KR20090019946A

KR20090019946A - Falling of a thunderbolt control apparatus of power transmission wire structure

Info

Publication number: KR20090019946A
Application number: KR1020070084259A
Authority: KR
Inventors: 김동철
Original assignee: 김동철
Priority date: 2007-08-22
Filing date: 2007-08-22
Publication date: 2009-02-26

Abstract

The disclosed contents are installed to insulate the lightning (electric energy of lightning current) from the lightning rod of the transmission line structure from the transmission line structure when lightning strikes on a pole or transmission line tower (hereinafter, referred to as a "transmission line structure") under rainy weather conditions. By discharging to the ground through the power cable to be discharged, to protect the pedestrians walking around the transmission line structure from lightning accidents, and to prevent damage to the transformer, insulators or wires due to reverse flashover,

Lightning apparatus for a transmission line structure according to an embodiment of the present invention, the power pole connected to the ground line embedded in the ground and the electric pole extending to the upper portion,

Lightning rod to guide lightning strikes to the power cable,

A housing of an insulator including an inner casing having a lightning rod mounted thereon, the inner casing through which a coupling hole accommodating a conductor electrically connected to the lightning rod is received, and an outer casing integrally formed to be spaced outward from the inner casing;

The bottom is fixed to the top of the pole, and the bracket is fixed to the bottom of the inner casing in a sealed state to prevent rain water,

And a connector for connecting the lower end of the conductor and the upper end of the power cable to the inside of the bracket.

Description

Lightning of a thunderbolt control apparatus of power transmission wire structure}

In the present invention, when a lightning strikes on a pole or transmission line tower (hereinafter, referred to as a "transmission line structure") on a rainy day, lightning strikes the outer surface of the pole or a transmission line tower where rain water is flowing or flows (electric energy of lightning current) The present invention relates to a lightning strike device for a transmission line structure that protects a pedestrian from lightning accidents by preventing direct flow.

More specifically, when lightning strikes a transmission line structure under rainy weather conditions, the lightning strikes from the lightning rod of the transmission line structure are induced and discharged into the ground through a power cable installed to be insulated from the transmission line structure. The present invention relates to a lightning protection device for a transmission line structure that protects a pedestrian walking from lightning accidents and prevents breakage of a transformer, insulator or electric wire due to reverse flashover.

In general, lightning strikes are a phenomenon in which huge electric energy generated by charging such as static electricity is discharged to the ground by active airflow.

In order to prevent various damages caused by lightning strikes, various types of transmission line structures can be used to discharge currents such as lightning strikes into the ground at high cost to electric poles, transmission towers, broadcasting transmission and reception towers, power generation or transformers, and military bases (radar bases). Lightning rods are installed.

As shown in FIG. 1, the lightning treatment apparatus for a transmission line structure (for example, a pole) according to the prior art includes a processing line support support 2 made of metal in order to minimize damage to lightning at the upper end of the pole 1. (Which serves as a lightning rod) is installed, and an overhead earth wire 3 for ground is installed on the upper end of the processing ground support 2.

At this time, the processing branch line 3 is installed to maintain a height of 1.5M-1.8M from the stub 4 fixed to the pole 1, while maintaining a constant height than the power line 5 fixed to the stub 4 power line It is installed parallel to (5).

Therefore, when lightning strikes a transmission line structure (telegraph), the thunder current is transmitted through the path of the processing ground wire-complete-neutral wire-ground terminal (the earthing terminal which is grounded to earth at a certain number of transmission line towers or poles). It flows to the earth and is destroyed.

Generally, lightning strikes are accompanied by thunderstorms that occur in rainy weather conditions. As a result, when the lightning (lightning current) due to the lightning strikes the ground through the pole 1, the lightning flows directly to the outer surface of the pole 1 in which rainwater flows or flows down.

Therefore, if a pedestrian passes around Jeonju (1) at the moment of a lightning strike, or if a pedestrian is waiting to avoid raining around Jeonju (1), there is a tree near Jeonju. Has the problem of wearing.

