JP2007005027A - Plug with tracking detection functionality - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plug with the tracking detection function which reports generation of the tracking without the need for any dedicated outlet. <P>SOLUTION: A sensor 5 is embedded between blades 4 of a plug cap body 2, and the plug cap body 2 incorporates a printed circuit board 7 which mounts various types of circuits as well as an LED 11, and a buzzer 12 each served as an alarming means 13. In the sensor 5, a current flows when the spark discharges between the blades 4 come in contact with each other through a hole 2a on the plug cap body 2. The circuits mounted on the printed circuit board 7 detect tracking to drive the alarming means 13 for reporting of generation of the tracking. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a plug with a tracking detection function provided with a sensor for detecting a spark discharge generated between plug blades of an insertion plug at an early stage of tracking generation.

  The present applicant has proposed the technique shown in Patent Document 1 as a technique for detecting tracking generated between plug blades of an insertion plug. This is to detect the occurrence of tracking by providing a sensor made of a conductive material between the plug blades of the plug, and detecting the current generated when a spark comes in contact with the sensor. Used by connecting the signal output line to a dedicated outlet. This dedicated outlet is provided with a tracking detection circuit for detecting tracking from the output current of the sensor. When the tracking is detected, the tracking detection circuit outputs a signal and cuts off the electric circuit by a blocking means, such as an LED or a buzzer. An alarm means notifies the occurrence of tracking.

JP 2004-36283 A

  In this way, the conventional one requires a dedicated outlet, and when a general outlet is already installed, it has to be replaced with a dedicated outlet, and there is a problem that costs and labor are required.

  According to the first aspect of the present invention, there is provided a plug with a tracking detection function provided with a plug-to-blade sensor for detecting spark discharge between plug blades of a plug body inserted and connected to a power outlet. An alarm means for notifying the occurrence of tracking when the inter-blade sensor detects spark discharge is provided in the plug body.

  According to the second aspect of the present invention, in the plug with a tracking detection function provided with the plug-blade sensor for detecting spark discharge between the plug blades of the plug plug body to be inserted into and connected to the power outlet, Provide a separate body in the middle via the power cord and connect it to the electrical equipment body. Wire the signal cable for transmitting the sensor detection signal in the power cord between the plug body and the separate body, and between the plug blades. A warning means for notifying the occurrence of tracking when the sensor detects a spark discharge is provided separately.

  According to the invention described in claim 3, in the plug with a tracking detection function provided with the inter-blade sensor for detecting spark discharge between the plug blades of the plug body inserted into and connected to the power outlet, Connected to the main body of the electrical equipment through the power cord, wired a signal line to transmit the sensor detection signal in the power cord between the plug body and the main body of the electrical equipment, and the inter-blade sensor detects the spark discharge. The electric device main body is provided with a warning means for notifying the occurrence of tracking when it is performed.

  According to the invention described in claim 4, in the plug with a tracking detection function provided with the plug blade sensor for detecting spark discharge between the plug blades of the plug plug body inserted and connected to the power outlet, A power tap is formed by providing a plurality of plug blade insertion holes, and an inter-insertion hole sensor for detecting spark discharge is provided between the plug blade insertion holes, and at least one of the inter-blade sensor or the inter-insertion hole sensor is A warning means for notifying the occurrence of tracking when a spark discharge is detected is provided in the plug plug body.

  According to the fifth aspect of the present invention, in the plug with a tracking detection function provided with the inter-blade sensor for detecting spark discharge between the plug blades of the plug body inserted into and connected to the power outlet, the plug body is Connected to the outlet body with a plurality of plug blade insertion holes via the power cord to constitute a power tap, and provided with an insertion hole sensor for detecting spark discharge between the plug blade insertion holes of the outlet body, An alarm means for notifying the occurrence of tracking when at least one of the plug-blade sensor or the plug-hole sensor detects a spark discharge is provided on at least one side of the plug-plug body or the outlet body.

