Protective devices, power distribution equipment, and methods for removing protective devices

Abstract

The objective is to provide a protective device that is easy to install and handle, protects power distribution equipment, and prevents cable theft. [Solution] The present invention, which solves the above problems, is a protective device X comprising a covering part 1 that covers the power distribution equipment Y installed on a pole Y1 and is positioned to cover the power distribution equipment Y including the pole Y1, and a fixing part 2 that fixes the covering part 1 so that it does not move more than a predetermined distance from the installation surface. The covering part 1 covers the power distribution equipment Y and is fixed so that it does not move away from the ground.

Description

Technical Field

[0001] The present invention relates to a device for protecting cables from theft, particularly for use in solar power generation facilities.

Background Art

[0002] In solar power generation facilities, in order to connect solar panels and control equipment, copper cables with high electrical conductivity are widely used. Copper has excellent electrical conductivity and is an essential element for the efficient operation of solar power generation. However, with the increase in copper prices, thefts targeting copper have been increasing. Patent Document 1 describes a device that prevents theft by detecting current.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the device described in Patent Document 1, a person is required to respond to theft detection, so the maintenance cost is high, and repair costs are incurred because the equipment is damaged even when theft is detected. Therefore, it is preferable to prevent theft from occurring in the first place. By the way, when a thief steals a cable in a solar power generation facility, first, a predetermined operation is performed on the power distribution equipment to prevent electric shock during work. The inventor considered that theft of the cable can be prevented by physically strengthening the protection of this part.

[0005] In view of the above problems, an object of the present invention is to provide a protection device that is easy to install and handle, protects power distribution equipment, and can prevent cable theft in advance.

Means for Solving the Problems

[0006] The present invention, which solves the above problems, is a protective device for covering power distribution equipment installed on a pole, comprising a covering portion arranged to cover the pole and the power distribution equipment, and a fixing portion for fixing the covering portion so as not to be separated from the installation surface by a predetermined amount. This configuration protects the power distribution equipment, deters thieves, and hinders their work, thereby preventing cable theft. Furthermore, power distribution equipment covered by this protective device offers higher protection against theft compared to power distribution equipment not covered by the protective device. This protective device can be cut by a cutting process that involves cutting the covering portion. [Effects of the Invention]

[0007] The present invention, which solves the above problems, provides a protective device that is easy to install and handle, protects power distribution equipment, and prevents cable theft. [Brief explanation of the drawing]

[0008] [Figure 1] This is a front view of a protective device in a closed state, according to the first embodiment of the present invention. [Figure 2] This is a front view of a protective device with the door open, according to the first embodiment of the present invention. [Figure 3] This is a perspective view of a protective device according to a first embodiment of the present invention. [Figure 4] This is a part of an axial cross-sectional view of a protective device according to a first embodiment of the present invention. [Figure 5] This is an explanatory diagram relating to a radial cross-section of a connecting portion according to a first embodiment of the present invention. [Figure 6] This is an explanatory diagram showing a method for connecting a door section according to the first embodiment of the present invention. [Figure 7] This is a part of a radial cross-sectional view of a protective device according to the first embodiment of the present invention. [Figure 8] This is a perspective view of a protective device according to a second embodiment of the present invention. [Modes for carrying out the invention]

[0009] The protective devices X for the power distribution equipment Y according to each embodiment of the present invention will be described below with reference to the drawings. The description will detail the configuration of the embodiment, the method of implementation, and the modified examples. The embodiments described below are examples of the present invention and do not limit the present invention to the embodiments described below. Furthermore, the term "abbreviated" in the application documents is a concept that includes shapes that have been chamfered or rounded, and shapes in which the elements constituting the shape have been deformed or modified in length to the extent that it does not impede the purpose or effect of the configuration. Furthermore, in the application documents, the direction in which the column Y1 extends or the direction of the axis of the covering part 1 is defined as the upward direction, and the direction perpendicular thereto is defined as the lateral direction.

