Wiring theft prevention device and installation method of the same

Abstract

To prevent theft of a wire in rolled wiring in a photovoltaic power plant etc.SOLUTION: A wiring theft prevention device includes a case body 1 for forming a tunnel in a longitudinal direction and a plurality of piping holding members 2 suspended inside the case body 1. The device includes a lifting mechanism 3 which lifts the piping holding members 2 from a ground face G, and a connection part 4 which is provided in the case body 1 and connects the adjacent case bodies 1 in the longitudinal direction. In the case body 1, the piping holding member 2 is caused to hold piping H of rolling wiring, and the lifting mechanism 3 lifts the piping H from the ground face G. The weight of the piping H is applied to the case body 1 through the piping holding member 2, and the case body 1 is pressed against the ground face G. Thus, it becomes difficult to remove the case body 1 which covers the piping H, and it becomes difficult to remove the case body 1 and cut the piping H and wiring C.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a wiring theft prevention device and a method for installing the same. [Background technology]

[0002] In Japan, solar power plants have rapidly spread since around 2009. This is largely due to the government's introduction of the Feed-in Tariff (FIT) system for electricity.

[0003] In the construction of solar power plants, burying the power cables for solar panels over long distances is very costly. Therefore, to avoid the costly burial work, a construction method of running the power cables through protective pipes laid directly on the ground is often used. This is known as "rolling." There are currently many such outdoor solar power plants. At the time, copper wire was still cheap, and it was not expected that copper wire theft would become as common as it is today.

[0004] Meanwhile, starting around 2022, the price of copper wire skyrocketed due to the effects of the Ukraine war and the rapid depreciation of the yen. Because stolen copper wire can be purchased at extremely high prices, copper wire thefts have become commonplace at various facilities. Solar power plants, which use thick cables over long distances, are particularly attractive hunting grounds for copper wire thieves. Most solar power plants are located in remote rural areas or mountainous areas, making them ideal targets for copper wire thieves. In recent years, the number of copper wire thefts at solar power plants has been increasing sharply.

[0005] As mentioned above, many outdoor solar power plants are located in rural areas, making it easy for thieves to enter the facilities without being noticed. Furthermore, with rolled wiring, it is possible to cut and carry off the thick power cables wherever desired. This makes it difficult for thieves to survive.

[0006] Once a damage occurs, not only is the wiring itself damaged, but the theft of electrical wires has become so common recently that it has become common for it to take several months to arrange for restoration of the wiring. The loss of power generation during this time is a huge amount, easily exceeding 10 million yen. Many solar power plants have theft insurance and are still able to receive compensation for the damage, but the insurance companies have suffered so much loss that theft insurance has recently been suspended, making it impossible to obtain insurance. However, it is no longer possible to bury the current rolled wiring, and solar power plant owners live every day in fear of theft of electrical wires. The applicant is not aware of any known prior art documents relating to the above. Summary of the Invention [Problem to be solved by the invention]

[0007] The present invention has been made in view of the above circumstances, and an object of the present invention is to prevent the theft of electric wires in rolling wiring. [Means for solving the problem]

[0008] To solve the above problems, one aspect of the present invention has the following configuration: a case body forming a tunnel in the longitudinal direction, multiple pipe holding members suspended inside the case body, a lifting mechanism for lifting the pipe holding members off the ground surface, and connecting parts provided on the case body for connecting adjacent case bodies in the longitudinal direction.

[0009] Inside the case body, the pipes of the rolled wiring are held by a pipe holding member, and the lifting mechanism raises the pipes above the ground surface. Then, the weight of the pipes is applied to the case body via the pipe holding member, pressing the case body against the ground surface. This makes it difficult to remove the case body that covers the pipes, and it is also difficult to cut the pipes and wiring except for the case body.

