Distribution house surface lightning belt installation structure

Abstract

The utility model relates to lightning belt installation technical field discloses distribution house surface lightning belt installation structure, including parapet and wall, the top outside fixedly connected with wall of parapet, the inside equidistance fixedly connected with a plurality of round steel supports of wall, the inboard of a plurality of round steel supports all fixedly connected with round steel lightning short needle, the outside of a plurality of round steel supports all fixedly connected with round steel down conductor, the top of a plurality of round steel supports all fixedly connected with same round steel lightning belt. In the utility model, through round steel support fixed round steel lightning short needle and round steel lightning belt, the current is conducted with the ground down conductor, and the effect that distribution room is effectively protected from the harm of lightning is realized, and the lightning is intercepted comprehensively, and the lightning current is discharged, and the distribution room is damaged, and convenient detection maintenance is avoided simultaneously, and the long -term reliable operation of lightning protection system is ensured, and the safety and stability of distribution room are guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of lightning protection strip installation technology, and in particular to the installation structure of lightning protection strip on the roof of a power distribution building. Background Technology

[0002] Lightning protection strips are made of hot-dip galvanized round or flat steel and are laid along the edges or ridges of building roofs, which are prone to lightning strikes. Support clips are used to fix the lightning protection strips, keeping them at the specified height and position, ensuring that the lightning protection strips are stable and reliable, and forming a complete lightning protection system that effectively guides lightning current and prevents buildings from being damaged by lightning strikes.

[0003] A search revealed Chinese patent publication number CN221806457U, which discloses an installation structure for a lightning protection strip on a granite roof, including a lightning-catching strip. The lightning-catching strip is fixedly installed on a lightning-catching strip bracket, which is then fixedly connected to the granite stone using expansion bolts. This method allows the lightning-catching strip bracket to be fixed after the stone installation is complete. After determining the opening position of the lightning-catching strip bracket on the stone, a hole size matching the expansion bolt is selected, and the expansion bolt is inserted after drilling. Different types of expansion bolts can be used for stones of different thicknesses. A special expansion bolt puller is used to continuously tighten the bolts, causing the expansion tube to deform and enlarge, thus securing it firmly to the stone before fixing it to the lightning-catching strip bracket. This method achieves straight installation points for the lightning protection strip on the granite roof, eliminates the need for sealant, and provides a good appearance. However, relying solely on the lightning-catching strip results in a limited lightning interception range, making it difficult to comprehensively block lightning. Furthermore, the lightning current conduction path is relatively simple and lacks stability. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a lightning protection strip installation structure for rooftop distribution buildings, aiming to improve the existing technology that relies solely on lightning protection strips to intercept lightning, resulting in a limited lightning protection range, difficulty in comprehensively intercepting lightning, and a relatively simple lightning current conduction path with insufficient stability.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: replicating the roof lightning protection strip installation structure of a power distribution house, including a parapet wall and a wall body. The top outer side of the parapet wall is fixedly connected to the wall body, and multiple round steel supports are fixedly connected at equal intervals inside the wall body. Round steel lightning protection short rods are fixedly connected to the inner side of each of the multiple round steel supports, and round steel down conductors are fixedly connected to the outer side of each of the multiple round steel supports. The same round steel lightning protection strip is fixedly connected to the top of each of the multiple round steel supports, and a grounding down conductor is fixedly connected to the bottom end of each of the multiple round steel down conductors. A disconnection clamp protection mechanism is provided inside the parapet wall.

[0006] The above technical solution, which uses round steel supports to fix the round steel lightning rod and round steel lightning protection strip to intercept lightning strikes, and round steel down conductors and grounding down conductors to conduct current, along with a disconnection card protection mechanism for inspection and maintenance, effectively protects the power distribution room from lightning damage. It comprehensively intercepts lightning, discharges lightning current, and prevents damage to the power distribution room. At the same time, it facilitates inspection and maintenance, ensures the long-term reliable operation of the lightning protection system, and guarantees the safety and stability of the power distribution room.

