reinforcing bar (10) fixed to the utility pole (EP), and an overhead ground wire (20) supported by an overhead ground wire support member (30) at the top of the utility pole (EP).

[0023] In addition, it includes a first grounding section (100), a second grounding section (200), a compartment (300), an inspection terminal section (400), a resistance meter (500), an inspection control section (600), a connection means (700), a blocking means (800), a communication section (900), a management server (1000), and a manager terminal (1100).

[0024] The first grounding part (100) has its upper end connected to the overhead ground wire (20) and its lower end buried in the ground.

[0025] The second grounding section (200) is arranged side by side with the first grounding section (100), with its upper end connected to the upper end of the first grounding section (100) and its lower end buried in the ground.

[0026] The compartment (300) is buried in the ground at the lower rear of the utility pole (EP).

[0027] The inspection terminal section (400) is configured to be connected to the lower portions of the first and second grounding sections (100, 200) and located within the compartment (300).

[0028] The resistance meter (500) is installed within the compartment (300) and is configured to be connected to the inspection terminal (400) to measure resistance.

[0029] The inspection control unit (600) is installed within the compartment (300) and receives a resistance measurement signal from the resistance meter (500). It is configured to compare the resistance measurement value with the initial measurement value measured at the time of initial installation, and output a signal indicating availability if the initial measurement value and the resistance measurement value are the same, a signal indicating that an inspection is required if the resistance measurement value is greater than the initial measurement value, and an immediate replacement signal if the resistance measurement value is '0', along with the unique ID of the resistance meter (500).

[0030] The connection means (700) is installed within the compartment (300) and configured to connect the inspection terminal part (400) and the resistance meter (500).

[0031] The blocking means (800) is configured to shield the inspection terminal part (400) in an insulated state.

[0032] The communication unit (900) is installed within the compartment (300) and is configured to transmit the output signal of the inspection control unit (600).

[0033] The management server (1000) is configured to receive available signals, signals requiring inspection, and immediate replacement signals transmitted from the communication unit (900) via a network along with the unique ID of the resistance meter (500) and to database them.

[0034] The administrator terminal (1100) is configured to receive the output signal transmitted from the communication unit (900) along with the unique ID of the resistance meter (500) through a mobile communication network and display the output signal on the screen.

[0035] The first grounding section (100) includes a first grounding rod (110) that is embedded in a utility pole (EP), has its upper end connected to an overhead ground wire (20), and has its lower end protruding from the lower end of the utility pole (EP); a first horizontal grounding rod (120) that is horizontally connected to the lower end of the first grounding rod (110) and embedded in the ground; a plurality of first vertical grounding rods (130) that are vertically connected to the first horizontal grounding rod (120) and embedded in the ground; and a plurality of first grounding plates (140) that are connected to the lower end of the first vertical grounding rod (130) and embedded in the ground.

[0036] The second grounding section (200) includes a second grounding rod (210) that is embedded in a utility pole (EP), with its upper end connected to a first grounding rod (110) and its lower end protruding from the lower end of the utility pole (EP); a second horizontal grounding rod (220) that is horizontally connected to the lower end of the second grounding rod (210) and embedded in the ground; a plurality of second vertical grounding rods (230) that are vertically connected to the second horizontal grounding rod (220) and embedded in the ground; and a plurality of second grounding plates (240) that are connected to the lower end of the second vertical grounding rod (230) and embedded in the ground.

[0037] The first grounding rod (110), the first horizontal grounding rod (120), the first vertical grounding rod (130), the second grounding rod (210), the second horizontal grounding rod (220), and the second vertical grounding rod (230) may be composed of copper rods or may use insulated wires in which copper wires are covered with an insulating sheath.

[0038] A first protective tube (150) and a second protective tube (250) are installed on the utility pole (EP), protruding from the top and bottom respectively, into which a first grounding rod (110) and a second grounding rod (210) are inserted.

[0039] The first protective tube (150) and the second protective tube (250) can be embedded in the utility pole (EP) by forming them while pre-fixing them to the mold with the reinforcing mesh.

[0040] The first protective tube (150) and the second protective tube (250) use synthetic resin tubes that have insulating properties.

[0041] A first grounding section (100) composed of a first grounding rod (110), a first horizontal grounding rod (120), a first vertical grounding rod (130), and a first grounding plate (140), and a second grounding section (200) composed of a second grounding rod (210), a second horizontal grounding rod (220), a second vertical grounding rod (230), and a second grounding plate (250) each perform a grounding function of discharging lightning into the ground.