[0010] In addition, since bellows-shaped piping generally places its weight on the piping holding member, the piping may get caught on the piping holding member or friction between the piping and the piping holding member may increase, making it difficult to pull the piping out of the tunnel. [Effects of the Invention]

[0011] Therefore, according to the present invention, it is possible to prevent theft of electric wires in rolling wiring. [Brief explanation of the drawings]

[0012] [Figure 1] 1A and 1B are schematic diagrams (front cross-sectional view and plan view) of a wiring anti-theft device according to one embodiment of the present invention. [Figure 2] 1 is a schematic diagram (right side view) of a wiring anti-theft device according to an embodiment of the present invention. [Figure 3] FIG. 1 is an explanatory diagram of a wire theft prevention device according to an embodiment of the present invention. [Figure 4] FIG. 1 is an explanatory diagram of a wire theft prevention device according to an embodiment of the present invention. [Figure 5] FIG. 1 is an explanatory diagram of a wire theft prevention device according to an embodiment of the present invention. [Figure 6] FIG. 1 is an explanatory diagram of a wire theft prevention device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0013] Hereinafter, an embodiment of the present invention (hereinafter referred to as "the present embodiment") will be described with reference to the accompanying drawings. In this specification and drawings, components having substantially the same functions or configurations are designated by the same reference numerals, and redundant explanations will be omitted.

[0014] FIG. 1(b) is a front cross-sectional view of the wired anti-theft device, and FIG. 1(a) is a plan view of the wired anti-theft device. FIG. 1(b) shows the AA cross section of FIG. 1(a). FIG. 2 is a right side view of the wired anti-theft device. The AA cross section of FIG. 2 also appears as FIG. 1(b). FIG. 1(a) and FIG. 2 show two wired anti-theft devices 10 connected together. When referring to one and the other of the connected wired anti-theft devices 10 individually, they are distinguished by the reference numerals 10A and 10B. Due to space limitations, the longitudinal direction is partially omitted in FIG. 1(a) and FIG. 2.

[0015] 1 and 2 includes a case body 1 that forms a tunnel in the longitudinal direction, and multiple pipe holding members 2 that are suspended inside the case body 1. The wiring anti-theft device 10 also includes a lifting mechanism 3 that lifts the pipe holding members 2 above the ground surface G, and a connecting portion 4 that is provided on the case body 1 and connects adjacent case bodies 1 together in the longitudinal direction.

[0016] More specifically, in this embodiment, the case body 1 is formed of a sufficiently strong material such as metal or polycarbonate. The case body 1 has a top surface 11 and two opposing side surfaces 12, 12 extending from the top surface 11 toward the ground. The case body 1 forms a tunnel in the space enclosed by the top surface 11 and the opposing side surfaces 12, 12. Pipes (also referred to as "cable protection pipes" or simply "protection pipes") H are arranged in a bundle within the tunnel. Wiring (also referred to as "electric wires" or "power cables") C runs through each pipe H. In this embodiment, the cross-sectional shape of the case body 1 is U-shaped (rectangular) consisting of the top surface 11 and the side surfaces 12, 12, as shown in FIG. 1(b). However, this is not limited thereto, and the cross-sectional shape of the case body 1 may be formed into an arc shape or the like in which the top surface 11 and the side surfaces 12, 12 are continuous. The shape of the case body 1 may be any shape that can enclose the pipes H between itself and the ground surface G.

[0017] In this embodiment, the ground contact portion of the case body 1 is provided with skirt portions 5, 5. The skirt portions 5, 5 are provided on the ground contact portions of the two side surfaces 12, 12 of the case body 1. The skirt portions 5, 5 are provided in a strip shape along the longitudinal direction of the case body 1. The skirt portions 5, 5 are also molded integrally with the case body 1 from metal. The strips of the skirt portions 5, 5 are set in a direction facing the ground surface G.

[0018] The skirt portions 5, 5 are provided with a plurality of ground surface fixing portions 51. The ground surface fixing portions 51 are holes formed in the skirt portion 5. The case body 1 is fixed to the ground surface G by installing fixing devices (pegs) P through the holes of the plurality of ground surface fixing portions 51 and toward the ground surface G.

[0019] The pipe holding member 2 is a J-shaped metal fitting. A thread (not shown) is formed on the top of the pipe holding member 2. The top of the pipe holding member 2 passes through a hole formed in the top surface 11 of the case body 1 and engages with a nut serving as a lifting mechanism 3 on the top surface 11. This holds the pipe holding member 2 in a suspended state from the top surface 11. The pipe holding member 2 is designed to hold the pipe H on the hook portion of the J-shaped metal fitting.

[0020] The lifting mechanism 3 has a nut that engages with a screw formed on the upper part of the piping holding member 2. The lifting mechanism 3 adjusts the height of the engagement between the screw and the nut formed on the upper part of the piping holding member 2, thereby adjusting the height of the J-shaped fitting as the piping holding member 2 from the ground surface G.

