JP5714275B2 - Insulation protection cover for indirect hot-wire construction - Google Patents

Description

  In the indirect hot wire method, the present invention covers distribution line-related equipment such as distribution lines, insulators, and clamps above the power poles related to the distribution lines in order to prevent electric shock accidents, short circuits, and ground faults during work. The present invention relates to an insulating protective cover for indirect hot wire construction.

  Due to the dramatic spread of OA equipment such as computers and other electrical products in ordinary homes and offices in recent years, the indirect hot-wire method that performs electrical work such as inspection and repair related to distribution lines without providing power failure time It has become mainstream.

  However, with this indirect hot wire method, work is carried out with the power distribution line etc. energized, so there is a high possibility of electric shock accidents, short circuits, ground faults, etc. during work. In order to prevent this, it was common to cover distribution line related machines such as distribution lines, insulators, and clamps with protective insulation sheets.

  There exists patent document 1 as an example of this insulating sheet for protection. The protective insulating sheet disclosed in Patent Document 1 is a magnetic insulating sheet made of a rubber sheet or a resin sheet having an insulating property, and a magnetic force is applied to relative positions facing each other when the electric insulating sheet is folded in half. By arranging a plurality of permanent magnets that can be joined to each other. By suspending the protective insulating sheet along the distribution line so as to be folded in half and covered, it is wound around the distribution line by the attractive force of the opposing permanent magnets.

JP 2006-340462 A

  According to Patent Document 1, the protective insulating sheet is folded in half and suspended on the distribution line, etc., so that the opposing permanent magnets are attracted to each other and the protective insulating sheet is fixed to the distribution line, etc. Coating becomes possible.

  However, this flexible protective insulation sheet can be attached to the distribution line by suspending the central part of the protective insulation sheet folded in half by the operation of an insulation work tool, for example, an insulation tool, on the distribution line. Further, the work of attracting the opposing permanent magnets and attaching them to the distribution line is extremely troublesome and requires a lot of work time, and a large work load is required for the worker. Moreover, skill is required for the work.

  Therefore, when performing electrical work in the live line state, insulation protection cover for indirect live line work that can cover and remove distribution line related equipment etc. easily and reliably by simple work and reduce the work burden on the worker Is to provide.

The invention of the insulation protective cover for indirect hot-wire work according to claim 1, which achieves the above object, is provided in the indirect hot-wire work insulation protective cover for indirect hot-wire work that covers the distribution line related equipment above the power pole in the indirect hot wire method. A first cover part and a second cover part having a width dimension corresponding to a covering range of the electric wire-related device and having a base end edge that is openably and closably connected via a hinge and facing each other, the first cover part, A first receiving surface having a concave end extending in the width direction along the base end edge on the inner peripheral surface, the front end edge extending substantially parallel to the base end edge and serving as a swing end; A first abutting surface extending along an edge of the one receiving surface; a first guide surface formed between the edge and the tip edge along the edge of the first abutting surface; The second cover portion has a distal end edge that extends substantially parallel to the base end edge and serves as a swing end, and has an upper end on the inner peripheral surface. A second housing that constitutes a housing portion that accommodates a covering range of the distribution line-related equipment in cooperation with the first housing surface in a concave shape facing the first housing surface of the first cover portion and extending in the width direction. A second abutting surface extending along an edge of the second receiving surface, facing the first abutting surface and capable of abutting on the first abutting surface, and the second contact surface and a second guide surface away from the gradually upon first guide surface as migrating to the tip edge from the end edge extending along the edge of the contact surface, the rib-like on the outer surface of the second cover portion A protruding gripping portion is integrally formed, and is provided on the first cover portion that holds and holds the first contact portion of the first cover portion and the second contact portion of the second cover portion in contact with each other. In a state where the first permanent magnet and the second permanent magnet provided on the second cover part, the first contact part of the first cover part and the second contact part of the second cover part are in contact with each other. A second surface fastener and a first surface fastener provided on the second cover portion provided in the first cover portion for holding bonded to have, and further comprising a.

According to this, when mounting the insulating protective cover, the gripping part is gripped by the insulating tool, and the first permanent magnet provided on the first cover part of the insulating protective cover and the second permanent magnet provided on the second cover part are provided. In the state where the first contact portion of the first cover portion and the second contact portion of the second cover portion are held in contact with each other, and the first guide surface of the insulating protective cover and With the second guide surface in contact with the distribution line related device, the insulation protection cover is attached in a state where the first guide surface of the first cover portion and the second guide surface of the second cover portion are in contact with the distribution line related device. The first guide surface of the first cover portion, the second guide surface of the second cover portion, the first contact surface, and the second contact surface are in sliding contact along the distribution line related device by moving to the wire related device side. The first cover portion and the second cover portion are gradually expanded around the hinge. When the insulation protection cover is further moved, the first contact surface and the second contact surface slide along the distribution line related devices and pass through the distribution line related devices. Accordingly, the distribution line related device is accommodated in the accommodation space between the first accommodation surface and the second accommodation surface, while the first contact surface and the second cover of the first cover portion that has passed through the distribution line related device. The second abutment surface of the part abuts by the adsorption of the first permanent magnet and the second permanent magnet, and is temporarily fixed in a state where the first cover part and the second cover part are closed. In this temporarily fixed state, the insulating protective cover can be firmly attached to a predetermined position by a simple operation of joining the first surface fastener and the second surface fastener. Accordingly, the distribution line related device is held in the accommodation space formed by the first accommodation surface of the first cover portion and the second accommodation surface of the second cover portion, and is covered by the first cover portion and the second cover portion. When performing distribution line work in a live line state, it is possible to prevent ground faults and short circuits and to achieve safety.

  On the other hand, the work of removing the insulating protective cover is performed by peeling the second surface fastener from the first surface fastener and moving the insulating protective cover so that the first cover part and the second cover part are moved to the first permanent magnet by the distribution line related equipment. And the second permanent magnet are pushed out against the suction and extracted from the distribution line related equipment, and the insulating protective cover is removed.

  The invention according to claim 2 is the insulating protective cover for indirect hot-wire construction according to claim 1, wherein the distribution line-related equipment is an insulator provided on a brace and a distribution line fixedly held by the insulator. It is characterized by.

