KR20150035663A - Ground structures for induced magentic current and cable trough having thereof - Google Patents

Ground structures for induced magentic current and cable trough having thereof Download PDF

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Publication number
KR20150035663A
KR20150035663A KR20130115756A KR20130115756A KR20150035663A KR 20150035663 A KR20150035663 A KR 20150035663A KR 20130115756 A KR20130115756 A KR 20130115756A KR 20130115756 A KR20130115756 A KR 20130115756A KR 20150035663 A KR20150035663 A KR 20150035663A
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KR
South Korea
Prior art keywords
cable trough
conductive material
cable
grounding
ground
Prior art date
Application number
KR20130115756A
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Korean (ko)
Inventor
최순규
성상현
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최순규
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Publication date
Application filed by 최순규 filed Critical 최순규
Priority to KR20130115756A priority Critical patent/KR20150035663A/en
Publication of KR20150035663A publication Critical patent/KR20150035663A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60M—POWER SUPPLY LINES, AND DEVICES ALONG RAILS, FOR ELECTRICALLY- PROPELLED VEHICLES
    • B60M1/00—Power supply lines for contact with collector on vehicle
    • B60M1/02—Details
    • B60M1/04—Mechanical protection of line; Protection against contact by living beings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/66—Connections with the terrestrial mass, e.g. earth plate, earth pin
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G9/00—Installations of electric cables or lines in or on the ground or water
    • H02G9/04—Installations of electric cables or lines in or on the ground or water in surface ducts; Ducts or covers therefor

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Laying Of Electric Cables Or Lines Outside (AREA)

Abstract

The present invention discloses a ground structure for preventing induced magnetic field and a cable trough having the ground structure.
The grounding structure for preventing induction magnetism generated in the high-voltage electric wire according to an embodiment of the present invention includes a conductive material net formed of a wire-like silicon steel or a conductive material such as copper and formed in a net structure, And a pair of conductive material plates for fixing both ends of the conductive material net.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a grounding structure for induction-induced magnetic resistance and a cable trough having the same,

The present invention relates to a ground structure for preventing induced magnetic field and a cable trough having the ground structure.

A cable trough is provided around an AC electric railway (usually called a train) and a railway of a high-speed railway as shown in Fig. Such a cable trough is for installing a high voltage cable, a communication line, etc., and is made of polymer or concrete, and a high voltage cable or a communication cable is accommodated and installed.

These cable troughs are currently accommodated with 22,900 volts high voltage cable and signal line and communication cable for various signal control.

However, the ground section of the train and the power of the high-speed rail must be installed around the railway because they are supplied by this high-voltage cable.

Here, since the high voltage cable, the signal line, and the communication line installed in the cable trough are mixed, induction magnetism generated in the high voltage cable may cause noise to the signal line or the communication line or damage to the communication equipment. Therefore, it is prescribed that a strong current wire cable such as a high voltage wire cable and a weak current cable such as a signal wire and a communication wire are spaced apart from each other by a certain distance.

On the other hand, for the high-voltage electric wire, induction of cancer, induction electromotive force, induction magnetic current or electromagnetic wave (hereinafter, simply referred to as induction magnetism including the electromagnetic wave and induced magnetic current generated in the high voltage wire) And so on, and it is being avoided by most people. In fact, when the radio or TV broadcast is disturbed when it passes around the high-tension wire, or when the low-pressure is the rain, the vicinity of the high-tension wire can be directly sensed by the generation of the induction magnet.

Therefore, the induction magnet generated from a strong current wire cable such as a high voltage wire cable causes various problems. Therefore, various attempts have been made to eliminate such induced magnetism.

For example, as shown in Fig. 10, an induction cable trough in which a conductive material such as a silicon steel sheet is entirely disposed inside a trough is disclosed in a registered utility model publication No. 20-00395575 (prior art document 1).

However, in the inductive-preventing cable trough disclosed in the prior art document 1, the inductive-preventing cable trough for providing a conductive material such as a silicon steel sheet is not an example of application of a known technique to a cable trough, The installation of the silicon steel sheet requires a great deal of cost in terms of cost.

Therefore, there is a demand for a device that can effectively remove the induction magnet of the cable trough while being inexpensive in terms of cost.

Korean Registered Utility Model No. 20-00395575

SUMMARY OF THE INVENTION It is an object of the present invention to provide a ground structure for induction-prevention, which can be easily installed in a cable trough or the like and is inexpensive in terms of cost.

Another object of the present invention is to provide a grounding structure for induction-prevention, which is designed to be installed in a cable trough easily.

