KR101404102B1 - Distributing board comprising warning Apparatus for live wire and bus bar's complex sensor used for the same - Google Patents

Abstract

One aspect of the present invention relates to an electric power distribution board including a live wire alarm device capable of visually recognizing a temperature state in a live state of a high voltage of an electric power distribution board and also visually recognizing an approach state of a human body, The present invention also provides a composite sensor of the present invention, wherein the switchboard comprises: a switchboard main body having a display panel on a front surface thereof; and a power line connected to the power line, A composite sensor connected to the bus bar; a capacitance sensor provided in the composite sensor; a temperature sensor provided in the composite sensor; A human body detection sensor provided on the composite sensor, and a capacitance detection sensor provided on the display panel, An alarm lamp connected to the display panel for displaying the temperature of the bus bar in a live state, and an alarm speaker connected to the electrostatic capacity detection sensor and the human body detection sensor, And a living-wire alarm device including the living-wire alarm device.

Description

[0001] The present invention relates to a switchboard including a live wire alarm device and a bus bar used therein,

[0001] The present invention relates to a switchboard including a live wire alarm device and a composite sensor of the busbar used therein, and more particularly to a composite sensor of a switchboard including a live wire alarm device, The present invention relates to a switchboard including a live-alarming device that can be perceived audibly, and a composite sensor of a busbar used in the switchboard.

Generally, there is a danger of electric shock in close proximity to a distribution line that is a transmission line of thousands to tens of thousands of volts, so special care is required at all times.

Particularly, in the case of water receptacle for receiving and transforming high-pressure electricity, since the special high-voltage charging part is exposed to the outside for connection with various terminals, bus-bar, fuse, etc., It is necessary to strictly check whether the facility is in operation for the safety check or maintenance of the required facility, and it should be sufficiently isolated from the general public other than the manager.

Conventionally, in order to check whether a live wire is present, a method of grasping a predetermined length of an electrostatic detector by hand and directly bringing it into a facility has been widely used. For example, a very high electric field is formed near an extra-high voltage charging section such as 22.9 kV, so that there is a risk of electric shock accident even when not in direct proximity.

In view of such a problem, a number of live alarms have been developed to enable a warning of a live state through a predetermined portable device including a safety helmet. Such a live wire alarm detects the live wire state by using the electrostatic capacity, and detects the electrostatic induction voltage formed by the high electric field flowing on the secondary side of the incoming switch to operate the alarm lamp. The operator detects the dangerous range of work according to the operation result of the alarm lamp to prevent the electric shock accident.

However, the operator can visually check the live state of the switchboard through the alarm lamp, but there is a risk that many electric shock accidents occur unconsciously due to the inability to recognize it by voice.

One aspect of the present invention relates to an electric power distribution board including a live wire alarm device capable of visually recognizing a temperature state in a live state of a high-voltage switchboard, And to provide a composite sensor of this type.

Another aspect of the present invention is that the composite sensor of the busbar displays a temperature state of the high-voltage switchboard in a live state with lamps of different colors according to the temperature value, thereby allowing the user to more easily recognize the internal state of the switchboard And to provide a composite sensor of a busbar used therefor.

The switchboard according to an embodiment of the present invention includes a switchboard main body having a display panel on a front surface thereof and a power line connected to a power line supplying power to the inside of the switchboard main body and distributing power to each device provided inside the switchboard main body And a sensor body provided on the sensor body to form an outer appearance to be coupled to the bus bar, wherein the sensor body includes a capacitance detection sensor, a temperature sensor provided in the sensor body, An alarm lamp connected to the electrostatic capacity detection sensor and the temperature sensor for displaying the temperature of the bus bar in a live state, and a display panel And an alarm for displaying an approaching state of the human body in a live state connected to the electrostatic capacity detecting sensor and the human body detecting sensor And a live wire alarm device having a speaker.

The alarm lamp further includes a first color lamp unit, a second color lamp unit, and a third color lamp unit for displaying temperatures of different colors according to a range of temperature values sensed by the temperature sensor. .

The alarm lamp may further include a first controller for wirelessly receiving a temperature value measured by the temperature sensor and outputting a control signal according to a range of temperature values sensed by the temperature sensor, Compares a temperature value sensed by the temperature sensor with a predetermined first reference value and a second reference value and turns on the first color lamp unit if the temperature value is below a first reference value, The second color lamp unit is turned on if the temperature is between the second reference value and the third color lamp unit is turned on when the temperature value is equal to or higher than the second reference value.