As shown in FIG. 2, the lightning treatment apparatus of the transmission line structure (for example, a transmission line tower) according to the prior art, when the lightning 9 flows into the transmission line tower 6, the tracks (A, B) The processing branch lines 7 and 8 are installed on the transmission line pylon 6 so that the lightning strike 9 disappears through the ground line 11 embedded in the ground 10 without affecting.

When a lightning strike 9 occurs in the pylon 6 under rainy weather conditions, the lightning strike 9 is discharged (dissipated) through the transmission line pylon 6 and the ground line 11 of the earth 10, and at the same time rainwater Lightning (9) also flows directly into the steel structure of the transmission line tower (6) that is burying or flowing down. For this reason, a pedestrian or worker who passes around the transmission line pylon 6 at the moment when a lightning strike 9 occurs has a problem of serious injury due to a lightning strike.

According to an embodiment of the present invention, when lightning strikes a transmission line structure under rainy weather conditions, the lightning strikes from the lightning rod of the transmission line structure by inducing discharge into the ground through a power cable installed to be insulated from the transmission line structure. In addition, it is related to a lightning strike device of a transmission line structure which protects pedestrians around the transmission line structure from lightning accidents and prevents the explosion, insulator or breakage of the transformer due to reverse flashover.

An embodiment of the present invention relates to a lightning line processing apparatus of a transmission line structure that can be used semi-permanently by reducing after-sales cost because it is not necessary to break down and repair the corresponding parts of the lightning treatment system installed in the transmission line structure.

Lightning rod to guide lightning strikes to the power cable,

An apparatus for treating lightning of a transmission line structure according to an embodiment of the present invention includes a transmission line pylon having a power cable connected to a ground line embedded in a ground extending to an upper portion thereof;

Lightning rods to induce lightning strikes in the power transmission line to the power cable,

The through hole is formed in the center so as to pass through the conductor connected to the power cable so as to be connected to the power transmission line, and includes a holder to which the lower end of the inner casing is fixed.

According to a preferred embodiment, at least one or more formed on the outer surface of the inner casing described above, the rain of the insulator to prevent the rain water flowing into the housing to enter the connecting portion of the inner casing and the bracket on the outer surface of the inner casing It may further include.

The shade may be formed integrally downwardly inclined to the outer surface of the inner casing.

The power cable mentioned above,

The core conductor, which is the main path for transmitting electric power, the insulator surrounding the core conductor, the sheath conductor surrounding the insulator to facilitate grounding, and the anticorrosive layer surrounding the sheath conductor to block the contact with the conductor. It may include.

As described above, the lightning treatment apparatus of the transmission line structure according to the embodiment of the present invention has the following advantages.

When lightning strikes a transmission line structure under rainy weather conditions, lightning strikes the lightning strikes from the transmission line structure into the ground by a power cable installed to insulate the transmission line structure and extinguishes the ground, thus protecting pedestrians around the transmission line structure from lightning accidents. In addition, it is possible to prevent the transformer from explosion or insulator or wire breakage due to reverse flashover.

In addition, since the failure and repair of the corresponding parts of the lightning treatment device installed in the transmission line structure is unnecessary, it is possible to reduce the after-care costs and use semi-permanently.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings, which are intended to describe in detail enough to enable those skilled in the art to easily practice the invention, and therefore It does not mean that the technical spirit and scope of the present invention is limited.

As shown in Figures 2 and 3, the lightning strike processing apparatus of the transmission line structure according to an embodiment of the present invention, the electric pole that the power cable 51 connected to the ground line 50 is buried in the ground extending to the upper portion formed (52) (telephone),

Lightning rod 54 which guides the lightning strike 53 (lightning current) flowing into the electric pole 52 to the power cable 51,

A coupling hole 56 is mounted in the upper portion, and a coupling hole 56 accommodating a conductor 55 (for example, a power cable may be used) which is connected to the lightning rod 54 so as to be conductively connected to the core at the inner center thereof. An insulator comprising an inner casing 57 formed therethrough and an outer casing 58 integrally formed to be spaced apart from the inner casing 57 (for example, a high-strength polymer insulator or the like may be used). Housing 59,

Cylindrical bracket 60 fixed to the upper end of the electric pole 52 by the clamp 63, the upper end is sealed by the clamp 63 to the lower end of the inner casing 57 so that rain water does not flow,

A connector 61 of a conductor (for example, a connection terminal connected to the power cable 51) for electrically connecting the lower end of the conductor 55 and the upper end of the power cable 51 inside the bracket 60. 51a) and a connection terminal 55a connected to the conductor 55 can be used by bolt fixing).