[0007] As a further description of the above technical solution: The disconnection card protection mechanism includes a disconnection card protection box and two galvanized flat steel bars. The two galvanized flat steel bars are respectively fixedly connected to the inner top and inner bottom of the disconnection card protection box. The bottom of the grounding lead-out wire passes through the top of the disconnection card protection box and is fixedly connected to the rear side of the top galvanized flat steel bar. The rear side of the bottom galvanized flat steel bar is fixedly connected to a grounding lead-out wire. The front side of both galvanized flat steel bars is attached to the same detachable disconnection card. Galvanized bolts pass through the four corners of the rear side of both galvanized flat steel bars. The front ends of multiple galvanized bolts pass through the front side of the detachable disconnection card. The ends of multiple galvanized bolts are threaded with galvanized nuts.

[0008] The above technical solution protects internal components with a disconnecting clip protection box, conducts current with galvanized flat steel, and uses a detachable disconnecting clip in conjunction with galvanized bolts and nuts to form an electrical path. During normal operation, it conducts lightning current to the ground. During testing, the disconnecting clip is removed to check grounding parameters. This achieves the effects of protecting the grounding connection of the lightning protection system, ensuring the safe discharge of lightning current, and facilitating testing and maintenance. It can ensure the stable operation of the lightning protection system, evaluate the grounding performance in a timely manner, and ensure the long-term effective protection of the power distribution room from lightning strikes.

[0009] As a further description of the above technical solution: The bottom of the disconnection card protection box is connected to a rigid PVC pipe, and the bottom of the grounding lead wire is sleeved inside the rigid PVC pipe.

[0010] The above technical solution provides protection for the grounding lead wire by using rigid PVC pipe, which can prevent the grounding lead wire from being corroded by soil and mechanically damaged. The bottom of the grounding lead wire is wrapped inside it to ensure stable current conduction and ensure that the lightning current in the lightning protection system is safely conducted to the ground from the grounding lead wire.

[0011] As a further description of the above technical solution: The height of the plurality of round steel supports is set to 190-210mm, preferably 200mm, and the spacing between the plurality of round steel supports is set to 900-1100mm, preferably 1000mm.

[0012] Through the above technical solution: the height of the round steel support is set at 190-210mm, preferably 200mm, which can make the round steel lightning rod and round steel lightning protection strip at a reasonable height, which is conducive to lightning protection and balances the influence of wind load. The spacing is set at 900-1100mm, preferably 1000mm, which can make the round steel lightning protection strip evenly distributed, fully covering the roof, effectively expanding the lightning protection range, and enhancing the protection effect of the lightning protection system on the roof.

[0013] As a further description of the above technical solution: The depth of the bottom of the round steel support penetrating the wall is set to 30-50mm, preferably 40mm, and the height of the round steel lightning rod is set to 490-510mm, preferably 500mm.

[0014] The above technical solution involves the bottom of the round steel support penetrating the wall to a depth of 30-50mm, preferably 40mm, which ensures sufficient anchoring force in the wall. The round steel support will not loosen or shift, providing stable support for the round steel lightning rod and the round steel down conductor, and ensuring the stability of the lightning protection system structure.

[0015] As a further description of the above technical solution: The round steel support, the round steel lightning rod, and the round steel down conductor are all continuously welded on both sides, and the welding length between the round steel support and the round steel lightning rod and the round steel down conductor is greater than or equal to 120mm.

[0016] Through the above technical solution: the height of the round steel lightning rod is set to 490-510mm, preferably 500mm. This height allows the lightning rod to efficiently attract lightning in the parts of the roof that are prone to lightning strikes. When lightning occurs, it can quickly introduce the powerful lightning current into the lightning protection system, working in conjunction with the round steel lightning protection strip to improve the lightning protection system's lightning interception capability.