  According to a third aspect of the present invention, in the insulation protective cover for indirect hot-wire construction according to the first aspect, the distribution line-related equipment is a high-pressure tension member that is installed between a clamp that holds the distribution line and a brace. It is a lion.

  According to a fourth aspect of the present invention, in the insulation protective cover for indirect hot-wire construction according to the first aspect, the distribution line-related device is held by a brace via a high-pressure tension insulator and clamps the distribution electric wire. It is characterized by being.

  According to a fifth aspect of the present invention, in the insulating protective cover for indirect hot-wire construction according to the first aspect, the distribution line related device is a cylindrical cover that covers the distribution line.

  The invention according to claim 6 is the insulating protective cover for indirect hot-wire construction according to claim 1, wherein the distribution line-related equipment is held by a brace via a high-voltage tension insulator and clamps the distribution line. And a cylindrical cover that covers the distribution line.

  Claims 2 to 6 exemplify the distribution line-related equipment that is the object of the insulation coating of claim 1, and the insulator provided on the armature, the distribution line fixedly held on the insulator, the high voltage resistance The insulating protective cover can be easily and reliably attached to the tension insulator, the clamp, the cylindrical cover that covers the distribution line, the distribution line in the gap range between the clamp and the cover, and the like.

  According to the present invention, in the state where the first contact portion of the first cover portion of the insulation protection cover and the second contact portion of the second cover portion are held in contact with each other, the insulation protection cover can be operated by operating the insulation work tool or the like. The distribution line related device is accommodated in the accommodation space between the first accommodation surface and the second accommodation surface by moving the insulation protection cover by bringing the first guide surface and the second guide surface into contact with the distribution line related device. In addition, the second contact surface of the second cover portion comes into contact with the first permanent magnet and the second permanent magnet and is temporarily fixed in a state where the first cover portion and the second cover portion are closed. In this state, the insulating protective cover can be firmly attached to a predetermined position by a simple operation of joining the first surface fastener and the second surface fastener, thereby reducing the work burden on the operator.

It is explanatory drawing of the distribution line related apparatus with which the insulation protection cover which shows the outline | summary of 1st Embodiment is mounted | worn, and an insulation protection cover. It is an expanded view of an insulation protective cover. It is a figure which shows the mounting state of an insulation protective cover. It is A arrow directional view of FIG. FIG. 4 is an arrow B view of FIG. 3. It is a figure which shows the outline | summary of the mounting | wearing operation | work of an insulation protective cover. It is a figure which shows the installation work procedure of an insulation protective cover. It is a schematic explanatory drawing of the distribution line related apparatus with which the insulation protection cover in 2nd Embodiment is mounted | worn. It is a perspective view which shows the state which mounted | wore the high voltage tension insulator with the insulation protective cover. It is an expanded view of an insulation protective cover. It is a figure which shows the installation work procedure of an insulation protective cover. It is a figure which shows the state which mounted | wore the clamp with the insulation protective cover. It is a figure which shows the state which mounted | wore the distribution line with the insulation protective cover. It is a figure which shows the state which mounted | wore the distribution line protective cover with the insulation protective cover.

  An embodiment of an insulating protective cover for indirect hot wire construction according to the present invention will be described with reference to the drawings.

(First embodiment)
A first embodiment of an insulating protective cover for indirect hot wire construction according to the present invention will be described with reference to FIGS.

  FIG. 1 shows an insulation protective cover 10 according to the present embodiment and a distribution line-related device insulated by the insulation protective cover 10, that is, a pin insulator 5 attached to a brace 1 on a power pole and a distribution fixed to the pin insulator 5. FIG. 2 is a diagram showing an outline of the electric wire 8, FIG. 2 is a diagram showing an unfolded state of the insulating protective cover 10, FIG. 3 is a diagram showing a mounted state of the insulating protective cover 10, FIG. FIG. 4 is a view taken in the direction of arrow B in FIG. 3.

  Prior to the description of the insulating protective cover 10, an outline of the pin insulator 5 and the distribution line 8, which are distribution line related devices that are insulated and covered with the insulating protective cover 10, will be described with reference to FIG. 1.

  The arm 1 attached to the utility pole is formed of a square hollow steel material extending in a substantially horizontal direction. Corresponding to the lever mounting portion of the arm 1, pin insertion holes (not shown) are formed on the upper surface 2 and the lower surface 3.

  On the other hand, the pin insulator 5 is referred to as a No. 6 pin insulator and is constituted by the insulator body 6 and the support pin 7. The insulator body 6 includes a cap portion 6a, a skirt portion 6b, and a neck portion 6c that is located between the cap portion 6a and mooring the distribution line 8. A support pin 7 is provided on the base of the insulator body 6 so as to be coaxial with the insulator body 6. A bolt portion 7a that can be inserted into the pin insertion hole of the arm 1 is formed at the tip of the support pin 7, and the bolt portion 7a. An annular stopper 7b is formed on the base end side.

  In this pin insulator 5, the bolt portion 7 a of the support pin 7 is inserted from the pin insertion hole opened in the upper surface 2 of the arm 1, and the stopper 7 b comes into contact with the upper surface 2 through the pin insertion hole in the lower surface 3. In this state, a nut (not shown) is fastened to the bolt portion 7a and fixed to the arm 1.

  The distribution line 8 is fixed to the insulator body 6 by the insulator band 9 in a state in which the distribution line 8 is extended along the neck portion 6c formed in the insulator body 6 of the pin insulator 5 fixed to the arm 1. .

  The insulating protective cover 10 is made of resin, and a perspective view in a use state is shown in FIG. 1 and a width dimension L corresponding to a preset coverage of the distribution line 8 is shown in FIG. Each of the base end edges 11a and 21a is connected to each other through a hinge 29 so as to be openable and closable so as to face each other, and is constituted by a first cover part 11 and a second cover part 21 which are opposed to each other. .

  The first cover portion 11 includes a distal end edge 11 b that is a swing end substantially parallel to the proximal end edge 11 a connected to the hinge 29, and the proximal end edge 11 a extends on the inner peripheral surface facing the second cover portion 21. A flat belt-like shape having a first receiving surface 12 having a concave or groove-like cross section extending over the entire width L along the direction, and being bent along the edge 12a of the first receiving surface 12 and facing the second cover portion 21. The first contact surface 13 is formed. A first guide surface 14 which is bent outward from the end edge 13a of the first contact surface 13 and is continuous is formed between the end edge 13a and the front end edge 11b.

