Protective sheet for steel pipe columns

Abstract

To protect a charge part by easily covering the charge part without any skillfulness, especially, easily and securely covering the charge part in a complicated shape place.SOLUTION: A protection sheet for steel pipe pole consists of an insulating sheet A for electric pole body and an insulating sheet B for drawing-in, and the sheet A for electric pole body is provided with a rectangular cut part 2 from a lower edge to an upper edge of a laterally long rectangular center part, wherein a surface fastener is provided on an outer surface of the sheet at a circumference of the cut part 2, lock holes 8 are provided at four corners of the sheet 1, and magnets 9 are provided on both sides of the sheet 1. The sheet B for drawing-in has a rectangular center part sheet 11 covering a support base part piece of a low-pressure rack 51, and an upper sheet 12 covering an upper projection piece of the low-pressure rack 51 and a lower sheet 13 covering a lower projection piece of the low-pressure rack 51 connected to the center part sheet 11 above and below it, is provided with a surface fastener which can be freely bonded to the surface faster at the circumference of the cut part 2 of the sheet A for electric pole body on both sides of an inner side face of the center part sheet 11.SELECTED DRAWING: Figure 9

Description

Technical Field

[0001] The present invention relates to a protective sheet that covers a charging line near a utility pole where an electric wire is passed through or held, and cuts or connects a charging line during electrical work on the utility pole. By covering the utility pole and the charging part near the utility pole, even if the charging part during the work contacts a utility pole, an electric wire support, etc., it will not short-circuit, preventing electric shock to the operator.

Background Art

[0002] In recent years, when replacing or newly installing large utility poles, long concrete poles may be difficult to transport due to transportation regulations. Therefore, prefabricated steel pipe poles that can be used in difficult-to-carry places and narrow places and are suitable for pole erection in narrow places are widely used.

[0003] On the other hand, during electrical work to cut and connect the charging line near the utility pole, in the case of a concrete pole, even if the charging part during the work touches the utility pole, there is no short circuit. Therefore, the work was carried out with only protection focused on preventing short circuits between different phases. However, since the utility pole has changed from a concrete pole to a steel pipe pole, not only different phases but the entire pole body has become a grounding body, and short circuits occur when contacting anywhere on the pole body. Therefore, protection of the utility pole body is also required.

[0004] Patent Document 1 is a "protective member and insulating sheet" that covers a utility pole, Patent Document 2 is an "insulating sheet" that integrally covers a utility pole and a cross arm, and Patent Document 3 has developed an "insulating protective gear" that covers the electric wire at the fixing point, a clamp cover insulator, and a cross arm of a utility pole.

[0005] However, these cover the utility pole itself and the pole installation location with a substantially rectangular insulating sheet, and do not cover it finely according to a complex shape.

[0006] Therefore, in actual electrical work, protective conduits made of rubber are used for the wire portion of the charging lines, and connection points and other areas that cannot be fully covered by these conduits are protected with sheets with rubber straps. In addition, pole-mounted equipment is protected using two types of rectangular sheets with rubber straps. For complex pole-mounted equipment such as wire anchoring points and through-points, it is difficult to protect them separately from the charging lines, so they are covered and protected as a single unit.

[0007] In particular, at points where wires pass through, multiple sheets with rubber cords are combined in a devised way to protect the exposed parts of the wires so that binding work can be carried out to secure the wires passing through pole-mounted equipment such as low-voltage racks. [Prior art documents] [Patent Documents]

[0008] [Patent Document 1] Japanese Patent Publication No. 2015-122827 [Patent Document 2] Japanese Patent Publication No. 2015-15858 [Patent Document 3] Japanese Patent Publication No. 2016-7089 [Disclosure of the Invention] [Problems that the invention aims to solve]

[0009] Furthermore, when cutting or connecting charging lines near utility poles, the protective sheeting in that section is removed each time, and then reattached after the work is completed. This makes the process time-consuming. In addition, since the protective sheets are general-purpose products, fitting them to the anchoring and routing points is time-consuming, and because the elastic cords have a fixed length, workers must consider where the ends will catch when wrapping them. For these reasons, skilled techniques are required to provide adequate protection.

