Grounding device for electric power distribution lines

Abstract

The present application provides a grounding facility for distribution electric wire. The distribution electric pole welding facility is a grounding terminal box installed on the electric pole, which electrically connects the distribution grounding wire of the distribution line and the ground grounding wire in the ground together, and a distribution electric pole welding facility installed at the end of the ground grounding wire, which includes a grounding assembly comprising a grounding terminal. The grounding assembly can pass through the connected grounding wire rod, the grounding terminal box of the grounding wire at the lower end of the grounding rod, and the grounding terminal box of the grounding wire of the grounding wire. The grounding terminal can pass through the grounding terminal of the grounding wire of the grounding wire. In order to facilitate the control, it is installed at the top of the rod extension pipe, seals the top of the rod extension pipe, includes smoke generating material for generating smoke, and rod smoke cap for installing electric igniter. The smoke material is ignited by electricity. The electric igniter works by the power supply of the battery, so as to generate smoke on the smoke material.

Description

Technical Field

[0001] This invention relates to a grounding facility for power distribution poles that ground them to the ground. Background Technology

[0002] Generally, grounding wires are installed on power distribution poles to ground the power distribution lines or electrical equipment connected to them. The grounding wires are connected to the grounding rods buried in the power distribution poles.

[0003] The grounding facility for power distribution poles, which is to ground power distribution poles, was previously initiated in Korean Patent Registration No. 10-2701626 (Announcement No. 2024.9.2).

[0004] The aforementioned traditional power distribution wire grounding facility consists of a grounding wire running through the power distribution wire; a grounding rod grounding the grounding wire into the ground via a conductor; a grounding body including a connector connecting the grounding wire and the grounding rod, but the grounding wire is combined with the grounding rod to pull the grounding wire into the ground; two or more auxiliary grounding pins that expand the grounding area when the grounding body is buried underground, one of which is connected to a hinge on the upper part of the perimeter of the grounding body; two or more elastic members that exert elastic force to expand the outer side of each of the auxiliary grounding pins when the grounding body and the auxiliary grounding pins are respectively installed at the joint of the grounding body and the auxiliary grounding pins; and a head member clamped at the lower part of the grounding body, which applies pressure to each other of the auxiliary grounding pins to suppress the elastic force of the elastic members in order to prevent the auxiliary grounding pins from expanding when the grounding body is buried. Combined with the grounding wire, the part of the grounding rod buried in the ground expands in the ground, thereby having the advantage of conveniently expanding the grounding area.

[0005] However, in traditional power distribution main welding machine grounding facilities, the grounding rod is exposed on the ground surface at the top of the grounding body, which is easily damaged. Moreover, when buried underground, it is difficult to find the buried location of the grounding rod from the outside, making maintenance difficult. If a new grounding rod is buried, the original grounding rod is difficult to remove, leaving it in the underground buried state, which poses an environmental pollution problem. Summary of the Invention

[0006] The problem that the invention aims to solve

[0007] This invention is proposed to solve the above-mentioned problems. The problem to be solved by this invention is to install a smoke screen cap on the grounding assembly buried underground. The smoke screen is generated simply by contacting the battery with the battery terminal. The purpose is to make it easy to know the location of the grounding assembly buried, to make it easy to maintain the grounding rod, or to provide a power distribution grounding facility that can eliminate the existing grounding assembly even if new landfill is carried out, thus preventing environmental pollution.

[0008] Furthermore, the purpose of this invention is to provide a grounding facility for the main welding point of a power distribution system. By supporting the grounding rod with the elastic force of the rod insertion spring, removing the rod soft film cap from the rod extension tube, and allowing the grounding rod to emerge from the rod extension tube through the rod pressure rod, foreign objects fixed on the grounding rod are removed, thereby improving the grounding performance of the grounding rod.

[0009] Furthermore, the purpose of this invention is to install a pressure switch on the smoke exhaust port, which only opens the smoke exhaust port when smoke is generated, thereby providing a grounding facility for welding power poles. The smoke exhaust port will only open when no smoke is generated, preventing foreign matter from entering the interior of the rod smoke tube.

[0010] In addition, the purpose of this invention is to form a connecting flange portion powered by a power cord on the rod pressure bar. When the rod soft membrane cover is removed, the rod soft membrane cover is fixed on the connecting flange portion, and a dedicated grounding facility for power distribution is provided to eliminate the trouble of needing to connect a power cord when the electrical connection rod soft membrane cover is removed.