  Further, the first receiving surface 12, the first abutting surface 13, and the first guide surface 14 of the first cover portion 11 are divided at the center portion in the width direction, and both sides are formed at the edge of the divided first receiving surface 12. Contains the insulator body 6 of the pin insulator 5 in a box shape continuously bulging outward, that is, away from the second cover portion 21 and having a U-shaped lower end edge 15a and an open portion 15A formed below. A possible pin insulator housing 15 is integrally formed.

  The first permanent magnet 13M is embedded in the first contact surface 13, and the first surface fastener 16F is attached in the vicinity of the front end edge 11b of the outer peripheral surface 16.

  On the other hand, the second cover portion 21 includes a distal end edge 21 b that becomes a swing end substantially parallel to the proximal end edge 21 a connected to the hinge 29, and a proximal end edge 21 a on the inner peripheral surface facing the first cover portion 11. A concave or groove-like second accommodation surface 22 that faces the first accommodation surface 12 of the first cover portion 11 over the entire width L along the extending direction of the first housing portion 22, along the edge 22 a of the second accommodation surface 22. A flat belt-like second abutting surface 23 that is bent and is opposed to the first abutting surface 13 of the first cover portion 11 and is abuttable is formed. A second guide surface 24 which is bent outward from the end edge 23a of the second contact surface 23 and is continuous is formed between the end edge 23a and the front end edge 21b. The second cover portion 21 is integrally formed with a grip portion 25 protruding in a rib shape on the outer peripheral surface 26 thereof.

  Further, a second permanent magnet 23M that is opposed to the first permanent magnet 13M embedded in the first contact surface 13 of the first cover portion 11 and that can be attracted to the first permanent magnet 13M is embedded in the second contact surface 23. Is done.

  Furthermore, the flexibility provided with the 2nd surface fastener 26F which can be attached or detached with respect to the 1st surface fastener 16F provided in the 1st cover part 11 in the vicinity of the front-end edge 21b of the outer peripheral surface 26 of the 2nd cover part 21 is provided. The base end portion of the belt-like body 27 is combined.

  3 and FIG. 3 in a state in which the first contact surface 13 of the first cover part 11 and the second contact surface 23 of the second cover part 21 which are connected to be freely opened and closed through the hinges 29 are in contact with each other. As shown in FIG. 5, an accommodation space 28 into which the distribution line 8 can be inserted is formed by the first accommodation surface 12 of the first cover portion 11 and the second accommodation surface 22 of the second cover portion 21. Moreover, the 1st guide surface 14 of the 1st cover part 11 and the 2nd guide surface 24 of the 2nd cover part 21 mutually separate gradually as it transfers to each front-end | tip edge 11b and 21b side.

  Next, a mounting procedure for mounting the pin insulator 5 and the distribution line 8 as the mounted portion of the insulating protective cover 10 configured as described above will be described with reference to FIGS. 6 and 7.

  When the insulation protection cover 10 is mounted, the first permanent magnet 13M provided on the first cover portion 11 of the insulation protection cover 10 and the second permanent magnet 13M provided on the second cover portion 21 are attracted to each other and the first cover is attached. The first contact part 13 of the part 11 and the second contact part 23 of the second cover part 21 are prepared in a closed state.

  In a state where the insulating protective cover 10 is closed, as shown in FIG. 6, the holding portion 25 of the second cover portion 21 is held by an insulating work tool, for example, the insulating jacket 100, and the insulating protective cover 10 is operated by operating the insulating jacket 100. In the upper part of the distribution line 8, the opening 15A of the pin insulator accommodating portion 15 is opposed to the pin insulator 5, and the first guide surface 14 of the first cover portion 11 and the second guide surface 24 of the second cover portion 21 are arranged. It is made to oppose the electric wire 8.

  In this way, the insulating protective cover 10 is such that the opening 15A of the pin insulator accommodating portion 15 faces the pin insulator 5 from above, and the first guide surface 14 of the first cover portion 11 and the second guide surface of the second cover portion 21. As shown in FIG. 7 (b), the insulation protection cover 10 is moved downward by the insulating jacket 100 from the state in which 24 is opposed to the distribution line 8 from above, that is, the state schematically shown in FIG. 7 (a). The first guide surface 14 of the first cover part 11 and the second guide surface 24 of the second cover part 21 are brought into contact with the distribution line 8.

  In a state where the first guide surface 14 of the first cover portion 11 and the second guide surface 24 of the second cover portion 21 are in contact with the distribution line 8, the insulation protection cover 10 is further moved downward, that is, arranged by the insulation jacket 100. When moving in the direction of the electric wire 8, the first guide surface 14 of the first cover portion 11 and the second guide surface 24 of the second cover portion 21 slide along the distribution wire 8, respectively. The second cover portion 21 is gradually expanded around the hinge 29, and the first contact surface 13 of the first cover portion 11 is then continued from the first guide surface 14 and the second guide surface 24 as shown in FIG. The second contact surface 23 of the second cover portion 21 contacts the distribution line 8 from both sides, and the opening 15A of the pin insulator housing portion 15 reaches the cap portion 16a of the pin insulator 5.

  Further, when the insulation protection cover 10 is moved downward, the first contact surface 13 and the second contact surface 23 slide along both sides of the distribution line 8 along the distribution line 8 and the edges 12a and 22a pass. . Thereby, the distribution line 8 is accommodated in the accommodating space 28 between the first accommodating surface 12 and the second accommodating surface 22 as shown in FIG. 7 (d), and the upper portion of the insulator body 7 of the pin insulator 5 is pin insulator. It is accommodated in the accommodating part 15. On the other hand, the first contact surface 13 of the first cover part 11 that has passed through the distribution line 8 and the second contact surface 23 of the second cover part 21 are attracted to each other by the first permanent magnet 13M and the second permanent magnet 23M. The first cover part 11 and the second cover part 21 are temporarily fixed in contact with each other.