[0010] Therefore, in order to solve the above-mentioned problems, this invention aims to provide a protective sheet for steel pipe poles that does not require skilled labor, can easily cover the grounding portion of utility poles and pole mounting equipment, and in particular can easily and reliably cover and protect the grounding portion of complexly shaped areas such as anchoring and through-holes, and enables quick and safe cutting and connecting of power lines. [Means for solving the problem]

[0011] The invention of claim 1 consists of an insulating sheet for the main body of a utility pole and an insulating sheet for wiring, the sheet for the main body of a utility pole has a rectangular cutout extending from the lower edge of the central part toward the upper edge, hook-and-loop fasteners are provided on the outer surface of the sheet around the cutout, locking holes are provided at each of the four corners of the sheet, magnets are provided on both sides of the upper part of the sheet, the sheet for wiring consists of a rectangular central sheet that covers the support base piece of the low-voltage rack, an upper sheet that covers the upper projection of the low-voltage rack, and a lower sheet that covers the lower projection of the low-voltage rack, all connected above and below the central sheet, the upper sheet and the central sheet and the lower sheet and the central sheet are connected only in the central part by cuts from both sides, and the inside of the central sheet A protective sheet for a steel pipe pole is provided, with hook-and-loop fasteners on both sides of the sheet that can be attached to the hook-and-loop fasteners around the cutouts of the sheet for the utility pole body, a bolt hole in the center of the upper sheet, a notch made from one end of the bolt hole to the upper edge, and hook-and-loop fasteners for attaching the overlapping side ends when the upper sheet covers the outer circumference of the upper projection of the low-voltage rack are provided on the outer and inner surfaces of both ends of the upper sheet, respectively, and a bolt hole in the center of the lower sheet, a notch made from one end of the bolt hole to the lower edge, and hook-and-loop fasteners for attaching the overlapping side ends when the lower sheet covers the outer circumference of the lower projection of the low-voltage rack are provided on the outer and inner surfaces of both ends of the lower sheet, respectively.

[0012] Furthermore, the invention of claim 2 is a protective sheet for a steel pipe column as described in claim 1, wherein the upper sheet has a small hook-and-loop fastener on the upper part of its outer surface, and a plurality of small hook-and-loop fasteners arranged side by side on the upper part of its inner surface, and when the upper sheet is wrapped around and bonded to the upper projection of the low-pressure rack, the edges of the upper sheet that do not contain the upper projection of the low-pressure rack are overlapped and bonded to each other with the plurality of small hook-and-loop fasteners.

[0013] Furthermore, the invention of claim 3 is a protective sheet for a steel pipe column according to claim 1 or 2, wherein hook-and-loop fasteners that can be adhered to each other are provided along the inner surfaces of the lower ends on both sides of the cutout of the lower sheet, and when the lower sheet is wrapped around and adhered to the lower projection of the low-pressure rack, the edges of the lower sheet that do not contain the lower projection of the low-pressure rack are overlapped and adhered to each other with the hook-and-loop fasteners.

[0014] Furthermore, the invention of claim 4 consists of an insulating sheet for the utility pole body and an insulating anchoring sheet, the sheet for the utility pole body is a horizontally elongated rectangle with a rectangular cutout extending from the lower edge of the central part toward the upper edge, hook-and-loop fasteners are provided on the outer surface of the sheet around the cutout, locking holes are provided at each of the four corners of the sheet, and magnets are provided on both sides of the upper part of the sheet, the anchoring sheet consists of a quadrilateral sheet sized to cover a low-voltage anchoring rack, and two parallel cutouts are provided spaced apart from the center of the upper edge of the sheet toward the lower edge, A small hook-and-loop fastener is provided on the inner surface between two notches, and horizontally elongated rectangular hook-and-loop fasteners are provided on both sides of the small hook-and-loop fastener, flanking the notches. These small and rectangular hook-and-loop fasteners are adhesive to the hook-and-loop fasteners on the periphery of the notch in the utility pole body sheet, and hook-and-loop fasteners are provided along both side edges of the inner surface of the anchoring sheet to adhere to each other. These hook-and-loop fasteners are configured to overlap and adhere both lower ends of the anchoring sheet when the low-voltage rack is covered with the anchoring sheet, thus forming a protective sheet for a steel pipe pole.

