JP4656694B2 - Branch circuit connection check device for distribution board - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a connection check device and method for a branch circuit of a distribution board.
[0002]
[Prior art]
Conventionally, in the completion inspection of electrical installation work for buildings, the wiring connection check on the load side of the distribution board is divided into a distribution board and a connection wiring terminal, and each wiring breaker circuit is called for each circuit. Was actually checking whether it was connected to the designated branch breaker while turning on electricity.
[0003]
[Problems to be solved by the invention]
However, for example, when a building is an apartment house and there are many distribution boards installed, it is very time-consuming and manual to check the wiring connection of branch breakers for each distribution board. It was work that took. In order to solve the above-mentioned problems, the present invention can check the connection between the branch breaker and the wiring terminal by one person for the wiring connected to the distribution board, and the check device that can save labor in an apartment house or the like. It is intended to provide a method.
[0004]
[Means for solving problems]
[0005]
In order to achieve the above object, according to the present invention, a check device according to claim 1 is a distribution board having a plurality of branch breakers installed in a building and wired, and a wiring terminal such as an outlet or a lighting fixture. With regard to the connection to the outlet, turn off the handle of the branch breaker to see if the wiring terminals such as outlets and lighting fixtures are connected to the specified branch breaker, and disconnect the wires below the load terminal of the branch breaker from the power supply side wiring It is a device for checking in a state , and the device is connected to each wiring terminal connector such as the outlet or the luminaire specified to be connected corresponding to each branch breaker. an impedance circuit which is a combination of diode means in series or in parallel with and connected to the load side terminal portion of the branch breakers, said impedance Switching to connect the circuit for measuring determining the resistance of the resistors in the road, to the circuit having a lamp for discriminating the polarity of the diode means, the wiring connected to the battery while selecting these circuits alternatively And measuring the resistance value of the impedance circuit and the polarity of the diode connected to each pole terminal of each wiring terminal by aligning the polarity of the diode with the measuring device. Therefore, it is possible to determine whether or not the outlet and the lighting fixture are correctly connected to the designated branch breaker.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0007]
FIG. 1 shows a first embodiment of the check device of the present invention. In FIG. 1, 1 is a distribution board, 2 to 4 are a plurality of branch breakers, 8 to 10 are wires, and 11 to 13 are outlets installed at the terminals of the wires and wiring terminal connectors such as lighting fixtures. The specified wiring diagram specifies which outlets and lighting fixtures are connected to each branch breaker. After the construction is completed, 11 to 13 are correctly connected to 2 to 4 branch breakers, respectively. Need to be.
[0008]
Reference numerals 14 to 16 denote impedance circuits that can be attached to and detached from the wiring terminal connectors 11 to 13 such as the respective outlets and lighting fixtures. The impedance circuit is connected to each wiring terminal connector such as the outlet and the lighting fixture connected to each branch breaker. The value has been changed. Reference numeral 17 denotes a measuring instrument having an impedance measuring circuit.
[0009]
When checking the connection, you can work alone as follows. First, the branch breakers 2 to 4 are cut off from the handle, and the wiring on the load side terminals 5 to 7 and below of the branch breaker is disconnected from the power supply side wiring 18. Next, it moves to the wiring terminals 11-13 side. Then connect the impedance circuit of 14-16 to the wiring terminal connector such as each outlet or lighting fixture, connect the measuring device to the load side terminal portion 5-7 of each branch breaker, and measure the impedance of the impedance circuit Based on the impedance value, the branch breaker to which the wiring to which the impedance circuit is connected is connected is checked.
[0010]