  In this temporarily fixed state, the upper range of the cap portion 6a and the skirt portion 6b of the insulator body 6 in the pin insulator 5 is covered with the pin insulator accommodating portion 15 of the first cover portion 11, and the predetermined range of the distribution line 8 is the first range. The first cover covers the distribution line 8 through the accommodation space 28 formed by the first accommodation surface 12 of the first cover portion 11 and the second accommodation surface 23 of the second cover portion 21. Covered by the portion 11 and the second cover portion 21.

  As shown in FIGS. 7 (e) and 7 (f), the first cover part 11 and the second cover part 21 are temporarily fixed by the adsorption of the first permanent magnet 13M and the second permanent magnet 23M. The second surface fastener 26 </ b> F provided at the distal end portion of the belt-like body 27 whose base end portion is coupled to the two cover portion 21 is joined to the first surface fastener 16 </ b> F provided on the outer peripheral surface 16 of the first cover portion 11. As a result, the first cover 16 is connected to the first cover 11 by the first surface fastener 16F and the second surface fastener 26F where the distal ends of the strips 26 whose base end portions are fixed to the second cover portion 21 are joined to each other. The part 11 and the second cover part 21 are firmly connected.

  As a result, as shown in FIGS. 3 to 5, the insulator body 6 of the pin insulator 5 is covered with the pin insulator housing portion 15 of the first cover portion 11, and the predetermined range of the distribution line 8 is within the first cover portion 11 and the first cover portion 11. 2 When the insulation cover is applied by the cover portion 21 and the distribution line work or the like is performed in a live line state, it is possible to satisfactorily prevent a ground fault or a short circuit and achieve safety. Furthermore, it can prevent that the pin insulator accommodating part 15 fits into the insulator main body 6 of the pin insulator 5, and the insulation protective cover 10 slip | deviates from an insulation coating part during distribution line construction.

  On the other hand, the work of removing the insulating protective cover 10 is performed in reverse of the mounting procedure, by separating the second surface fastener 26F from the first surface fastener 16F by the insulating Yatco 100 or the like, and the first cover portion 11 and the second cover portion 21. The connection by the belt-like body 26, the first surface fastener 16F, and the second surface fastener 26F is released.

  And the holding part 25 of the 2nd cover part 21 is hold | gripped with the insulating Ytco 100, and the distribution line 8 is the end of the 1st accommodating surface 12 of the 1st cover part 11 by lifting the insulating protection cover 10 upwards with the Ytco 100. When the edge 12 a and the end edge 22 a of the second receiving surface 22 of the second cover portion 21 come into contact with each other and the second cover portion 21 of the insulating protective cover 10 is further lifted, the first cover portion 11 and the second cover are separated by the distribution line 8. The part 21 is pushed and spread against the adsorption by the first permanent magnet 13M and the second permanent magnet 23M and is extracted from the distribution line 8, and the pin insulator accommodating part 15 is detached from the insulator body 6 and the insulating cover 10 is removed. It is removed from the pin insulator 5 and the distribution line 6.

  Therefore, according to the insulating protective cover 10 according to the present embodiment, the first guide surface of the first cover portion 11 of the insulating protective cover 10 is obtained by gripping the grip portion 25 of the second cover portion 21 by operating the insulating jacket 100 or the like. 14 and the second guide surface 24 of the second cover portion 21 are in contact with the distribution line 8, the pin insulator receiving portion 15 is opposed to the pin insulator 5 from above, and the insulating protective cover 10 is moved downward to thereby distribute the pin. The first cover portion 11 and the second cover portion 21 are gradually pushed and expanded around the hinge 29 along the electric wire 8, the distribution line 8 is accommodated in the accommodating space 28, and the upper portion of the insulator body 7 of the pin insulator 5 is the pin insulator. The first abutting surface 13 of the first cover portion 11 and the second abutting surface 23 of the second cover portion 21 are accommodated in the accommodating portion 15, and the first permanent magnet 13M and the second permanent magnet 23M are attracted to each other. Temporarily fixed. In this temporarily fixed state, the insulating protective cover 10 is firmly attached to a predetermined position by a simple operation of joining the second surface fastener 26F at the tip of the belt-like body 26 to the first surface fastener 16F of the first cover portion 11. This reduces the work burden on the operator.

  Further, the first cover part 11 and the second cover part 21 are moved to the first cover part 11 and the second cover part 21 by the distribution line 8 by a simple operation of peeling the second face fastener 26F from the first face fastener 16F and lifting the insulating protective cover 10 upward by the YATCO 100. The first permanent magnet 13M and the second permanent magnet 13M are pushed and spread out against the attraction of the distribution line 8, and the pin insulator receiving portion 15 is detached from the insulator main body 6 so that the insulating cover 10 is connected to the pin insulator 5 and the distribution line 6. Can be removed from.

(Second Embodiment)
A second embodiment of the insulating protective cover for indirect hot wire construction of the present invention will be described with reference to FIGS.

  FIG. 8 is a diagram for explaining a distribution line-related device that is insulation-coated with an insulation protective cover in the present embodiment. The distribution line 8 fixed to a pin insulator (not shown) is clamped by a clamp 32 on a brace 1 on a utility pole. The distribution line 8 is held by holding the crank 32 by a high-pressure tension insulator 31 installed between the arm 1 and the clamp 32. The distribution line 8 held by the clamp 32 is covered with a cylindrical cover 34 at a portion spaced from the clamp 32.

  In the hot-wire construction, the high-voltage tension insulator 31, the clamp 32, the range 33 of the distribution line 8 exposed between the clamp 32 and the cover 34, and the cover 34 are respectively made of resin insulation protection covers 40, 60, 70, which will be described later. 80. Insulating coating.

  Hereinafter, the insulating protective covers 40, 60, 70, and 80 will be described in order.

  FIG. 9 is a perspective view showing a state in which the insulation protection cover 40 is attached to the high-pressure tension insulator 31, and FIG. 10 is a view showing a developed state of the insulation protection cover 40.

  The insulating protective cover 40 has a width dimension corresponding to the covering range of the high-pressure tension insulator 31, and the base end edges 41 a and 51 a are connected to each other through a hinge 59 so as to be openable and closable, and have a substantially cross-sectional arc shape. The first cover part 41 and the second cover part 51 are configured.