[0010] 《First Embodiment》 As shown in Figures 1 to 3, the present invention is a protective device X comprising a cover portion 1 that covers the power distribution equipment Y installed on pole Y1 and is positioned to cover the power distribution equipment Y including pole Y1, and a fixing portion 2 that fixes the cover portion 1 so that it does not move more than a predetermined distance from the installation surface. By covering the power distribution equipment Y with the cover portion 1 and fixing it so that it does not move away from the installation surface, the theft is prevented by making it impossible to touch the inside of the power distribution equipment Y.

[0011] The power distribution equipment Y comprises a pole Y1, a switchboard Y2 fixed to pole Y1 at a position above the ground, and a meter Y3 fixed to pole Y1 at the top of the switchboard Y2. The power distribution equipment Y also includes at least one power line Y4 connected to the switchboard Y2. In addition, various other equipment for controlling the solar power generation facility, such as current transformers and voltage transformers, may be attached to pole Y1.

[0012] Column Y1 is a column made of metal, concrete, or wood, with a length of at least 2 meters. The lower part of column Y1 is embedded in the ground, and the electric wire Y4 is routed along the axis of column Y1.

[0013] The distribution board Y2 is a device that distributes the power obtained from the solar power generation facility through the electric wire Y4 and transmits it to the outside. It also protects the circuit. In the embodiment, it is stored in a waterproof box and can be operated from the outside through the distribution hole 12A described later.

[0014] The meter Y3 is a part that measures and displays the amount of transmitted power and is connected to the distribution board Y2. The meter Y3 is exposed to the outside through the meter hole 13A described later, and by checking this, the amount of power sold by the solar power generation facility can be known.

[0015] The electric wire Y4 is a conductor wire covered with a protective coating that is an insulator. Copper is assumed as the conductor wire. The electric wire Y4 may be provided by bundling a plurality of wires with protective coatings.

[0016] The protection device X includes a substantially cylindrical covering portion 1 that abuts against the installation surface and covers the power distribution equipment Y together with the pillar Y1, and a fixing portion 2 that connects the covering portion 1 and the pillar Y1 and fixes the pillar Y1 so as not to leave the installation surface.

[0017] The covering portion 1 has a plurality of stacked plate-like covering bodies 10 that actually surround the power distribution equipment Y, a connecting portion 11 that connects the end sides of the covering bodies 10 to make the covering portion 1 cylindrical, and a door portion 12 that makes a part of the covering body 10 openable and exposes a part of the power distribution equipment Y to enable work.

[0018] The fixing portion 2 is a component that fixes the installation covering portion 101 so as not to be separated by a predetermined distance or more from the installation surface. It connects to the inner peripheral surface of the covering body 10 and has a covering fixing portion 21 fixed inside the covering body 10 and a pillar fixing portion 22 that connects the covering fixing portion 21 and the pillar Y1. The fixing portion 2 is provided at the lower part of the distribution board Y2 at a position visible from the distribution hole 12A. Preferably, the distribution board Y2 and the fixing portion 2 are close to each other to enhance the fixing performance.

[0019] The cover body 10 has an installation cover section 101 provided on the installation surface, an upper cover section 102 provided on the installation cover section 101, and a second-highest cover section 103 provided on the upper cover section 102. By combining multiple cover body 10s in this way, installation work is made easier and the bulk of transportation is reduced. In addition, the overall height of the cover section 1 is set to at least 1.8m to enhance the sense of intimidation by preventing people from seeing inside from above. In this embodiment, the cover body 10 has three levels, but it may have four or more levels, or two levels if cover body 10s with a high height are used. Specifically, the number of levels may be further increased by placing a cover body 10 with the same structure as the upper cover section 102 between the upper cover section 102 and the second-highest cover section 103.

[0020] The materials constituting the cover body 10 are all metal plates provided in a cylindrical shape by the connecting parts 11. It is preferable to use metals with high durability and corrosion resistance, such as stainless steel or titanium, for the metal plates, and in this embodiment, SuperDyma (registered trademark) is used. The thickness of the metal plates is at least 0.3 mm, more preferably 0.5 mm or more, and in this embodiment, 0.8 mm. In this way, increasing the thickness of the metal plates enhances robustness and increases the weight of the cover body 10, making it difficult to remove from the lower level.

