KR101482238B1 - ELP riser pipe for underground power cable - Google Patents

Abstract

An embodiment of the present invention relates to a corrugated hard polyethylene underground electric pipe (ELP) connection riser pipe for an underground power cable. Specifically, the ELP connection riser pipe is provided to significantly reduce time spent on installing an underground power cable by minimizing excavation and to prevent foreign substances and rainwater from intruding into a corrugated pipe and an ELP which are buried underground. The ELP connection riser pipe for an underground power cable according to an embodiment of the present invention may comprise: a corrugated pipe, an ELP connection riser pipe, a riser pipe, a current detecting sensor, a control unit, an electric shock warning illumination unit, a camera, a pedestrian moving direction analysis unit, and a speaker. The ELP connection riser pipe has one end accommodated therein, which is contiguous with an electric pole of the corrugated pipe, and is buried underground to come in contact with the electric pole while having a part of an open upper part exposed on the ground surface. The ELP connection riser pipe comprises: a pipe body having open upper and lower parts and a duct shape which has an accommodation space having one open side therein by opening one among four sides, wherein the remaining three sides form an inclined surface toward the outside of the accommodation space, extend downwards, and vertically extend again from the lower ends of the sides; one or more reinforcing bars having both longitudinal ends fixated on the mutually facing sides of the pipe body and installed on the inside of the accommodation space; and a cover covering the open side of the pipe body by being coupled, via the reinforcing bar, to the pipe body by screws.

Description

Underground distribution ELP riser pipe for underground power cable

An embodiment of the present invention relates to an underground distribution ELP connection pipe among technologies of distribution, for example, it is possible to drastically shorten installation time of an underground cable through minimization of excavation, and at the same time, to a wave pipe (ELP conduit) buried in the ground The present invention relates to an underground distribution ELP connection pipe capable of suppressing infiltration of foreign matters and rainwater.

Power cables refer to cables used in transmission and distribution, and these power cables are broadly divided into underground cables and working cables based on the installed space. In other words, underground cable is a method in which a power cable is buried in an underground, and the buried power cable is used as an insulated conductor, and a processing cable is a method in which a power cable is connected to the ground through a pole.

Underground cables are less vulnerable than urban cables and less vulnerable and less vulnerable to security hazards because they are less exposed to the ground, while construction costs are more expensive than construction cables and construction and maintenance are difficult .

On the other hand, in the case of the newly developed underground new method, the electric wires are installed in the ground and the devices are installed in the main building. Unlike the existing grounding method, devices are installed in the main building, have.

Most of the underground ground cables are installed on the surface of the pole and are protected by the pre-pole girder bridge and the prefabricated bridge. At this time, the pole girder bridge is fixed to the steel bell. And is installed in a state where the cable is housed in the bent portion.

As shown in FIG. 1, the underground cable includes a synthetic wave tube (ELP conduit) 30 for protecting an underground cable in the ground, a pole-pole bridge 10 installed along the pole, (20) connecting the curved portions between the inlet port (30) and the inlet port (10). FIGS. 2 to 4 are views showing examples of the synthetic resin corrugated pipe 30, the half pipe 20 and the inlet corrugation 10.

The process of embedding the underground cable in the ground while being protected through the synthetic wave tube 30, the bridge 10 and the counterweight 20 will be briefly described. First, the synthetic wave tube 30 is installed in the ground below the pole. , And then the synthetic resin corrugated pipe 30 is cut out from the ground surface by a length of 1 m for the installation of the rebound pipe 20 after flipping of the underground cable. Subsequently, after the backflow tube 20 is installed, the back corrugation 10 is installed.

However, since the above-mentioned installation method of the underground cable has a structure in which a plurality of pipes are connected in multiple stages in order to protect the underground cable standing up along the pole, the construction method is complicated and the construction cost is high. Particularly, it took a lot of time and effort to install the assembly type semi-tubular pipe.

Also, the ground cable buried through the complicated installation process may be damaged due to various reasons as time elapses after the installation, thereby causing leak current to flow around the pole in case of rain. In addition, the leakage current around the pole causes a pedestrian to suffer an electric shock accident and, in severe cases, even to death.

Korean Utility Model Registration No. 20-0219438 (Announcement of April 2, 2001), "Grounding Device Particulars Cable Protection Pipe" Korean Patent Publication No. 10-2013-0052954 (published on March 23, 2013), "

The embodiment of the present invention can significantly reduce installation time of underground cables through minimization of excavation, and also can prevent the infiltration of foreign substances and rainwater into a corrugated pipe (ELP conduit) buried in the ground, Provide a connector.