[0011] means for solving problems

[0012] To achieve the aforementioned goals, according to embodiments of the present invention, a power distribution pole grounding facility refers to a grounding terminal box installed on the power pole, electrically connecting the power distribution grounding wire of the power pole and the buried ground grounding wire, and a power distribution pole grounding device installed at the end of the aforementioned ground grounding wire, including a grounding terminal of a grounding terminal. The grounding terminal can be connected via a grounding rod, a grounding terminal of a grounding wire on a grounding wire, a grounding terminal of a grounding wire on a grounding wire, a grounding terminal of a grounding wire on a grounding wire, a grounding terminal of a grounding wire on a grounding wire, and so on. For ease of smoke screen positioning, a smoke screen material for generating smoke and a smoke screen cap for mounting an electric igniter are installed on the top of the rod extension tube and sealed. These smoke screen caps ignite the smoke screen material electrically. The grounding terminal box includes a battery terminal for connecting the battery, allowing the electric igniter to operate via battery power, thereby generating smoke on the smoke screen material.

[0013] The grounding assembly includes a rod insertion spring that inserts the grounding rod into the rod extension tube to support the grounding rod within the rod extension tube by elastic force, and a pressure rod that pressurizes the grounding rod when the rod soft film cap is attached to the rod extension tube, causing the grounding rod inserted into the rod extension tube to extend from the top of the rod along the direction of the rod extension tube, or a pressure rod that connects the rod to the rod. To remove foreign matter from the outer surface of the grounding rod protruding at the end of the rod extension tube and improve grounding performance, a foreign matter removal agent may be provided at the end of the rod extension tube where the grounding rod protrudes to remove foreign matter from the grounding rod.

[0014] The rod smoke screen cap is located on the upper part of the rod smoke screen cap, installed on the smoke screen exhaust port of the exhaust smoke screen, and on the smoke screen exhaust port to prevent foreign matter from penetrating, and may include a pressure switch that opens the smoke screen exhaust port when ignition on the smoke screen material causes the pressure resistance to rise.

[0015] The electric igniter includes an igniter terminal exposed under the rod smoke cover and powered by the electric igniter. The rod pressure rod can be connected to a power cable that is electrically connected to the igniter terminal and connected to the battery terminal when the rod smoke cover is removed from the rod extension tube, and a connection scheme for installing a connection terminal that is electrically connected to the igniter terminal is also provided.

[0016] Invention Effects

[0017] According to the present invention, a battery terminal is installed on a grounding terminal box installed on a utility pole. The grounding assembly buried underground receives power from the battery terminal to generate smoke material for the smoke screen. By contacting the battery on the battery terminal, it is easy to control whether the smoke material in the grounding assembly is ignited and leaks to the ground surface. Thus, when maintaining or replacing the grounding rod, the pollution of the existing grounding assembly to the environment can be eliminated.

[0018] In addition, the present invention improves the grounding performance of the grounding rod by inserting a spring and pressurizing the rod with a soft film cap in the rod extension tube. As the soft film cap detaches, the grounding rod emerges from the rod extension tube. Therefore, as the soft film cap detaches, foreign objects fixed to the outer surface of the grounding rod can be removed, thereby improving the grounding performance of the grounding rod.

[0019] In addition, the present invention provides a pressure switch on the smoke exhaust port that is opened only by the pressure that generates the smoke, so that foreign objects can be prevented from flowing into the interior of the rod tube through the smoke exhaust port when no smoke is generated.

[0020] In addition, the present invention also includes a connecting flange portion powered by a power cord on the rod pressure rod. When installing the rod smoke cover, the connecting flange portion will install the rod smoke cover, and the power cord and electric igniter will be electrically connected together, thereby eliminating the trouble of needing to connect the power cord separately when reinstalling the rod smoke cover. Attached Figure Description

[0021] Figure 1 This is a schematic side cross-sectional view of a power pole welding facility installed on a utility pole, according to an embodiment of the present invention.

[0022] Figure 2 yes Figure 1 This is a single-sided cross-sectional view of the main welding point facility of the power distribution system according to an embodiment of the present invention.

[0023] Figure 3 This is a side cross-sectional view showing the smoke formation state on the smoke curtain cover of the welding ground facility according to an embodiment of the present invention.

[0024] Figure 4 This is a side cross-sectional view reflecting the working state of the grounding rod when the smoke cover of the grounding rod of the power distribution welding facility is separated from the rod extension tube, according to an embodiment of the present invention.