[0021] The installation cover portion 101 is a cylindrical part whose lower end is located on the installation surface. In this embodiment, the installation surface is the ground, and the lower end surface of the installation cover portion 101 is in contact with the ground. Here, it is preferable to ensure good drainage of the ground so that water does not accumulate inside the cover portion 1.

[0022] In this embodiment, the installation cover portion 101 is in contact with the ground, but its lower end surface may be partially separated from the ground by, for example, a notch so that a person's arm cannot reach it (about 2-5 cm), allowing water that has entered the interior of the cover portion 1 to be drained from there. Furthermore, the installation surface may be underground, and a portion of the lower part of the installation cover 101 may be embedded in the ground, which would make the protective device X even more robust.

[0023] The cover body 10 ensures deformation performance and strength, and improves handling performance, by having an outer diameter at least 1 / 3 times its height. In this embodiment, the outer diameter of the installation cover section 101 is 650 mm, and its axial height is 1300 mm.

[0024] The upper cover portion 102 has a cylindrical shape similar to that of the installation cover portion 101, with an outer diameter similar to that of the installation cover portion 101, and an axial length that is slightly shorter than that of the installation cover portion 101. The uppermost cover portion 103 also has a cylindrical shape similar to that of the installation cover portion 101, with an outer diameter similar to that of the installation cover portion 101, and an axial length that is slightly shorter than that of the uppermost cover portion 102. In other words, by making the upper cover body 10 shorter in height compared to the lower cover body 10, the proportion of the overlapping portion 10A in the height direction, described later, is increased, thereby improving stability and making it easier to work at high places and install. Also, since the maximum diameter of each cover body 10 is approximately the same, expandability is increased, and the cover part 1 as a whole becomes a cylinder with a constant diameter.

[0025] When the installation cover portion 1 is formed, the outer diameter of the upper end of the installation cover portion 101 is smaller than the inner diameter of the lower end of the upper cover portion 102. As a result, as shown in Figure 4, the upper part fits with the upper cover portion 102, and the upper overlapping portion 10A is covered by the upper cover portion 102. At this time, the outer diameter of the overlapping portion 10A of the installation cover portion 101 is smaller than the outer diameter of the portion below it, forming a step.

[0026] In the upper cover portion 102, with the cover portion 1 formed, the outer diameter of the upper end of the upper cover portion 102 is smaller than the inner diameter of the lower end of the upper cover portion 102, and the inner diameter of the lower end is larger than the outer diameter of the upper end of the installation cover portion 101. As a result, it fits together with the upper-upper cover portion 103 in the same way as the installation cover portion 101, with the upper overlapping portion 10A being covered by the upper-upper cover portion 103, and the lower part fitting together with the installation cover portion 101, with the lower overlapping portion 10A covering a part of the installation cover portion 101. In the upper cover portion 102, the outer diameter of the upper overlapping portion 10A is smaller than the outer diameter of the portion below it, forming a step.

[0027] In the uppermost cover section 103, with the cover section 1 formed, the inner diameter of the lower end is larger than the outer diameter of the installation cover section 101, and it connects to the upper cover section 102. In this embodiment, the upper end of the uppermost cover section 103 is open, but the interior may be sealed by providing a lid that does not interfere with the power distribution equipment Y, thereby making it difficult for rainwater to enter.

[0028] As shown in Figure 4, the overlapping portion 10A is the part where the upper part of one cover body 10 and the lower part of another cover body 10 overlap. A fixing member R such as a rivet penetrates this portion, fixing the upper cover body 10 relative to the lower cover body 10 in both the vertical and rotational directions. This makes removal more difficult. Figure 4 is a schematic cross-sectional view of the overlapping portion 10A of the installation cover part 101, and the door part 12 and other parts are omitted.