[0042] That is, when lightning strikes, it is discharged into the ground through the first grounding part (100) and the second grounding part (200).

[0043] The first grounding rod (110), the first horizontal grounding rod (120), the first vertical grounding rod (130), the second grounding rod (210), the second horizontal grounding rod (220), and the second vertical grounding rod (230) are formed of copper rods, and the grounding plate (140) and the second grounding plate (240) are composed of copper plates.

[0044] The first grounding rod (110) and the second grounding rod (210) can be connected by welding.

[0045] The first protective tube (150) and the second protective tube (250) can be embedded in the utility pole (EP) by forming them while pre-fixing them to the mold with the reinforcing mesh.

[0046] The compartment (300) is buried underground so as to be isolated from the lower portions of the first grounding portion (100) and the second grounding portion (200), and is composed of a compartment body (310) with an open top and a compartment cover (320) that opens and closes the open top portion of the compartment body (310).

[0047] The compartment body (310) and the compartment cover (320) can be constructed of concrete and waterproofed to protect the resistance meter (500), inspection control unit (600), and communication unit (900) installed inside.

[0048] The terminal section (400) includes first and second inspection rods (410, 420) connected to first and second horizontal grounding rods (120, 220) and located inside the compartment (300) by penetrating it, first and second inspection terminals (430, 440) connected to first and second inspection rods (410, 420) and located inside the compartment (300), and first and second insulation blocks (450, 460) surrounding the first and second inspection terminals (430, 440).

[0049] The first and second inspection rods (410, 420) can be connected to the first and second horizontal grounding rods (120, 220) by welding.

[0050] The first and second inspection terminals (430, 440) can be connected by pressing them against the first and second inspection rods (410, 420).

[0051] The resistance meter (500) can be a resistance meter that measures the resistance of a conventional wire, etc.

[0052] However, the resistance meter (500) is configured not to display the measured resistance value, but to output it through a wire and transmit it to the inspection control unit (600).

[0053] The inspection control unit (600) is configured to determine that the first grounding rod (110) and the second grounding rod (210) are usable if the inspection resistance value is the same as the initial resistance value measured at the time of initial installation or within a predetermined allowable error range, and output a usable signal along with the unique ID of the resistance meter (500); if the inspection resistance value is greater than the predetermined allowable error range, it determines that the first and second grounding rods (110, 210) are corroded and their cross-sectional area has decreased, thereby reducing their conductivity, and determines that the first and second grounding rods (110, 210) need to be replaced, and outputs an inspection required signal along with the unique ID of the resistance meter (500); and if the inspection resistance value is infinite, it determines that the first grounding rod (110) and the second grounding rod (210) are disconnected, and outputs an immediate replacement signal along with the unique ID of the resistance meter (500).

[0054] The connection means (700) includes first and second connection rods (710, 720) connected to first and second inspection terminals (430, 440), and first and second horizontal solenoids (730, 740) having first and second horizontal operating rods (731, 741) that are installed horizontally within the compartment (300) and coupled to the first and second connection rods (710, 720) to operate horizontally.

[0055] The first and second horizontal solenoids (730, 740) may be of a type in which the first and second horizontal operating rods (731, 741) advance when power is applied and the first and second horizontal operating rods (731, 741) retract when power is cut off.

[0056] It is preferable that the first and second horizontal solenoids (730, 740) form the first and second horizontal operating rods (731, 741) of an insulating material.

[0057] The first and second connecting rods (710, 720) are connected to the resistance meter (500) through the first and second lead wires (510, 520).

[0058] It is preferable that the first and second inspection terminals (430, 440) have a trumpet-shaped end that opens toward the interior of the compartment (300), and the tip of the first and second connecting rods (710, 720) has a conical end corresponding to the trumpet-shaped end so that the first and second connecting rods (710, 720) can be smoothly connected to the first and second inspection terminals (430, 440).

[0059] The shielding means (800) includes first and second insulating covers (810, 820) capable of covering first and second inspection terminals (430, 440), and first and second vertical solenoids (830, 840) having first and second vertical operating rods (831, 841) that are vertically installed within the compartment (300) and coupled to the lower ends of the first and second insulating covers (810, 820) to operate up and down.

[0060] The first and second vertical solenoids (830, 840) may be of a type in which the first and second vertical operating rods (831, 841) descend when power is applied and the first and second vertical operating rods (831, 841) ascend when power is cut off.

[0061] FIG. 6 is a longitudinal side view showing the non-inspection state of the inspection means, and FIG. 7 is a longitudinal side view showing the inspection state of the inspection means.