[0025] Explanation of reference numerals in the attached figures

[0026] 100: Grounding facilities; 110: Grounding terminal box

[0027] 111: Grounding wire; 113: Power cord

[0028] 115: Grounding terminal; 117: Battery terminal

[0029] 130: Grounding component; 140: Grounding rod

[0030] 141: Peak Project Branch 145: Peak Pressurization Zone

[0031] 146: Connecting flange support; 146a: Connecting terminal

[0032] 150: Commander Feng Yuan 151: Reject Foreign Agent

[0033] 153: Grinding bushing; 160: Rod insertion spring

[0034] 170: Smoke cap 171: Cap body

[0035] 173: Hood and skirt section; 175: Smoke screen exhaust vent.

[0036] 177: Pressure switch; 180: Smoke screen material

[0037] 190: Electric igniter 191: Ignitioner connection

[0038] 191a: Ignition terminal; 200: Utility pole

[0039] 210: Distribution grounding wire Detailed Implementation

[0040] The embodiments of the present invention will now be described with reference to the accompanying drawings.

[0041] like Figure 1As shown, according to an embodiment of the present invention, the grounding facility 100 of the power distribution pole 200 is located at the lower part of the power distribution pole 200, and a grounding terminal 115 is provided on the grounding terminal box 110. The power distribution grounding wire 210 of the power distribution line and the grounding terminal 115 on the grounding assembly 130 buried in the ground are connected through the grounding terminal 115. The grounding terminal can be miraculously connected through the grounding terminal 115.

[0042] The grounding terminal box 110 can be fitted with a battery terminal 117 for connecting a battery, providing power to the grounding assembly 130. The battery terminal 117 can be connected to the grounding assembly 130 via a power cable.

[0043] The grounding assembly 130 can connect the grounding rod 140 to the ground for grounding. The grounding rod 140 can be formed of a highly conductive metal such as copper, copper, or tungsten. The lower end of the grounding rod 140 can be protruded downwards into the ground to form an increasingly pointed shape. The upper end of the grounding rod 140 can form an annular flange rod 141 with a larger circumference than the grounding rod 140.

[0044] As Figures 2 to 4 As shown, the grounding wire on the grounding rod 140 can be connected through the rod extension tube 150.

[0045] The grounding assembly 130 may include a slotted extension tube 150, which is formed as a hollow tube inside and can be installed vertically in the ground.

[0046] A grounding rod 140 can be installed inside the rod extension tube 150. The grounding rod 140 can slide up and down inside the rod extension tube 150 so that the tip of the grounding rod 140 extends to the lower end of the rod extension tube 150.

[0047] The preform 150 can be formed from non-conductive synthetic resin or non-ferrous metal.

[0048] A rod insertion spring 160 is provided between the rod flange support 141 and the lower part of the rod extension tube 150 where the grounding rod 140 is located. The grounding rod 140 in the rod extension tube 150 can be inserted into the interior of the rod extension tube 150 by the elastic force of the rod insertion spring 160.

[0049] When the grounding rod 140 installed inside the rod extension tube 150 is pressurized at the top, it protrudes from the bottom of the rod extension tube 150 as the rod insertion spring 160 is compressed. If the pressurization is released, the grounding rod 140 can be inserted into the bottom of the rod extension tube 150 by the elastic force of the compressed rod insertion spring 160.

[0050] At the lower end of the rod extension tube 150, a foreign object removal device 151 is installed to remove soil or foreign objects fixed around the grounding rod 140 when the grounding rod 140 is in and out. This device removes foreign objects fixed to the grounding rod 140 by passing through and exiting the grounding rod 140, thereby improving grounding performance. Figure 2 and Figure 4 ).

[0051] Furthermore, at the bottom of the rod extension tube 150, a grinding groove 153 for grinding the grounding rod 140 is provided above the foreign object insulation 151. At the bottom of the rod extension tube 150, when the grounding rod 140 is present, the grinding groove 153 grinds the surface of the grounding rod 140, thereby eliminating the oxide scale or corrosion generated when the grounding rod 140 is placed in the ground for a long time, thereby improving the grounding performance of the grounding rod 140.