[0021] The connecting portion 4 has a structure for connecting two identically shaped wired anti-theft devices 10A, 10B in the longitudinal direction. The connecting portion 4 has a slightly larger dimension of the case body 1 so that the rear end of the wired anti-theft device 10A can be overlapped with the front end of the wired anti-theft device 10B. The connecting portion 4 has bolt holes 14 for fastening a connecting plate 6 with a bolt 7 between the two wired anti-theft devices 10A, 10B when they are stacked together. In this embodiment, the connecting plate 6 is provided at three locations on the top surface 11 and one location on each of the side surfaces 12, 12.

[0022] The skirt portions 5, 5 of the connecting portion 4 are also slightly raised from the ground surface G so that the skirt portion 5 at the rear end of the wiring anti-theft device 10A and the skirt portion 5 at the front end of the wiring anti-theft device 10B can overlap.

[0023] The through holes of the piping holding member 2 formed in the case body 1 are arranged so that the positions of the through holes of the two wiring anti-theft devices 10A and 10B are aligned when the two devices are stacked one on top of the other. In this embodiment, the positions of the through holes of both devices are aligned, and one piping holding member 2 is inserted into each through hole.

[0024] The through holes through which the piping holding member 2 is inserted are provided symmetrically on the left and right sides when viewed from the plane of Fig. 1(a). Also, when viewed from the side in Fig. 2, three through holes through which the piping holding member 2 is inserted are provided at equal intervals from the front (left as viewed) to the rear (connecting part 4 on the right as viewed) of the case main body 1.

[0025] Similarly, the contact surface fixing portions 51 of the skirt portion 5 are provided symmetrically on the left and right sides when viewed from the plane of Fig. 1(a). Also, when viewed from the side in Fig. 2, the contact surface fixing portions 51 are provided in three locations at equal intervals from the front (left as viewed) to the rear (connecting portion 4 on the right as viewed) of the case body 1.

[0026] However, the dimensions and positions of each element shown in the figure may be designed as appropriate according to the specifications of the piping to be protected. The length of the case body 1 is preferably about 1.5 m, taking into consideration ease of transportation and installation.

[0027] Next, a method for installing the wiring anti-theft device 10 according to this embodiment will be described.

[0028] First, the case body 1 is placed over the pipes H. The pipes H are placed inside the tunnel of the case body 1. Next, the pipes H are held by the pipe holding members 2. In this embodiment, of the five pipes H in the bundle, two pipes on either side are placed on the hooks of the pipe holding members 2 at two locations on the left and right and held. At this time, it is preferable that the hooks of the pipe holding members 2 are sandwiched between the bellows of the pipes H. The pipes H are held in the same way by all of the pipe holding members 2 attached to the case body 1. The pipe holding members 2 of the connecting portions 4 are inserted into the through holes after connecting adjacent case bodies 1 and aligning the through holes of the pipe holding members 2, and then held by the lifting mechanism 3.

[0029] Next, the pipe holding member 2 holding the pipe H is lifted above the ground surface G by the lifting mechanism 3. By tightening the nut serving as the lifting mechanism 3, the pipe holding member 2 is pulled upward from the ground surface G, and the pipe H is held in a state where it is lifted above the ground surface G.

[0030] Here, the lifting mechanism 3 may be adjusted first to lift the pipe holding member 2 above the ground surface G, and then the pipe H may be placed and held on the hook of the pipe holding member 2 in this state. As a result, the pipe H is held in a state where it is lifted above the ground surface G.

[0031] Next, fasteners (pegs) P are attached to the ground surface fixing portion 51 to fix the skirt portion 5 to the ground surface G. The pegs can be driven in randomly. Screw pegs are preferably used for the pegs installed in the connecting portion 4. Furthermore, connecting plates 6 are attached to the connected case bodies 1, and bolts 7 are driven in to fix them.

[0032] The above steps are performed for all of the wiring anti-theft devices 10 to be connected. Although only two wiring anti-theft devices 10 are shown in the figure, there is no limit to the number of wiring anti-theft devices 10 that can be connected. The required number of wiring anti-theft devices 10 are connected so as to cover the entire pipe H.

[0033] With the above construction, the weight of the pipe H is applied to the case body 1 via the pipe holding member 2, pressing the case body 1 against the ground surface G. This makes it difficult to remove the case body 1 covering the pipe H, and it also makes it difficult to remove the case body 1 and cut the pipe H and wiring C.