  According to the first aspect of the present invention, it is possible to notify the occurrence of tracking in the plug body without the need for a dedicated outlet, and it is not necessary to draw out a signal line from the plug body, thereby reducing the manufacturing cost. Can be reduced. Further, even when a plurality of plugs are connected to the outlet, it is possible to easily determine the plug in which tracking has occurred. In addition, since it can be used as a member by incorporating it into the plug with a built-in earth leakage breaker, the outer dimensions can be molded almost without change, and therefore the manufacturing cost can be reduced.

  According to the second aspect of the present invention, there is an effect that the plug plug main body and the electric device main body are not increased in size and a dedicated outlet is not required.

  According to the third aspect of the present invention, since the plug main body does not increase in size and the electric device main body is provided with the display unit, the audio output unit, and the operation unit, these can be used. There is an effect that it is not necessary and the manufacturing cost can be reduced.

  According to the invention described in claim 4, when the tracking occurs between the plug blades or between the plug blade insertion holes, the occurrence of the tracking is notified by the plug plug body without requiring a dedicated outlet. There is no need to pull out the signal line from the plug body, and the manufacturing cost can be reduced.

  According to the fifth aspect of the present invention, there is an effect that the occurrence of tracking can be notified without requiring a dedicated outlet regardless of whether tracking occurs between the plug blades or between the plug blade insertion holes. is there.

  A sensor is embedded between the plug blades of the plug body, and a printed circuit board on which various circuits are mounted and an alarm means are incorporated in the plug body. When the spark discharge generated between the plug blades contacts through the hole of the plug body, a current flows, and the sensor detects tracking by a circuit mounted on the printed circuit board to drive an alarm means to notify the occurrence of tracking.

  A first embodiment of a plug with a tracking detection function according to the present invention will be described with reference to the accompanying drawings of FIGS.

  The plug 1 with a tracking detection function includes, for example, an insertion plug body 2 made of a material having high tracking resistance such as phenol or PBT, and the insertion plug body 2 includes an electric device body (not shown) and a power cord 3. Is electrically connected. The plug body 2 is internally provided with a pair of plug blades 4, 4 electrically connected to the power cord 3. The plug blade sensor 2 is connected to the plug body 2 between the plug blades 4, 4. It is communicated with the outside through a hole 2 a that is buried and formed in the plug body 2. The inter-blade sensor 5 is formed of a conductive material such as a metal piece, and is connected to a printed circuit board 7 accommodated in the insertion plug body 2 via a signal line 6.

  The printed circuit board 7 includes a tracking detection circuit 8 to which a signal is input when spark plug is detected by connecting the blade-to-blade sensor 5, and noise that outputs a signal when the output signal of the tracking detection circuit 8 is longer than a predetermined time. The prevention time delay circuit 9, the self-holding circuit 10 that self-holds the output signal of the noise prevention time delay circuit 9, and the alarm means 13 such as the LED 11 and the buzzer 12 are driven when the output signal of the self-holding circuit 10 is input. An alarm means drive circuit 14, a reset circuit 16 that resets the alarm means drive circuit 14 by manual operation of the reset button 15 and stops driving the alarm means 13, and a tracking detection circuit 8 that receives the output signal of the self-holding circuit 10. A sensor cut-off circuit 17 that cuts off an input signal and a power supply circuit 18 that supplies power to each circuit are mounted. The LED 11 and the reset button 15 are provided on the surface of the insertion plug body 2, and the buzzer 12 is accommodated in the insertion plug body 2.