[0015] Furthermore, the invention of claim 5 is a protective sheet for a steel pipe pole according to claim 1 or 4, having locking devices at both ends that can be locked into locking holes at the four corners of the sheet for the utility pole body, and an adjustable length rubber cord. [Effects of the Invention]

[0016] According to the invention of claim 1, in utility pole construction at the point where power lines are routed, the protective sheet is divided into a sheet for the utility pole body and a sheet for routing the lines. The sheet for the utility pole body is placed around the utility pole surrounding the low-voltage rack, and the sheet for routing the lines is placed over the support base piece, upper projection, and lower projection of the low-voltage rack. By bonding and connecting these, the area can be completely covered with a protective sheet, so that even if live parts come into contact with these areas during electrical work, a short circuit will not occur. When installing this protective sheet, the sheet for the utility pole body is wrapped around one side of the outer circumference of the utility pole, a string or the like is passed through the locking holes at the four corners, and the string or the like is wrapped around the back of the utility pole to secure it. The sheet for routing the lines is then wrapped around each part of the low-voltage rack, and finally, the ends of the central part of the sheet for routing the lines are bonded to the sheet for the utility pole body with hook-and-loop fasteners to integrate them. In this way, the steel pipe pole body and pole mounting equipment are completely concealed, and only the work area is exposed.

[0017] Furthermore, when covering a utility pole with a protective sheet, pressing the sheet for the utility pole itself against the pole causes the magnets on both sides to attract to the steel pipe pole, temporarily securing the sheet for the utility pole itself. This frees up the worker's hands, allowing them to attend to other tasks. Additionally, the sheet for wiring is cut to match the shape of the low-voltage rack, making installation easy. Moreover, the protective sheet does not create any unnecessary bulk, so it does not get in the way when securing the wires to the insulators of the low-voltage rack with binding wire.

[0018] Furthermore, according to the inventions of claims 2 and 3, the protective sheet can be wrapped around the low-voltage rack to match its shape, and the ends of the upper sheet and the ends of the lower sheet that do not have upper or lower protrusions of the low-voltage rack can be fastened with hook-and-loop fasteners. This provides excellent insulation during electrical work, and the protective sheet does not get in the way, making the work easier.

[0019] Also, according to the invention of claim 4, in the pole construction at the wire retention location, the protective sheet is divided into a pole body sheet and a retention sheet. The pole body sheet is covered on the pole around the low-voltage rack, and the retention sheet is covered on the low-voltage rack where the wire is retained. By adhering and connecting these, the pole at the retention location and its periphery can be completely covered with the protective sheet, so that even if the charging part during construction contacts these locations, a short-circuit accident will not occur.

[0020] When attaching the protective sheet, the pole body sheet is wound around one side of the outer periphery of the pole, a string or the like is passed through the locking holes at the four corners, and the string or the like is wound around the back of the pole and fixed. The retention sheet is wound around the low-voltage rack, and finally the end piece of the retention sheet is adhered to the pole body sheet with a surface fastener to be integrated. In this way, the steel pipe pole body and the pole-mounted equipment can be firmly concealed, and only the working location can be limited and exposed. Also, when covering the pole with the protective sheet, when the pole body sheet is pressed against the pole, the magnets on both sides are adsorbed to the steel pipe pole, so that temporary fixation can be achieved, leaving the operator's both hands free to start other operations.

[0021] Also, according to the invention of claim 5, by providing a rubber string with locking tools that can be locked at both ends at each locking hole at the four corners of the pole body sheet and whose length can be adjusted, it becomes easier to attach the pole body sheet to a part of the outer periphery of the steel pipe pole of the object to be covered. Although the outer diameters of the steel pipe poles of the objects to be covered are different, the length of the rubber string can be freely adjusted at that time, so the attachment work is easy. The length of the rubber string is left over, saving the trouble of winding it around other places.