[0029] The protrusion 10B restricts the positional relationship of the connecting cover body 10 in the vertical direction. That is, the protrusion 10B is an Ω-shaped portion in cross-section that protrudes radially from the outer peripheral surface of the cover body 10, and by interfering with the lower end of the cover body 10 installed on top, it restricts the downward movement of the upper cover body 10. In the embodiment, the height of the cover body 1 is ensured by providing the protrusion 10B above at least half of the cover body 10, preferably above 1 / 4. In the embodiment, the protrusion 10B is provided by deforming a plate material and the inner peripheral surface is recessed, but a flange-like component may be attached so as to surround the outer circumference of the cover body 10. Also, in the embodiment, the outer diameter of the overlapping portion 10A above the protrusion 10B is smaller than the inner diameter below, so that the cover body 10 is stepped at the protrusion 10B.

[0030] As shown in Figures 4 and 5, the connecting portion 11 is the part that connects the plate-shaped cover body 10 in the vertical direction to form a cylindrical shape. The connecting portion 11 has a projection 111 provided on a surface close to one end of the cover body 10, an inner fold 112 that is folded inward on the other end of the cover body 10 to reinforce the end, and an outer fold 113 that extends from the inner fold 112 and engages with the projection 111 at the end. Figure 5 is an enlarged cross-sectional view of the connecting portion 11 in the radial direction.

[0031] The projection 111 is a portion that protrudes toward the inner circumferential surface of the cover body 10 and connects one end side of the cover body 10 to the other end side by engaging with the end of the inner fold 112. The projection 111 is provided continuously with a part of the cover body 10 and consists of an inclined portion that is inclined with respect to the tangential direction of the cover body 10 and a vertical portion that is substantially perpendicular to the tangential direction, so that it rises up to form a substantially right triangle in plan view. Here, the inclined surface is positioned to face one end side, and the vertical portion is supported by contacting the outer fold 114. In this embodiment, multiple projections 111 are provided at equal intervals on a line parallel to the vertical direction, and their ends are connected at multiple points. Furthermore, the projections 111 are provided both in the portion below the convex portion 10B and in the overlapping portion 10A above it, thereby improving robustness. In addition, the projections 111 are provided so that they are longer in the vertical direction than in the tangential direction, increasing the length that contacts the inner fold 112.

[0032] The inner fold 112 and outer fold 113 are folds that are continuously provided along the entire vertical length on the other end of the cover body 10. By inserting one end of the cover body 10 between these folds, it can be easily connected, but it is also designed to be difficult to detach. Furthermore, the diameter can be narrowed depending on the insertion depth, making it easier to connect two cover bodies 10 together. The relationship between the shapes of the inner fold 112 and the outer fold 113 may be reversed, but the configuration shown in this embodiment is more preferable because it makes it more difficult to remove from the outside.

[0033] The inner fold 112 is an inverted J-shaped portion in plan view, provided on the inside of the cover body 10, with its end in contact with the vertical portion. The starting point of the inner fold 112 is continuous with the outer fold 113, and is folded back at a position close to the starting point of the outer fold 113. From this starting point, the inner fold 112 extends toward the projection 111 at a distance from the inner circumferential surface of the cover body 10, approximately parallel to the tangent to the cover body 10, and is folded back at a position further from one end than the projection 111. Furthermore, the distance from the end of the inner fold 112 to its starting point is set to be at least longer than the distance from one end to the projection 111, so that one end of the cover body 10 can be inserted and the projection 111 can be engaged. Preferably, the inner fold 112 is bent inward toward the inside of the cover body 10, making it easier for the projection 111 to catch.

[0034] The outer fold 113 is a U-shaped portion in plan view, provided on the outside of the projection 111, and its folding point is located at least further away from one end than the projection 111, thereby enhancing the holding performance of the outer fold 113. The outer fold 113 is located on the outside of the projection 111 by curving radially outward at its starting point.

[0035] Here, the cover portion 1 has a plurality of holes provided corresponding to the mounting position of the power distribution equipment Y in order to operate the power distribution equipment Y inside. In this embodiment, the installation cover portion 101 has a power distribution hole 12A for operating the switchboard Y2, and the upper cover portion 102 has a meter hole 13A for operating the meter Y3. These holes are large enough that the entire corresponding power distribution equipment Y can be seen when viewed from above. Furthermore, robustness is ensured by providing these holes at a predetermined distance (e.g., 50 mm) or more from the installation surface and protrusions 10B.