It is a further object of the present invention to effectively prevent induction magnetism generated in a high-voltage electric wire by providing a grounding structure for induction-induced magnetism on a cable trough.

The grounding structure for preventing induction magnetism generated in the high-voltage electric wire according to an embodiment of the present invention includes a conductive material net formed of a wire-like silicon steel or a conductive material such as copper and formed in a net structure, And a pair of conductive material plates for fixing both ends of the conductive material net.

In one embodiment of the present invention, the conductive material net may have a diameter of about 0.1 mm to 2 mm.

In one embodiment of the present invention, the conductive material plate has a thickness of about 0.1 mm to 2 mm, and both ends of the conductive material plate are provided with holes for connecting between the grounding structures.

A cable trough for induction self-protection according to another embodiment of the present invention includes a cable trough for receiving the grounding structure, the high-voltage cable, and the like, and a lid for covering the top of the cable trough.

In another embodiment of the present invention, the grounding structure is attached to both side walls of the cable trough and is attached to the lower surface of the lid, and is formed on the upper end of the ground structure attached to both side walls of the cable trough. Is electrically connected to the ground structure fixed to the lid by being fixed to the step of the cable trough in a bent shape.

In another embodiment of the present invention, the ground structure attached between the cable troughs is electrically connected by a flexible ground joint, and the flexible ground joint comprises a ground structure, which is fixed to both side walls of the cable trough, And is electrically connected to the conductive material plate at the lower end thereof.

In another embodiment of the present invention, the apparatus further comprises a grounding rod for discharging the induced magnet generated in the cable trough to the ground, wherein the grounding rod may be installed at intervals of 10 m to 50 m.

The grounding structure for preventing induced magnetic field according to the embodiment of the present invention has an effect of effectively preventing induced magnetic field generated in a cable trough or the like.

In addition, the grounding structure for induction-prevention according to the embodiment of the present invention has an effect that it can be easily installed in existing installed troughs or newly installed troughs, and is also inexpensive in terms of cost.

The cable trough having the grounding structure for induction-prevention according to the embodiment of the present invention has the effect of effectively preventing the induction magnet generated in the cable trough or the like in which the high voltage electric wire is accommodated.

In addition, the cable trough having the grounding structure for induction-prevention according to the embodiment of the present invention has the effect of not only being easily installed in a newly installed trough, but also being inexpensive in terms of cost.

1 is an exploded perspective view of a grounding structure for preventing induced current according to an embodiment of the present invention.
2 and 3 are exploded perspective views illustrating an example in which a ground structure for preventing induced current according to another embodiment of the present invention is installed in a conventional cable trough.
4 is a cross-sectional view of the cable trough shown in Figs. 2 and 3. Fig.
5 is a diagram of a right-hand rule of a lent for explaining the principle of generation of induction magnetism.
Fig. 6 conceptually shows the induction magnet generated in the cable trough shown in Fig. 4. Fig.
Fig. 7 is a perspective view of a cable trough having the grounding structure for induction-prevention shown in Figs. 2 and 3. Fig.
FIG. 8 is a cross-sectional view taken along line AA 'of the cable trough of FIG. 7; FIG.
9 is a perspective view showing a conventional cable trough.
Fig. 10 is a view showing a conventional cable trough for prevention of inductance.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments of the present invention can be modified in various forms, and the scope of the present invention should not be construed as being limited to the following embodiments. This embodiment is provided to more fully describe the present invention to those skilled in the art. Thus, the shape of the elements in the figures has been exaggerated to emphasize a clearer description.

Hereinafter, a grounding structure for induction-induced magnetic prevention according to the present invention will be described in detail with reference to FIG.

1 is an exploded perspective view of a grounding structure for preventing induced current according to an embodiment of the present invention.

1, the grounding structure 100 for induction-induced magnetic protection according to the present invention includes a copper mesh or silicon steel mesh 55 and a copper mesh or silicon steel mesh 55 And a copper plate or a silicon steel plate 60 which is bent in a C-shape to cover a certain portion of both sides thereof.

The copper mesh or silicon steel mesh 55 is formed in a net shape crossing a wire shape having a diameter of 0.1 mm to 2 mm. When the diameter of the copper net or the silicon steel net 55 is thinner than 0.1 mm, it can be formed by braiding. Further, in the case of the copper mesh or silicon steel mesh 55, it is preferable that the thickness thereof is about 0.5 to 0.7 mm by forming a plurality of meshes. However, the thickness of the copper mesh or silicon steel mesh 55 may be one or several times the thickness of the copper mesh or silicon steel mesh 55, The folding can be determined by the voltage at which the high-voltage wire is transmitted.