Brief Description of the Drawings

[0022] [Figure 1] It is an outer view with the folded-back piece of the pole body sheet of the protective sheet in Embodiment Example 1 of this invention opened. [Figure 2] It is an inner view with the folded-back piece of the pole body sheet of the protective sheet in Embodiment Example 1 of this invention closed. [Figure 3]Partial diagram showing the state where the folded piece of the utility pole body sheet of the protective sheet in Embodiment Example 1 of this invention is closed. [Figure 4] External side view of the lead-through sheet of the protective sheet in Embodiment Example 1 of this invention. [Figure 5] Internal side view of the lead-through sheet of the protective sheet in Embodiment Example 1 of this invention. [Figure 6] Internal side view of the retaining sheet of the protective sheet in Embodiment Example 1 of this invention. [Figure 7] Perspective view of an adjustable-length rubber string for attaching the utility pole body sheet of the protective sheet in Embodiment Example 1 of this invention to a utility pole. [Figure 8] Front view showing the state where the utility pole body sheet of the protective sheet in Embodiment Example 1 of this invention is attached to the utility pole at the wire lead-through location. [Figure 9] Side view showing the state where the utility pole body sheet and the lead-through sheet of the protective sheet in Embodiment Example 1 of this invention are attached to the wire lead-through location. [Figure 10] Perspective view showing the state where the lead-through sheet of the protective sheet in Embodiment Example 1 of this invention is bent to fit the shape of a low-voltage rack. [Figure 11] Partial bottom view showing the state where the upper sheet of the lead-through sheet of the protective sheet in Embodiment Example 1 of this invention is wound around the upper protruding piece of a low-voltage rack. [Figure 12] Cross-sectional view taken along line W-W in Figure 11. [Figure 13] Cross-sectional view taken along line X-X in Figure 11. [Figure 14] Partial plan view showing the state where the lower sheet of the lead-through sheet of the protective sheet in Embodiment Example 1 of this invention is wound around the lower protruding piece of a low-voltage rack. [Figure 15] Cross-sectional view taken along line Y-Y in Figure 14. [Figure 16] Cross-sectional view taken along line Z-Z in Figure 14. [Figure 17] Side view showing the state where the utility pole body sheet and the retaining sheet of the protective sheet in Embodiment Example 1 of this invention are attached to the wire retaining location. [Figure 18] This is a partial cross-sectional front view, with the internal mechanism omitted, showing the protective sheet for the utility pole body and the anchoring sheet of Embodiment Example 1 of this invention attached to the anchoring point of the electric wire. [Figure 19] This is a side view of the power line routing point on a utility pole where the protective sheet of Embodiment Example 1 of this invention is used. [Figure 20] This is a front view of the power line routing point on a utility pole where the protective sheet of Embodiment Example 1 of this invention is used. [Figure 21] This is a side view of the point where a power line is secured to a utility pole using the protective sheet according to Embodiment Example 1 of this invention. [Modes for carrying out the invention]

[0023] (Example of Embodiment 1) The protective sheet of Embodiment Example 1 of this invention will be described with reference to Figures 1 to 6.

[0024] This protective sheet is divided into three parts: Sheet A for the utility pole itself, Sheet B for the cable run-through, and Sheet C for securing the cable.

[0025] As shown in Figures 1 to 3, the above-mentioned pole body sheet A consists of a horizontally elongated rectangular sheet 1 made of insulating material, large enough to cover more than half of the outer circumference of a certain width of the pole to be covered. A vertically elongated rectangular cutout 2 is provided in the central part, extending from the lower edge 1a to the upper edge 1b, and a female hook-and-loop fastener is provided on the outer surface of the sheet 1 around the cutout 2. Specifically, roughly vertically elongated female hook-and-loop fasteners 3a and 3b are provided along both the left and right sides of the cutout 2, respectively, and a small rectangular female hook-and-loop fastener 4 is provided on the upper edge of the cutout 2.

[0026] Furthermore, a horizontally elongated folded-over piece 5, lower than the height of the notch 2, is provided from one side edge of the notch 2. A small female hook-and-loop fastener 6 is provided on the outer surface of the folded-over piece 5, and a small male hook-and-loop fastener 7 is provided on the inner surface. In addition, locking holes 8 are provided at each of the four corners of the sheet 1, and magnets 9 are embedded on both sides of the upper part of the sheet.

