JP2016119810A - Snake climb prevention device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a snake climb prevention device which is capable of preventing a snake from climbing an erected body in simple structure using inexpensive materials, reduces trouble for a worker to move upwards or downwards on the erected body or carry luggage up and down, and is not almost influenced by winds.SOLUTION: A snake climb prevention device 1 is configured to give an electric shock to a snake by utilizing a voltage that is induced by an overhead transmission line 3. For example, in an electromagnetic induction type, in the vicinity of the overhead transmission line of a steel tower 2, a vinyl insulation wire is wound in a loop shape around a main post material, and both ends of the vinyl insulation wire are pulled down to a lower part of the steel tower 2. One end of the pulled-down vinyl insulation wire is connected to a first electrode 11a that is provided in one end of an insulator 6a fixed to a lower part of the steel tower 2, and the other end of the pulled-down vinyl insulation wire is connected to a second electrode 12a that is provided in the other end of the insulator. Since a voltage is induced between the first electrode 11a and the second electrode 12a, a snake passing the insulator 6a receives an electric shock when the snake simultaneously touches the electrodes, and falls or stops climbing.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a snake climbing prevention device that prevents a snake from climbing on a standing body that supports an overhead power transmission line such as a power transmission tower.

  A snake climbs up the standing body aiming at eggs or chicks in the nest at the top of the standing body such as a steel tower, and when it touches the power transmission line or distribution line, a ground fault occurs and power equipment or There is a risk of enormous damage to the power supplier. For this reason, development of an effective device for preventing snake climbing has been demanded, and various snake climbing preventing devices have been studied in the past.

  For example, a sheet-like covering member having no irregularities on the surface is wound around a pillar of a steel tower, and an opening portion of a gap formed between the covering member and the pillar is closed with a lid member (Patent Document 1) ), A tower tower snake-proof device equipped with a plurality of rollers on the leg of the tower to prevent the snake climbing tower (Patent Document 2), the snake tower climbing prevention panel formed of a wire mesh to the tower A device that is attached to a climbing prevention device that prevents a person from climbing a tower and prevents the climbing of a snake (Patent Document 3), provided with a detecting means for detecting a small animal, etc., when a small animal is detected Installed to prevent an electric shock from falling (Patent Document 4), a climbing prevention tool equipped with a conical umbrella (Patent Document 5), and a medicine that avoids snakes, etc. The thing (patent document 6) etc. are proposed.

JP 2011-250755 A JP 2008-148634 A JP 2005-307434 A Japanese Patent Laid-Open No. 01-132329 Japanese Utility Model Publication No. 01-041282 No. 01-008140

  However, the configurations shown in Patent Documents 1 and 2 are worried that the function of sliding a snake due to deterioration over time is lost, and climbing is feared. In Patent Documents 3 and 5, the shape needs to be increased in order to cope with a large snake. When the size is increased, the structure is easily affected by wind, and the structure and material for maintaining strength are examined. There is a disadvantage of being forced and costly. In addition, there is a concern that inconvenience may be caused when the worker moves up and down or when lifting and lowering the load.

Furthermore, the configuration shown in Patent Document 4 requires an electric shock generating device and a power supply device that drives the device, which is expensive and has a complicated structure and requires regular maintenance.
Further, the configuration shown in Patent Document 5 requires periodic replenishment of repellent material, and the cost required for repellent material increases when dealing with a large number of steel towers. I am concerned that it will occur.

  The present invention has been made in view of such circumstances, and can prevent climbing of a snake to a standing structure with a simple structure using inexpensive materials. The main object is to provide a durable snake climbing prevention device that has little hindrance to raising and lowering and that is hardly affected by wind.

  In order to achieve the above object, a snake climbing prevention device according to the present invention is a snake climbing tower prevention device provided in an upright body that supports an overhead power transmission line, in the vicinity of the overhead power transmission line of the upright body. The vinyl insulated wire is wound around the upright body in a loop shape, and both ends of the vinyl insulated wire are pulled down to the lower portion of the upright body, and one of the pulled down vinyl insulated wires is taken up as the upright body. Electrically connected to the first electrode provided at one end of the insulator fixed to the lower part of the insulator, and the other of the pulled down vinyl insulated wire is provided at the other end of the insulator. It is characterized by being electrically connected to the second electrode (electromagnetic induction type).

