JPH05322956A - Continuity check between double-pole wall outlet with grounding terminal - Google Patents

Abstract

PURPOSE:To check continuity by fitting a double-pole power supply plug with grounding pole incorporating a battery and a double-pole display plug with grounding pole incorporating an LED in two double-pole wall outlets with grounding pole of a single phase three-wire system wiring. CONSTITUTION:When the expansion of a double-pole wall outlet 19 with grounding pole is completed and the connection state is inspected, a double-pole display plug 15 with grounding pole is inserted into it and a double-pole power supply plug 5 with grounding pole is inserted into the double-pole wall outlet 9 with grounding pole. Current which returns to a battery 4 via a wiring 21, an LED 13, and a wiring 20 from the battery 4 flows to an LED 13 and then current which returns to a battery 3 via the battery 3, the wiring 20, and an LED 12 flows to the LED 12. Also, the current which returns to the battery 4 via the wiring 21, an LED 14, the wiring 22, and the battery 3 from the battery 4 flows to the LED 14. Therefore, when neither improper wiring nor continuity failure is found in all of the wirings 20, 21, and 22 and the wall outlet 19, all diodes 12, 13, and 14 light up or a failed part can be estimated from a diode which does not light up.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a continuity checker for connecting two-pole outlets with a ground terminal for checking continuity between two-pole outlets with a ground terminal connected to single-phase three-wire wiring.

[0002]

2. Description of the Related Art FIG. 5 is a circuit diagram showing a continuity test method between two-pole outlets with ground terminals connected to conventional single-phase three-wire wiring, and FIG. 6 is a ground connected to conventional single-phase three-wire wiring. It is a circuit diagram which shows the continuity test method in case the wiring distance between the two-pole outlets with terminals is long.

When connecting a two-pole outlet with a ground terminal to the single-phase three-wire type wiring, as shown in FIG.
Is connected to the voltage terminal 26 of the two-pole outlet 9 with a ground terminal, the electric wiring 21 is connected to the ground side voltage terminal 25, and the electric wiring 22 is connected to the ground terminal 27.

When a two-pole outlet 19 with a ground terminal is further added to such an electric wiring, similarly, the voltage terminal 29 of the two-pole outlet 19 with a ground terminal is connected to the electric wiring 20, and the electric wiring 21 is connected. Connect the ground side voltage terminal 28,
The ground terminal 30 is connected to the electric wiring 22.

At this time, it is necessary to check the connection state because there should be no incorrect wiring.

As shown in FIG. 5, the conventional check of the connection state of two grounded terminal-equipped two-pole outlets (outlet) after connection is shown in FIG. The test pins are contacted and tested for conduction between them.

[0007]

According to the conventional method for checking the connection state of the two-pole outlet with the ground terminal as described above, the distance between the two-pole outlet 9 with the ground terminal and the additional two-pole outlet 19 with the ground terminal is If it is long, as shown in FIG. 6, the test lead that is always provided in the tester 23 is insufficient in length, and thus there is a drawback that a long extension cable 24 is required. In addition, when an outlet is added to the adjacent room, it is difficult to use the extension cable 24 to check the wiring between the outlets because the space between the two rooms is partitioned by a wall. I also have.

[0008]

According to the present invention, there is provided a continuity checker for connecting two-pole outlets with a grounding terminal, wherein a voltage pole, a grounding side voltage pole, a grounding pole, and a positive pole are connected to the voltage pole. A two-pole power plug with a grounding electrode having a first battery having a negative electrode connected thereto and a second battery having a positive electrode connected to the ground side voltage electrode and a negative electrode connected to the grounding electrode, a voltage electrode, and a ground A side voltage electrode, a ground electrode, a first light emitting diode in which an anode is connected to the voltage electrode and a cathode is connected to the ground electrode, and an anode is connected to the ground side voltage electrode and a cathode is connected to the ground electrode. A two-pole display plug with a ground electrode having a second light emitting diode and a third light emitting diode having an anode connected to the voltage electrode and a cathode connected to the ground side voltage electrode.