The electrostatic capacitance detection sensor includes a first high voltage capacitor to which most of the high voltage is applied, a second high voltage capacitor to which a voltage is limited as compared to the first high voltage capacitor, and a second high voltage capacitor to which a current corresponding to a voltage applied to the second high voltage capacitor is rectified And a signal output unit for outputting an optical signal according to a signal output to the rectifier and delivering the optical signal to the alarm lamp.

The alarm speaker may include a PCM audio repeater for outputting a first voice message when the human body sensor detects the human body, an audio output amplifier for amplifying the first voice message output from the PCM audio repeater, And an output unit for outputting a first voice message output from the output amplifier to a worker by voice.

The first color lamp unit, the second color lamp unit, and the third color lamp unit may have a green lamp unit, a yellow lamp unit, and a red lamp unit, respectively, at 55 ° C and 85 ° C, respectively. .

The present invention relates to a switchboard of an embodiment of the present invention. The switchboard comprises a switchboard main body, a door provided on a front surface of the switchboard main body and having a display panel on one side thereof, and a supply line for supplying power to the inside of the switchboard main body, A bus bar for distributing electric power to be supplied to each device installed in the cabinet main body and a sensor body for forming an outer appearance to be coupled to the bus bar, A composite sensor including a temperature sensor provided on the main body and a human body detection sensor provided on the sensor body; a door sensor provided on the door for detecting opening and closing of the door; An alarm lamp electrically connected to the electrostatic capacity detection sensor and the temperature detection sensor, Hot-line alarm device comprising a sensor and alarm output speaker electrically connected to the human detection sensor and the door sensor, in that it comprises the features.

The alarm lamp may further include a first color lamp unit that is turned on when the temperature detected by the temperature sensor is lower than a first reference value and a second color lamp unit that detects a temperature value sensed by the temperature sensor, And a third color lamp unit which is turned on when the temperature sensed by the temperature sensor is equal to or higher than the second reference value.

The alarm speaker may further include a PCM audio repeater for outputting a first voice message when the operator senses the human body detection sensor and outputting a second voice message if the door sensor is detected as an operator, An audio output amplifier for amplifying a first voice message or a second voice message and an output unit for outputting a first voice message or a second voice message output from the audio output amplifier to a worker by voice.

A composite sensor of a bus bar according to an embodiment of the present invention includes a capacitance detection sensor for detecting a capacitance of a bus bar, a temperature sensor for sensing a temperature of the bus bar, And a human body detection sensor is provided.

The electrostatic capacity detection sensor is electrically connected to the alarm lamp provided on the display panel of the main body of the switchboard panel to visually display the current state of the bus bar by sensing the electrostatic capacity of the bus bar when power is supplied to the bus bar.

Further, the display panel is electrically connected to an alarm lamp provided on a display panel of the main body of the power distribution panel so as to display different colors by sensing a temperature value of the busbar.

The human body detection sensor is electrically connected to the alarm speaker provided on the display panel of the main body of the switchboard panel to sense the electrostatic capacity of the busbar when the power is supplied to the busbar.

Accordingly, an integrated switchboard including a live wire alarm device according to an embodiment of the present invention and a composite sensor of a busbar used therein can visually recognize a temperature state in a live state of a switchboard high voltage, There is an effect that can be perceived as enemy.

In addition, in the case of the switchboard including the live wire alarm device according to the embodiment of the present invention and the composite sensor of the busbar used therein, the temperature state in the live state of the high voltage of the switchboard is displayed as a lamp of a different color according to the temperature value, To more easily recognize the internal state of the switchboard.

1 is a side view schematically showing an electric distribution board.
2 is a block diagram illustrating a live wire alarm device of an ASS according to an embodiment of the present invention.
3 is a front view showing the switchboard shown in Fig.
4 is a view showing the display panel shown in Fig.
FIG. 5 is a view showing a utilization state of the busbar complex sensor shown in FIG. 2. FIG.
FIG. 6 is a view showing the busbar composite sensor shown in FIG. 2. FIG.
7 is a block diagram illustrating a live wire alarm apparatus of an ASS according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2 is a block diagram showing a live wire alarm device of an ASSEMBLY according to an embodiment of the present invention. FIG. 3 is a front view showing the switchboard shown in FIG. 1, and FIG. 4 3 is a view showing the display panel shown in Fig. 3, Fig. 5 is a view showing the utilization state of the busbar composite sensor shown in Fig. 2, and Fig. 6 is a view showing the bus bar composite sensor shown in Fig.