[0062] Referring to FIG. 6, in a non-inspection state, the first and second horizontal operating rods (731, 741) of the first and second horizontal solenoids (730, 740) are retracted by the control of the inspection control unit (600), causing the first and second connecting rods (710, 720) coupled to their ends to detach from the first and second inspection terminals (430, 440), and at the same time, the first and second vertical operating rods (831, 841) of the first and second vertical solenoids (830, 840) are lowered, causing the first and second insulating covers (810, 820) coupled to their upper ends to lower, thereby separating the first and second inspection terminals (430, 440) and the first and second insulating blocks (450, 460) from the first and second insulating covers (810, The interior of the compartment (300) is shielded by 820).

[0063] In this state, the first and second grounding parts (100, 200) perform grounding operations against normal lightning strikes.

[0064] At this time, the first and second inspection terminals (430, 440) and the first and second insulation blocks (450, 460) exposed to the interior of the compartment (300) are shielded from the interior of the compartment (300) by the first and second insulation covers (810, 820), so that no discharge occurs into the interior of the compartment (300) during the underground discharge process of lightning, and thus the connection means (700), shielding means (800), inspection control unit (600), and communication unit (900) installed inside the compartment (300) are safely protected from damage.

[0065] Referring to FIG. 7, in the inspection state, the first and second vertical operating rods (831, 841) of the first and second vertical solenoids (830, 840) are lowered by the control of the inspection control unit (600), and the first and second insulating covers (810, 820) coupled to the upper ends are lowered so that the first and second inspection terminals (430, 440) and the first and second insulating blocks (450, 460) are exposed. At the same time, the first and second horizontal operating rods (731, 741) of the first and second horizontal solenoids (730, 740) are advanced so that the first and second connecting rods (710, 720) coupled to the ends are inserted into and connected to the first and second inspection terminals (430, 440).

[0066] In this state, the resistance meter (500) is connected to the lead wires (510, 520), the first and second connection rods (710, 720), the first and second inspection terminals (430, 440), the first and second inspection rods (410, 420), the first and second horizontal grounding rods (120, 220), and the first and second grounding rods (110, 210) to measure resistance.

[0067] The inspection control unit (600) receives the resistance measurement signal from the resistance meter (500) and compares the resistance measurement value with the initial measurement value measured at the time of initial installation. If the initial measurement value and the resistance measurement value are the same, it outputs a signal indicating that the resistance measurement value is available; if the resistance measurement value is greater than the initial measurement value, it outputs a signal indicating that an inspection is required; and if the resistance measurement value is '0', it outputs an immediate replacement signal along with the unique ID of the resistance meter (500).

[0068] In addition, the inspection control unit (600) may control the connection means (700) and the blocking means (800) so that the inspection operation is not performed when there is a lightning warning.

[0069] The communication unit (900) transmits available signals, inspection required signals, and immediate replacement signals through the network according to the control of the inspection control unit (600).

[0070] The management server (1000) receives available signals, signals requiring inspection, and signals requiring immediate replacement through a network, stores them in a database, and enables them to be used for the management of the distribution line.

[0071] The administrator terminal (1100) receives available signals, signals requiring inspection, and signals for immediate replacement through a network and a mobile communication network and displays them on a screen, thereby enabling the administrator to quickly identify the situation in real time and respond quickly even from a remote location.

[0072] By conducting these inspections regularly after initial installation, the grounding wire can be replaced in a timely manner when its current conduction and grounding performance deteriorates due to aging, thereby maintaining normal current conduction and grounding performance and, consequently, preventing safety accidents caused by lightning strikes.

[0073] As described above, this description has been explained with specific details such as specific components, limited embodiments, and drawings; however, this is provided merely to aid in a more comprehensive understanding of the invention, and the invention is not limited to the above embodiments. A person skilled in the art can make various modifications and variations from this description.