[0017] As a further description of the above technical solution: The width of the disconnection card protection box is set to 290-310mm, preferably 300mm, and the thickness of the disconnection card protection box is set to 140-160mm, preferably 150mm.

[0018] Through the above technical solution: the round steel support, the round steel lightning rod, and the round steel down conductor are continuously welded on both sides, and the welding length is ≥120mm. The continuous double-sided welding enhances the mechanical strength of the connection and ensures its firmness. The sufficient welding length ensures good electrical conductivity, so that the lightning current can be smoothly conducted from the round steel lightning rod through the round steel support to the round steel down conductor.

[0019] As a further description of the above technical solution: The detachable disconnect card has an arc-shaped design in the middle and a symmetrical design on the outside.

[0020] The above technical solution provides suitable space for internal components by using a disconnector card protection box with a width of 290-310mm (preferably 300mm) and a thickness of 140-160mm (preferably 150mm). This facilitates installation, testing, and maintenance. The detachable disconnector card features a central arc design to reduce stress concentration, and its symmetrical external design facilitates installation and disassembly, ensuring precise fit with the galvanized flat steel and achieving reliable electrical connection.

[0021] This utility model has the following beneficial effects: 1. In this utility model, the round steel lightning protection short needle and round steel lightning protection strip are fixed by round steel support to intercept lightning, and the round steel down conductor and grounding down conductor conduct current. The disconnection card protection mechanism is used for detection and maintenance, which effectively protects the power distribution room from lightning damage, comprehensively intercepts lightning, discharges lightning current, avoids damage to the power distribution room, facilitates detection and maintenance, ensures the long-term reliable operation of the lightning protection system, and guarantees the safety and stability of the power distribution room.

[0022] 2. In this utility model, the internal components are protected by a disconnection card protection box, and the current is conducted by galvanized flat steel. The detachable disconnection card, together with galvanized bolts and galvanized nuts, forms an electrical path. During normal operation, the lightning current is conducted to the ground. During testing, the disconnection card is removed to test the grounding parameters. This achieves the effects of protecting the grounding connection of the lightning protection system, ensuring the safe discharge of lightning current, and facilitating testing and maintenance. It can not only ensure the stable operation of the lightning protection system, but also promptly evaluate the grounding performance and ensure that the lightning protection system effectively protects the power distribution room from lightning strikes for a long time. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the rooftop lightning protection strip installation structure for power distribution buildings proposed in this utility model. Figure 2 This is an installation diagram of the rooftop lightning protection strip installation structure for power distribution buildings proposed in this utility model; Figure 3 This is a schematic diagram of the round steel lightning protection strip in the roof lightning protection strip installation structure of the power distribution building proposed in this utility model; Figure 4 This is a schematic diagram of the internal structure of the interruption connection protection box of the roof lightning protection strip installation structure of the power distribution house proposed in this utility model; Figure 5 This is a schematic diagram of the galvanized bolts in the lightning protection strip installation structure on the roof of the power distribution building proposed in this utility model.