At this time, at least one or more is formed on the outer surface of the inner casing 57, rainwater (or snow, hail) flowing into the housing 59 rides on the outer surface of the inner casing 57, the inner casing 57 And it may further include a shade 62 of the insulator to prevent flowing into the connection portion of the bracket (60).

The aforementioned shade 62 may be integrally formed downward on the outer surface of the inner casing 57.

The power cable 51 described above has a core conductor (a), which is a main path for transmitting electric power, an insulator (b) surrounding and supporting the core conductor (a), and wrapped and supported by the insulator (b) to facilitate grounding. It may include a sheath conductor (c), and the anticorrosive layer (d) surrounding the sheath conductor (c) to block the contact with the conductor.

In the drawing, reference numeral 64 denotes a processing ground wire for ground, and 65 denotes a coupling groove 59a formed in the upper portion of the housing 59, and a fixing plate 54a formed at the lower end of the lightning rod 54 is fastened by a bolt or the like. It is a fixture.

Hereinafter, with reference to the accompanying drawings an example of the use of the lightning treatment apparatus for a transmission line structure according to an embodiment of the present invention will be described in detail.

As shown in FIG. 4, when a lightning strike 53 (refering to a lightning current) accompanied by thunder lightning strikes the lightning rod 54 installed above the electric pole 52 described above, the lightning rod 54. As the ground cable 50 is discharged (dissipated) through the ground cable 50 through the power cable 51 connected to the ground, the pedestrian around the pole 52 is protected from lightning accidents, and the transformer, insulator, Damage to electric wires and the like can be prevented.

That is, when the lightning strike 53 enters the lightning rod 54 and is discharged through the ground wire 50 in the ground through the power cable 51, rainwater is on the surface of the pole 52, or rainwater flows down. Lightning strike 53 directly on the surface of the electric pole 52 can be blocked.

In detail, the lightning strike 53 introduced to the lightning rod 54 is fixed to the fixing plate 54a formed at the lower end of the lightning rod 54 and the fixing plate 54a fastened to the fixing plate 54a to be mounted on the upper portion of the housing 59. Passed through (65) is transmitted to the conductor (55).

The lightning strike 53 transmitted to the above-described conductor 55 passes through the connection terminal 55a connected to the lower end of the conductor 55 so as to be conductive, and the connection terminal 51a of the power cable 51 to supply power. Delivered to the cable 51. The lightning strike 53 transmitted to the power cable 51 is discharged in the ground through the ground line 50 embedded in the ground.

The lightning strike 53 generated on the lightning rod 54 by the housing 59 formed of an insulator provided between the lightning rod 54 and the pole 52 is formed on the surface of the pole 52 in which rain water is stained or flowed down. You can block the flow directly.

An inner casing 57 of the housing 59 in which the conductor 55 is embedded is formed of an insulator and is spaced apart from the electric pole 52 to be fixed to the bracket 60. Accordingly, even when the bracket 60 fixing the housing 59 to the upper end of the pole 52 is formed of a metal material of the conductor, the conductor 55 embedded in the inner casing 57 is directly connected to the pole 52. Contact is blocked.

On the other hand, when rainwater flows into the housing 59 (rain and rain falls), that is, rainwater flowing between the outer casing 58 and the inner casing 57 is the conductor 55 and the power cable 51 ) Can be prevented from falling on the joint.

In other words, the rainwater flowing into the housing 59 is collected at the edge by an annular lampshade 62 formed to be inclined downward on the outer circumference of the inner casing 57 and then falls to the bottom surface. As a result, it is possible to prevent falling into the connection portion between the connection terminal 55a of the conductor 55 disposed in the bracket 60 and the connection terminal 51a of the power cable 51.