1 to 6, an electrical distribution board 10 having a live state alarm apparatus according to an embodiment of the present invention includes a switchboard main body 100 having a display panel 111 on a door 110, A bus bar 200 connected to a supply line (not shown) for supplying power to the inside of the main body 100 and distributing the supplied power to each apparatus installed in the cabinet main body 100, The electrostatic capacity detection sensor 400 provided at one side of the sensor body 310 has a sensor body 310 that forms an outer appearance to be coupled to the sensor body 310. The sensor body 310 has a temperature sensing A composite sensor 300 having a sensor 510 and a human body detection sensor 520 provided on another side of the sensor body; a capacitance sensor 400 provided on the display panel 111, An alarm lamp 610 connected to the sensor 510 for displaying the temperature of the bus bar 200 in a live state, And an alarm speaker 620 provided on the display panel 111 and connected to the electrostatic capacitance detection sensor 400 and the human body sensor 520 to display an approaching state of the human body in a live state, 600).

The switchgear main body 100 may have a rectangular parallelepiped shape having an inner space and a door 110 for opening and closing the switchgear main body 100 is provided on a side surface of the switchgear main body 100. A display panel 111 is provided on a front surface of the door 110. An alarm lamp 610 and an alarm speaker 620 are provided on the display panel 111 to allow the user to recognize a high voltage live state.

On the other hand, various electric devices 120 including a transformer 120 are installed in the cabinet main body 100.

The bus bar 200 is connected to a supply line for supplying power to the inside of the cabinet main body 100 and distributes the various electric devices 120. The bus bar 200 may be a conductor fixed to the inside of the cabinet main body 100.

Also, a cable 130 for connecting the bus bar 200 and the electric device 120 is provided in the inner space of the cabinet main body 100. The cable 130 serves to transmit the electric power supplied from the supply line to the electric device 120 via the bus bar 200.

The composite sensor 300 fixes the bus bar 200 to the cabinet main body 100 through the sensor main body 310 forming the outer appearance of the bus bar 200. For example, And can be fixed on the upper side of the main body 100 of the switchboard.

The composite sensor 300 includes a sensor body 310 that forms an outer appearance of the composite sensor 300. The composite sensor 300 includes a capacitance detection sensor 400 for detecting the capacitance of the busbar 200, A temperature sensor 510 for detecting the temperature of the worker 200, and a human body sensor 520 for detecting the proximity of the worker.

The sensor body 310 of the composite sensor 300 is formed with a fitting hole 311 to be inserted into the bus bar 200 to be long along the longitudinal direction.

The electrostatic capacity detection sensor 400 is provided at one side of the composite sensor 300 to detect the current state of the bus bar 200 by detecting the capacitance of the bus bar 200 when the power is supplied to the bus bar 200.

The electrostatic capacitance detection sensor 400 is electrically connected to the alarm lamp 610 provided on the display panel 111 to detect and display a current flowing state. A voltage divider 410 including a capacitor 411 and a second high voltage capacitor 412, a rectifier 420 for rectifying a current according to a voltage applied to the second high voltage capacitor 412, And a signal output unit 430 for outputting the optical signal according to the output signal and transmitting the optical signal to the alarm lamp 610.

That is, the capacitance detection sensor 400 prevents the voltage and current from exceeding the allowable current and voltage range of a detecting element such as a resistor or a device, which is generated when a voltage is applied to the high-voltage line in the switchboard 10, The voltage is distributed through the voltage distributor 410 to be detected.

The voltage divider 410 of the capacitance detection sensor 400 includes a first high voltage capacitor 411 which receives most of the high voltage and a second high voltage capacitor 411 which receives a limited voltage compared to the first high voltage capacitor 411. [ And a capacitor 412.

That is, most of the high voltage is applied to the first high voltage capacitor 411 by using the first high voltage capacitor 411 and the second high voltage capacitor 412 which are the high voltage capacitors, So that the voltage is applied as much as possible.

Accordingly, when a voltage is applied to the high-voltage line of the switchboard 10, a certain voltage is also applied to the second high-voltage capacitor 412, and the current corresponding to the voltage applied to the second high-voltage capacitor 412 is supplied to the rectifier 420, As shown in Fig.

That is, since the current flowing through the second high voltage capacitor 412 is AC, the rectifier 420 is provided for rectifying it and converting it into a signal for detecting the live state of the high voltage line.