  Therefore, a voltage is induced by the magnetic field generated by the overhead power transmission line in the portion of the vinyl insulated wire wound in the vicinity of the overhead power transmission line of the standing body, and this induced voltage is generated by the first electrode and the second electrode of the insulator. Will occur between. Therefore, if the snake climbs and touches the first electrode and the second electrode on the insulator at the same time, the snake will receive an electric shock at the moment of touching these electrodes, and the snake that has received the electric shock will fall. You will either give up or climb.

  Further, the snake climbing prevention device according to the present invention has a vinyl insulated wire wound around the standing body in a loop shape in the vicinity of the overhead power transmission line of the standing body, and is connected to the vinyl insulated wire. A vinyl insulated wire is pulled down to the lower part of the standing body, and the pulled down vinyl insulated wire is electrically connected to a first electrode provided at one end of the insulator fixed to the lower part of the standing body. In addition, a ground line may be electrically connected to a second electrode provided at the other end of the insulator (electrostatic induction type).

  According to such a configuration, the capacitance between the portion of the vinyl insulated wire wound around the upright body in a loop shape and the overhead power transmission line, between the portion wound in the loop shape and the ground A potential difference is generated between the first electrode and the second electrode due to the capacitance between them. Therefore, if the snake climbs and touches the first electrode and the second electrode at the same time, the snake will receive an electric shock at the moment of touching these electrodes, and the snake that has received the electric shock will fall or give up climbing Will do.

  Here, the pulled down vinyl insulated wire may be routed below the insulator, and a disconnect switch may be provided in the middle of the vinyl insulated wire below the insulator.

  By adopting such a configuration, the induced voltage generated between the first electrode and the second electrode can be eliminated by turning off the disconnect switch when the worker moves up and down the standing body. It is possible to eliminate the risk of electric shock.

  Further, in the configuration described above, when the standing body is a steel tower, an insulator is provided below each main pillar material of the steel tower, the first electrodes of the respective insulators are connected in series, and the first Two electrodes may be connected in series to generate an induced voltage between the first electrode and the second electrode of each main column member.

  In the case of the electromagnetic induction type, the first electrode of each insulator is connected in series to one of the pulled down vinyl insulated wires, and the first of each insulator is connected to the other of the pulled down vinyl insulated wires. Two electrodes may be connected in series. In addition, in the case of the electrostatic induction type, the first electrode of each insulator is connected in series to the pulled down vinyl insulated wire, and the second electrode of each insulator is connected in series to the ground wire. It is good to connect.

  In addition, even if the insulator mentioned above is comprised with an insulating sheet, it may be comprised by mounting | wearing the lower part of a standing body combining an insulation formation thing. According to the former configuration, it is not necessary to prepare a special member, and it is possible to construct the apparatus with a familiar one. Moreover, according to the latter structure, since an insulator is comprised by combining and mounting | wearing with the lower part of a standing body, the attachment operation | work of an insulator becomes easy.

As described above, according to the snake climbing preventing apparatus according to the present invention, a vinyl-insulated electric wire is wound in a loop shape near the overhead transmission line of the standing body to form a voltage induction point, and this voltage induction point is formed. Is electrically connected to an insulator electrode provided at the lower part of the standing body to generate an induced voltage between the first electrode and the second electrode, and an electric shock is applied to a snake passing through the first electrode. Therefore, it is possible to prevent the snake from climbing to the standing structure with a simple structure using inexpensive materials.
In addition, since the structure is such that the first electrode and the second electrode are only provided on the insulator provided at the lower part of the standing body, there is almost no hindrance to the raising and lowering of the worker and the raising and lowering of the luggage. In addition, since the apparatus itself does not increase in size, it is possible to provide a durable snake climbing prevention apparatus that is hardly affected by wind.