  In the plug 1 with a tracking detection function formed in this way, when a spark discharge occurs between the plug blades 4, 4, the spark discharge contacts the plug blade sensor 5 through the hole 2 a of the plug body 2. When a spark discharge contacts the inter-blade sensor 5, an electric current is generated and input to the tracking detection circuit 8 through the signal line 6. The detected signal is output from the tracking detection circuit 8 to determine whether it is tracking by the noise prevention delay circuit 9. The noise prevention time delay circuit 9 determines that tracking is not performed when the output signal of the tracking detection circuit 8 is less than a predetermined time, and determines that tracking is performed when the output signal of the tracking detection circuit 8 is equal to or longer than the predetermined time. If it is determined, the signal is output from the noise prevention delay circuit 9, and the self-holding circuit 10 self-holds the output signal of the noise prevention delay circuit 9. Then, the output signal of the self-holding circuit 10 is inputted to the alarm means driving circuit 14, and the alarm means driving circuit 14 turns on the LED 11 or sounds the buzzer 12 to notify the occurrence of tracking. The display of these LEDs 11 and the sound of the buzzer 12 are stopped when the reset button 15 is turned on and the reset circuit 16 resets the alarm means driving circuit 14. The signal output from the self-holding circuit 10 is also input to the sensor cutoff circuit 17, and the sensor cutoff circuit 17 blocks the signal input from the inter-blade sensor 5 to the tracking detection circuit 8 to protect the circuit. It is like that.

  In addition, by applying a plug with a built-in earth leakage breaker to the plug body 2, the cost can be reduced because it can be used as a member, and the outer dimensions of the plug can be incorporated almost unchanged. it can.

  Second Embodiment A plug with a tracking detection function according to a second embodiment of the present invention will be described with reference to the accompanying drawings of FIGS.

  For the plug 31 with tracking detection function, for example, an insertion plug body 32 is formed of a material having high tracking resistance such as phenol or PBT, and the insertion plug body 32 is provided with a separate body 49 in the middle via a power cord 33. And electrically connected to an electric device main body (not shown). The plug body 32 is internally provided with a pair of plug blades 34, 34 electrically connected to the power cord 33. A plug blade sensor 35 is provided on the plug body 32 between the plug blades 34, 34. It is communicated with the outside through a hole 32 a that is buried and formed in the plug body 32. The inter-blade sensor 35 is formed of a conductive material such as a metal piece, and is connected to a printed circuit board 37 accommodated in a separate body 49 via a signal line 36 wired in the power cord 33.

  The printed circuit board 37 includes a tracking detection circuit 38 to which a signal is input when the spark plug discharge sensor 35 is connected to detect spark discharge, and noise that outputs a signal when the output signal of the tracking detection circuit 38 is longer than a predetermined time. When the output signal of the self-holding circuit 40 is inputted, the alarm means 43 such as the LED 41 and the buzzer 42 is driven when the output signal of the self-holding circuit 40 is inputted. An alarm means drive circuit 44, a reset circuit 46 for resetting the alarm means drive circuit 44 by manual operation of the reset button 45 and stopping the drive of the alarm means 43, and a tracking detection circuit 38 in response to an output signal of the self-holding circuit 40 A sensor cut-off circuit 47 that cuts off the input signal to the circuit and a power supply circuit 48 that supplies power to each circuit and the alarm means 43 are mounted To have. The LED 41 and the reset button 45 are provided on the surface of the separate body 49, and the buzzer 42 is accommodated in the separate body 49.

  When a spark discharge is generated between the plug blades 34 and 34 in the plug 31 with the tracking detection function formed in this way, the spark discharge contacts the inter-blade sensor 35 through the hole 32a of the insertion plug main body 32. When a spark discharge contacts the inter-blade sensor 35, a current is generated and input to the tracking detection circuit 38 via the signal line 36. The detected signal is output from the tracking detection circuit 38, and it is determined by the noise prevention delay circuit 39 whether or not it is tracking. The noise prevention delay circuit 39 determines that tracking is not performed when the output signal of the tracking detection circuit 38 is less than a predetermined time, and determines that tracking is performed when the output signal of the tracking detection circuit 38 is longer than the predetermined time. If it is determined, the signal is output from the noise prevention delay circuit 39, and the self-holding circuit 40 self-holds the output signal of the noise prevention delay circuit 39. Then, the output signal of the self-holding circuit 40 is input to the alarm means driving circuit 44, and the alarm means driving circuit 44 turns on the LED 41 or sounds the buzzer 42 to notify the occurrence of tracking. The display of these LEDs 41 and the sounding of the buzzer 42 are stopped when the reset button 45 is turned on and the reset circuit 46 resets the alarm means drive circuit 44. The signal output from the self-holding circuit 40 is also input to the sensor cutoff circuit 47. The sensor cutoff circuit 47 blocks the signal input from the inter-blade sensor 35 to the tracking detection circuit 38 to protect the circuit. It is like that.