[0074] Therefore, the scope of the present invention should not be limited to the described embodiments, and all things equivalent to or having equivalent variations to the claims set forth below, as well as the claims set forth below, shall be considered to fall within the scope of the concept of the present invention. Explanation of the symbols

[0075] EP : Utility pole 100 : 1st grounding section 200 : Second grounding section 300 : Compartment 400 : Inspection terminal section 500 : Resistance meter 600: Inspection control unit 700: Connection means 800 : Shielding means 900 : Communication part 1000 : Management Server 1100 : Administrator Terminal

Claims

Claim 1 A utility pole and a crossarm fixed to the utility pole; an overhead ground wire supported by an overhead ground wire support member at the top of the utility pole; a first grounding section with its upper end connected to the overhead ground wire and its lower end buried underground; a second grounding section arranged parallel to the first grounding section, with its upper end connected to the upper end of the first grounding section and its lower end buried underground; a compartment buried at the rear of the bottom of the utility pole; an inspection terminal section connected to the lower ends of the first and second grounding sections and located within the compartment; a resistance meter installed within the compartment and connected to the inspection terminal section to measure resistance; an inspection control section installed within the compartment that receives the resistance measurement signal from the resistance meter, compares the resistance measurement value with the initial measurement value measured at the time of initial installation, and outputs a usable signal if the initial measurement value and the resistance measurement value are the same, an inspection required signal if the resistance measurement value is greater than the initial measurement value, and an immediate replacement signal if the resistance measurement value is '0', along with the unique ID of the resistance meter; a connection means installed within the compartment to connect the inspection terminal section and the resistance meter; and a shielding means for shielding the inspection terminal section in an insulated state. A communication unit installed within a compartment and transmitting output signals from an inspection control unit; and a management server that receives available signals, inspection required signals, and immediate replacement signals transmitted from the communication unit via a network along with the unique ID of the resistance meter and stores them in a database; It includes a manager terminal that receives an output signal transmitted from a communication unit along with the unique ID of a resistance meter via a mobile communication network and displays the output signal on a screen; wherein the first grounding unit includes a first grounding rod buried in a utility pole, with its upper end connected to an overhead ground wire and its lower end protruding from the lower end of the utility pole, a first horizontal grounding rod horizontally connected to the lower end of the first grounding rod and buried underground, a plurality of first vertical grounding rods vertically connected to the first horizontal grounding rod and buried underground, and a plurality of first grounding plates connected to the lower end of the first vertical grounding rod and buried underground; and the second grounding unit includes a second grounding rod buried in a utility pole, with its upper end connected to the first grounding rod and its lower end protruding from the lower end of the utility pole, a second horizontal grounding rod horizontally connected to the lower end of the second grounding rod and buried underground, and a plurality of second vertical grounding rods vertically connected to the second horizontal grounding rod and buried underground.It includes a plurality of second grounding plates connected to the lower end of the second vertical grounding rod and buried in the ground; the compartment is buried in the ground so as to be isolated from the lower end of the first grounding section and the second grounding section, and is composed of a compartment body with an open top and a compartment cover that opens and closes the open top of the compartment body; the inspection terminal section includes first and second inspection rods connected to the first and second horizontal grounding rods and located inside the compartment by penetrating it, first and second inspection terminals connected to the first and second inspection rods and located inside the compartment, and first and second insulation blocks surrounding the first and second inspection terminals; the resistance meter is configured not to display the measured resistance value but to output it through a wire and transmit it to the inspection control unit; the inspection control unit determines that the first grounding rod and the second grounding rod are usable if the inspection resistance value is the same as the initial resistance value measured at the time of initial installation or is within a predetermined allowable error range, outputs a usability signal along with the unique ID of the resistance meter, and the inspection resistance value If the value is greater than a predetermined tolerance range, it is determined that the first and second grounding rods have corroded, causing a decrease in cross-sectional area and reduced conductivity, and thus the first and second grounding rods need to be replaced, and an inspection requirement signal is output along with the unique ID of the resistance meter; if the inspection resistance value is infinite, it is determined that the first and second grounding rods are disconnected, and an immediate replacement signal is output along with the unique ID of the resistance meter. The connection means includes first and second connection rods connected to the first and second inspection terminals, and first and second horizontal solenoids having first and second horizontal operating rods installed horizontally within the compartment and coupled to the first and second connection rods to operate horizontally moving back and forth. The shielding means includes first and second insulating covers capable of covering the first and second inspection terminals, and first and second vertical operating rods installed vertically within the compartment and coupled to the bottom of the first and second insulating covers to operate up and down. It includes a second vertical solenoid, and the communication unit transmits the available signal, the inspection required signal, and the immediate replacement signal via the network according to the control of the inspection control unit, and the management server transmits the available signal,A structure for installing a grounding plate on a distribution line, characterized by receiving signals requiring inspection and signals requiring immediate replacement, storing them in a database for use in the management of the distribution line, and enabling the manager terminal to receive signals indicating availability, signals requiring inspection, and signals requiring immediate replacement via a network and mobile communication network and display them on a screen, thereby allowing the manager to quickly grasp the situation in real time and respond promptly even from a remote location. Claim 2 delete

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