[0009]

Embodiments of the present invention will now be described with reference to the drawings.

FIG. 1 is a circuit diagram showing an embodiment of the present invention, FIG. 2 is a circuit diagram showing an equivalent circuit when the embodiment of FIG. 1 is attached to a two-pole outlet with a ground terminal, and FIG. FIG. 4 is a circuit diagram showing the operation of the embodiment of FIG. 1 in a certain case, and FIG. 4 is a circuit diagram showing the operation of the embodiment of FIG. 1 when there is a conduction failure.

The embodiment of FIG. 1 comprises two plugs, a two-pole power plug 5 with a ground electrode and a two-pole display plug 15 with a ground electrode.

The two-pole power plug 5 with a grounding electrode is inserted into a two-pole outlet 9 with a grounding terminal and is connected to the voltage terminal 26 of the voltage electrode 8 and the grounding side voltage terminal 25 to be connected to the grounding side voltage electrode 1. A two-pole plug 7 with a ground terminal having a ground electrode 2 connected to the terminal 27, a first battery 4 having a positive electrode connected to the voltage electrode 8 and a negative electrode connected to the ground side voltage electrode 1 and the ground side voltage electrode 1 A second battery 3 having a positive electrode connected to it and a ground electrode 2 connected to a negative electrode.

The two-pole display plug 15 with a ground electrode is inserted into a two-pole outlet 19 with a ground terminal and connected to the voltage terminal 29 of the voltage pole 18 and the ground side voltage terminal 11 connected to the ground side voltage terminal 28 and the ground. A bipolar plug 17 with a grounding terminal having a grounding electrode 12 connected to the terminal 230, a first light emitting diode 14 having an anode connected to the voltage electrode 18 and a cathode connected to the grounding electrode 11, and an anode to the grounding side voltage electrode 10. Connect and ground pole 11
Second light-emitting diode 12 and voltage electrode 1 with cathode connected to
And a display portion 16 having a third light emitting diode 13 having an anode connected to 8 and a cathode connected to the ground side voltage electrode 10.

Next, the usage of the conductivity checker between the two-pole outlets with the ground terminal constructed as described above will be described with reference to FIGS.
This will be described with reference to FIG.

When the addition of the two-pole outlet 19 with a ground terminal is completed and the connection state is checked, the two-pole power plug 5 with a ground electrode is inserted into the two-pole outlet 9 with a ground terminal, and the two-pole outlet with a ground terminal is inserted. Insert the bipolar display plug 15 with the ground electrode into the outlet 19. This causes current to flow from the batteries 4 and 3.

The flow of current at this time is, as shown in FIG. 2, for the light emitting diode 13, a path for returning from the battery 4 to the battery 4 via the electric wiring 21, the light emitting diode 13 and the electric wiring 20. Become. Light emitting diode 12
, The route from the battery 3 returns to the battery 3 via the electric wiring 20, the light emitting diode 12, and the electric wiring 22. For the light emitting diode 14, it is a path from the battery 4 back to the battery 4 via the electric wiring 21, the light emitting diode 14, the electric wiring 22, and the battery 3.
Therefore, when there is no erroneous wiring or defective conduction in the connection between the electric wirings 20 and 21 and 22 and the two-pole outlet 19 with a ground terminal, all the light emitting diodes 12, 13 and 14 are turned on.

If there is an incorrect wiring in the connection between the electric wirings 20, 21 and 22 and the two-pole outlet 19 with a ground terminal, for example, when the wirings are connected as shown in FIG. Since the voltage is applied in reverse via the electric wiring 21, the light emitting diode 13 does not light up.

When the electrical wirings 20 and 21 and 22 and the two-pole outlet 19 with a ground terminal have poor continuity of connection, for example, as shown in FIG. Since the electric circuit of is cut off, the light emitting diodes 13 and 14 do not light.