[0024] Legend: 1. Parapet wall; 2. Disconnection clamp protection mechanism; 201. Disconnection clamp protection box; 202. Galvanized flat steel; 203. Grounding lead-out wire; 204. Removable disconnection clamp; 205. Galvanized bolt; 206. Galvanized nut; 207. Rigid PVC pipe; 3. Wall; 4. Round steel support; 5. Round steel lightning rod; 6. Round steel down conductor; 7. Round steel lightning protection strip; 8. Grounding down conductor. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Reference Figure 1 , Figure 2 and Figure 3 An embodiment of this utility model provides a lightning protection strip installation structure for a power distribution building roof, including a parapet wall 1 and a wall 3. The wall 3 is fixedly connected to the top outer side of the parapet wall 1. Multiple round steel supports 4 are fixedly connected at equal intervals inside the wall 3. Round steel lightning protection short needles 5 are fixedly connected to the inner side of each of the multiple round steel supports 4. Round steel down conductors 6 are fixedly connected to the outer side of each of the multiple round steel supports 4. The same round steel lightning protection strip 7 is fixedly connected to the top of each of the multiple round steel supports 4. Grounding down conductors 8 are fixedly connected to the bottom end of each of the multiple round steel down conductors 6. A disconnection protection mechanism 2 is provided inside the parapet wall 1. Specifically, the parapet wall 1 serves as the basic structural component for the installation of the lightning protection strip, supporting the overall structure of the entire lightning protection device. The wall 3 is fixedly connected to the outer top of the parapet wall 1, providing a support for other components. Multiple round steel supports 4, equidistantly fixed inside the wall 3, provide support and fixation. Round steel lightning rods 5, fixedly connected to the inner side of the round steel supports 4, are mainly located at the top of the parapet wall 1 in areas susceptible to lightning strikes. When lightning occurs, the round steel lightning rods 5 act as lightning arresters, attracting the lightning and introducing its powerful current into the lightning protection system. Round steel down conductors 6, fixedly connected to the outer side of the round steel supports 4, are responsible for conducting the lightning current received by the round steel lightning rods 5. The round steel down conductors 6 guide the lightning current from high to low, and their bottom ends are fixedly connected to... The grounding down conductor 8 safely guides the lightning current to the ground, discharging it and preventing damage to the power distribution room. Multiple round steel supports 4 are fixedly connected to the top of the round steel lightning protection strip 7, which is laid along the parapet wall 1 of the roof, further expanding the lightning protection range. The round steel lightning protection strip 7 works in conjunction with the round steel lightning protection short needle 5 to more comprehensively intercept lightning, enhancing the reliability of the entire lightning protection system. The disconnection clamp protection mechanism 2 installed inside the parapet wall 1 is mainly used to facilitate the testing and maintenance of the lightning protection system. When testing the grounding parameters of the lightning protection system, the relevant circuits can be disconnected or connected through the disconnection clamp protection mechanism 2, thereby accurately measuring the performance parameters of the grounding device, thus forming a complete lightning protection system and effectively protecting the power distribution room from lightning strikes.

[0027] Reference Figure 2 , Figure 4 and Figure 5 The disconnection card protection mechanism 2 includes a disconnection card protection box 201 and two galvanized flat steel bars 202. The two galvanized flat steel bars 202 are fixedly connected to the top and bottom of the inner side of the disconnection card protection box 201, respectively. The bottom of the grounding lead 8 passes through the top of the disconnection card protection box 201 and is fixedly connected to the rear side of the top galvanized flat steel bar 202. The rear side of the bottom galvanized flat steel bar 202 is fixedly connected to the grounding lead 203. The front side of the two galvanized flat steel bars 202 is attached to the same detachable disconnection card 204. The four corners of the rear side of the two galvanized flat steel bars 202 are all penetrated by galvanized bolts 205. The front ends of the multiple galvanized bolts 205 pass through the front side of the detachable disconnection card 204. The ends of the multiple galvanized bolts 205 are all threaded with galvanized nuts 206. Specifically, the disconnection card protection box 201 provides a protective shell for the entire disconnection card protection mechanism 2, protecting the internal components from external environmental factors and ensuring the stability and reliability of the internal electrical connections. Two galvanized flat steel bars 202 are fixedly connected to the top and bottom of the inner side of the disconnection card protection box 201, respectively, serving to connect and conduct current. The grounding down conductor 8 conducts the lightning current down from above, and its bottom passes through the top of the disconnection card protection box 201 and is fixedly connected to the top galvanized flat steel bar 202. The rear side of 2 allows the lightning current to be smoothly conducted to the galvanized flat steel 202. A grounding lead 203 is fixedly connected to the rear side of the bottom galvanized flat steel 202. The function of the grounding lead 203 is to further conduct the current to the ground, realizing the discharge of the lightning current. The front sides of the two galvanized flat steels 202 are attached to the same detachable disconnect clip 204. Under normal working conditions, the detachable disconnect clip 204 is connected to the two galvanized flat steels 202 through multiple galvanized bolts 205 and galvanized nuts 206. The multiple galvanized bolts 205... 05 penetrates the four corners of the rear side of the galvanized flat steel 202 and further penetrates the front side of the detachable disconnecting clip 204. The end is secured by a threaded galvanized nut 206. This connection method ensures a reliable electrical connection between the two galvanized flat steels 202, allowing the lightning current to flow smoothly through the grounding down conductor 8, galvanized flat steel 202, and grounding out conductor 203 to the ground. When it is necessary to test parameters such as the grounding resistance of the lightning protection system, the detachable disconnecting clip 204 can be removed from the galvanized flat steel 202. At this time, the electrical connection between the grounding down conductor 8 and the grounding out conductor 203 is broken. The testing personnel can use professional testing equipment to test the grounding down conductor 8 and the grounding out conductor 203 respectively, thereby accurately measuring the grounding parameters of the grounding device and determining whether the grounding performance of the lightning protection system meets the requirements. After the test is completed, the detachable disconnecting clip 204 is reinstalled to restore the electrical connection between the grounding down conductor 8 and the grounding out conductor 203, ensuring the normal operation of the lightning protection system.