As described above, the conductor 55 connected to the lightning rod 54 passes through the coupling hole 56 formed through the inside of the housing 59 of the insulator fixed to be spaced apart from the pole 52. 51). This causes the lightning strikes striking the lightning rod 54 on the rainy day to the ground through the power cable 51 connected to the lightning rod 54 and discharged by the ground wire 50. Alternatively, the lightning strike 53 can be prevented from directly flowing on the surface of the electric pole 52 flowing down.

In addition, it is possible to prevent the transformer (not shown) due to the reverse flashover caused by the lightning strike 53, the insulator is broken, or the electric wire is disconnected to generate an electrostatic accident.

As shown in Figure 5, the lightning line processing apparatus of the transmission line structure according to another embodiment of the present invention, the transmission line pylon 66 in which the power cable 51 connected to the ground line 50 embedded in the ground extends to the upper portion )and,

Lightning rod 54 for guiding the lightning strike 53 flowing into the power transmission line 66 to the power cable 51,

A coupling hole 56 is mounted in the upper portion, and a coupling hole 56 for receiving a conductor 55 (for example, a metal rod may be used) which is connected to the lightning rod 54 so as to be conductively penetrates through the core in the inner center thereof. Housing 59 of an insulator (eg, a high-strength polymer insulator or the like may be used) that includes an inner casing 57 that is formed and an outer casing 58 that is integrally formed to be spaced apart from the outer side of the inner casing 57. and,

A through hole 67a is formed at the center so that the conductor 55 connected to the power cable 51 to be conductively connected to the power cable 51 is mounted to the transmission line tower 66 by bolts, and the lower end of the inner casing 57 is bent. And a holder 67 which is fixed by pressing or the like.

At this time, the transmission line pylon 66 to which the above-described lightning rod 54 is fixed, the conductor 55 connected to the lightning rod 54 so as to be conductively connected, and the lower end of the inner casing 57 of the housing 59, The configuration except for the holder 67 directly fixed to the 66 is substantially the same as that according to an embodiment of the present invention, so detailed description thereof will be omitted, and overlapping reference numerals will be denoted the same.

As the connection portion (not shown) of the above-described conductor 55 and the power cable 51 is exposed to the outside, it is sealed by a cap (not shown) to prevent rain water or the like from being shorted. Can be wrapped and protected.

Hereinafter, with reference to the accompanying drawings an example of the use of the lightning treatment apparatus for a transmission line structure according to another embodiment of the present invention.

As shown in Fig. 5 and Fig. 6, when a lightning strike 53 (refering to a lightning current) accompanied by a thunderstorm on a rainy day hits the lightning rod 54 installed above the transmission line pylon 66 described above, By conducting discharge (dissipation) into the ground through the conductor 55 and the power cable 51 connected to the lightning rod 54, the pedestrian around the transmission line 66 can be protected from a lightning accident. Alternatively, breakage or disconnection of the insulator or wire of the transmission line pylon 66 may be prevented due to reverse flashover due to a lightning strike.

That is, when the lightning strike 53 flows into the lightning rod 54 and is discharged through the ground wire 50 in the ground through the conductor 55 and the power cable 51, rainwater is on the surface of the transmission line pylon 66, Alternatively, the lightning strike 53 may be prevented from directly flowing on the surface of the transmission line tower 66 in a rain water flowing state.

In detail, the lightning strike 53 generated by the lightning rod 54 is transmitted to the ground line 50 in the ground through the conductor 55 and the power cable 51 connected to the lightning rod 54 and discharged. do. At this time, the lightning strike 53 generated in the lightning rod 54 by the housing 59 formed of the insulator installed between the lightning rod 54 and the transmission line tower 66 is on the surface of the transmission line tower 66 in which rain water is buried. You can block the flow directly.

An inner casing 57 of the housing 59 in which the conductor 55 is embedded is formed of an insulator and is spaced apart from the transmission line tower 66 to be fixed to the holder 67. This prevents the lightning 53 flowing into the lightning rod 54 from being directly transmitted to the transmission line tower 66 by the inner casing 57 of the housing 59 of the insulator.