The signal converted through the rectifier 420 is transmitted to the alarm lamp 610 via the signal output unit 430 via the first live signal receiver 610A.

The signal output unit 430 outputs the optical signal according to the converted signal from the rectifier 420 and transmits the optical signal to the alarm lamp 610. The signal output unit 430 includes a first live signal receiver 610A, To the alarm lamp 610 via the optical cable 610. Therefore, it is possible to visually inform the outside of the high-voltage live state applied to the switchboard 10 through the alarm lamp 610.

Here, the alarm lamp 610 can be any light source capable of visually outputting light, and an LED, an LD, a laser diode, or the like can be used.

Therefore, when power is supplied to the bus bar 200 installed in the switchboard 10, the energization state of the bus bar 200 is detected by the capacitance detection sensor 400, And is displayed on the lamp 610 so that the operator can visually recognize the live state of the switchboard 10.

Meanwhile, a temperature sensor 510 for sensing the temperature of the bus bar 200 is provided on the other side of the composite sensor 300 of the switchboard 10 according to the embodiment of the present invention.

The temperature sensor 510 senses the temperature of each of the R, S, and T busbars 200 and informs the alarm lamp 610 of the temperature of the R, S, and T booths 200, And a first control unit 610B for controlling the temperature of the bar 200 itself to compare the predetermined reference value and controlling the temperature value to display an alarm lamp 610 of a different color according to a preset reference value. The first controller 610B can wirelessly receive the temperature value measured by the temperature sensor 510 and control the alarm lamp 610. [

That is, when the temperature of the busbar 200 sensed by the temperature sensor 510 is lower than a predetermined first reference value, the first controller 610B outputs a first color for indicating the steady state of the switchboard 10 to an alarm lamp The first color lamp unit 611 of the alarm lamp 610 is turned on so that the first color lamp unit 611 is displayed. Here, the predetermined first reference value may be 55 ° C, and the first color lamp unit 611 displayed on the alarm lamp 610 may be the green lamp unit 611.

If the temperature of the bus bar 200 sensed by the temperature sensor 510 is between a predetermined first reference value and a second reference value, the first controller 610B may set a second color for indicating the state of attention of the switchboard 10, The second color lamp unit 612 of the alarm lamp 610 is turned on so that the alarm lamp 610 is displayed. Here, the predetermined first reference value may be 55 ° C, the second reference value may be 85 ° C, and the second color lamp unit 612 displayed on the alarm lamp 610 may be the yellow lamp unit 612.

When the temperature of the bus bar 200 sensed by the temperature sensor 510 is equal to or higher than a predetermined second reference value, the first controller 610B outputs a third color for indicating a dangerous state of the switchboard 10 to an alarm lamp The third color lamp unit 613 of the alarm lamp 610 is turned on so that the third color lamp unit 613 is displayed. Here, the predetermined second reference value may be 85 캜, and the third color lamp unit 613 displayed on the alarm lamp 610 may be the red lamp unit 613.

Therefore, when the bus bar 200 installed in the switchboard 10 according to the embodiment of the present invention is energized, the energization state and the temperature state of the bus bar 200 are detected by the capacitance detection sensor 400 and the temperature sensor The first control unit 610B controls the green lamp unit 611 of the alarm lamp 610 of the display panel 111 to illuminate when the temperature of the bus bar 200 is 55 ° C. or less, The yellow lamp unit 612 of the alarm lamp 610 of the display panel 111 is turned on and the temperature of the bus bar 200 is 85 ° C. If the temperature of the bus bar 200 is 55 ° C. to 85 ° C., The red lamp unit 613 of the alarm lamp 610 of the switchboard 111 is lighted so that the operator can visually recognize the live state and the temperature state of the switchboard 10 more accurately.

In addition, a human body detection sensor 520 for detecting an approaching state and an approaching state of the worker is provided on the other side of the composite sensor 300. The human body detection sensor 520 detects a proximity state of a human body, An ultrasound sensor, or a photo interrupter capable of detecting a passing state of a predetermined section.

When an operator approaches the outside of the switchboard 10 and is sensed by the human body sensor 520 in a state where the signal output device 430 of the electrostatic capacitance detection sensor 400 outputs an optical signal, 620 may generate an alarm condition by voice message so that the operator can audibly inform the operator of the current state of the inside of the switchboard 10.

Here, the alarm speaker 620 must receive the output signal simultaneously from the second live signal receiver 620A and the human body detection sensor 520, respectively.