In the embodiment of the present invention, the leakage current around the electric pole due to the underground cable is detected at the time of rain or the like, and when the current is over the preset current value, the fact is warned visually and audibly to walkers walking around the electric pole, To provide an underground distribution EI-EL connection.

The underground distribution EI-EL connection pipe according to the embodiment of the present invention is embedded in the ground to guide the underground cable which is buried in the ground from the electric pole, and the underground cable is embedded in the underground direction Wherein the wave tube is spaced apart by a length of 0.2 m to 0.3 m by a length of 0.2 m to 0.3 m and is embedded in the longitudinal direction one end of the wave tube inwardly and in a state of exposing a part of the open top surface to the earth surface, The lower side is opened and one side face of each of the four sides is opened to form a one-side opening type accommodating space. The three side faces form an inclined face outward with respect to the accommodating space 121a, A tube body extending in a vertical direction from each of the lower ends of the tube body; At least one reinforcement bar fixed at both ends in the longitudinal direction and installed inside the accommodating space and a flange for screwing to the tube body through the reinforcing bar to cover the open side of the tube body An ELP granular connector comprising an ELP granular connector and an ELP granular connector comprising an ELP granular connector and an ELP granular connector, the ELP granular connector comprising: And a first communication module installed on one or more surfaces of the earth surface adjacent to the electric pole to detect a current on the earth surface and to transmit a sensed current measurement value to an external receiving object, And a second communication module for receiving a signal transmitted through the first communication module, A threshold current value for preventing an electric shock of a pedestrian walking on the pole near the pole is preset and the current measured value input from the current sensor exceeds the threshold current value, And a circuit pattern for mounting the LED is formed on the pedestrian walking around the electric pole by operating in accordance with the control signal of the control unit, A power supply unit for supplying power to the LED substrate, a plurality of LEDs mounted on the LED substrate to emit light when the power is supplied through the power supply unit, an electric shock warning on the opaque surface, An electric shock warning panel in which only the phrase or image for the electric shock warning panel is in a transparent state, An electric shock warning light unit installed at an angle of 40 to 50 degrees to a predetermined height of the electric pole, the electric shock warning light unit including the LED substrate, a power supply unit, and a case for housing the LEDs therein, A camera for photographing a pedestrian walking on the camera, image information photographed by the camera, and a control signal of the control unit are inputted, and when the control signal is inputted from the control unit, A pedestrian movement direction analyzing means for analyzing a moving direction of a pedestrian walking on the pedestrian, determining whether there is a pedestrian showing a movement to enter a predetermined radius around the pedestal, generating a control signal for an electric shock warning in the presence of the pedestrian, And a control signal output through the pedestrian movement direction analysis unit And outputting an audible signal for an electric shock warning.

According to the embodiment of the present invention, it is possible to drastically shorten the installation time of the underground cable by minimizing the excavation during the granular installation of the underground cable, and it is possible to reduce the construction cost, and the wave tube (ELP conduit The infiltration of foreign matter, rainwater and the like can be effectively prevented.

Also, in case of rainy weather, it is possible to detect the leakage current around the electric pole due to underground cable and to warn the pedestrians walking around the electric pole when they are above the preset current value, by visual and audible warning, Prevention of accidents and loss of life due to electric shock accidents can be reduced.

FIG. 1 is a view illustrating a granular structure for a pole of a conventional underwater cable
FIG. 2 is a view showing an example of a synthetic resin wave tube in FIG.
Fig. 3 is a view showing an example of a half pipe in Fig. 1
FIG. 4 is a view showing an example of the correlation in FIG. 1; FIG.
FIG. 5 is a schematic view showing the overall configuration of an underground distribution ELP connection pipe according to an embodiment of the present invention.
6 is a block diagram showing an electrical configuration of an underground distribution ELP connection pipe according to an embodiment of the present invention.
FIG. 7 is a view showing the connection structure of the corrugated inlet-corrugated and ELP granular connector and the corrugated tube in FIG. 6
Figs. 8 to 11 are perspective views showing the construction of the ELP granular connector in Fig. 7
12 and 13 are an exploded perspective view and an assembled perspective view of an example of an electric shock warning illumination unit in an underground distribution ELP connector according to an embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings. These embodiments are described in sufficient detail to enable those skilled in the art to practice the invention. It should be understood that the various embodiments of the present invention are different, but need not be mutually exclusive. For example, certain features, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the invention in connection with one embodiment. It is also to be understood that the position or arrangement of the individual components within each described embodiment may be varied without departing from the spirit and scope of the present invention.