  The separate body 49 may be formed integrally with an intermediate switch or the like provided in the middle of the power cord 33. The intermediate switch is easily noticeable, so that it is easy to notice when using an alarm and is easy to use.

  A third embodiment of the plug with a tracking detection function according to the present invention will be described with reference to the attached drawings of FIGS.

  The plug 61 with a tracking detection function includes a plug plug body 62 made of a material having high tracking resistance such as phenol or PBT, and the plug plug body 62 is electrically connected via an electric device main body 80 and a power cord 63. It is connected to the. The plug body 62 is internally provided with a pair of plug blades 64, 64 electrically connected to the power cord 63, and a plug blade sensor 65 is provided on the plug body 62 between the plug blades 64, 64. It is communicated with the outside through a hole 62 a that is buried and formed in the plug body 62. The blade-to-blade sensor 65 is made of a conductive material such as a metal piece, and is connected to a printed board 67 accommodated in the electric device main body 80 via a signal line 66.

  The printed circuit board 67 includes a tracking detection circuit 68 to which a signal is inputted when a spark discharge is detected by connecting the blade-to-blade sensor 65, and noise that outputs a signal when the output signal of the tracking detection circuit 68 has exceeded a predetermined time. Prevention time delay circuit 69, self-holding circuit 70 that self-holds the output signal of noise prevention time delay circuit 69, and an alarm that drives alarm means 73 such as an LED or a buzzer when the output signal of self-holding circuit 70 is input. Means driving circuit 74, reset circuit 76 for resetting alarm means driving circuit 74 by manual operation of reset operating means 75 and stopping driving of alarm means 73, and tracking detection circuit 68 in response to the output signal of self-holding circuit 70 A sensor shut-off circuit 77 that shuts off the input signal to the circuit and a power circuit 78 that supplies power to each circuit and the alarm means 73 are mounted. .

  In the plug 61 with the tracking detection function formed in this way, when a spark discharge occurs between the plug blades 64, 64, the spark discharge contacts the plug blade sensor 65 through the hole 62 a of the insertion plug body 62. When a spark discharge comes into contact with the inter-blade sensor 65, a current is generated and input to the tracking detection circuit 68 via the signal line 66. Then, the detected signal is output from the tracking detection circuit 68, and it is determined by the noise prevention delay circuit 69 whether or not it is tracking. The noise prevention delay circuit 69 determines that tracking is not performed when the output signal of the tracking detection circuit 68 is less than a predetermined time, and determines that tracking is performed when the output signal of the tracking detection circuit 68 is equal to or longer than the predetermined time. If it is determined, the signal is output from the noise prevention delay circuit 69, and the self-holding circuit 70 self-holds the output signal of the noise prevention delay circuit 69. Then, the output signal of the self-holding circuit 70 is input to the alarm means driving circuit 74, and the alarm means driving circuit 74 operates the alarm means 73 to notify the occurrence of tracking. When the alarm means 73 turns on the reset operation means 75, the reset circuit 76 resets the alarm means drive circuit 74 and stops. The signal output from the self-holding circuit 70 is also input to the sensor cutoff circuit 77. The sensor cutoff circuit 77 blocks the signal input from the inter-blade sensor 65 to the tracking detection circuit 68 to protect the circuit. It is like that.

  By providing the alarm means 73 in the electric device main body 80 as described above, it is easy to notice when the alarm is activated, and is easy to use. In addition, a device provided with a display unit, a sound output unit, and an operation unit in the electric device main body 80 can also be used as the alarm unit 73 and the reset operation unit 75, and thus the manufacturing cost can be reduced.