[0028] Reference Figure 2 , Figure 3 and Figure 4The bottom of the disconnection card protection box 201 is connected to a rigid PVC pipe 207, and the bottom of the grounding lead 203 is sleeved inside the rigid PVC pipe 207; the height of the multiple round steel supports 4 is set to 190-210mm, preferably 200mm, and the spacing between the multiple round steel supports 4 is set to 900-1100mm, preferably 1000mm; the depth of the bottom of the round steel support 4 penetrating the wall 3 is set to 30-50mm, preferably 40mm; the height of the round steel lightning rod 5 is set to 490-510mm, preferably... The height is set to 500mm; the round steel support 4 is continuously welded to the round steel lightning rod 5 and the round steel down conductor 6, and the welding length between the round steel support 4 and the round steel lightning rod 5 and the round steel down conductor 6 is greater than or equal to 120mm; the width of the disconnection card protection box 201 is set to 290-310mm, preferably 300mm, and the thickness of the disconnection card protection box 201 is set to 140-160mm, preferably 150mm; the middle part of the detachable disconnection card 204 adopts an arc-shaped design, and the outside of the detachable disconnection card 204 adopts a symmetrical design; Specifically, the rigid PVC pipe 207 connected to the bottom of the disconnection card protection box 201 provides a protective channel for the grounding lead 203. The bottom of the grounding lead 203 is sleeved inside the rigid PVC pipe 207. The rigid PVC pipe 207 can prevent the grounding lead 203 from being affected by mechanical damage and soil corrosion, ensuring that the grounding lead 203 can stably and reliably conduct lightning current to the ground. The width of the disconnection card protection box 201 is preferably 300mm and the thickness is preferably 150mm, in order to adapt to the installation and operation space requirements of the internal components. The appropriate size can accommodate two galvanized steel pipes. The flat steel 202 and the detachable disconnect clip 204 facilitate installation, inspection, and maintenance. The detachable disconnect clip 204 features a rounded arc design in the middle and is symmetrical externally. The arc design helps reduce stress concentration and improves its mechanical strength and electrical connection stability; the symmetrical design facilitates installation and disassembly, ensuring precise contact with the two galvanized flat steels 202 during connection and guaranteeing reliable electrical connection. The height of the round steel support 4 is set at 190-210mm, preferably 200mm. This height allows the round steel lightning rod 5 and the round steel lightning protection strip 7 to be at a suitable installation height, ensuring their proper functioning. To effectively intercept lightning strikes without excessively increasing wind load, the spacing between the round steel supports 4 is set at 900-1100mm, preferably 1000mm. This reasonable spacing ensures the even distribution of the round steel lightning protection strips 7, guaranteeing a comprehensive and balanced lightning protection range on the roof, effectively intercepting lightning. The depth of the bottom of the round steel support 4 penetrating the wall 3 is set at 30-50mm, preferably 40mm, ensuring sufficient anchorage depth within the wall 3 for secure fixation. This provides stable support for the round steel lightning rods 5 and the round steel down conductors 6, preventing them from collapsing when struck by lightning or other external forces. To prevent loosening and displacement, the height of the round steel lightning arrester 5 is set at 490-510mm, preferably 500mm. This height allows it to efficiently attract lightning in areas prone to lightning strikes, introducing the lightning current into the lightning protection system. The round steel support 4, the round steel lightning arrester 5, and the round steel down conductor 6 are connected by continuous double-sided welding with a welding length greater than or equal to 120mm. Continuous double-sided welding can enhance the mechanical strength and electrical conductivity of the connection. Sufficient welding length ensures a firm and reliable connection, allowing the lightning current to be smoothly conducted from the round steel lightning arrester 5 through the round steel support 4 to the round steel down conductor 6, and then into the ground.