  The first cover part 41 includes a base end edge 41a and a front end edge 41b connected to the hinge 59, and a cross section over the entire width along the extending direction of the base end edge 41a on the inner peripheral surface facing the second cover part 51. A flat belt-shaped first contact surface 43 is formed having a concave or groove-shaped first storage surface 42 and bent along the edge 42 a of the first storage surface 42. Further, a first guide surface 44 that is bent outward from the end edge 43 a of the first contact surface 43 and is continuous is formed.

  Further, the first permanent magnet 43M is embedded in the first contact surface 43, and the first surface fastener 46F is pasted in the vicinity of the tip edge 41b of the outer peripheral surface 46. The first cover portion 41 is integrally formed with a grip portion 45 that protrudes in a rib shape on the outer peripheral surface 46 thereof.

  On the other hand, the second cover portion 51 includes a distal end edge 51b substantially parallel to the proximal end edge 51a connected to the hinge 59, and the entire width in the extending direction of the proximal end edge 51a on the inner peripheral surface facing the first cover portion 41. The first cover portion 41 has a concave or groove-like second storage surface 52 facing the first storage surface 42 of the first cover portion 41, and is bent along the edge 52 a of the second storage surface 52. A flat belt-like second contact surface 53 is formed so as to be opposed to the first contact surface 43 of 41. A second guide surface 54 that is bent outward from the edge 53a of the second contact surface 53 and is continuous is formed. The second cover portion 51 is integrally formed with a grip portion 55 protruding in a rib shape on the outer peripheral surface 56 thereof.

  Further, a second permanent magnet 53 </ b> M that can be attracted to the contact surface 53 so as to face the first permanent magnet 43 </ b> M embedded in the first contact surface 43 of the first cover portion 41 is embedded. Furthermore, it has the flexibility provided with the 2nd surface fastener 56F which can be attached or detached with respect to the 1st surface fastener 46F provided in the 1st cover part 41 in the vicinity of the front end edge 51b of the outer peripheral surface 56 of the 2nd cover part 51. The proximal end of the band 57 is joined.

  FIG. 9 shows a state in which the first contact surface 43 of the first cover part 41 and the second contact surface 53 of the second cover part 51 are in contact with each other via the hinge 59 so as to be freely opened and closed. As described above, the first accommodation surface 42 of the first cover part 41 and the second accommodation surface 52 of the second cover part 51 form an accommodation space 58 into which the high-pressure tension insulator 31 can be inserted. Further, the first guide surface 44 of the first cover portion 41 and the second guide surface 54 of the second cover portion 51 are gradually separated from each other as they move to the respective leading edges 41b and 51b.

  Next, a mounting procedure for mounting on the high-pressure tension insulator 31 serving as a mounted portion of the insulating protective cover 40 configured as described above will be described with reference to FIG.

  When the insulation protection cover 40 is mounted, the first permanent magnet 43M provided on the first cover portion 41 of the insulation protection cover 40 and the second permanent magnet 53M provided on the second cover portion 51 are attracted to each other and the first cover is attached. The first contact portion 43 of the portion 41 and the second contact portion 53 of the second cover portion 51 are prepared in a closed state in which they are held in contact.

  With the insulating protective cover 40 closed, the gripping portion 45 or 55 is gripped by an insulating work tool, for example, the insulating yoke 100, and the insulating protective cover 40 is positioned above the high-voltage tension insulator 31 with the tip edges 41b and 51b side downward. Thus, the first guide surface 44 of the first cover portion 41 and the second guide surface 54 of the second cover portion 51 are opposed to the high-pressure tension insulator 31.

  Then, the insulating protective cover 40 is moved downward by the insulating jacket 100, and the first guide surface 44 of the first cover portion 41 and the second guide surface 54 of the second cover portion 51 are pressurized as shown in FIG. It is brought into contact with the tension insulator 31.

  In a state where the first guide surface 44 of the first cover portion 41 and the second guide surface 54 of the second cover portion 51 are in contact with the high-pressure tension insulator 31, the insulating protection cover 50 is further moved downward by the insulating jacket 100, that is, When moved toward the high tension tension insulator 31, the first guide surface 44 of the first cover portion 41, the second guide surface 54 of the second cover portion 51, the first contact surface 43, The two contact surfaces 53 are slidably contacted, and the first cover portion 41 and the second cover portion 51 are gradually spread around the hinge 59 as shown in FIG.

  When the insulating protective cover 40 is further moved downward, the first contact surfaces 43 and the second contact surfaces 53 slide along both sides of the high-pressure tension insulator 31 along the high-pressure tension insulators 31 to end edges 42a, 52a passes. Thereby, the high-pressure tension insulator 31 is accommodated in the accommodating space 58 between the first accommodating surface 42 and the second accommodating surface 52 as shown in FIG. On the other hand, the first contact surface 43 of the first cover portion 41 and the second contact surface 54 of the second cover portion 51 that have passed through the high-pressure tension insulator 31 are formed between the first permanent magnet 43M and the second permanent magnet 53M. The first cover portion 41 and the second cover portion 51 are temporarily fixed in contact with each other by suction.

  In this temporarily fixed state, the high-pressure tension insulator 31 passes through the interior of the accommodation space 58 formed by the first accommodation surface 42 of the first cover portion 51 and the second accommodation surface 52 of the second cover portion 51, and enters the second space. Covered by the first cover part 41 and the second cover part 51.

  In a state where the first cover portion 41 and the second cover portion 51 are temporarily fixed by the adsorption of the first permanent magnet 43M and the second permanent 53M, the base end is attached to the second cover portion 51 as shown in FIG. The second surface fastener 56 </ b> F provided at the tip of the band-like body 57 to which the portions are coupled is joined to the first surface fastener 46 </ b> F provided on the outer peripheral surface 46 of the first cover portion 51. Accordingly, the first cover is connected to the first cover part 41 by the second surface fastener 56F and the first surface fastener 46F at which the distal ends of the belt-like bodies 57 whose base ends are fixed to the second cover part 51 are joined to each other. The part 41 and the second cover part 51 are firmly connected.

  As a result, as shown in FIG. 9, the high-voltage tension insulator 31 is insulated and covered by the first cover part 41 and the second cover part 51, and when grounding or short-circuiting is performed satisfactorily when performing distribution line work or the like in a live state. Can be prevented and safety can be achieved.