The following detailed description is, therefore, not to be taken in a limiting sense, and the scope of the present invention is to be limited only by the appended claims, along with the full scope of equivalents to which the claims are entitled, if properly explained. In the drawings, like reference numerals refer to the same or similar functions throughout the several views.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiment, it is to be understood that the invention is not limited to the disclosed embodiments. Also, in certain cases, there may be a term selected arbitrarily by the applicant, in which case the meaning thereof will be described in detail in the description of the corresponding invention. Therefore, the term used in the present invention should be defined based on the meaning of the term, not on the name of a simple term, but on the entire contents of the present invention.

Whenever a component is referred to as " including " an element throughout the specification, it is to be understood that the component may include other elements, not the exclusion of any other element, unless the context clearly dictates otherwise. Also, the terms " part, " " module, " and the like, which are described in the specification, refer to a unit for processing at least one function or operation, and may be implemented by hardware or software or by a combination of hardware and software .

Referring to FIGS. 5 to 13, an underground distribution ELEMENT connector according to an embodiment of the present invention will be described.

FIG. 5 is a conceptual view illustrating the overall configuration of an underground distribution ELP connection pipe according to an embodiment of the present invention. FIG. 6 is a schematic view showing an electrical configuration of an underground distribution ELP-type connection pipe according to an embodiment of the present invention. And FIG. 7 is a view showing the connection structure of the concave portion, the ELP granular connector, and the corrugated tube in FIG.

As shown in the figure, the underground distribution ELP connection pipe according to an exemplary embodiment of the present invention includes a wave tube 110, an ELP granular connection tube 120, an input correlation 130, a current sensing sensor 140, a controller 150 An electric shock warning illumination unit 160, a camera 170, a pedestrian movement direction analysis unit 180, and a speaker 190.

The corrugated pipe 110 is buried in the ground to guide the wire of the underground cable 200 buried in the ground from the electric pole 300. The corrugated pipe 110 is connected to the ground surface 0.0 > 0.3m < / RTI > in the direction of the ground. In other words, the corrugated pipe 110 is buried in the ground below the electric pole 300 and then cut to a length of 0.2 m to 0.3 m from the ground surface for the installation of the ELP granular connection pipe 120 after fling of the underground cable 200 Removed. In this embodiment, it is assumed that the corrugated pipe 110 is cut and removed by a length of 0.25 m.

The ELP granular connection pipe 120 is buried in contact with the electric pole 300 in a state in which one longitudinal end adjacent to the electric pole 300 of the corrugated pipe 110 is received inside and a part of the open top is exposed on the ground surface.

8 to 11 are perspective views showing the structure of such a granular connection pipe from various angles. As shown in the figure, the ELP granular connection pipe 120 includes a pipe body 121, a reinforcing bar 122, and a cover 123 .

The tube main body 121 is in the form of a duct in which upper and lower portions are opened and one side surface of each of the four sides is opened to form a one-side open receiving space 121a. 121b, 121c, and 121d extend downward and extend vertically from their lower ends, respectively, while forming inclined faces outward with respect to the accommodation space 121a.

The reinforcing bar 122 is installed inside the accommodating space 121a with both longitudinal ends of the reinforcing bar 122 being fixed to two opposing sides 121c and 121d of the tube body 121. In this embodiment, The reinforcement bar 122 is disposed between the two side surfaces 121c and 121d of the tube main body 121. The reinforcing bar 122 is formed of a pair of side plates 121 and 122, The present invention can be variously modified within a range that satisfies the conditions capable of supporting the tube main body 121.

The cover 123 is screwed to the pipe body 121 via the reinforcing bar 122 to close the open side of the pipe body 121. For this purpose, both ends of the cover 123 are connected to the pipe body 121 And a flange 123a for screw connection are respectively bent.

In the present embodiment, the upper side of the tube body 121 has a length of 130 mm and the lower side of the tube body 121 has a length of 300 mm And the total height of the tube body 121 is 400 mm. The length of the tube body extending downward is 300 mm and the length of the tube body extending vertically is 100 mm. When the side of the tube main body 121 facing the cover 123 is defined as a front surface, the tube body 121 has a width of 130 mm and a width of 250 mm on the basis of the front surface. The flange 123a of the cover 123 is 30 mm long and a hole having a diameter of 12 mm is formed in the flange 123a and screwed to the reinforcing bar 122 of the pipe body 121 through the hole Respectively.