[0027] As shown in Figures 4 and 5, the through sheet B described above consists of a rectangular central sheet 11 that covers the support base piece of the low-pressure rack, an upper sheet 12 that covers the upper projection of the low-pressure rack, and a lower sheet 13 that covers the lower projection of the low-pressure rack. The upper sheet 12 and the lower sheet 13 are connected to the upper and lower parts of the central sheet 11, and the upper sheet 12 and central sheet 11, and the lower sheet 13 and central sheet 11 are connected only at the central part by cuts 11a from both sides.

[0028] On both sides of the inner surface of the central sheet 11, elongated male hook-and-loop fasteners 14 are provided that can be attached to the female hook-and-loop fasteners 3a and 3b around the cutout portion 2 of the utility pole body sheet A.

[0029] Furthermore, a bolt hole 15 is provided in the center of the upper sheet 12, a notch 16 is provided from one end of the bolt hole 15 to the upper edge of the upper sheet 12, a vertically elongated female hook-and-loop fastener 17 is provided on one side edge of the outer surface of the upper sheet 12, and a small female hook-and-loop fastener 18 is provided on the upper edge between the notch 16 and the female hook-and-loop fastener 17. Furthermore, a vertically elongated male hook-and-loop fastener 19 is provided on one side edge of the inner surface of the upper sheet 12, opposite to the female hook-and-loop fastener 17 on the outer surface. In addition, three small hook-and-loop fasteners are provided in a row along the upper edge of the inner surface, a small male hook-and-loop fastener 20 is provided between the notch 16 and the male hook-and-loop fastener 19, and a small male hook-and-loop fastener 21 and a small female hook-and-loop fastener 22 are provided in a row to the right of the notch 16.

[0030] A bolt hole 23 is provided in the center of the lower sheet 13, and a notch 24 is provided from one end of the bolt hole 23 to the lower edge of the lower sheet 13. A vertically elongated female hook-and-loop fastener 25 is provided along one side edge of the outer surface of the lower sheet 13, and a vertically elongated male hook-and-loop fastener 26 is provided along one side edge of the inner surface, opposite to the female hook-and-loop fastener 25 on the outer surface, and these female hook-and-loop fasteners 25 and male hook-and-loop fasteners 26 are mutually adhesive. Furthermore, a male hook-and-loop fastener 27 and a female hook-and-loop fastener 28 that can adhere to the male hook-and-loop fastener 27 are provided along the lower end edge of the inner surface of the lower sheet 13, and across the notch 24.

[0031] Next, as shown in Figure 6, the anchoring sheet C consists of a quadrilateral insulating sheet 30 sized to cover the anchoring low-voltage rack. Two parallel notches 31, 31 are provided spaced apart from the center of the upper edge of the sheet 30 towards the lower edge. A small male hook-and-loop fastener 32 is provided on the inner surface between the two notches 31, 31, and horizontally elongated male hook-and-loop fasteners 33, 33 are provided on both sides of the small male hook-and-loop fastener 32, flanking the notches 31, 31. These small male hook-and-loop fasteners 32 and each of the male hook-and-loop fasteners 33, 33 are adhesively attached to the female hook-and-loop fasteners 3a, 3b and the small male hook-and-loop fastener 4 on the periphery of the notch 2 of the utility pole body sheet A. In addition, male hook-and-loop fasteners 34 and female hook-and-loop fasteners 35 are provided along both side edges of the inner surface of the sheet 30, which are adhesively attached to each other.

[0032] Furthermore, a length-adjustable rubber cord 36 for attaching the sheet A for the utility pole body to the utility pole will be described with reference to Figure 7. The length-adjustable rubber cord 36 consists of an expandable rubber cord 38 with hooks 37, 37 at both ends, and is provided with a length adjustment device 39, so that the length of the rubber cord 38 between the hooks 37, 37 at both ends can be adjusted.

[0033] This invention has the above configuration, and first, we will describe the attachment of protective sheets to the points where power lines are routed on utility poles.