On the other hand, when rainwater flows into the housing 59 (when the rain falls and rains), the bottom surface after collecting the edge by the annular shade (62) formed to be inclined downward on the outer periphery of the inner casing (57) Falls towards

On the other hand, when the lightning strike 53 flows through the power cable 51 to the ground, the power cable 51 is formed of the core conductor (a), the sheath conductor (c), the insulator (b) and the anticorrosive layer (d). Accordingly, capacitance is generated between the shim conductor a and the sheath conductor c. In addition, since the power cable 51 has a lower resistance component than the transmission line pylon 66, the speed of the lightning current flowing through the power cable 51 is reduced and the size is also reduced. Therefore, it is possible to minimize the occurrence of reverse flashover due to the lightning strike 53.

As described above, the lightning strike 53 that strikes the lightning rod 54 on a rainy day is guided to the ground through the conductor 55 and the power cable 51 connected to the lightning rod 54 and grounded by the ground wire 50. By discharging, it is possible to prevent the lightning strike 53 directly flowing on the surface of the transmission line tower 66 in the state of rain water or rain water flowing. This may protect pedestrians or workers around the transmission line pylon 66 from lightning strikes.

1 is a schematic diagram of an apparatus for treating lightning of a transmission line structure (electric pole) according to the prior art,

2 is a schematic diagram of a lightning treatment apparatus for a transmission line structure (transmission tower) according to the prior art;

3 is an exploded perspective view of an apparatus for treating lightning of a transmission line structure according to an embodiment of the present invention;

Figure 4 is a state of use of the lightning treatment device of the transmission line structure according to an embodiment of the present invention,

5 is an exploded perspective view of an apparatus for treating lightning of a transmission line structure according to another embodiment of the present invention;

6 is a state of use of the lightning treatment device of the transmission line structure according to another embodiment of the present invention,

7 is a cross-sectional view of a power cable used in the lightning treatment device according to the embodiment of the present invention.

* Explanation of symbols used in the main part of the drawing

50; Ground wire

51; Power cable

52; Jeonju

53; thunderstroke

54; lightning rod

55; Conductor

56; Joiner

57; Inner casing

58; Outer casing

59; housing

60; Bracket

61; connector

62; lampshade

66; Transmission Line

67; holder

Claims

Jeonju, the power cable connected to the ground wire buried in the ground extending to the upper portion;

A lightning rod guides the lightning strike into the power cable;

A housing of an insulator including an inner casing having the lightning rod mounted thereon and having an inner casing through which a coupling hole accommodating a conductor connected to the lightning rod is connected, and an outer casing integrally formed to be spaced outwardly from the inner casing;

A bracket is fixed to the upper end of the pole, the upper end is fixed to the lower end of the inner casing in a sealed state so that rain water does not flow; And

And a connector for electrically connecting a lower end of the conductor and an upper end of the power cable in the bracket.

A transmission line iron tower in which a power cable connected to the ground line embedded in the ground extends to an upper portion thereof;

A lightning rod guides the lightning cable to the power cable;

A housing of an insulator including an inner casing having the lightning rod mounted thereon and having an inner casing through which a coupling hole accommodating a conductor connected to the lightning rod is connected, and an outer casing integrally formed to be spaced outwardly from the inner casing; And

The through hole is formed in the center so as to pass through the conductor connected to the power cable to be connected to the transmission line pylon, and the holder of the transmission line structure, characterized in that it comprises a holder fixed to the lower end of the inner casing.

The method according to claim 1 or claim 2, At least one is formed on the outer surface of the inner casing, the rain water flowing into the housing to prevent the inflow into the connecting portion of the inner casing and the bracket riding the outer surface of the inner casing. Lightning apparatus for a transmission line structure further comprises a shade of insulator.

The apparatus of claim 3, wherein the shade is integrally formed downward on the outer surface of the inner casing.

The method according to claim 1 or 2, wherein the power cable,

Core conductor, which is the main path for transmitting power,

An insulator surrounding and supporting the core conductor;

A sheath conductor wrapped around the insulator to facilitate grounding;

And an anticorrosive layer surrounding the sheath conductor and blocking contact with the conductor.