[0034] Furthermore, since the skirt portion 5 is provided with a plurality of ground surface fixing portions 51 and is fixed to the ground surface G with fixing devices P, it becomes even more difficult to peel off the case body 1.

[0035] Furthermore, in this embodiment, at the connecting portion 4, adjacent case bodies 1 and skirt portions 5 are stacked together, and the connecting portion 4 penetrates the piping holding member 2, and the fixing device P penetrates the ground surface fixing portion 51, and multiple connecting plates 6 are fixed, so that the connection between adjacent wiring anti-theft devices 10 is strong, and it is difficult to untie the connection and cut the piping and wiring C through the gap.

[0036] Furthermore, since the accordion-shaped pipe H places its weight on the pipe holding member 2, the pipe H may get caught on the pipe holding member 2 or the friction between the pipe H and the pipe holding member 2 may increase, making it difficult to pull the pipe H out of the tunnel.

[0037] As described above, the wire theft prevention device 10 of this embodiment makes it difficult to cut the pipe H and the wire C, and to pull out the pipe H, thereby making it possible to prevent the wire C from being stolen.

[0038] [Method 1 to improve theft prevention] Next, a method for further enhancing the theft prevention effect of the wiring C will be described. Even if the above embodiment can prevent the pipe H from being pulled out, there remains the possibility that the wiring inside the pipe H may be pulled out. Therefore, a structure for preventing the wiring inside the pipe H from being pulled out is shown in FIG. 3. FIG. 3 shows a cross section along the longitudinal direction of the pipe H. Before the case body 1 is placed over the pipe H, first, a notch is made at any location in the pipe H to expose the internal wiring C through the notch.

[0039] Next, a rubber sheet is sandwiched between the wiring C exposed from the notch and the inner wall of the pipe at the back (lower in FIG. 3) as the elastic sheet 31. In this embodiment, the rubber sheet is wrapped around the wiring C.

[0040] Next, a hard rubber stopper 32 serving as an elastic body is inserted from the notch in the pipe H toward the wiring C. The dimensions of the stopper should be such that one end is in contact with the elastic sheet 31 wrapped around the wiring C, and the other end protrudes slightly (by a few centimeters) from the surface of the pipe H.

[0041] Then, a straight joint serving as the blocking device 33 is attached to the pipe H so as to cover the notch and tightened. The straight joint serving as the blocking device 33 blocks the notch while pressing the stopper 32. A straight joint is originally used to connect two pipes H, but it is also used to block the notch in the pipe H and press the stopper 32 toward the wiring C side.

[0042] 3, the wire C and the elastic sheet 31 wrapped around it are compressed between the stopper 32 and the inner wall of the pipe H. As a result, the frictional force around the wire C increases, making it difficult to pull out the wire C from the pipe H. If the compressed area of ​​the wire is covered with the wire theft prevention device 10, it is impossible to know where the wire is compressed.

[0043] A thief cannot remove the wiring C unless he or she removes the case body 1 and finds and removes the blocking device 33. It is extremely difficult to identify the location of the blocking device 33 from the long distance of covered piping H, and it takes a very long time to find it. Thefts are carried out in the middle of the night in a short time (usually about 30 minutes). In this time, there is neither the time nor the effort to remove the many connected case bodies 1. Therefore, when the thief is initially unsuccessful in removing the wiring C, he or she will give up and run away.

[0044] This minimizes damage to the solar power generation facility, and power generation can be resumed immediately by simply reconnecting the disconnected wiring C at the source. This significantly reduces material costs and power loss due to downtime.

[0045] Furthermore, if it becomes necessary to remove the electric wires due to the expiration of the contract for the solar power generation facility or the end of the equipment's lifespan, wire C can be pulled out again by pinpointing and releasing the compressed area of ​​the wiring as indicated on the construction drawings.

[0046] [Method 2 to improve theft prevention] The act of pulling out the wiring C from the pipe H can also be prevented by the structure shown in Fig. 4. Fig. 4 shows a cross section along the longitudinal direction of the pipe H. Before the case body 1 is placed over the pipe H, first, a notch is made at any location in the pipe H to expose the internal wiring C through the notch.