[0036] The door section 12 is a plate that allows the power distribution hole 12A to be opened and closed, and the sub-door section 13 is a plate that allows the meter hole 13A to be opened and closed. These main bodies (door body 120, sub-door body 130) are made of the same material as the cover section 1, have a shape corresponding to the outer surface of the cover section 1, and are provided to be at least wider than the width of the hole to be closed.

[0037] The door section 12 includes a door body 120, a door hinge 121 that rotatably supports the door body 120 relative to the cover section 1, a door projection 122 that protrudes from the portion of the cover section 1 that is covered by the door section 12 when closed, and a door hole 123 provided in the door body 120 that penetrates the door projection 122.

[0038] The door body 120 is installed to completely cover the power distribution hole 12A, preventing malicious access to the distribution panel Y2. The door hinge 121 is a hinge that connects the end of the power distribution hole 12A and the end of the door body 120 so that they can rotate around the vertical axis. The door hinge 121 is attached to each component by spot welding to prevent malicious removal.

[0039] As shown in Figure 6, the door projection 122 is inserted into the door hole 123 when the door portion 12 is closed, and the lock Z is provided on the door projection 122 to prevent the door body 120 from opening unintentionally. In this embodiment, the door projection 122 is a flat plate member mounted parallel to the vertical direction and has a hole for mounting the lock Z at a position away from the mounting starting point. The door hole 123 is a hole with a shape corresponding to the door projection 122. In this embodiment, the door projection 122 is provided protruding from the edge of the side opposite to the side where the door hinge 121 is provided, and protrudes from approximately the center position of the end edge of the door body 120. Figure 6(a) is a cross-sectional view of the side of the door projection 122 facing the hole when the door portion 12 is closed, and Figure 6(b) is a cross-sectional view of the area around the door projection 122.

[0040] The sub-door section 13 includes a sub-door body 130, a sub-door hinge 131, a sub-door projection 132, and a sub-door hole 133. Of these, the sub-door hinge 131, sub-door projection 132, and sub-door hole 133 are substantially the same as the corresponding parts of the door section 12, so their explanation is omitted.

[0041] The sub-door body 130 is provided in the meter hole 13A to cover the area below the display portion of the meter Y3, making the display of the meter Y3 easier to see and concealing the wiring to make it difficult to prevent electric shock. In addition, by providing the sub-door body 130 to be opened and closed, the meter replacement work is made easier.

[0042] The cover fixing part 21 is a fastener that fixes the inner circumference of the cover body 10 in a mounted state. In this embodiment, the cover fixing part 21 has a mounting part 211 which is an angle for mounting the cover body 10, and circumferential fixing parts 212 at both ends of the mounting part 211 that connect both ends of the mounting part 211 to the inner circumferential surface of the cover body 10. The circumferential fixing part 212 is a bent metal fitting, one side of which connects to the mounting part 211 and the other side connects to the inner circumferential surface of the cover body 10. The connection between this and the cover body 10 is made stronger and more difficult to remove maliciously by having a fixing member R without screw holes penetrate the cover body 10.

[0043] The column fixing part 22 is a metal fitting that fixes the erection part 211 to the column Y1. In this embodiment, it is a U-shaped bolt whose end is penetrated and fixed to the erection part 211, and whose circumferential surface surrounds the column Y1. This prevents the protective device X from moving or tilting relative to the column Y1, and also prevents the column fixing part 22 from interfering with the distribution board Y2 or the like when attempting to lift and remove the protective device X, so as not to move more than a predetermined distance from the installation surface.

[0044] The installation and removal methods of the present invention will be described in detail below with reference to Figures 1 to 7. The present invention is implemented by installers who install and remove the protective device X from the power distribution equipment Y. Furthermore, the method shown below is just one example and is not limited to this method, and the order may be different.

[0045] First, as part of the installation process, the installer bends the plate-shaped installation cover 101 to surround the column Y1, connecting one end to the other end via the connecting part 11 to form a cylindrical shape. Next, the installer places the lower end of this installation cover 101 on the installation surface.