  Embodiment 4 of the plug with a tracking detection function according to the present invention will be described with reference to the accompanying drawings of FIGS.

  The plug 91 with a tracking detection function forms the plug body 92 with a material having high tracking resistance such as phenol and PBT. The plug body 92 has a pair of plug blades 94 projecting from one side surface and a plurality of pair of plug blade insertion holes 111, 111 formed on the other side surface to constitute a power tap. A plug-to-blade sensor 95 is embedded in the plug body 92 between the plug blades 94, 94 to communicate with the outside through a hole 92 a formed in the plug body 92, and the plug blade insertion hole 111. , 111 is embedded between the insertion holes sensor 112 and communicates with the outside through a hole 92b formed in the insertion plug body 92. The inter-blade sensor 95 and the inter-insertion hole sensor 112 are made of a conductive material such as a metal piece, and are connected to a printed circuit board 97 accommodated in the insertion plug body 92 via a signal line 96.

  The printed circuit board 97 has a tracking detection circuit 98 to which a signal is input when a spark discharge is detected by connecting the plug edge sensor 95 and the insertion hole sensor 112, and the output signal of the tracking detection circuit 98 is longer than a predetermined time. In this case, the noise prevention delay circuit 99 that outputs a signal, the self-holding circuit 100 that self-holds the output signal of the noise prevention delay circuit 99, the LED 101, the buzzer 102, and the like when the output signal of the self-holding circuit 100 is input. Alarm means driving circuit 104 for driving the alarm means 103, a reset circuit 106 for resetting the alarm means driving circuit 104 by manual operation of the reset button 105 and stopping the driving of the alarm means 103, and an output signal of the self-holding circuit 100 Sensor cutoff circuit 107 that cuts off the input signal to tracking detection circuit 98 in response to the Implement a power supply circuit 108 supplies power to the broadcast unit 103. The LED 101 and the reset button 105 are provided on the surface of the insertion plug main body 92, and the buzzer 102 is accommodated in the insertion plug main body 92.

  In the plug 91 with a tracking detection function formed in this way, when a spark discharge occurs between the plug blades 94 and 94 or between the plug blade insertion holes 111 and 111, the spark discharge is generated in the holes 92 a and 92 b of the plug plug main body 92. The contact between the plug blade sensor 95 or the insertion hole sensor 112 is made. When a spark discharge contacts the inter-blade sensor 95 or the inter-insertion hole sensor 112, an electric current is generated and input to the tracking detection circuit 98 via the signal line 96. The detected signal is output from the tracking detection circuit 8 to determine whether it is tracking by the noise prevention delay circuit 99. The noise prevention delay circuit 99 determines that tracking is not performed when the output signal of the tracking detection circuit 98 is less than a predetermined time, and determines that tracking is performed when the output signal of the tracking detection circuit 98 is equal to or longer than the predetermined time. If it is determined, the signal is output from the noise prevention delay circuit 99, and the self-holding circuit 100 self-holds the output signal of the noise prevention delay circuit 99. Then, the output signal of the self-holding circuit 100 is inputted to the alarm means driving circuit 104, and the alarm means driving circuit 104 turns on the LED 101 or sounds the buzzer 102 to notify the occurrence of tracking. The display of these LEDs 101 and the sounding of the buzzer 102 are stopped when the reset button 105 is turned on and the reset circuit 106 resets the alarm means drive circuit 104. The signal output from the self-holding circuit 100 is also input to the sensor shut-off circuit 107. The sensor shut-off circuit 107 receives the signals input to the tracking detection circuit 98 from the plug-blade sensor 95 and the plug-hole sensor 112. It cuts off and protects the circuit.

  In addition, although the plug blade insertion holes 111 and 111 are provided in the front surface of the insertion plug main body 92, you may provide in a side surface and you may provide in both a front surface and a side surface. Further, a plurality of LEDs 101 may be provided in correspondence with the plug blades 94 and 94 and the plug blade insertion holes 111 and 111 so that the tracking occurrence location can be seen.