FIG. 1 is a view showing a state in which a snake climbing prevention device according to the present invention is attached to a steel tower, and is a view showing an example of an electromagnetic induction type. FIG. 2 (a) is an enlarged view showing the vicinity of a steel tower to which an insulator of the snake climbing prevention device according to the present invention is attached, and FIG. 2 (b) shows an attached state of the insulator and electrodes attached to the steel tower. FIG. FIG. 3 is a diagram for explaining a method of adjusting the induced voltage of the snake climbing prevention device, and is a diagram showing a state in which the number of turns of the vinyl insulated wire wound around the steel tower is varied. FIG. 4 is a diagram for explaining a method of adjusting the induced voltage of the snake climbing prevention device, and is a diagram showing a state in which the positions of vinyl insulated wires wound around the steel tower are changed. FIG. 5 is a diagram showing another configuration example of the insulator, (a) is a plan view showing a state in which the insulator is attached to an angle steel material of a steel tower, and (b) is a state in which (a) is disassembled. The top view to show, (c) is a side view which shows the state which attached the insulator to the angle steel material of a steel tower, (d) is a side view which shows the state which decomposed | disassembled (c). FIG. 6 is a view showing a state in which the snake climbing prevention device according to the present invention is attached to a steel tower, and is a view showing an example of an electrostatic induction type.

  Hereinafter, the snake climbing prevention device of the present invention will be described with reference to the accompanying drawings.

  FIG. 1 shows an example in which an electromagnetic induction type snake climbing prevention device 1 is attached to a steel tower 2. The snake climbing prevention device 1 is fixed by winding a vinyl insulated wire (IV wire) 4 in a loop so as to turn around the tower in the vicinity of the overhead power transmission line 3 at the top of the tower 2. A voltage-inducing portion 5 is provided, and both ends of the vinyl insulated wire 4 are pulled down from the voltage-inducing portion 5 to the lower part of the tower through the inside of the main pillar 2a, and the four main pillars (first main pillar 2a, The insulator attached to the lower part of the second main pillar 2b, the third main pillar 2c, and the fourth main pillar 2d) (the insulator attached to the first main pillar 2a is the first The insulator attached to the insulator 6a and the second main pillar 2b is the second insulator 6b, and the insulator attached to the third main pillar 2c is the third insulator 6c and the fourth main The insulator attached to the column 2d is electrically connected to the electrode of the fourth insulator 6d).

  The respective insulators 6a, 6b, 6c, 6d have the same configuration, and the first insulator 6a shown in FIG. 2A will be described. The insulator 6a is connected to the diagonal members 2e, 2f, The snake is provided at a portion of the main pillar 2a through which the snake always passes when climbing the steel tower 2. In this example, the insulating sheet 7 is used as the insulators 6a, 6b, 6c, 6d, and the insulating sheet 7 is wound around the main pillar 2a. As shown in FIG. 2 (b), when the main pillar 2a is an angle steel material, the insulating sheet 7 constituting the insulator 6a has an insulating sheet 7 as shown in FIG. It is attached to involve.

  And the part (core wire 4a) which peeled off the coating | cover of the vinyl insulated wire 4 from this insulator 6a is wound, Furthermore, it winds strongly with the stainless steel band 8 from there, and the insulating sheet 7 with the vinyl insulated wire 4 and the main pillar While being fixed to the material 2a, the stainless steel band 8 is used to form an electrode to which the vinyl insulated wire 4 is electrically connected.

  In this example, a first electrode (provided on the first insulator 6a) that is electrically connected to one of the vinyl insulated wires 4 drawn down to the upper end of each insulator 6a, 6b, 6c, 6d. The first electrode 11a, the first electrode 11b provided on the second insulator 6b, the first electrode 11b provided on the third insulator 6c, the first electrode 11c provided on the fourth insulator 6d The second electrode (first electrode) is electrically connected to the other end of the vinyl insulated wire 4 drawn down at the lower end of each insulator 6a, 6b, 6c, 6d. The second electrode provided on the insulator 6a is 12a, the second electrode provided on the second insulator 6b is 12b, the second electrode provided on the third insulator 6c is 12c, and the fourth insulation is provided. The second electrode provided on the body 6d is 12d). The first electrodes 11a, 11b, 11c, 11d of the respective insulators 6a, 6b, 6c, 6d are connected in series to one of the pulled down vinyl insulated wires 4, and the respective insulators 6a, 6a, 6d, The second electrodes 12a, 12b, 12c, 12d of 6b, 6c, 6d are connected in series to the other of the pulled down vinyl insulated wires 4.