Here, the induced electromotive force generated by the electromagnetic induction is proportional to the change amount of the flux linkage in accordance with the Faraday's law. Therefore, the induction magnet generated in the cable trough does not have a flux linkage, but since the voltage to be transmitted to the transmission line is an alternating voltage, it is generated in the form of a flux linkage, and its intensity is proportional to the electric current passing through the transmission line. Therefore, if the induction magnet is large, the copper mesh or the silicon steel mesh may be formed thick in multiple layers, or a thick wire may be used.

The c-folded copper plate or silicon steel plate 60 is for fixing the shape of the copper net or the silicon steel net 55 to a trough or the like as will be described later. The copper plate or silicon steel plate 60 is pressed to insert and fix the end of the net 55 therein. In addition, holes 61 are formed at both ends of the silicon steel plate 60 so as to be connected to each other in units of cable troughs.

Hereinafter, a method of installing the grounding structure 100 of the present invention in the cable trough 20 will be described with reference to FIGS. 2 to 4. FIG.

FIGS. 2 and 3 are exploded perspective views showing an example in which a grounding structure for preventing induction current according to another embodiment of the present invention is installed in a conventional cable trough. FIG. 4 is a sectional view of the cable trough shown in FIG. 2 and FIG. to be.

As shown in FIGS. 2 and 3, since the cable troughs are continuously provided, it is preferable that the grounding structure 100 for preventing the induced magnetism is manufactured in accordance with the length and width of the cable trough 20.

Here, when the grounding structure 100 for induction-prevention is installed on the cable trough, the grounding structure 100 for induction-prevention is formed in the form of the net 55, so that it can be flexibly applied to various types of cable troughs . In other words, if the width of the cable trough 20 is somewhat wider than the width of the induction-preventing ground structure 100, the size of the cable trough can be easily adjusted by extending the net 55, and vice versa It is the same.

As shown in FIGS. 2 and 3, an example in which the grounding structure 100 for induction-prevention is installed on both side walls of the cable trough 20 and the bottom surface of the lid 10 is shown and described. However, It does not. That is, it is also known that it may be more effective to be installed on the bottom surface of the cable trough 20. However, as shown in Figs. 2 and 3, the provision of the grounding structure 100 for induction-induced magnetic protection is facilitated in order to prevent induction of magnetism in the cable trough 20 installed in the prior art. The generation of the induction magnet in the cable trough 20, which will be described later with respect to FIG. 6, will be described in detail in the description.

Hereinafter, with reference to FIG. 4, a structure for providing the grounding structure 100 for induction-preventing magnetic fields to the cable trough 20 will be described in more detail.

First, the grounding structure 100 for preventing induced magnetic field is installed on both side walls of the cable trough 20. The grounding structure 100 for preventing induction is fixed to a side wall of a copper plate or a hole 61 formed on both ends of a silicon steel plate 60 by means of a fastening means such as a screw. At this time, it is preferable that the silicon steel plate 60 is provided by bending the step portions 21 formed on both side walls.

Also, a grounding structure 100 for preventing induction is fixed to the lower surface of the lid 10 by a fastening means such as a screw. As described above, since a contact portion is formed at the step portion of the cable trough 20 to connect the ground structure 100 for preventing induced demagnetization provided on the lid 10, a separate connecting device is not required.

Referring back to FIG. 3, the cable trough 20 is continuously installed, so that the grounding structure 100 for preventing self-induced magnetism of the present invention is also formed to match the size of the cable trough 20. Therefore, a connecting device for connecting the grounding structures 100 for preventing induced magnetic field is required. This connection device is connected using a commercially available flexible ground joint 70. 3, the flexible ground joint 70 connects the silicon steel plates 60 at the lower end of the ground structure 100 provided on both side walls of the cable trough 20 by bolt-nut fastening .

This is because the induced magnetic force generated in the cable trough in relation to FIG. 8 is more effectively and advantageously reliably prevented from flowing into the ground by the grounding rods 70 installed in the ground layer.

Hereinafter, the generation principle of the induced magnet generated in the cable trough 20 will be briefly described with reference to FIGS. 5 and 6. FIG.

Fig. 5 is a diagram showing a right-hand rule of a lent for explaining the principle of induction magnetism, and Fig. 6 conceptually shows an induction magnet generated in a cable trough shown in Fig.

As shown in FIG. 5, induction electricity is generated in a form that surrounds the electric power transmission direction in accordance with the right-hand rule of the lens.