However, the ELP granular connector 120 according to the present invention is not limited to the aforementioned numerical values.

5 to 7, the inlet correlation 130 is inserted into the receiving space 121a of the ELP standing up connector tube 120 through the open top of the ELP standing up connector tube 120, A portion of the portion from the electric pole 300 to the surface of the earth is shielded from the ground surface to a predetermined height.

7, the ELP granular connector tube 120 is buried in such a state that the upper end of the ELP granular connector tube protrudes from the ground surface by 0.05 m, and one end in the longitudinal direction of the corrugated pipe 110 is embedded in the ELP granular connector The height from the ground surface to one end of the corrugated pipe inserted into the ELP granular coupling pipe 120 is 0.25 m. However, the present invention is not limited thereto. But is not limited thereto.

A brief description will be given of a process in which the underground cable 200 is installed in a granular form along the electric pole 300 through the corrugated pipe 110, the ELP granular connection pipe 120, And then the corrugated pipe 110 is cut off by 0.23 m on the surface of the ground for the installation of the ELP granular connector pipe 120 after flipping of the underground cable 200. Then, after the ELP granular connector tube 120 is installed, the ELP granulation connector tube 120 is set back and then the inlet tube 130 is installed.

Through this installation process, it is possible to minimize the excavation and drastically shorten the installation time, and to effectively suppress the penetration of foreign matter and rainwater into the corrugated pipe, compared with the existing method using the conventional pipe.

The configuration of the current sensing sensor 140, the control unit 150, the electric shock warning illumination unit 160, the camera 170, the walking main moving direction analysis unit 180, and the speaker 190 will be described below.

The current sensing sensor 140 is installed on one or more surfaces on the ground surface adjacent to the electric pole 300. The current sensing sensor 140 senses a leakage current on the ground surface around the electric pole 300 at the corresponding position. The current sensing sensor 140 includes a first communication module 141 for transmitting a sensed current measurement value to an external receiving object. The current sensing sensor 140 transmits the measured current value to the controller 150 through the first communication module 141. [

The control unit 150 includes a second communication module 151 that receives a signal transmitted through the first communication module 141. The control unit 150 detects the current detected by the current sensing sensor 140 through the second communication module 151 The current measurement value is input. When the threshold current value for preventing the electric shock of the pedestrian walking around the pole is preset and the current measurement value inputted from the current detection sensor 140 exceeds the threshold current value, the controller 150 controls the electric shock warning And outputs the signal to the electric shock warning illumination unit 160 and the pedestrian movement direction analysis unit 180. [

The electric shock warning and illumination unit 160 operates in accordance with a control signal of the controller 150 to visually warn a pedestrian walking around the electric pole 300. To this end, the electric shock warning illumination unit 160 may include an LED substrate 161, a power supply unit 162, an LED 163, an electric shock warning panel 164, and a case 165.

FIGS. 12 and 13 illustrate such an electric shock warning illumination unit 160, and the electric shock warning illumination unit will be further described with reference to FIGS.

12 and 13 are an exploded perspective view and an assembled perspective view showing an example of an electric shock warning illumination unit in a submerged distribution ELP connector according to an embodiment of the present invention.

As shown in the figure, a circuit pattern for mounting the LED 163 is formed on the LED substrate 161, and a plurality of LEDs 163 are mounted on the LED substrate 161 to emit light when power is supplied. The plurality of LEDs 163 mounted on the LED substrate 161 are supplied with power through the power supply unit 162 and the electric shock warning panel 164 is arranged to face the LEDs 163, Only the phrase or image for warning of electric shock is transparent. Finally, the case 165 internally accommodates a sieve LED substrate 161, a power supply unit 162, and LEDs 163, which are combined with an electric shock warning panel 164 in an exposed state.

The electric shock warning illumination unit 160 is installed at an inclined angle of 40 to 50 degrees with respect to a predetermined height of the electric pole 300. When the LED 163 emits light, Display a phrase or image to warn of the danger.

Returning to Figs. 5 to 7, the camera 170 is installed on the electric pole 300 to photograph a pedestrian walking around the electric pole 300.

The pedestrian movement direction analyzing unit 180 receives the image information photographed through the camera 170 and the pedestrian movement direction analyzing unit 180 receives the control signal of the controller 150. [ The pedestrian movement direction analyzing unit 180 analyzes the moving direction of the pedestrian walking around the electric pole 300 through the image information inputted from the camera 170 when the control signal is inputted from the controller 150, A control signal for an electric shock warning is generated in the presence of the pedestrian, and the control signal is output to the speaker 190.