The same is true when there is miswiring or poor continuity in other parts, and all the light emitting diodes 12 and 1 are provided only when all connections are normal and there is no poor continuity.
3 and 14 are lit.

[0020]

As described above, the continuity checker for connecting two-pole outlets with a grounding terminal according to the present invention is a two-pole power supply plug with a grounding electrode containing a battery and a two-pole display plug with a grounding electrode containing a light emitting diode. By installing a two-pole outlet with a grounding terminal connected to the single-phase three-wire wiring, by attaching a two-pole power plug with a grounding electrode to one of the two, and by attaching a two-pole display plug with a grounding electrode to the other, There is an effect that you can easily check for incorrect wiring and poor continuity, and even if the distance between two outlets is long, you do not need an extension cord, so between outlets in two rooms partitioned by a wall The wiring can be easily checked.

[Brief description of drawings]

FIG. 1 is a circuit diagram showing an embodiment of the present invention.

FIG. 2 is a circuit diagram showing an equivalent circuit when the embodiment of FIG. 1 is attached to a two-pole outlet with a ground terminal.

FIG. 3 is a circuit diagram showing the operation of the embodiment of FIG. 1 in the case of incorrect wiring.

FIG. 4 is a circuit diagram showing an operation of the embodiment of FIG. 1 when there is a conduction failure.

FIG. 5 is a circuit diagram showing a conventional continuity test method between two-pole outlets with ground terminals connected to single-phase three-wire wiring.

FIG. 6 is a circuit diagram showing a continuity test method when a wiring distance between two-pole outlets with ground terminals connected to conventional single-phase three-wire wiring is long.

[Explanation of symbols]

 1-10 Grounding side voltage pole 2/11 Grounding pole 3.4 Battery 5 Bipolar power supply plug with grounding pole 6 DC power supply section 7 Double pole plug with grounding terminal 8/18 Voltage pole 9/19 Double pole outlet with grounding terminal 12・ 13 ・ 14 Light emitting diode 15 ・ 17 Two pole display plug with grounding electrode 16 Display section 20 ・ 21 ・ 22 Electric wiring 23 Tester 24 Extension cable 25 ・ 28 Ground side voltage terminal 26 ・ 29 Voltage terminal 27 ・ 30 Ground terminal

Claims (2)

[Claims] 1. A voltage electrode, a ground-side voltage electrode, a ground electrode,
A ground having a first battery having a positive electrode connected to the voltage electrode and a negative electrode connected to the ground side voltage electrode, and a second battery having a positive electrode connected to the ground side voltage electrode and a negative electrode connected to the ground electrode Two-pole power plug with a pole, a voltage pole, a ground side voltage pole, a ground pole, a first light emitting diode in which an anode is connected to the voltage pole and a cathode is connected to the ground pole, and the ground side voltage pole A second light-emitting diode having an anode connected to and a cathode connected to the ground electrode, and a third light-emitting diode having an anode connected to the voltage electrode and a cathode connected to the ground-side voltage electrode A polarity check plug between two-pole outlets with a ground terminal, comprising a pole display plug. 2. A two-pole power plug with a ground electrode having a voltage electrode, a ground side voltage electrode, and a ground electrode; a first battery in which a positive electrode is connected to the voltage electrode and a negative electrode is connected to the ground side voltage electrode; and A two-pole power plug with a grounding electrode, which includes a DC power supply unit having a second battery in which a positive electrode is connected to the grounding side voltage electrode and a negative electrode is connected to the grounding electrode, and a voltage pole, a grounding side voltage pole and a grounding electrode A bipolar power plug having a ground electrode, a first light emitting diode in which an anode is connected to the voltage electrode and a cathode is connected to the ground electrode, and an anode is connected to the ground side voltage electrode and a cathode is connected to the ground electrode. A second light-emitting diode and a display unit having a third light-emitting diode in which an anode is connected to the voltage electrode and a cathode is connected to the ground-side voltage electrode, and a bipolar display plug with a ground electrode, Characteristic ground terminal Bipolar electrical outlet between the conduction checker.