[0029] Working principle: The parapet wall 1 supports the entire lightning protection system. The wall 3 is fixedly connected to the top outer side of the parapet wall 1, providing a support for the installation of other components. Multiple round steel supports 4, equidistantly fixed inside the wall 3, provide support and fixation. Round steel lightning rods 5, fixedly connected to the inner side of the round steel supports 4, are mainly arranged at the top of the parapet wall 1 in areas susceptible to lightning strikes. When lightning occurs, the round steel lightning rods 5 act as lightning arresters, attracting the lightning first and introducing the powerful current into the lightning protection system. The round steel conductors fixedly connected to the outer side of the round steel supports 4 then... Line 6 is responsible for conducting the lightning current received by the round steel lightning rod 5. The round steel down conductor 6 guides the lightning current from high to low. The grounding down conductor 8, which is fixedly connected to its bottom end, finally safely conducts the lightning current to the ground, realizing the discharge of the lightning current and preventing lightning from damaging the power distribution room. The round steel lightning protection strip 7, which is fixedly connected to the top of multiple round steel supports 4, is laid along the parapet wall 1 of the roof, further expanding the lightning protection range. The round steel lightning protection strip 7 and the round steel lightning rod 5 work together to intercept lightning more comprehensively and enhance the reliability of the entire lightning protection system. Furthermore, the disconnection card protection box 201 protects internal components from external environmental factors, ensuring the stability and reliability of internal electrical connections. Two galvanized flat steels 202 are fixedly connected to the top and bottom of the inner side of the disconnection card protection box 201, respectively, serving as a connection and conducting current. The grounding down conductor 8 conducts the lightning current down from above, and its bottom passes through the top of the disconnection card protection box 201 and is fixedly connected to the rear side of the top galvanized flat steel 202, allowing the lightning current to be smoothly conducted into the galvanized flat steel 202. The bottom galvanized flat steel 202 is fixedly connected to the rear side of the bottom galvanized flat steel 202. The function of the grounding down conductor 203 is to further conduct the current to the ground, realizing the discharge of lightning current. The front sides of the two galvanized flat steels 202 are attached to the same detachable disconnection card 204. Under normal working conditions, the detachable disconnection card 204 is connected to the two galvanized flat steels 202 through multiple galvanized bolts 205 and galvanized nuts 206. The multiple galvanized bolts 205 pass through the galvanized flat steels 202. At the four corners of the rear side of the zinc flat steel 202, and further through the front side of the detachable disconnecting clip 204, the end is fastened by a threaded galvanized nut 206. This connection method ensures a reliable electrical connection between the two galvanized flat steels 202, allowing the lightning current to smoothly pass through the grounding down conductor 8, the galvanized flat steel 202, and the grounding out conductor 203 to the ground. When it is necessary to test parameters such as the grounding resistance of the lightning protection system, the detachable disconnecting clip 204 can be removed from the galvanized flat steel 202. At this time, the electrical connection between the grounding down conductor 8 and the grounding out conductor 203 is broken. The testing personnel can use professional testing equipment to test the grounding down conductor 8 and the grounding out conductor 203 respectively, thereby accurately measuring the grounding parameters of the grounding device and determining whether the grounding performance of the lightning protection system meets the requirements. After the test is completed, the detachable disconnecting clip 204 is reinstalled to restore the electrical connection between the grounding down conductor 8 and the grounding out conductor 203.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A roof lightning protection strip installation structure for a power distribution room, comprising a parapet wall (1) and a wall (3), characterized in that: The parapet wall (1) is fixedly connected to the top outer side of the wall body (3), and multiple round steel supports (4) are fixedly connected at equal intervals inside the wall body (3). The inner side of each of the multiple round steel supports (4) is fixedly connected to a round steel lightning rod (5), the outer side of each of the multiple round steel supports (4) is fixedly connected to a round steel down conductor (6), the top of each of the multiple round steel supports (4) is fixedly connected to the same round steel lightning protection strip (7), the bottom end of each of the multiple round steel down conductors (6) is fixedly connected to a grounding down conductor (8), and the parapet wall (1) is provided with a disconnection card protection mechanism (2).