The speaker 190 operates according to the control signal output through the pedestrian movement direction analyzer 180 to output an audible signal for warning of an electric shock to inform the pedestrian of the risk of electric shock.

As can be seen from the above-described embodiments of FIGS. 5 to 13, the underground distribution ELP connector according to the present invention minimizes the installation time of the underground cable by minimizing the excavation during the granular installation of the underground cable The construction cost can be reduced, and the infiltration of foreign substances and rainwater into the corrugated pipe (ELP conduit) buried in the ground can be effectively prevented.

Also, in case of rainy weather, it is possible to detect the leakage current around the electric pole due to underground cable and to warn the pedestrians walking around the electric pole when they are above the preset current value, by visual and audible warning, Prevention of accidents and loss of lives caused by electric shock accidents can be reduced.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the exemplary embodiments or constructions. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described above, and all of the equivalents or equivalents of the claims, as well as the claims, will be included in the scope of the present invention.

110: corrugated tube 120: ELP granular connector
121: tube main body 121a: accommodation space
121b, 121c, 121d: side surface 122: reinforcing bar
123: Cover 123a: Flange
130: input correlation 140: current sensor
141: first communication module 150:
151: second communication module 160: electric shock warning light section
161: LED substrate 162: power supply unit
163: LED 164: Electric Shock Warning Panel
165: Case 170: Camera
180: Pedestrian moving direction analysis unit 190: Speaker
200: Underground cable 300: Electric pole

Claims (1)

The ground cable 200 is buried in the ground to guide wiring of the ground cable 200 buried in the ground from the electric pole 300. The ground cable 200 is grounded at a distance of 0.2 m to 0.3 m A wave tube 110 spaced apart by a length;
The corrugated pipe 110 is received in the longitudinal direction adjacent to the electric pole 300 in the longitudinal direction and is buried in contact with the electric pole 300 in a state of exposing a part of the opened upper surface to the ground surface, The side surfaces 121a, 121c, and 121d are formed in the shape of a duct in which one side surface of each of the four sides is opened to form a receiving space 121a having one open side, A tube body 121 extending downward while forming a slope toward the tube body 121 and extending vertically downwardly from the lower end of the tube body 121, both ends of the tube body 121 facing each other in the longitudinal direction, And at least one reinforcing bar 122 provided inside the space 121a and a flange for being screwed to the pipe body 121 via the reinforcing bar 122. The opening of the pipe body 121 The Connection ELP standing pipe comprises a cover 123 to prevent the surface 120;
Is inserted into the receiving space (121a) of the ELP granular connection pipe (120) through the open upper part of the ELP granular connection pipe (120), and the portion of the ground cable (200) An entrance correlation 130 for protecting a part from the ground surface to a predetermined height;
And a first communication module (141) installed on one or more surfaces of the ground plane adjacent to the electric pole (300) to sense a current on the ground surface and transmit a sensed current measurement value to an external receiving object, A sensor 140;
And a second communication module 151 for receiving a signal transmitted through the first communication module 141. The second communication module 151 receives a current measurement value sensed by the current sensing sensor 140, A control unit 150 for generating and outputting a control signal for an electric shock warning when a measured current value input from the current sensor 140 exceeds the threshold current value,
An LED board 161 operating in accordance with a control signal of the controller 150 to visually warn a walker walking around the electric pole 300 and forming a circuit pattern for mounting the LED 163, A plurality of LEDs 163 mounted on the LED substrate 161 to emit light when the power is supplied through the power supply unit 162, the LEDs 163, An electric shock warning panel 164 disposed on the opaque surface in a state of facing the electric shock warning panel 164 in an exposed state, And a case 165 for accommodating the LEDs 163 therein in a state of being inclined at an angle of 40 ° to 50 ° with respect to a predetermined height of the electric pole 300, An illumination unit 160;
A camera 170 installed in the electric pole 300 for photographing a pedestrian walking around the electric pole 300;
The control unit 150 receives image information to be photographed through the camera 170 and receives control signals from the control unit 150. When the control unit 150 receives a control signal, It is necessary to analyze the moving direction of the pedestrian walking around the electric pole 300 to determine whether or not there is a pedestrian exhibiting a movement to enter a predetermined radius around the electric pole 300 and then transmit a control signal for an electric shock warning in the presence of the pedestrian A pedestrian movement direction analysis unit 180 for generating and outputting the pedestrian movement direction;
And a speaker (190) operating according to a control signal outputted through the pedestrian movement direction analyzer (180) and outputting an audible signal for an electric shock warning.

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