  A fifth embodiment of the plug with a tracking detection function according to the present invention will be described with reference to the accompanying drawings of FIGS.

  The plug 121 with the tracking detection function is formed of an insertion plug body 122 made of a material having high tracking resistance such as phenol or PBT, and the insertion plug body 122 is electrically connected to one end of the power cord 123 inside. A pair of plug blades 124 and 124 are projected, and the other end of the power cord 123 is electrically connected to the outlet body 140 in which a plurality of plug blade insertion holes 141 and 141 are formed to constitute a power tap. is doing. The plug plug main body 122 communicates with the outside through a hole 122 a formed in the plug plug main body 122 with a plug blade sensor 125 embedded between the plug blades 124 and 124. The outlet body 140 communicates with the outside through a hole 140 a formed in the outlet body 140 with a plug-to-hole sensor 142 embedded between the plug blade insertion holes 141 and 141. The inter-blade sensor 125 and the inter-insertion hole sensor 142 are formed of a conductive material such as a metal piece, and are connected to a printed circuit board 127 accommodated in the outlet body 140 via a signal line 126 wired in the power cord 123. ing.

  The printed circuit board 127 includes a tracking detection circuit 128 to which a signal is input when the spark-blade sensor 125 is connected to detect a spark discharge, and noise that outputs a signal when the output signal of the tracking detection circuit 128 has exceeded a predetermined time. When the output signal from the self-holding circuit 130 is input, the alarm means 133 such as the LED 131 and the buzzer 132 is driven. An alarm means driving circuit 134, a reset circuit 136 that resets the alarm means driving circuit 134 by manual operation of the reset button 135 and stops driving the alarm means 133, and a tracking detection circuit 128 that receives the output signal of the self-holding circuit 130. Sensor shut-off circuit 137 for shutting off the input signal to the circuit, each circuit and alarm means 133 Implement a power supply circuit 138 supplies power. The LED 131 and the reset button 135 are provided on the surface of the outlet body 140, and the buzzer 132 is accommodated in the outlet body 140.

  When a spark discharge is generated between the plug blades 124, 124, the plug 121 with the tracking detection function formed in this way contacts the plug blade sensor 125 through the hole 122a of the plug plug body 122, When a spark discharge occurs between the plug blade insertion holes 141 and 141, the spark discharge contacts the sensor 142 between the insertion holes through the hole 140 a of the outlet body 140. When a spark discharge comes in contact with the inter-blade sensor 125 or the inter-insertion hole sensor 142, an electric current is generated and input to the tracking detection circuit 128 via the signal line 126. The detected signal is output from the tracking detection circuit 128 and the noise prevention delay circuit 129 determines whether or not it is tracking. The noise prevention delay circuit 129 determines that tracking is not performed when the output signal of the tracking detection circuit 128 is less than a predetermined time, and determines that tracking is performed when the output signal of the tracking detection circuit 128 is equal to or longer than the predetermined time. If it is determined, the signal is output from the noise prevention delay circuit 129, and the self-holding circuit 130 self-holds the output signal of the noise prevention delay circuit 129. Then, the output signal of the self-holding circuit 130 is input to the alarm means driving circuit 134. The alarm means driving circuit 134 turns on the LED 131 or sounds the buzzer 132 to notify the occurrence of tracking. The display of these LEDs 131 and the sounding of the buzzer 132 are stopped by resetting the alarm means driving circuit 134 by the reset circuit 136 when the reset button 135 is turned on. The signal output from the self-holding circuit 130 is also input to the sensor shut-off circuit 137. The sensor shut-off circuit 137 receives the signal input to the tracking detection circuit 128 from the inter-blade sensor 155 or the inter-insertion hole sensor 142. It cuts off and protects the circuit.

  A plurality of LEDs 101 may be provided in correspondence with the plug blades 124 and 124 and the plug blade insertion holes 141 and 141 so that the tracking occurrence location can be seen. In this embodiment, the printed circuit board 127 on which the circuit is mounted and the alarm means 133 are provided in the outlet body 140, but may be provided in the insertion plug body 122, or may be provided in both the insertion plug body 122 and the outlet body 140. It may be configured to operate by detecting tracking individually, and can be appropriately changed without departing from the gist of the present invention.