[0052] The rod extension tube 150 is located on the ground surface at a certain depth near the ground rod 140. In order to find the ground rod 140, the ground surface is dug to a relatively low depth, which makes it easy to determine the installation position of the ground rod 140. When the ground rod 140 is replaced, due to the decrease in grounding or loss of the function of the ground rod 140, the ground rod 140 can be replaced as the previously installed ground rod 140, which can eliminate environmental pollution.

[0053] At the top of the slot extension pipe 150, a slot smoke cap 170 that generates a smoke screen can be installed to facilitate the location of the grounding rod 140 located underground. The slot smoke cap 170 has the function of generating a smoke screen to facilitate the location of the grounding rod 140, and can also seal the top of the slot extension pipe 150 to prevent substances similar to subsurface soil from flowing into the interior of the slot extension pipe 150.

[0054] The rod-shaped diaphragm cap 170 may include a cap body 171 inserted inside the rod-shaped diaphragm tube 150 and connected to the inner circumference of the rod-shaped diaphragm tube 150 by screws, and a skirt portion 173 extending from the upper part of the cap body 171 to the outer side and partially covering the upper circumference of the rod-shaped diaphragm tube 150 when the rod-shaped diaphragm cap 170 is attached to the rod-shaped diaphragm tube 150.

[0055] The interior of the cap body 171 can hold smoke material 180 that generates smoke when ignited, and an electric igniter 190 can be installed on the lower part of the cam body to ignite the smoke material 180.

[0056] When powered, the electric igniter 190 can ignite the smoke material 180 by heating it, thus producing smoke.

[0057] The lower part of the cap body 171 can be located at the igniter connection part 191 powered by the electric igniter 190. At the lower part of the igniter connection part 191, the igniter terminal 191a electrically connected to the power cord can be exposed on the bottom surface of the igniter connection part 191.

[0058] The ignition group 191a can be formed in a ring with the center of the lower part of the cam body as the center. The ignition group 191a can be formed in a ring shape so that the cathode end and the two end terminals have different diameters on the concentric circles.

[0059] The upper part of the rod smoke cap 170 can protrude to form a smoke exhaust port 175 for the smoke generated by the abrasive to be discharged outward. Smoke exhaust holes can be formed around the smoke exhaust port 175 to prevent the substance from flowing directly into the smoke exhaust port 175 from the top.

[0060] A pressure switch 177 can be installed inside the smoke exhaust port 175. The pressure switch 177 can slide up and down inside the smoke exhaust port 175. When the pressure switch 177 is located at the lower part of the smoke exhaust port 175, it can form an opening that is misaligned with the exhaust hole to prevent foreign matter from flowing into the cap body 171.

[0061] The pressure switch assembly 177 is located at the lower part of the smoke exhaust port 175. When the exhaust port and the switch port are misaligned, it prevents foreign matter from flowing in. If the smoke material 180 is ignited, it causes pressure to be generated inside the cap 171. The pressure switch assembly 177 in the smoke exhaust port 175 moves upward, and the exhaust port and the switch port are aligned. The smoke generated inside can be discharged through the smoke exhaust port 175.

[0062] In addition, a rod pressure rod 145 can be provided between the grounding rod 140 and the rod smoke cap 170. The grounding rod 140 is supported by the rod smoke cap 170 in a state where it protrudes from the lower end of the rod extension tube 150. The rod pressure rod 145 can be attached to the upper end of the grounding rod 140 and move up and down together with the grounding rod 140 from the inside of the rod extension tube 150.

[0063] In the portion where the bar pressure rod 145 contacts the bottom of the cap body 171, the perimeter of the connecting flange support 146 will be larger than the perimeter of the bar pressure rod 145. The connecting flange support 146 can form an electrical connection terminal 146a with the igniter terminal 191a of the igniter connection portion 191 exposed at the bottom of the cap body 171.

[0064] Like the ignition group 191a, the connecting end 146a can be formed in the form of a concentric ring centered on the center of the connecting flange branch 146. The connecting end 146a can form a cathode and an anode with different diameters.

[0065] The connection terminal 146a can be connected to the power cable of the battery terminal 117 of the terminal box via a power connection.

[0066] When the smoke cap 170 is used once to generate smoke, it is difficult to reuse the electric igniter 190. Therefore, the smoke cap 170 needs to be replaced and installed. If the power cord is connected to the smoke cap 170, the power cord needs to be reconnected during replacement. Therefore, this invention requires a clamping connection 170 between the igniter terminals 191a145 exposed at the bottom of the cap 171 and the rod 146a. By replacing and installing the smoke cap 170, the hassle of reconnecting the power cord can be eliminated.