[0046] Next, the contractor installs the fixing part 2 through the power distribution hole 12A as part of the fixing part installation process. More specifically, the contractor brings the erection part 211 into contact with the column Y1, and in that state, fixes the circumferential fixing part 212 to the installation cover part 101 to install the fixing part 2.

[0047] Next, the installer installs the upper cover section 102 as an expansion step. Specifically, the installer bends the plate-shaped upper cover section 102 over the upper part of the installation cover section 101 so as to surround the column Y1, and connects it via the connecting section 11 to form a cylindrical shape. After that, the user inserts the lower end of the upper cover section 102 into the upper end of the installation cover section 101 to raise the height of the cover section 1. Next, the installer performs the same operation on the plate-shaped upper-upper-level cover section 103, inserting the lower end of the upper-upper-level cover section 103 into the upper end of the upper-level cover section 102, thereby further increasing the height of the cover section 1. Here, the connection part 11 is designed so that it cannot be removed unless its diameter is widened, and in the overlapping part 10A, the upper cover body 10 covers the outer circumference of the lower cover body 10, making it difficult to remove the cover part 1 unless starting from the uppermost cover body 10.

[0048] Finally, as part of the door installation process, the installer attaches the door section 12 and the sub-door section 13 to their designated positions and completes the protective device X by attaching the lock Z in the closed state. At this time, the sub-door section 13 is installed so that the meter Y3 is visible, thereby improving usability.

[0049] When the installer needs to remove the device, they can do so by reversing the steps of the expansion process, the fixing part installation process, and the installation process. On the other hand, if the connection part 11 is difficult to remove due to rust or other reasons, the cover part 1 is cut with a grinder or the like as part of the cutting process. When cutting, it is preferable to first cut the part where the cover body 10 and the door part 12 are connected to expose the distribution board Y2, and then perform the prescribed treatment to prevent the risk of electric shock.

[0050] 《Second Embodiment》 The protective device X according to the second embodiment of the present invention will be described in detail below with reference to Figure 8. Components identical to those in the first embodiment will be described using the same reference numerals. The protective device X according to the embodiment comprises a covering portion 1 that covers the power distribution equipment Y and is positioned to cover the power distribution equipment Y including the pole Y1, and a fixing portion 2 that fixes the covering portion 1 so as not to be separated from the installation surface by a predetermined amount.

[0051] The cover portion 1 includes a stacked cover body 10, a connecting portion 11, a door portion 12, and a sub-door portion 13. Here, the cover body 10 is provided in the shape of a rectangular prism having an arbitrary polygonal cross-section, and in this embodiment, the cross-section is square. The door portion 12 is provided on one of the sides of the cover body 10, and the sub-door portion 13 is provided on the side opposite to the door portion 12. This simplifies the shape of the door.

[0052] The cover body 10 is divisible into two U-shaped members, each of substantially the same shape. One of the vertically parallel ends has a projection 111, while the other has an inner fold 112 and an outer fold 113. This allows the projection 111 at each end of the U-shaped member to be inserted between the folds and connected. This enables easy installation without bending the board. The number of divisions is not limited to two; it may be three or more. In this way, by providing one connecting section 11 on each of the opposing surfaces, installation can be made easier even when the upper cover section 102 is raised.

[0053] Furthermore, the shape of the cover body 10 does not necessarily have to include the protrusions 10B as in the embodiment; it is sufficient if the lower part fits so as to cover the upper part. In other words, the cover body 10 may have a frustoconical shape overall, such that its diameter narrows from the lower end to the upper end. In this case, it is preferable to incline the line on which the projections 111 are provided at equal intervals with respect to the vertical direction.

[0054] The form of the fixing part 2 is not limited to this embodiment; for example, it may be fixed by wrapping a band around the column Y1, or the column Y1 may be clamped using two or more erection parts 211.

[0055] Furthermore, the cover portion 1 has a cover body 10 made of plate material, and the cover body 10 has connecting portions 11 that connect the side ends of the plate material in the vertical direction, thereby facilitating transportation and assembly.