The alarm speaker 620 includes a PCM audio repeater 621 for outputting a voice message, an audio output amplifier 622 for amplifying the voice message output from the PCM audio repeater 621, a voice output from the audio output amplifier 622, And an output unit 623 for outputting a message to the user by sound.

Specifically, when an operator approaches the outside of the switchboard 10 in a state of outputting an optical signal by the signal output device 430 of the electrostatic capacitance detection sensor 400, the human body (not shown) provided in the composite sensor 300 of the busbar 200 The second controller 620B outputs an alarm signal when the human body sensor 520 detects the operator and the controller 620B sequentially outputs an alarm signal to the PCM audio repeater The audio output amplifier 622 amplifies the voice message output from the PCM audio repeater 621 and the output unit 623 outputs the voice message output from the audio output amplifier 622 to the user To be output to the sound.

Therefore, when the operator approaches the outside of the switchboard 10 in a state of outputting the optical signal by the signal output device 430 of the electrostatic capacity detection sensor 400, the human body detection sensor 520 provided in the composite sensor 300 And is output from the alarm speaker 620 of the display panel 111 so that the live state of the switchboard 10 can be audibly recognized.

As a result, the switchboard 10 including the live wire alarm apparatus 600 according to the embodiment of the present invention and the composite sensor 300 of the busbar 200 used thereon visually recognize the live state of the high voltage of the switchboard 10 So that it is possible to perceive audibly, so that it is possible to reliably recognize the live state of the high voltage to the operator.

The composite sensor 300 of the bus bar 200 may be used as the composite sensor 300 of the bus bar 200. In the composite sensor 300 of the bus bar 200, It is possible to more easily recognize the internal state of the switchboard 10 by displaying the temperature state of the switchboard 10 in the live state of the high voltage with lamps 611, 612, and 613 of different colors according to the temperature value.

In the drawing, the alarm lamp 610 includes a first color lamp unit 611, a second color lamp unit 612, and a third color lamp unit 611 connected to the electrostatic capacity detection sensor 400 and the temperature sensor 510, The alarm lamp 610 is connected to the electrostatic capacity detection sensor 400 and the human body detection sensor 520 to detect a state of the human body in a live state, It is of course possible to have more parts (not shown).

The composite sensor 300 is formed to correspond to the first color lamp unit 611, the second color lamp unit 612 and the third color lamp unit 613 of the alarm lamp 610, The first color display unit 300A, the second color display unit 300B, the third color display unit 300C, and the third color display unit 300C, which are lit in the same manner as the lamp unit 611, the second color lamp unit 612, and the third color lamp unit 613, Of course.

Next, a live wire alarm apparatus for an ASS according to another embodiment of the present invention will be described with reference to FIG. 7 is a block diagram illustrating a live wire alarm apparatus of an ASS according to another embodiment of the present invention.

7, the switchboard 10 'including the live wire alarm device according to another embodiment of the present invention includes a door (not shown) provided on the front surface of the switchboard main body 100 and having a display panel 111 on one side thereof A booth bar 200 for distributing electric power supplied from a power supply line for supplying power to the inside of the cabinet main body 100 to each apparatus installed in the cabinet main body 100; The electrostatic capacity detecting sensor 400 provided at one side of the sensor body 310 has a sensor body 310 that forms an outer appearance to be coupled with the sensor body 310 and a temperature And a body sensor 520 provided on the other side of the sensor body 510. The door 500 is provided with a door 500 for detecting the opening and closing of the door 110, A capacitance sensor 400 and a temperature sensor 510 provided on the display panel 111, An alarm speaker 620 provided on the display panel 111 and electrically connected to the electrostatic capacity detection sensor 400 and the human body detection sensor 520 and the door sensor 530, And a living-room alarm device 600 'having a living-room alarm device 600'.

The alarm speaker 620 includes a PCM audio repeater 621 for outputting a first voice message when an operator is detected by the human body detection sensor 520 and outputting a second voice message when an operator is detected by the door sensor 530, An audio output amplifier 622 for amplifying the first voice message or the second voice message output from the PCM audio repeater 621 and a second voice message output from the audio output amplifier 622 And an output unit 623 for outputting a sound to the worker.

That is, the door 110 of the switchboard 10 is provided with a door sensor 530 to detect the open / closed state of the door 110. When the operator senses the door sensor 530, And outputs a second voice message distinguished from the voice message.