  That is, one of the drawn vinyl insulated wires 4 is connected to the first electrode 11a of the first insulator 6a → the first electrode 11b of the second insulator 6b → the first of the third insulator 6c. The other of the drawn vinyl insulated wires is electrically connected in the order of the electrode 11c → the first electrode 11d of the fourth insulator 6d, and the other one of the drawn-down vinyl insulated wires is a first main column 2a provided on the first main pillar 2a. The disconnect switch 9a → the second disconnect switch 9b provided on the second main pillar 2b → the third disconnect switch 9c provided on the third main pillar 2c → the fourth main pillar 2d The fourth disconnect switch 9d → the second electrode 12d of the fourth insulator 6d → the second electrode 12c of the third insulator 6c → the second electrode 12b of the second insulator 6b → the first The second electrodes 12a of the insulator 6a are electrically connected in this order.

  Here, each disconnect switch 9a, 9b, 9c, 9d is connected to the insulator 6a. 6b. 6c. It is attached to the main pillars 2a, 2b, 2c, 2d below 6d, and the vinyl insulated wire 4 is once drawn below the insulator and provided there. A fuse may be connected in series with the disconnect switches 9a, 9b, 9c and 9d.

  In the above configuration, when the disconnect switches 9a, 9b, 9c, 9d are closed (ON), the magnetic field generated by the overhead power transmission line 3 is a vinyl insulated wire 4 (voltage induced) By interlinking the points 5), electromagnetic induction is generated in the voltage induction point 5, and the first electrodes 11a, 11b, 11c, 11d on the insulators electrically connected to the voltage induction point 5 and the second electrodes An induced voltage is generated between the electrodes 12a, 12b, 12c, and 12d. Therefore, when the snake moves on the insulator in an attempt to climb the steel tower 2 and contacts the first electrodes 11a, 11b, 11c, and 11d and the second electrodes 12a, 12b, 12c, and 12d at the same time, it occurs between the electrodes. Due to the induced voltage, the snake falls or gives up climbing.

  Here, the induced voltage generated between the first electrodes 11a, 11b, 11c, and 11d and the second electrodes 12a, 12b, 12c, and 12d is several in the case of a general electric fence for bird and animal damage. Although it is 1000 V, since this apparatus is scheduled to prevent the snake from climbing, it assumes several hundred V.

  In addition, when an operator moves up and down to the steel tower, the induced voltage is eliminated on all the insulators by opening (OFF) any of the disconnect switches 9a, 9b, 9c, 9d at the four locations. The worker can safely lift and lower the tower 2 without electric shock.

  Therefore, according to the above-described configuration, the snake climbing prevention device 1 can be constructed using the four materials of the vinyl insulated wire 4, the insulating sheet 7, the stainless steel band 8, and the disconnect switch. It is possible to prevent climbing to the steel tower.

  In addition, the insulators 6a, 6b, 6c and 6d provided at the lower part of the tower 2 have a structure in which only the first electrodes 11a, 11b, 11c and 11d and the second electrodes 12a, 12b, 12c and 12d are provided. Therefore, there is almost no hindrance to raising and lowering the worker to and from the tower 2 and lifting and lowering the load, and the device itself does not increase in size, so it is a durable snake climbing prevention device that is hardly affected by the wind. 1 can be provided.

  In the above example, the disconnect switches 9a, 9b, 9c, and 9d are provided in all the main pillar members 2a, 2b, 2c, and 2d (four locations) in consideration of safety. If the location is a steel tower, the disconnect switch may be provided at only one location.

  If the induced voltage is insufficient, as shown in FIG. 3, the number of turns of the vinyl insulated wire 4 at the voltage-inducing location 5 may be increased. If the induced voltage is excessive, As shown in FIG. 4, the voltage induction point 5 may be lowered downwardly away from the overhead power transmission line 3, and the desired number of turns can be obtained by adjusting the number of turns of the vinyl insulated wire 4 and the separation distance from the overhead power transmission line 3. An induced voltage can be obtained.