[0047] Next, holes are drilled in the inner wall of the pipe behind the notch (lower in Figure 4) to pass the cable tie 34 through. The holes through which the cable tie 34 is passed are a first hole that temporarily lets the tip of the cable tie 34 out of the pipe H, and a second hole that lets the tip of the cable tie 34 return into the pipe H. The first and second holes through which the cable tie 34 is passed should be formed side by side (at the front and back of the drawing) along the bellows groove of the pipe H. The first and second holes are a pair of holes through which one cable tie 34 is passed. When multiple cable ties 34, 34 are passed through as shown in Figure 4, multiple pairs of first and second holes through which the cable tie 34 is passed are formed according to the arrangement of each cable ties 34, 34.

[0048] Then, each cable tie 34, 34 is passed through the first and second holes, and the wire C is fastened with the cable tie 34, 34. This presses the wire C against the inner wall of the pipe H, increasing the friction between the wire C and the inner wall of the pipe H and making it difficult to pull the wire C out of the pipe H. After the cable tie 34, 34 is installed, the notch in the pipe H is closed with a straight joint serving as the closing device 33. This structure also provides the same theft prevention effect as the structure shown in Figure 3. Furthermore, the structure of Figure 4 is simpler than that of Figure 3 and can be installed on site in a relatively short time. Furthermore, the structure of Figure 4 can flexibly accommodate the amount and thickness of the wire C in the pipe by adjusting the length of the cable tie 34.

[0049] [Method 3 to improve theft prevention] Next, another method for enhancing the theft prevention effect will be described. FIG. 5 shows the upper end of the J-shaped fitting serving as the pipe-retaining member 2 exposed at the top of the case body 1 (top surface 11), and the nut serving as the lifting mechanism 3 that engages with it. As explained above, by turning the nut serving as the lifting mechanism 3, the J-shaped fitting serving as the pipe-retaining member 2 can be lifted up from the ground surface G, thereby allowing the weight of the pipe H floating above the ground surface G to be applied to the case body 1. Conversely, by turning the nut, the J-shaped fitting can be lowered to the ground surface G, so that the weight of the pipe H is no longer applied to the case body 1, and the case body 1 can also be lifted up from the ground surface G. If this happens, there is a risk that the case body 1 will be removed.

[0050] Therefore, it is advisable to add a structure to prevent the thief from turning the nut serving as the lifting mechanism 3. As shown in Figure 5, a convex metal fitting is installed as an operation prevention member 35 that covers the side of the nut. The dimensions of the convex metal fitting are narrow enough to prevent a tool used to turn the nut from entering between the nut and the convex metal fitting. A through hole 35a is provided at the top of the convex metal fitting, through which the upper end of the J-shaped metal fitting passes. Rivet holes are formed at corresponding positions on the legs of the convex metal fitting and on the top surface 11 of the case body 1 as fixing portions 36a. The convex metal fitting is fixed to the top surface 11 of the case body 1 with a rivet as a fixing member 36 that is passed through the rivet hole. If the rivet holes are provided in advance, the rivets can be quickly installed on-site using an electric riveter.

[0051] After the lifting mechanism 3 lifts the wiring holding member 2 and the pipe H above the ground surface G, the operation prevention member 35 is fixed to the case body 1 so as to cover the lifting mechanism 3. This makes it difficult for a thief to lower the pipe H, which is floating above the ground surface G, to the ground surface G, making it possible to provide a more robust anti-theft measure.

[0052] [Method 4 to improve theft prevention] 6, a convex metal fitting may be placed over the head of a peg serving as a fixing device P driven into the ground G, serving as an anti-release member 37. Rivet holes serving as fixing portions 38a are provided at corresponding positions on the convex metal fitting and the skirt 5. A rivet serving as fixing member 38 is passed through the rivet hole to fix the anti-release member 37 to the skirt 5. This makes it difficult for a thief to remove the peg from the skirt 5, providing an even stronger anti-theft measure. When fixing the convex metal fitting, it is advisable to align the longitudinal direction of the convex metal fitting with the longitudinal direction of the skirt 5.

[0053] The installation of the operation prevention member 35 and the release prevention member 37 described above is not essential. However, by adding these measures one by one, the difficulty of wiring theft increases dramatically. This is expected to have the effect of eliminating the device as a target for theft during the reconnaissance stage by criminals.