  On the other hand, the work of removing the insulating protective cover 40 is performed in reverse of the mounting procedure, by separating the second surface fastener 56F from the first surface fastener 46F and the first cover portion 41 and the second cover portion 51 with the insulating Yatco 100 or the like. The connection with the belt-like body 57, the first surface fastener 46F, and the second surface fastener 56F is released.

  The gripping portion 45 or the gripping portion 55 is gripped by the insulating yoke 100, and the insulating protective cover 10 is lifted upward by the yoke 100, so that the high-pressure tension insulator 31 is connected to the end of the first accommodation surface 42 of the first cover portion 41. When the edge 42a and the end edge 52a of the second receiving surface 52 of the second cover part 51 come into contact with each other and the insulation protection cover 40 is further lifted, the first cover part 41 and the second cover part 251 are The first permanent magnet 43 </ b> M and the second permanent magnet 53 </ b> M are spread out against the attraction and are extracted from the high-pressure tension insulator 31 and removed from the high-pressure tension insulator 31.

  Therefore, according to the insulating protective cover 40, the first guide surface 44 and the second cover portion 51 of the first cover portion 41 of the insulating protective cover 40 are gripped by the gripping portion 45 or the gripping portion 55 by operating the insulating jacket 100 or the like. The first guide portion 41 and the second cover portion 51 move the hinge 59 along the high-pressure tension insulator 31 by moving the insulating protective cover 40 downward by contacting the second guide surface 54 with the high-pressure tension insulator 31. The high-pressure tension insulator 31 is accommodated in the accommodating space 58 so that the first abutting surface 43 of the first cover portion 41 and the second abutting surface 53 of the second cover portion 51 are mutually first. The permanent magnet 43M and the second permanent magnet 53M are temporarily fixed by adsorption. In this temporarily fixed state, the insulating protective cover 50 is firmly attached to a predetermined position by a simple operation of joining the second surface fastener 56F at the tip of the belt-like body 57 to the first surface fastener 46F of the first cover portion 41. Can do.

  Also, the first cover part 41 and the second cover part 51 are removed by the high-pressure tension insulator 31 by a simple operation of peeling the second face fastener 56F from the first face fastener 46F and lifting the insulating protective cover 40 upward by the YATCO 100. Can be spread against the adsorption of the first permanent magnet 43M and the second permanent magnet 53M and extracted from the high-pressure tension insulator 31, and the insulating cover 40 can be removed from the high-pressure tension insulator 31.

  FIG. 12 is a perspective view showing a state in which the insulating protective cover 60 is attached to the clamp 32. The insulating protective cover 60 has the same basic configuration as the insulating protective cover 40 and will be described briefly.

  The insulating protective cover 60 has a width dimension corresponding to the covering range of the clamp 32, and each base end edge is connected through a hinge 69 so as to be openable and closable. The first cover part 61 and the second cover part 65 face each other. Composed.

  The first cover portion 61 and the second cover portion 65 have a first receiving surface 62 and a second receiving surface 66 each having a concave or grooved cross section facing the inner peripheral surface, and the first receiving surface 62 and the second receiving surface 66. A belt-shaped first contact surface 63 and second contact surface 67 that are opposed to each other along the edge of the surface 66 are formed. Further, a first guide surface 64 and a second guide surface 68 are formed which are bent outward from the edges of the first contact surface 63 and the second contact surface 67 and are continuous.

  Although not shown, the first permanent magnet and the second permanent magnet that are attracted to each of the first contact surface 63 and the second contact surface 67 are embedded, and the front end of the outer peripheral surface of the first cover portion 61 is embedded. A first surface fastener is affixed in the vicinity of the edge. On the other hand, the base end portion of the belt-like body having the second surface fastener detachable with respect to the first surface fastener provided in the first cover portion 61 is coupled to the second cover portion 65. The first permanent magnet, the second permanent magnet, the first surface fastener, and the second surface fastener are the first permanent magnet 43M, the second permanent magnet 53M, the first surface fastener 46F, and the second surface fastener of the insulating cover 40. A description of the same configuration as 56F will be omitted.

  The insulation protection cover 60 is attached to the clamp 32 with the first guide surface 64 of the first cover portion 61 and the second guide surface 68 of the second cover portion 65 being attached to the clamp 32 in a state where the insulation protection cover 60 is closed. The first guide surface 54 of the first cover portion 61 and the second guide surface 68 of the second cover portion 65 are brought into contact with the clamp 32 by facing and moving downward. When the insulating protective cover 60 is moved downward on the clamp 32 side, the first guide surface 64 of the first cover portion 61 and the second guide surface 68 and the first contact of the second cover portion 65 are moved along the clamp 32. The surface 63 and the second contact surface 67 are in sliding contact with each other, and the first cover portion 61 and the second cover portion 65 are gradually expanded around the hinge 69.

  Further, when the insulating protective cover 60 is moved downward, the first contact surface 63 and the second contact surface 67 pass along the clamp 32. Thereby, the clamp 32 is accommodated in the accommodating space between the first accommodating surface 2 and the second accommodating surface 66. On the other hand, the first contact surface 53 of the first cover portion 51 that has passed through the clamp 32, the second contact surface 67 of the second cover portion 65, and the first permanent magnet and the second permanent magnet contact each other by adsorption. The first cover part 61 and the second cover part 65 are temporarily fixed in a closed state.

  In this temporarily fixed state, the clamp 32 penetrates through the accommodation space formed by the first accommodation surface 62 of the first cover portion 61 and the second accommodation surface 66 of the second cover portion 65, and the first cover portion 61. And the second cover portion 65.

  The distal end portion of the belt-like body in which the base end portion is coupled to the second cover portion 65 in a state where the first cover portion 61 and the second cover portion 65 are temporarily fixed by the adsorption of the first permanent magnet and the second permanent magnet. The second surface fastener provided on the first cover portion 61 is joined to the first surface fastener provided on the first cover portion 61. Thus, the first cover part 61 and the second cover part 65 are firmly connected to each other by being connected to the first cover part 61 by the first surface fastener and the second surface fastener that are joined to each other.

  Further, the first cover portion 61 and the second cover portion 65 are made to be the first permanent magnet by the clamp 32 by a simple operation of peeling the first surface fastener and the second surface fastener and lifting the insulating protective cover 60 upward. The insulating cover 60 can be removed from the clamp 32 by being pushed out and spread out from the clamp 32 against the adsorption of the second permanent magnet.