[0067] Furthermore, the connecting terminal 146a and the ignition terminal 191a have corresponding diameters and form a ring on a concentric circle. Therefore, even when rotating on the sewing machine arm and connected to the sewing machine membrane cover 170 with screws, the connecting terminal 146a and the ignition terminal 191a can be tightly connected without conflict.

[0068] The current flowing through the grounding rod 140 in the pressure rod 145 is supplied as the connection end 146a located at the connecting flange support 146. In order to prevent the electric igniter 190 from malfunctioning, an insulator can be formed.

[0069] Explain the roles and effects of the above components.

[0070] According to an embodiment of the present invention, in order to confirm the grounding of the grounding assembly 130, the grounding terminal box 110 is opened by the power distribution wire 200 welding grounding facility 100. The grounding terminal box 115 is measured to determine whether there is any grounding abnormality. If there is a grounding abnormality, the battery 117 installed on the grounding terminal box 110 is removed in order to determine the position of the grounding rod 140.

[0071] After the battery is connected, the power supply is provided through the power line connected to the battery terminal 117 as the connection terminal 146a of the grounding assembly 130. The power supplied by the connection terminal 146a is provided through the igniter terminal 191a as the electric igniter 190, and the electric igniter 190 is activated.

[0072] After the electric igniter 190 is started, if the smoke material 180 is ignited, the smoke material 180 will increase the internal pressure of the body 171. As the pressure increases, the smoke exhaust port 175 pushes the pressure switch 177 upward, so that the exhaust hole of the grinding exhaust port is opposite to the opening and closing hole of the pressure switch 177, and the internal smoke becomes the smoke exhaust port 175.

[0073] When the smoke screen is exhausted, it leaks to the surface through the holes in the ground, and the smoke screen cap 170 is exposed to the surface at the part of the smoke screen that leaks.

[0074] When the rod smoke cap 170 is exposed to the outside, in order to know the status of the grounding rod 140 inside the rod smoke tube 150, rotate the rod smoke cap 170 and remove it from the rod smoke tube 150.

[0075] If the suture liner cap 170 is removed from the suture extension tube 150, as the compressed suture insertion spring 160 expands, the suture flange support 141 is pressurized, and the grounding rod 140 is pushed upward, so that the grounding rod 140 is inserted into the lower part of the suture extension tube 150.

[0076] At this time, as the grounding rod 140 is inserted into the inside of the rod extension tube 150, the foreign object removal 151 installed at the bottom of the rod extension tube 150 fixes the foreign object outside the grounding rod 140, and the grinding 153 located above the foreign object removal 151 grinds the surface of the grounding rod 140.

[0077] Depending on the degree of corrosion on the surface of the grounding rod 140 and the degree of adhesion of foreign objects, the grounding rod 145 is repeatedly and forcibly pressurized to make the grounding rod 140 re-enter and exit the water in the rod extension tube 150. Alternatively, the surface abrasion of the grounding rod 140 can be improved by grinding 153 to further improve the grounding performance.

[0078] On the other hand, to determine if there is any abnormality in the grounding rod 140 and if it needs to be replaced, the grounding rod extension tube 150 is separated from the ground, and the grounding assembly 130 is replaced as a whole. If there is no abnormality in the grounding rod 140, the new rod soft film cap 170 is rotated to the upper part of the rod extension tube 150 for connection.

[0079] If the rod diaphragm cap 170 is rotated to the upper part of the rod hose 150, the cap body 171 of the rod diaphragm cap 170 is inserted into the inside of the rod hose 150 by screw connection, the connecting terminal 146a of the connecting flange support 146 is connected to the fire receiver terminal, and then the cap body 171 is moved downward, and as the rod pressure rod 145 is pressurized, the grounding rod 140 inserted through the inside of the rod hose 150 is exposed again.

[0080] At this time, if the grounding rod 140 is moved from the rod extension tube 150 to the lower exposed part, the insertion rod spring 160 will be compressed again, and the grounding rod 140 will be exposed through the grinding bushing 153. The surface of the grounding rod 140 will be ground again to remove the oxide film or corroded parts and improve the grounding with the ground.

[0081] If the smoke cap 170 is installed on the smoke pipe 150, in order to prevent the smoke cap 170 from being exposed and damaged, the grounding rod 140 can be checked or replaced for any abnormalities so that the smoke cap 170 can be buried in the ground and the excavated ground surface can be refilled.