It is a perspective view which shows the insertion plug of the plug with a tracking detection function which concerns on Example 1 of this invention. It is a longitudinal cross-sectional view of FIG. It is a block diagram of a plug with a tracking detection function concerning Example 1 of the present invention. It is a perspective view which shows the insertion plug of the plug with a tracking detection function which concerns on Example 2 of this invention. It is a longitudinal cross-sectional view of FIG. It is a block diagram of the plug with a tracking detection function which concerns on Example 2 of this invention. It is a perspective view which shows the insertion plug of the plug with a tracking detection function which concerns on Example 3 of this invention. It is a block diagram of the plug with a tracking detection function which concerns on Example 3 of this invention. It is a perspective view which shows the insertion plug of the plug with a tracking detection function which concerns on Example 4 of this invention. FIG. 10 is a longitudinal sectional view of FIG. 9. It is a block diagram of the plug with a tracking detection function which concerns on Example 4 of this invention. It is a perspective view which shows the insertion plug of the plug with a tracking detection function which concerns on Example 5 of this invention. It is a longitudinal cross-sectional view of FIG. It is a block diagram of a plug with a tracking detection function concerning Example 5 of the present invention.

Explanation of symbols

1 Plug with tracking detection function 2 Plug body 4 Plug blade 5 Sensor between plug blades 7 Printed circuit board 11 LED
12 Buzzer 13 Alarm means

Claims (5)

  In a plug with a tracking detection function provided with a plug blade sensor that detects spark discharge between the plug blades of the plug body that is inserted and connected to a power outlet, tracking occurs when the plug blade sensor detects spark discharge. A plug with a tracking detection function, characterized in that alarm means for notifying is provided in the plug plug body.   In a plug with a tracking detection function provided with an inter-blade sensor for detecting spark discharge between the plug blades of the plug body to be inserted and connected to a power outlet, the plug body is separated in the middle via a power cord. Provide a signal line for transmitting the sensor detection signal in the power cord between the plug body and the separate body, and connect the electrical equipment body, and the plug blade sensor generates a spark discharge. A plug with a tracking detection function, characterized in that an alarm means for notifying the occurrence of tracking upon detection is provided in the separate body.   In a plug with a tracking detection function provided with a plug blade sensor that detects spark discharge between plug blades of the plug plug body that is inserted and connected to a power outlet, the plug plug body is connected to the electrical device body via a power cord. In addition, a signal line for transmitting the sensor detection signal is wired in the power cord between the plug main body and the electric device main body, and tracking is performed when the inter-blade sensor detects a spark discharge. A plug with a tracking detection function, characterized in that alarm means for notifying occurrence is provided in the electric device main body.   In the plug with tracking detection function provided with a plug blade sensor that detects spark discharge between the plug blades of the plug plug body to be inserted and connected to a power outlet, the plug plug body is provided with a plurality of plug blade insertion holes. A power tap is configured, and an inter-insertion hole sensor for detecting spark discharge is provided between the plug blade insertion holes, and when at least one of the plug blade sensor or the inter-insertion hole sensor detects spark discharge A plug with a tracking detection function, characterized in that alarm means for notifying the occurrence of tracking is provided in the plug body.   In a plug with a tracking detection function provided with a plug-blade sensor for detecting spark discharge between plug blades of the plug plug body to be inserted and connected to a power outlet, the plug plug body is connected to a plurality of plug blades via a power cord. A power tap is configured by connecting to an outlet body having an insertion hole, and an inter-insertion hole sensor for detecting spark discharge is provided between the plug blade insertion holes of the outlet body. A plug with a tracking detection function, wherein alarm means for notifying the occurrence of tracking when at least one of the inter-hole sensors detects spark discharge is provided on at least one side of the plug-in plug body or the outlet body.

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