  FIG. 13 is a perspective view showing a state in which the insulating protective cover 70 is attached to the portion 33 of the distribution line 8 exposed between the clamp 32 and the cover 34. The insulation protection cover 70 has the same basic configuration as the insulation protection cover 40, and the outline will be briefly described.

  The insulating protective cover 70 has a width dimension corresponding to the covering range of the distribution line 8, that is, the distance between the clamp 32 and the cylindrical cover 34, and each base end edge is connected to be freely opened and closed via a hinge 79. The first cover part 71 and the second cover part 75 having a substantially arcuate cross-section facing each other are formed.

  The first cover part 71 and the second cover part 75 have a first receiving surface 72 and a second receiving surface 76 having a concave or grooved cross section facing the inner peripheral surface, respectively. A belt-like first contact surface 73 and second contact surface 77 that are opposed to each other along the edge of the surface 76 are formed. Further, a first guide surface 74 and a second guide surface 78 are formed which are bent outward from the edges of the first contact surface 73 and the second contact surface 77 and are continuous.

  Although not shown in the drawings, first permanent magnets and second permanent magnets that are attracted to each of the first contact surface 73 and the second contact surface 77 are embedded in the vicinity of the front end edge on the outer peripheral surface of the first cover 71. 1st surface fastener is stuck by this. On the other hand, the base end portion of the belt-like body having the second surface fastener detachable with respect to the first surface fastener provided in the first cover portion 71 is coupled to the second cover portion 75. The first permanent magnet, the second permanent magnet, the first surface fastener, and the second surface fastener are the first permanent magnet 43M, the second permanent magnet 53M, the first surface fastener 46F, and the second surface fastener of the insulating cover 40. A description of the same configuration as 56F will be omitted.

  The insulation protective cover 70 is attached to the distribution line 8 with the first guide surface 74 of the first cover portion 71 and the first protective surface 70 closed by the first permanent magnet and the second permanent magnet being closed. The second guide surface 78 of the second cover portion 75 is opposed to the distribution line 8 and moved downward to arrange the first guide surface 74 of the first cover portion 71 and the second guide surface 78 of the second cover portion 75. It is brought into contact with the electric wire 8. Then, when the insulating protective cover 70 is moved to the lower distribution line 8 side, the first guide surface 74 of the first cover part 71 and the second guide surface 78 of the second cover part 75 and the first contact are aligned along the distribution line 8. The contact surface 73 and the second contact surface 77 are slidably contacted so that the first cover portion 71 and the second cover portion 75 are gradually expanded around the hinge 79.

  When the insulation protection cover 70 is further moved downward, the first contact surfaces 73 and the second contact surfaces 77 pass along the distribution line 8. Thereby, the distribution line 8 is accommodated between the first accommodation surface 72 and the second accommodation surface 76 between the clamp 32 and the cover 34. On the other hand, the first permanent magnet 73 and the second permanent magnet of the first contact surface 73 of the first cover portion 71 that have passed through the distribution line 8 and the second contact surface 77 of the second cover portion 75 are attracted by adsorption. The first cover portion 71 and the second cover portion 75 are temporarily fixed in contact with each other.

  In this temporarily fixed state, the distribution line 8 passes through the accommodation space formed by the first accommodation surface 72 of the first cover portion 71 and the second accommodation surface 76 of the second cover portion 75, and the first cover portion. 71 and the second cover portion 75.

  The distal end portion of the belt-like body in which the base end portion is coupled to the second cover portion 75 in a state where the first cover portion 71 and the second cover portion 75 are temporarily fixed by the adsorption of the first permanent magnet and the second permanent magnet. The second surface fastener provided on the first cover portion 71 is joined to the first surface fastener provided on the first cover portion 71. Accordingly, the first cover part 71 and the second cover part 75 are firmly connected to each other by being connected to the first cover part 71 by the first surface fastener and the second surface fastener that are joined to each other.

  Further, the first cover portion 71 and the second cover portion 75 are made to be the first permanent magnet by the distribution line 8 by a simple operation of peeling the mutual first surface fastener and the second surface fastener and lifting the insulating protective cover 70 upward. The insulation cover 70 can be removed from the distribution line 8 by being pushed out against the adsorption of the second permanent magnet and extracted from the distribution line 8.

  FIG. 14 is a perspective view showing a state in which the insulating protective cover 80 is attached to the cylindrical cover 34 that covers the distribution line 8. The insulation protection cover 80 has the same basic configuration as the insulation protection cover 40, and the outline will be briefly described.

  The insulating protective cover 80 has a width dimension corresponding to the covering range of the cover 34, and each base end edge is connected through a hinge 89 so as to be openable and closable, and is opposed to a first cover portion 81 having a substantially arcuate cross section. 2 cover part 85 is comprised.

  The first cover portion 81 and the second cover portion 85 have a first receiving surface 82 and a second receiving surface 86 having a concave or grooved cross section facing the inner peripheral surface, respectively. A belt-shaped first contact surface 83 and second contact surface 87 that are opposed to each other along the edge of the surface 86 are formed. Furthermore, a first guide surface 84 and a second guide surface 88 are formed which are bent outward from the edges of the first contact surface 83 and the second contact surface 87 and are continuous.

  Although not shown, the first and second permanent magnets that are attracted to each of the first contact surface 83 and the second contact surface 87 are embedded in the vicinity of the front end edge on the outer peripheral surface of the first cover 81. 1st surface fastener is stuck by this. On the other hand, the base end portion of the belt-like body provided with the second surface fastener that can be attached to and detached from the first surface fastener provided on the first cover portion 81 is coupled to the second cover portion 85. The first permanent magnet, the second permanent magnet, the first surface fastener, and the second surface fastener are the first permanent magnet 43M, the second permanent magnet 53M, the first surface fastener 46F, and the second surface fastener of the insulating cover 40. The configuration is the same as 56F, and the description is omitted.