Accordingly, the operator can recognize the high-voltage live state of the human body detection sensor 520 provided in the composite sensor 300 and simultaneously detect the high-voltage live state of the door sensor 530 provided in the switchgear door 110 It becomes possible to recognize the live state.

As described above, the composite sensor of the switchboard including the live wire alarm device and the busbar used in the embodiment of the present invention includes the electrostatic capacity detection sensor for detecting the capacitance of the bus bar, It is possible to visually recognize the live state of the high voltage of the power distribution board through the composite sensor of the bus bar provided with the human body sensor for detecting the human body, and to perceive it as the basic technical idea. Therefore, many modifications may be made by those skilled in the art without departing from the scope of the present invention.

10 ... Distribution board 100 ... Distribution board main body
200 ... Busbar 300 .. Multiple Sensors
400 ... Capacitive detection sensor 510 ... Temperature detection sensor
520 ... Human body detection sensor 600 ... Live alarm

Claims (13)

A switchboard main body having a display panel on a front surface thereof,
A booth bar connected to a supply line for supplying power to the inside of the cabinet main body and for distributing power supplied to each device installed in the cabinet main body,
And a body sensor for detecting a temperature of the living body, the body sensor having a sensor body for forming an outer appearance to be coupled to the bus bar, the sensor including a capacitance sensor provided in the sensor body, a temperature sensor provided in the sensor body, A composite sensor;
An alarm lamp provided on the display panel and connected to the electrostatic capacity detection sensor and the temperature sensor to display the temperature of the bus bar in a live state, And an alarm speaker for indicating an approaching state of the human body in a live state connected thereto. The method according to claim 1,
The alarm lamp,
A first color lamp unit, a second color lamp unit, and a third color lamp unit for displaying temperatures of different colors according to a range of temperature values sensed by the temperature sensor. 3. The method of claim 2,
Wherein the alarm lamp is provided with a first controller for wirelessly receiving a temperature value measured by the temperature sensor and outputting a control signal according to a range of temperature values sensed by the temperature sensor,
Wherein the first control unit includes:
And a second temperature controller for comparing a temperature value detected by the temperature sensor with a preset first reference value and a second reference value and lighting the first color lamp unit if the temperature value is equal to or less than a first reference value, The second color lamp unit is turned on if the temperature is between the reference values, and the third color lamp unit is turned on when the temperature value is equal to or higher than the second reference value. delete The method according to claim 1,
The alarm speaker,
A PCM audio repeater for outputting a first voice message when an operator is detected by the human body detection sensor,
An audio output amplifier for amplifying a first voice message output from the PCM audio repeater,
And an output unit for outputting a first voice message output from the audio output amplifier to a worker by voice. delete A switchboard main body,
A door provided on a front surface of the cabinet main body and having a display panel on one side,
A booth bar connected to a supply line for supplying power to the inside of the cabinet main body and for distributing power supplied to each device installed in the cabinet main body,
And a body sensor for detecting a temperature of the living body, the body sensor having a sensor body for forming an outer appearance to be coupled to the bus bar, the sensor including a capacitance sensor provided in the sensor body, a temperature sensor provided in the sensor body, A composite sensor;
A door sensor installed on the door for sensing opening and closing of the door,
An alarm lamp provided on the display panel and electrically connected to the electrostatic capacity detection sensor and the temperature detection sensor; and an alarm speaker provided on the display panel and electrically connected to the electrostatic capacity detection sensor, the human body detection sensor, and the door sensor, And an electric power supply unit for supplying electric power to the switchboard. delete delete And a human body detection sensor for detecting a proximity state of the worker. The apparatus of claim 1, further comprising: a capacitance sensor for detecting a capacitance of the busbar; a temperature sensor for sensing a temperature of the busbar; Composite sensor. 11. The method of claim 10,
Wherein the capacitance detection sensor comprises:
Wherein the bus bar is electrically connected to an alarm lamp provided on the display panel of the main body of the cabinet, when the power is supplied to the bus bar, the electrostatic capacity of the bus bar is sensed to visually indicate the current state of the bus bar. 11. The method of claim 10,
Wherein the bus bar is electrically connected to an alarm lamp provided on the display panel of the main body of the cabinet to detect a temperature value of the bus bar and display different colors. 11. The method of claim 10,
Wherein the human body detection sensor comprises:
Wherein the bus bar is electrically connected to an alarm speaker provided on the display panel of the main body of the switchboard panel to sense the electrostatic capacity of the bus bar when power is supplied to the bus bar.

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