[0054] [How to increase the versatility of the case body] In the above embodiment, the case body 1 is formed from the top surface 11 and the side surfaces 12, 12. Here, the members constituting the case body 1 may be separated into a member forming the top surface 11 and a member forming the side surfaces 12, 12. In this case, rivet holes may be provided in the top surface member and the side surface member, respectively, and side surface members of the same shape may be fixed to opposing sides of the rectangular top surface member by rivet joining.

[0055] In this way, even if the width of the top surface member is changed depending on the width of the pipe H to be stored inside the case body 1, the side surface members can be used as common parts. This eliminates the need to manufacture and stock finished cases of various widths. By simply selecting the width of the top surface member according to the site, the case can be assembled and installed flexibly.

[0056] Here, the present invention is not limited to the above-described embodiment, and it goes without saying that various other applications and modifications are possible without departing from the gist of the present invention as set forth in the claims. For example, the above-described embodiment describes the configuration in detail and specifically to clearly explain the present invention, and is not necessarily limited to having all of the described configurations. Furthermore, it is also possible to add, delete, or replace some of the configurations of the present embodiment with other configurations. The present invention is suitable for rolled wiring in solar power plants, but is not limited to application to solar power plants. [Explanation of symbols]

[0057] 1...Case body, 2...Pipe holding member (J-shaped metal fitting), 3...Lifting mechanism (nut), 4...Connecting portion, 5...Skirt portion, 6...Connecting plate, 7...Bolt, 10, 10A, 10B...Wiring anti-theft device, 11...Top surface, 12...Side, 14...Bolt hole, 31...Elastic sheet (rubber sheet), 32...Stopper (elastic body), 33...Blocking device (straight joint), 34...Bundling band, 35...Operation prevention member (convex metal fitting), 35a...Through hole, 36, 38...Fixing member (rivet), 36a, 38a...Fixing portion (rivet hole), 37...Removal prevention member (convex metal fitting), 51...Ground surface fixing portion, C...Wiring, G...Ground surface, H...Piping, P...Fixing device (peg)

Claims

1. a case body that forms a tunnel in the longitudinal direction; a plurality of pipe holding members suspended inside the case body; a lifting mechanism that lifts the pipe holding member from the ground surface; a connecting portion provided on the case main body for connecting adjacent case main bodies in the longitudinal direction; A wiring theft prevention device.

2. a skirt portion provided on the grounding portion of the case body; a plurality of ground surface fixing portions provided on the skirt portion; The wire theft prevention device according to claim 1, comprising:

3. A method for installing the wiring anti-theft device according to claim 1, placing the case body over the piping; a step of holding the piping on the piping holding member; a step of lifting the pipe holding member holding the pipe from a ground surface by the lifting mechanism; connecting the adjacent case bodies to each other by the connecting portion; A method for installing wiring theft prevention devices, including:

4. 3. A method for installing the wiring anti-theft device according to claim 2, placing the case body over the piping; a step of holding the piping on the piping holding member; a step of lifting the pipe holding member holding the pipe from the ground surface by the lifting mechanism; connecting the adjacent case bodies to each other by the connecting portion; applying a fastener to the ground surface fastening portion to fasten the skirt portion to the ground surface; A method for installing wiring theft prevention devices, including:

5. The method for installing the wiring anti-theft device according to claim 3 or 4, Before the step of covering the piping with the case body, cutting out the piping; a step of sandwiching an elastic sheet between the wiring exposed from the notch and the inner wall of the pipe at the back; inserting an elastic body from the notch toward the wiring; a step of closing the notch while pressing the elastic body with a closing tool; A method for installing wiring theft prevention devices, including:

6. The method for installing the wiring anti-theft device according to claim 3 or 4, Before the step of covering the piping with the case body, cutting out the piping; forming a first hole in the inner wall of the pipe exposed from the notch, through which the cable tie is passed out of the pipe, and a second hole through which the cable tie passed out of the pipe is returned into the pipe; fastening the wiring inside the piping with a cable tie passed through the first and second holes; A method for installing wiring theft prevention devices, including:

7. The method for installing the wiring anti-theft device according to claim 3, After the step of lifting the pipe holding member from the ground surface by the lifting mechanism, a step of attaching an operation prevention member that prevents operation of the lifting mechanism; How to install wiring theft prevention devices.

8. The method for installing the wiring anti-theft device according to claim 4, After the step of applying fasteners to secure the skirt to the ground surface, a step of attaching a release-preventing member that prevents the fastener from being released, How to install wiring theft prevention devices.

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