  Moreover, although the example which used the insulating sheet 7 as the insulator 6a, 6b, 6c, 6d was shown in the above-mentioned example, as shown in FIG. 5, you may comprise combining an insulating formation. The insulators 6a, 6b, 6c, and 6d shown here include an inner insulating formation 15 that contacts the inner two surfaces of the main pillars 2a, 2b, 2c, and 2d made of angle steel, and the main pillars 2a, 2b, 2c and 2d are combined with the outer insulation forming member 16 in contact with the two outer surfaces so as to sandwich the main pillar material (angle steel material), and formed into a cylindrical shape as a whole. , 15b, 16b are formed, and conductor bands 17a, 17b having a U-shaped cross section are turned around the outer periphery of the flange portions 15a, 16a, 15b, 16b, and both ends thereof are tightened together with the vinyl insulated wire 4 with screws to insulate them. The bodies 6a, 6b, 6c, 6d are fixed to the main pillars 2a, 2b, 2c, 2d, and the upper conductor band 17a is used as the first electrodes 11a, 11b, 11c, 11d, and the lower conductor bars The de 17b second electrodes 12a, are 12b, 12c, and 12d. Here, the flange portion to which the first electrode (conductor band 17a) is attached has a larger diameter than the flange portion to which the second electrode (conductor band 17b) is attached.

  In addition, a plurality of through holes 18 through which the vinyl insulated wire 4 is inserted are formed in the inner insulation formed product 15, and the vinyl insulated wire 4 does not have to be routed outside the insulators 6a, 6b, 6c, 6d. It has come to be finished.

  Furthermore, the upper portions of the insulators 6a, 6b, 6c, 6d (the upper portions of the inner insulating formation 15 and the outer insulating formation 16) are formed in a shape that is inclined downward toward the outer side, so that rainwater and the like do not collect. ing.

  Therefore, since the insulators 6a, 6b, 6c, and 6d are configured by combining such insulating formations, the insulators 6a, 6b, 6c, and 6d can be easily attached to the steel tower 2, and the insulation can be performed. The attachment state of the bodies 6a, 6b, 6c, 6d will not be uneven. Further, according to the above-described configuration, the electrodes are attached to the flange portions 15a, 16a, 15b, and 16b provided above and below the insulators 6a, 6b, 6c, and 6d, and the diameters of the upper flange portions 15a and 16a are reduced. By making it larger than the diameter of the flange portions 15b, 16b on the side, it is possible to increase the separation between the electrodes or between the electrode and the main pillar material, and to take measures against insulation deterioration such as salt damage.

  The electromagnetic induction type snake climbing prevention device 1 described above has a configuration in which the induced voltage generated between the electrodes is proportional to the parallel length of the current of the overhead power transmission line 3, and the stable induced voltage at a location where the current fluctuates frequently. It is also assumed that cannot be obtained. For this reason, the electrostatic induction type snake climbing prevention device 1 as shown in FIG.

  The snake climbing prevention device 1 is fixed by winding a vinyl insulated wire (IV line) 4 in a loop shape around the tower 2 around the overhead transmission line 3 attached to the upper part of the tower 2. The insulated vinyl wire 40 connected to the wound vinyl insulated wire 4 is pulled down from the induced voltage site 5 to the lower part of the tower through the inside of the main pillar 2a, and the four main pillar members of the tower 2 are drawn. The insulators 6a, 6b, 6c, and 6d attached to the lower portions of 2a, 2b, 2c, and 2d are connected in series to the first electrodes 11a, 11b, 11c, and 11d.

  In this example, the pulled down vinyl insulated wire 40 is connected to the first disconnect switch 9a provided on the first main pillar 2a → the second disconnect switch 9b provided on the second main pillar 2b. → third disconnect switch 9c provided on the third main pillar 2c → fourth disconnect switch 9d provided on the fourth main pillar 2d → first electrode 11d of the fourth insulator 6d → The first electrode 11c of the third insulator 6c → the first electrode 11b of the second insulator 6b → the first electrode 11a of the first insulator 6a is electrically connected in this order.