[0082] Therefore, according to an embodiment of the present invention, the grounding facility 100 of the power distribution wire 200 has a smoke-generating rod cap 170 installed on the grounding assembly 130 buried underground, and a battery terminal 117 for igniting the smoke-generating rod cap 170 is installed on the grounding terminal box 110 of the wire 200. If the battery terminal 117 is connected to the battery terminal, the grounding position of the grounding terminal 140 buried in the battery can be easily maintained by wrapping the smoke-generating rod cap 170 with a smoke-generating cap, thereby determining the grounding position. The rod 140 can be placed in a landfill state to prevent environmental pollution.

[0083] In addition, the present invention provides a grounding rod 140 that can be moved up and down on the rod extension tube 150. When the rod soft film cap 170 is detached, the grounding rod 140 moves up and down, and the foreign matter fixed on the grounding rod 140 is removed by the foreign matter repellent 151, which can improve the grounding performance of the grounding rod 140.

[0084] In addition, the present invention has installed a pressure switch component 177 on the smoke exhaust port 175 of the exhaust smoke screen. The smoke exhaust port 175 can only be opened when the smoke screen material 180 is ignited, thereby preventing foreign matter from flowing into the interior of the smoke sealing pipe 150 when the smoke screen material 180 is not ignited.

[0085] Furthermore, the present invention also configures the electric igniter 190 to be connected close to the connection terminal 146a mounted on the rod pressure rod 145, thereby eliminating the trouble of having to reconnect the power cord to the rod smoke cap 170 even when the rod smoke cap 170 is replaced.

[0086] The embodiments of the present invention have been described above, but the scope of the present invention is not limited thereto, and includes all changes and modifications in the technical field to which the present invention pertains that are easily altered by a person with ordinary knowledge and are considered to be of equal scope.

Claims

1. A grounding facility for power distribution lines, comprising a grounding terminal box installed on a utility pole, electrically connecting the power distribution grounding wire and the buried grounding wire of the power distribution line, and a grounding assembly installed at the end of the buried grounding wire and grounded therein, characterized in that, The grounding assembly includes: A grounding rod connected to the ground; To allow the lower end of the grounding rod to protrude, the lower end of the grounding rod receives and extends into a rod extension tube that extends vertically to the upper part of the grounding rod; and To facilitate identifying the location of the grounding rod through the smoke screen, it is installed on top of the rod extension tube to seal the top of the rod extension tube. A smoke screen material and a rod smoke screen cap equipped with an electric igniter are used to generate the smoke screen. The smoke screen material is then electrically ignited. The grounding terminal box activates the electric igniter via a battery power source, including a battery terminal connected to the battery, in order to generate smoke in the smoke material.

2. The grounding facility for power distribution lines according to claim 1, characterized in that, The grounding assembly includes: To insert the grounding rod inside the rod extension tube, a rod insertion spring is provided in the rod extension tube to support the grounding rod with elastic force; and When the grounding rod is attached to the rod extension tube, the grounding rod is pressurized so that the grounding rod, which is inserted into the rod extension tube, protrudes to the lower part of the rod extension tube, including a rod pressure band that protrudes from the top of the grounding rod toward the direction of the rod extension tube and is pressurized by the rod extension tube. The rod extension tube is separated from or combined with the rod soft membrane cap, which can remove foreign objects attached to the outer surface of the grounding rod at the end of the rod extension tube, thereby improving grounding. Therefore, the rod extension tube is provided at the end where the grounding rod appears, including a foreign object rejection grounding facility for removing foreign objects attached to the grounding rod.

3. The grounding facility for power distribution lines according to claim 1, characterized in that, The smoke screen cover includes: The exhaust port of the exhaust smoke screen located on the upper part of the smoke screen cap; and Installed on the smoke screen exhaust port to prevent foreign matter from penetrating, and including a pressure switch on the smoke screen material that opens the smoke screen exhaust port due to pressure increase caused by ignition.

4. The grounding facility for power distribution lines according to claim 2, characterized in that, The electric igniter includes an igniter terminal exposed beneath the smoke screen cover and powered by the electric igniter. When the rod pressure rod detaches the rod smoke cover from the rod extension tube, it is electrically connected to the igniter terminal, connected to the power cable connected to the battery terminal, and includes a connecting terminal connecting flange support that is electrically and tightly connected to the igniter terminal.

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