  The insulating protective cover 80 is attached to the cover 34 with the first guide surface 84 and the first guide surface 84 of the first cover portion 81 in a state in which the insulating protective cover 80 to which the first permanent magnet and the second permanent magnet are attracted is closed. 2 The second guide surface 88 of the cover portion 85 is opposed to the cover 34 and moved to the cover 34 side to cover the first guide surface 84 of the first cover portion 81 and the second guide surface 88 of the second cover portion 85. 34 abut. When the insulating protective cover 80 is moved downward, the first guide surface 84 of the first cover portion 81, the second guide surface 88 of the second cover portion 85, the first contact surface 83, and the second along the cover 34. The contact surface 87 is slidably contacted, and the first cover portion 81 and the second cover portion 85 are gradually expanded around the hinge 89.

  When the insulating protective cover 80 is further moved downward, the first contact surfaces 83 and the second contact surfaces 87 pass along the cover 34. Thereby, the cover 34 is accommodated between the first accommodation surface 82 and the second accommodation surface 86. On the other hand, the first and second permanent magnets of the first contact surface 83 of the first cover portion 81 that has passed through the cover 34 and the second contact surface 87 of the second cover portion 85 contact each other by adsorption. The first cover part 81 and the second cover part 85 are temporarily fixed in a closed state.

  In this temporarily fixed state, the cover 34 penetrates through the accommodation space formed by the first accommodation surface 82 of the first cover portion 81 and the second accommodation surface 86 of the second cover portion 85, and the first cover portion 81. And the second cover portion 85.

  The second surface provided at the distal end portion of the band-like body in which the base end portion is coupled to the second cover portion 85 in a state where the first cover portion 81 and the second cover portion 85 are temporarily fixed by the adsorption of the permanent magnet. The fastener is joined to the first surface fastener provided in the first cover portion 81. Thereby, the 1st cover part 81 and the 2nd cover part 85 are firmly connected by the 1st surface fastener and the 2nd surface fastener which mutually join.

  Further, the first cover 81 and the second cover 85 are made to be the first permanent magnet by the cover 34 by a simple operation of peeling the first surface fastener and the second surface fastener from each other and lifting the insulating protective cover 80 upward. The insulating cover 80 can be removed from the cover 34 by being pushed out and spread out from the cover 34 against the adsorption of the second permanent magnet.

DESCRIPTION OF SYMBOLS 1 Armor 5 Pin insulator 8 Distribution line 10 Insulation protective cover 11, 21 1st cover part, 2nd cover part 12, 22 1st accommodation surface, 2nd accommodation surface 13, 23 1st contact surface, 2nd this clause Surfaces 14, 24 First guide surface, second guide surfaces 13M, 23M First permanent magnet, second permanent magnet 16F, 26F First surface fastener, second surface fastener 28 Housing space 29 Hinge 31 High-pressure tension insulator 32 Clamp 34 Cover 40 Insulation protective cover 41, 51 1st cover part, 2nd cover part 42, 52 1st receiving surface, 2nd receiving surface 43, 53 1st contact surface, 2nd contact surface 44, 54 1st guide surface , Second guide surfaces 43M, 53M first permanent magnet, second permanent magnet 46F, 56F first surface fastener, second fastener 58 housing space 59 hinge 60 insulation protection cover 61, 65 first cover portion, second cover portion 62 66 first Container surface, second accommodating surface 63, 67 first contact surface, second contact surface 64, 68 first guide surface, second guide surface 69 hinge 70 insulation protective cover 71, 75 first cover portion, second cover Portions 72, 76 First receiving surface, second receiving surfaces 73, 77 First contact surface, second contact surfaces 74, 78 First guide surface, second guide surface 80 Insulating protective cover 81, 85 First cover portion , Second cover portions 82, 86 first housing surface, second housing surface 83, 87 first contact surface, second contact surface 84, 88 first guide surface, second guide surface 100 )

Claims (6)

In the indirect hot wire construction method, the insulation protective cover for indirect hot wire work that covers the distribution line related equipment above the utility pole,
A first cover part and a second cover part having a width dimension corresponding to a covering range of the distribution line-related equipment and having a base end edge that is openably and closably connected via a hinge, and facing each other;
The first cover portion has a distal end edge that extends substantially parallel to the base end edge and serves as a rocking end, and has a concave first end that extends in the width direction along the base end edge on the inner peripheral surface. 1 accommodation surface, a first contact surface extending along an edge of the first accommodation surface, and a space between the edge and the tip edge along the edge of the first contact surface A first guide surface formed,
The second cover portion has a distal end edge that extends substantially parallel to the base end edge and serves as a rocking end, and has an inner peripheral surface facing the first accommodation surface of the first cover portion in the width direction. A second housing surface that forms a housing portion that houses the covering range of the distribution line-related equipment in cooperation with the first housing surface, and extends along an edge of the second housing surface. A second abutting surface that is opposed to the first abutting surface and is capable of abutting on the first abutting surface, and extends along an edge of the second abutting surface and extends to the edge A second guide surface that gradually moves away from the first guide surface as it moves from the tip edge side to
Gripping portion projecting in a rib shape to the outer surface of the second cover portion is integrally formed,
A first permanent magnet and a second cover part provided on the first cover part that are attracted and held together while the first contact part of the first cover part and the second contact part of the second cover part are in contact with each other. A second permanent magnet provided in
A first surface fastener and a second cover portion provided on the first cover portion that are joined and held in a state where the first contact portion of the first cover portion and the second contact portion of the second cover portion are in contact with each other. A second surface fastener provided in
Insulation protective cover for indirect hot-wire construction, characterized by comprising   2. The insulation protective cover for indirect hot-wire construction according to claim 1, wherein the distribution line-related equipment is an insulator provided on a brace and a distribution line fixedly held on the insulator.   The insulation protective cover for indirect hot-wire construction according to claim 1, wherein the distribution line-related device is a high-pressure tension insulator that is installed between a clamp that holds the distribution line and a brace.   2. The insulation protective cover for indirect hot-wire construction according to claim 1, wherein the distribution line-related device is a clamp that holds the delivery wire by holding the arm through a high-pressure tension insulator.   The insulation protective cover for indirect hot-wire construction according to claim 1, wherein the distribution line-related device is a cylindrical cover that covers the distribution line.   The distribution line-related device is a distribution line in a gap range between a clamp that holds the distribution line and is held by a brace via a high-voltage tension insulator and a cylindrical cover that covers the distribution line. The insulation protective cover for indirect hot wire construction according to claim 1.

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