FIG. 2 shows a second embodiment according to the present invention. In FIG. 2, the parts with the same symbols as in FIG. 1 are the same as those already described in FIG. Reference numerals 20 to 22 denote combinational circuits including resistors 201, 211, and 221 and diode means 202, 212, and 222. The resistance values of the resistors 201 to 221 are different from each other. 24 is a measuring instrument comprising a resistance value measuring circuit 242, a polarity determining circuit 243, and a changeover switch 241, and the checking method is substantially the same as the apparatus shown in FIG. 1, but first, the changeover switch 241 is set to the a side. In the resistance value measurement circuit side, the resistance value to which the wiring is connected is measured, the connection check between the branch breaker and the wiring terminal is performed, and then the changeover switch 241 is set to the b side, By switching to the judgment circuit side and checking whether the lamp is lit, the electric wire on the power supply side of the wiring terminal is correctly connected to the pole on the power supply side of the branch breaker (the left pole of the wiring terminal connector is Connected to the left pole of the branch breaker). If the polarities of the diode means 202 to 222 are aligned on a constant basis with respect to the left and right directions of the terminals of the branch breakers 2 to 4, the connection polarity can be reliably determined.
[0011]
FIG. 3 shows another example of a combination circuit of 20 to 22 resistors and diode means, in which a resistor 251 and a diode means 252 are connected in series.
[0012]
FIG. 4 shows an example of the measuring instrument 26 in the case where the resistor and the diode means are shown in FIG. 3. The changeover switch 261, the resistance value measuring circuit 262, the polarity discriminating circuit (lamp in this example) 263, and the battery 264 are as shown in the figure. Connected. In this case, the resistance value measuring circuit 262 is configured to measure the resistance value with the flowing current value.
[0013]
【The invention's effect】
As described above, according to the present invention, a measurement lead wire of an impedance circuit or a combination circuit of a resistor and a diode means is connected to a wiring terminal such as an outlet or a lighting fixture, and a load terminal of a branch breaker of a distribution board From the side, each circuit can be checked in turn by one person by measuring the impedance or resistance value of the circuit with the impedance circuit connected by the measuring instrument or the resistor and diode means. There is an effect that the connection circuit can be easily checked without much manpower.
[0014]
In addition, by connecting the measurement lead wires of the impedance circuit or the combination circuit of the resistor and the diode means to the wiring terminal side such as an outlet or a lighting fixture, the operator can perform the measurement by the measuring device all together on the distribution board side. This has the effect of saving the trouble of moving to each wiring terminal with a measuring instrument and grasping the status of all wiring connections in one place.
[0015]
Furthermore, if the connection polarity of the diode by the diode means is checked with a measuring instrument, it is possible to easily check the connection polarity between the wiring and the breaker terminal.
[Brief description of the drawings]
FIG. 1 is a diagram of a first embodiment according to the present invention. FIG. 2 is a diagram of a second embodiment according to the present invention. FIG. 3 is a diagram of another embodiment of a resistor and a diode means. Figure of another example of [Explanation of symbols]
1 Distribution board 2, 3, 4 Branch breaker 5, 6, 7 Branch breaker load side terminals 8, 9, 10 Wiring 11, 12, 13 Wiring terminal outlets 14, 15, 16 Impedance circuit 17 Measuring instrument 20, 21, 22, 25 Combination circuit 201, 211, 221, 251 Resistor 202, 212, 222, 252 Diode unit 24, 26 Measuring device 241, 261 Changeover switch 242, 262 Resistance measurement circuit 243, 263 polarity discrimination circuit

Claims (1)

For connection between a distribution board equipped with a plurality of branch breakers installed in a building and wired, and wiring terminals such as outlets and lighting fixtures. It is a device that checks whether it is connected to the breaker by cutting the branch breaker handle and disconnecting the wiring below the load terminal of the branch breaker from the power supply side wiring ,
The device
An impedance circuit in which resistors having different resistance values and diode means are combined in series or in parallel, which are connected to each wiring terminal connector such as the outlet or lighting fixture, the connection of which is specified corresponding to each branch breaker ; ,
Wherein connected to the load side terminal portion of the branch breakers,
A circuit for measuring determining the resistance value of the resistor in the impedance circuit, the circuit comprising a ramp to determine the polarity of the diode means, selectively connected to the wiring connected to the battery while selecting these circuits a measuring device that includes a changeover switch which consists,
By the measuring instrument,
By measuring the resistance value of the impedance circuit and the polarity of the diode connected to each pole terminal of each wiring terminal with the same polarity of the diode , the outlet and the lighting fixture are correctly connected to the designated branch breaker. A branch circuit connection check device for distribution boards that makes it possible to judge whether or not

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