2. The installation structure for lightning protection strips on the roof of a power distribution building according to claim 1, characterized in that: The disconnection card protection mechanism (2) includes a disconnection card protection box (201) and two galvanized flat steel bars (202). The two galvanized flat steel bars (202) are fixedly connected to the top and bottom of the inner side of the disconnection card protection box (201). The bottom of the grounding lead (8) passes through the top of the disconnection card protection box (201) and is fixedly connected to the rear side of the top galvanized flat steel bar (202). The rear side of the bottom galvanized flat steel bar (202) is fixedly connected to a grounding lead (203). The front side of the two galvanized flat steel bars (202) is attached to the same detachable disconnection card (204). The four corners of the rear side of the two galvanized flat steel bars (202) are all pierced by galvanized bolts (205). The front ends of the multiple galvanized bolts (205) all pass through the front side of the detachable disconnection card (204). The ends of the multiple galvanized bolts (205) are all threaded with galvanized nuts (206).

3. The installation structure for the lightning protection strip on the roof of the power distribution building according to claim 2, characterized in that: The bottom of the disconnect card protection box (201) is connected to a rigid PVC pipe (207), and the bottom of the grounding lead (203) is sleeved inside the rigid PVC pipe (207).

4. The installation structure of the lightning protection strip on the roof of the power distribution building according to claim 1, characterized in that: The height of the plurality of round steel supports (4) is set to 190-210mm, and the spacing between the plurality of round steel supports (4) is set to 900-1100mm.

5. The installation structure for the lightning protection strip on the roof of the power distribution building according to claim 1, characterized in that: The bottom of the round steel support (4) penetrates the wall (3) to a depth of 30-50mm, and the height of the round steel lightning rod (5) is set to 490-510mm.

6. The installation structure for the lightning protection strip on the roof of the power distribution building according to claim 1, characterized in that: The round steel support (4) is continuously welded to the round steel lightning rod (5) and the round steel down conductor (6) on both sides. The welding length between the round steel support (4) and the round steel lightning rod (5) and the round steel down conductor (6) is greater than or equal to 120mm.

7. The installation structure for the lightning protection strip on the roof of the power distribution building according to claim 2, characterized in that: The width of the disconnection card protection box (201) is set to 290-310mm, and the thickness of the disconnection card protection box (201) is set to 140-160mm.

8. The installation structure for the lightning protection strip on the roof of the power distribution building according to claim 2, characterized in that: The middle part of the detachable disconnect card (204) adopts an arc-shaped design, and the outside of the detachable disconnect card (204) adopts a symmetrical design.

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