[0034] As shown in Figures 19 and 20, the electrical wires 53 are routed through insulators 52 of a low-voltage rack 51 attached to a steel pipe pole 50. The electrical wires 53 are secured to the insulators 52 by binding wires 54.

[0035] The utility pole body sheet A is placed against the outer surface of the steel pipe column 50 surrounding the low-voltage rack 51. As a result, as shown in Figure 8, the utility pole body sheet A can be temporarily fixed to the steel pipe column 50 by the magnets 9, 9 on the upper sides.

[0036] In this state, two of the length-adjustable rubber cords 36 are prepared, and the support base piece 51a (see Figure 10) of the low-voltage rack 51 is inserted into the cutout portion 2 of the utility pole body sheet A to spread out the utility pole body sheet A. The hooks 37, 37 at both ends of the length-adjustable rubber cords 36 are then hooked into the locking holes 8 at the four corners, respectively, to secure the utility pole body sheet A to the outer circumference of the steel pipe pole 50. This securing of the utility pole body sheet A with the length-adjustable rubber cords 36 may be done after the cable-through sheet B, which will be described later, is attached to the low-voltage rack 51.

[0037] Subsequently, the cable pass-through sheet B is placed over the low-voltage rack 51, and the male hook-and-loop fasteners 14, 14 on the inner surfaces of both ends of the central sheet 11 of the cable pass-through sheet B are attached to the female hook-and-loop fasteners 3a, 3b of the utility pole body sheet A, thereby fixing the central sheet 11 to the utility pole body sheet A, so that the cable pass-through area is covered with the protective sheet as shown in Figure 9.

[0038] To fix the through-sheet B to the low-pressure rack 51, first, as shown in Figure 10, the through-sheet B is folded so that the upper sheet 12 and lower sheet 13 are bent at a right angle to the central sheet 11 to match the shape of the low-pressure rack 51, and the central sheet 11 of the through-sheet B is placed inside the support base piece 51a of the low-pressure rack 51, the upper sheet 12 is placed on the lower surface of the upper projection 51b, and the lower sheet 13 is placed on the upper surface of the lower projection 51c.

[0039] At that time, as shown in Figures 11 and 12, the bolts of the low-pressure rack 51 are passed through the bolt holes 15 via the notches 16 in the upper sheet 12, and the upper sheet 12 is placed against the lower surface of the upper projection 51a of the low-pressure rack 51. The edges on both sides of the upper sheet 12 are folded upward and overlapped with the upper surface of the upper projection 51b, and the female hook-and-loop fasteners 17 on the outer surface of the upper sheet 12 and the male hook-and-loop fasteners 19 on the inner surface of the upper sheet 12 are overlapped and bonded together.

[0040] Furthermore, the vertical length of the upper sheet 12 in Figures 4 and 5 is longer than the length of the upper projection 51b of the low-pressure rack 51, and the upper end (tip) does not reach the upper projection 51b. Therefore, as shown in Figure 13, the small male hook-and-loop fastener 21 and the small female hook-and-loop fastener 22 of the upper sheet 12 are overlapped and bonded, and the small male hook-and-loop fastener 20 on the inner surface of the upper sheet 12 is overlapped and bonded to the small female hook-and-loop fastener 18 on the outside of the upper sheet 12 by pulling the notch 16 inward. As a result, the folded tip of the upper sheet 12 becomes tapered, and each sheet at the folded tip is bonded and sealed by the hook-and-loop fastener.

[0041] Furthermore, as shown in Figures 14 and 15, the bolts of the low-pressure rack 51 are passed through the bolt holes 23 via the notches 24 in the lower sheet 13, and the lower sheet 13 is placed against the upper surface of the lower projection 51c of the low-pressure rack 51. The edges on both sides of the lower sheet 13 are folded downward and overlapped with the lower surface of the upper projection 51c, and the male hook-and-loop fasteners 26 on the inner surface of the lower sheet 13 are overlapped with the female hook-and-loop fasteners 25 on the outer surface of the lower sheet 13 and bonded together.