Therefore, if electric current flows in the cable trough as shown in Fig. 6 from the front to the back of the drawing, the induction magnet flows in the direction of the arrow as shown by the one-dot chain line.

6, since the ground structure 100 according to the present invention is provided on the sidewall of the cable trough 20 and on the surface of the lid 10 thereof, the induction magnet is most effectively applied to the ground rod 70 shown in Fig. 8 Can be challenged. As shown in Fig. 6, inductor bottom is also formed on the bottom surface of the cable trough 20, but this is formed in the lower (underground) side, and the induced magnetic field in the ground portion is effectively prevented, Lt; / RTI > is also attenuated or prevented.

Hereinafter, a grounding structure for discharging the induced magnet generated in the cable trough 20 to the ground will be described with reference to FIGS. 7 and 8. FIG.

Fig. 7 is a perspective view of a cable trough having the grounding structure for induction-prevention shown in Figs. 2 and 3, and Fig. 8 is a sectional view taken along the line A-A 'of the cable trough of Fig.

As shown in FIG. 8, the ground structures 100 are connected to each other by a joint 70. The grounding rod 80 is provided so as to be connected from the joint 70 so that the induced magnetic field generated in the cable 22 accommodated in the cable trough 20 flows into the ground. The grounding rods 80 are preferably arranged at intervals of 10 to 20 m. On the other hand, since the common ground is used for the current high-speed railway and all the newly-installed electric railway sections, it can be attached to a common ground network provided around the railway instead of the ground rod 80. Here, the common ground refers to the ground attached to a common ground network installed on the line of all the facilities (train, electric power, signal, communication) of the train section.

The foregoing detailed description is illustrative of the present invention. In addition, the foregoing is intended to illustrate and explain the preferred embodiments of the present invention, and the present invention may be used in various other combinations, modifications, and environments. That is, it is possible to make changes or modifications within the scope of the concept of the invention disclosed in this specification, within the scope of the disclosure, and / or within the skill and knowledge of the art. The embodiments described herein are intended to illustrate the best mode for implementing the technical idea of the present invention and various modifications required for specific applications and uses of the present invention are also possible. Accordingly, the detailed description of the invention is not intended to limit the invention to the disclosed embodiments. It is also to be understood that the appended claims are intended to cover such other embodiments.

10: trough lid 11: handle groove
20: trough body 21:
100: grounding structure to prevent induction
55: Silicon steel mesh 60: Silicon steel sheet
61: hole 70: flexible joint for grounding
71: hole

Claims (11)

A grounding structure for preventing induction magnetism generated in a high-voltage electric wire,
A conductive material net formed by a net structure with a conductive material such as silicon steel or copper,
A pair of conductive material plates bent in a U shape to fix both ends of the conductive material net,
And a grounding structure for preventing induced magnetism. The method according to claim 1,
Wherein the conductive material net has a diameter of about 0.1 mm to about 2 mm. The method according to claim 1,
Wherein the conductive material plate has a thickness of about 0.1 mm to 2 mm. The method according to claim 1,
Wherein a hole for connecting between the grounding structures is formed at both ends of the conductive material plate. A ground structure according to any one of claims 1 to 4,
A cable trough for accommodating a high voltage cable, and the like
A cover for covering an upper end of the cable trough,
Wherein the cable trough is made of a metal. 6. The method of claim 5,
Wherein the grounding structure is attached to both side walls of the cable trough and is also attached to the lower surface of the lid. 6. The method of claim 5,
Characterized in that the conductive material plate formed at the upper end of the grounding structure attached to both side walls of the cable trough is electrically connected to the grounding structure fixed to the step of the cable trough and fixed to the lid. Antistatic cable troughs. 6. The method of claim 5,
Wherein the ground structure attached between the cable troughs is electrically connected by a flexible ground joint. 9. The method of claim 8,
Wherein the flexible grounding joint is connected to a lower end portion of a ground structure fixedly provided on both side walls of the cable trough and is electrically connected to the hole formed in the conductive material plate. 6. The method of claim 5,
Further comprising a grounding rod for discharging the induced magnet generated in the cable trough to the underground. 11. The method of claim 10,
Wherein the grounding rods are installed at intervals of 10 m to 50 m.
KR20130115756A 2013-09-28 2013-09-28 Ground structures for induced magentic current and cable trough having thereof KR20150035663A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD884997S1 (en) 2018-03-06 2020-05-19 Samsung Electronics Co., Ltd. Washing machine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
USD884997S1 (en) 2018-03-06 2020-05-19 Samsung Electronics Co., Ltd. Washing machine

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