[0056] Furthermore, the cover body 10 is a bendable metal plate, and the connecting part 11 connects one side of the cover body 10 to the side opposite to this side, making the cover part 1 cylindrical and thus easier to assemble.

[0057] Furthermore, the cover portion 1 includes an installation cover portion 101 positioned on the installation surface and an upper cover portion 102 positioned on top of the installation cover portion 101. The upper cover portion 102 is provided so as to surround a part of the outer periphery of the installation cover portion 101, thereby facilitating installation at a height and facilitating removal.

[0058] Furthermore, the cover portion 1 has an openable and closable door portion 12 at the height where the power distribution equipment Y is installed, thereby protecting the power distribution equipment Y while improving the workability of inspection work and other tasks.

[0059] Furthermore, the fixing part 2 prevents the cover part 1 from being removed by fixing the column Y1 and the cover part 1 inside the cover part 1. In addition, the fixing part 2 is provided at a height close to the door part 12, which improves the workability during installation.

[0060] The power distribution equipment Y, including pole Y1, is surrounded by a protective device X. The protective device X includes a cover portion 1 positioned to cover pole Y1 and the power distribution equipment Y, and a fixing portion 2 that secures the cover portion 1 so that it does not move more than a predetermined distance from the installation surface, thereby enhancing the protection of the power distribution equipment Y.

[0061] A method for removing the protective device X, which includes a cutting step of cutting the cover portion 1, allows for easy removal even if the cover bodies 10 cannot be separated from each other. In the cutting step, it is particularly preferable to cut the door hinge 121 and the door projection 122. [Explanation of Symbols]

[0062] X Protective device 1 Covering part 10 Cover body 101 Installation cover 102 Upper cover section 103 Uppermost covering section 10A overlap part 10B protrusion 11 Connection part 111 Protrusion 112 Inner fold 113 Outer fold 12 Door section 12A distribution hole 120 Door body 121 Door hinge 122 Door protrusion 123 Door Hole 13. Sub-door section 13A Meter hole 130 Sub-door body 131. Side door hinge 132 Sub-door projection 133 Side door opening 2 Fixed part 21 Cover fixing part 211 Erection section 212 Peripheral fixed part 22 Pillar fixing part Y Distribution equipment Y1 Column Y2 switchboard Y3 Meter Y4 power line R fixing member Z Lock

Claims

1. A protective device that covers power distribution equipment installed on a pole, A covering portion arranged to cover the aforementioned column and the aforementioned power distribution equipment, A protective device comprising a fixing part for fixing the covering part so that it does not move more than a predetermined distance from the installation surface.

2. The aforementioned cover portion has a cover body which is made of a plate material, The protective device according to claim 1, wherein the cover body has a connecting portion that connects the side ends of the plate material.

3. The cover body is a bendable metal plate, The protective device according to claim 2, wherein the connecting portion connects one side of the cover body to the side opposite to the one side, and the cover portion is cylindrical.

4. The cover portion comprises an installation cover portion positioned on the installation surface and an upper cover portion positioned on top of the installation cover portion. The protective device according to claim 2, wherein the upper covering portion is provided so as to surround a part of the outer circumferential surface of the installation covering portion.

5. The protective device according to claim 1, wherein the covering portion has an openable and closable door portion at the height at which the power distribution equipment is installed.

6. The protective device according to claim 1, wherein the fixing part fixes the column and the covering part inside the covering part.

7. Power distribution equipment that is covered by a protective device and installed on a pole, The protective device includes a cover portion that is arranged to cover the pole and the power distribution equipment, A power distribution system comprising a fixing part for securing the cover portion so that it does not move more than a predetermined distance from the installation surface.

8. A protective device that covers power distribution equipment installed on a pole, A covering portion arranged to cover the aforementioned column and the aforementioned power distribution equipment, The covering portion is provided with a fixing portion that secures it so that it does not rise above a predetermined distance from the ground, The method for removing the protective device having an openable and closable door at the height where the power distribution equipment is installed, A method for removing a protective device, including a cutting step of cutting the cover portion.

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