[0042] Furthermore, the vertical length of the lower sheet 13 in Figures 4 and 5 is longer than the length of the lower projection 51c of the low-pressure rack 51, so the lower projection 51c does not reach the lower end (tip) of the lower sheet 13. Therefore, as shown in Figure 16, the lower edges of the inner surfaces of the lower sheet 13 are overlapped and the female hook-and-loop fastener 27 and the male hook-and-loop fastener 28 are bonded together. This seals the tip edge of the lower sheet 13.

[0043] Subsequently, the male hook-and-loop fasteners 14 on the inner surfaces of both sides of the central sheet 11 are overlapped with the female hook-and-loop fasteners 3a and 3b on both sides of the cutout portion 2 of the utility pole body sheet A shown in Figure 8, and then adhered. As a result, the passage area is covered with the protective sheet, as shown in Figure 9.

[0044] Next, we will describe how to attach the protective sheet of the present invention to the point where the power lines are secured on a utility pole.

[0045] As shown in Figure 21, the wires 53 are secured to the insulators 52 of the low-voltage rack 51 attached to the steel pipe pole 50 via anchoring clamps 55. A clamp cover 56 is placed over the anchoring clamp 55.

[0046] At the point where the electric wire is anchored, first, the pole body sheet A is placed over the steel pipe pole 50 surrounding the low-voltage rack 51. This is almost the same as in the case of the through-hole (see Figure 8). Then, the anchoring sheet C is placed over the low-voltage rack 51 and a part of the clamp cover 56.

[0047] At that time, the upper end of the sheet 30 in Figure 6 is spread outwards and folded through the two cutouts 31, 31 of the anchoring sheet C, and the small male hook-and-loop fasteners 32 and 33 on the inner surface of the sheet 30 are overlapped and adhered to the female hook-and-loop fasteners 3a, 3b, and 4 around the cutout 2 of the utility pole body sheet A, respectively. Then, the male hook-and-loop fasteners 34 and 35 on the inner surface of the sheet 30 located below the low-voltage rack 51 and clamp cover 56 are overlapped and adhered.

[0048] As a result, as shown in Figures 17 and 18, the anchoring points are covered and protected by the protective sheet.

[0049] In the above embodiment, male and female hook-and-loop fasteners were provided separately, but a hook-and-loop fastener that can be used for both male and female fasteners may also be used.

[0050] Furthermore, in the above embodiment example 1, a retractable folding piece 5 is provided in the notch 2 of the sheet A for the utility pole body. This is intended to be used with the folding piece 5 closed when the mounting base for the low-voltage rack to the steel pipe pole is small, but when the low-voltage rack is large, the folding piece 5 can be used with the folding piece 5 open. This folding piece 5 is not an essential requirement of this invention. [Explanation of Symbols]

[0051] A. Sheet for the utility pole itself. B. Sheet for wiring. C Retaining sheet 1 sheet 1a lower edge 1b Upper edge 2 Notch 3a Female hook-and-loop fastener 3b Female hook-and-loop fastener 4. Small female type fastener 5. Fold-over piece 6. Small female hook-and-loop fasteners 7. Small male hook-and-loop fasteners 8 Locking hole 9 Magnet 11. Center seat 12. Upper seat 13 Lower sheet 14 Male hook-and-loop fastener 15 bolt holes 16 notches 17. Female hook-and-loop fastener 18. Small female hook-and-loop fastener 19 Male hook-and-loop fasteners 20 Small male hook-and-loop fasteners 21 Small male hook-and-loop fastener 22 Small female hook-and-loop fastener 23 Bolt holes 24 Notches 25 Female hook-and-loop fasteners 26 Male hook-and-loop fasteners 27 Male hook-and-loop fastener 28 Female hook-and-loop fastener 30 sheets, 31 cuts 32 Small male hook-and-loop fasteners 33 Male hook-and-loop fasteners 34 Male hook-and-loop fastener 35 Female hook-and-loop fastener 36. Elastic cord with adjustable length 37. Hook 38 Elastic cord 39 Length adjuster 50 Steel pipe columns 51 Low-pressure racks 51a Support base piece 51b Upper protrusion piece 51c Lower projection 52 Insulator 53 Electric wire 54 Binding wire 55 Clamp 56 Clamp Cover