The ground wire 41 is connected in series to the second electrodes 12a, 12b, 12c, 12d of the insulators 6a, 6b, 6c, 6d. In this example, the ground line 41 is connected to the second electrode 12a of the first insulator 6a → the second electrode 12b of the second insulator 6b → the second electrode 12c of the third insulator 6c → the fourth electrode. The second electrodes 12d of the insulator 6d are electrically connected in this order.
Other configurations are the same as those in the above configuration example.

  In such a configuration, when the disconnect switches 9a, 9b, 9c, and 9d are closed (ON), the voltage induction point 5 and the overhead power transmission line 3 in which the vinyl insulated wire 4 is wound in a loop shape. Between the first electrodes 11a, 11b, 11c and 11d and the second electrodes 12a, 12b, 12c and 12d due to the capacitance between the first electrode 11a, 11b, 11c and 11d. Therefore, a potential difference is generated. For this reason, when the snake moves on the insulator in an attempt to climb the steel tower and simultaneously contacts the first electrodes 11a, 11b, 11c, and 11d and the second electrodes 12a, 12b, 12c, and 12d, they are generated between the electrodes. Due to the induced voltage, the snake falls or gives up climbing.

  According to the electrostatic induction type snake climbing preventing apparatus 1 as described above, the induced voltage is proportional to the voltage of the overhead power transmission line 3 or the mutual inductance between the overhead power transmission line 3 and the vinyl insulated wire 4, and there are many current fluctuations. This is effective for obtaining a stable induced voltage even at a location.

In addition, although the example which installed the snake climbing prevention apparatus 1 in the steel tower 2 was shown in the above structure, the same structure can be employ | adopted if it is the standing body which supports the overhead power transmission line 3. FIG. For example, if the insulating sheet 7 can be wound around a hollow steel pipe or a concrete column, the same configuration can be employed.
Moreover, in the above-mentioned example, although the example which provided the voltage generation location which provided the electrode in the main pillar material of the tower 2 one by one was shown, the voltage generation location provided in the main pillar material may be two or more places, You may make it install in other parts, such as a diagonal.

DESCRIPTION OF SYMBOLS 1 Snake climbing prevention apparatus 2 Steel tower 2a, 2b, 2c, 2d Main pillar material 3 Overhead power transmission line 4,40 Vinyl insulated wire 6a, 6b, 6c, 6d Insulator 9a, 9b, 9c, 9d Disconnect switch 11a, 11b, 11c , 11d First electrodes 12a, 12b, 12c, 12d Second electrode 15 Inner insulation formation 16 Outer insulation formation 41 Grounding wire

Claims (6)

A snake tower prevention device provided on a standing body that supports an overhead power transmission line,
In the vicinity of the overhead transmission line of the upright body, a vinyl insulated wire was wound around the upright body in a loop shape, and both ends of the vinyl insulated wire were pulled down to the lower part of the upright body and pulled down. One of the vinyl insulated wires is electrically connected to a first electrode provided at one end of the insulator fixed to the lower part of the standing body, and the other of the drawn vinyl insulated wires is Is electrically connected to a second electrode provided at the other end of the insulator. A snake tower prevention device provided on a standing body that supports an overhead power transmission line,
In the vicinity of the overhead transmission line of the standing body, a vinyl insulated wire is wound around the standing body in a loop shape, and the vinyl insulated wire connected to the vinyl insulated wire is pulled down to the lower part of the standing body. The pulled down vinyl insulated wire is electrically connected to a first electrode provided at one end of the insulator fixed to the lower portion of the standing body, and a ground wire is connected to the insulator. A snake tower preventing device, wherein the device is electrically connected to a second electrode provided at the other end.   The snake tower prevention according to claim 1 or 2, wherein the pulled down vinyl insulated wire is routed downward from the insulator and a disconnect switch is provided in the middle of the portion below the insulator. apparatus.   The standing body is a steel tower, the insulator is provided below each main pillar material of the steel tower, the first electrode of each insulator is connected in series, and the second The snake tower prevention apparatus according to any one of claims 1 to 3, wherein the electrodes are connected in series.   The snake tower prevention apparatus according to any one of claims 1 to 4, wherein the insulator is made of an insulating sheet.   5. The snake tower preventing apparatus according to claim 1, wherein the insulator is configured by combining an insulating formation and attached to a lower portion of the standing body.

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