Claims

1. It consists of an insulating sheet for the main body of the utility pole and an insulating sheet for the wiring. The main body sheet of the utility pole has a rectangular cutout extending from the lower edge of the center towards the upper edge of the horizontally elongated rectangle, hook-and-loop fasteners are provided on the outer surface of the sheet around the cutout, locking holes are provided at each of the four corners of the sheet, and magnets are provided on both sides of the upper part of the sheet. The aforementioned through-sheet consists of a rectangular central sheet covering the support base piece of the low-pressure rack, an upper sheet covering the upper projection of the low-pressure rack, and a lower sheet covering the lower projection of the low-pressure rack, all connected above and below the central sheet. The upper sheet and the central sheet, and the lower sheet and the central sheet, are each connected only at the central portion by cuts on both sides. On both sides of the inner surface of the central sheet, hook-and-loop fasteners are provided that can be attached to the hook-and-loop fasteners around the cutout portion of the utility pole body sheet. A bolt hole is provided in the center of the upper sheet, a notch is provided from one end of the bolt hole to the upper edge, and hook-and-loop fasteners are provided on the outer and inner surfaces of both ends of the upper sheet, respectively, to bond the overlapping side ends when the upper sheet covers the outer circumference of the upper projection of the low-pressure rack. A protective sheet for a steel pipe column, characterized in that a bolt hole is provided in the center of the lower sheet, a notch is provided from one end of the bolt hole to the lower edge, and hook-and-loop fasteners are provided on the outer and inner surfaces of both ends of the lower sheet, respectively, for bonding the overlapping side ends when the lower sheet covers the outer circumference of the lower projection of the low-pressure rack.

2. The protective sheet for a steel pipe column according to claim 1, characterized in that the upper sheet has small hook-and-loop fasteners provided on the upper part of its outer surface, and a plurality of small hook-and-loop fasteners arranged side by side on the upper part of its inner surface, and when the upper sheet is wrapped around and bonded to the upper projection of the low-pressure rack, the edges of the upper sheet that do not contain the upper projection of the low-pressure rack are overlapped and bonded to each other with the plurality of small hook-and-loop fasteners.

3. A protective sheet for a steel pipe column according to claim 1 or 2, characterized in that hook-and-loop fasteners that can be freely adhered to each other are provided along the inner surfaces of the lower ends on both sides of the lower sheet, with the notches in between, and when the lower sheet is wrapped around and adhered to the lower projection of the low-pressure rack, the edges of the lower sheet that do not contain the lower projection of the low-pressure rack are overlapped and adhered to each other with the hook-and-loop fasteners.

4. It consists of an insulating sheet for the main body of the utility pole and an insulating sheet for securing it. The sheet for the main body of the utility pole has a rectangular cutout extending from the lower edge of the center towards the upper edge of the horizontally elongated rectangle, hook-and-loop fasteners are provided on the outer surface of the sheet around the cutout, locking holes are provided at each of the four corners of the sheet, and magnets are provided on both sides of the upper part of the sheet. The aforementioned anchoring sheet consists of a quadrilateral sheet sized to cover the low-voltage anchoring rack, with two parallel cuts spaced apart from the center of the upper edge of the sheet extending towards the lower edge, a small hook-and-loop fastener provided on the inner surface between the two cuts, and elongated rectangular hook-and-loop fasteners provided on both sides of the small hook-and-loop fasteners flanking the cuts, these small hook-and-loop fasteners and rectangular hook-and-loop fasteners being able to adhere to the hook-and-loop fasteners on the periphery of the cutouts of the utility pole body sheet, and hook-and-loop fasteners being provided along both side edges of the inner surface of the anchoring sheet to adhere to each other, and when the low-voltage rack is covered with the anchoring sheet, the lower ends of the anchoring sheet are overlapped and adhered using these hook-and-loop fasteners, characterized in that the sheet is configured to overlap and adhere to each other.

5. A protective sheet for a steel pipe pole according to claim 1 or 4, characterized in that it has locking devices at both ends that can be locked into locking holes at the four corners of the sheet for the utility pole body, and is provided with a rubber cord whose length can be adjusted.

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