JP2001333514A - Checking device for branch circuit connection in distribution board - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a checking device that enables saving labor for checking the connection between a distribution board and wiring. SOLUTION: A distribution board provided with a plurality of branching breakers and wiring terminals, such as outlets and luminaires, are installed and connected with each other in a building. Circuits, obtained by combining resistors of different resistance values and diode means, are connected detachably with the individual wiring terminal, such as outlets and luminaires, on a branching breaker by branching breaker basis. A measuring instrument provided with a circuit for measuring and judging the resistance value of the corresponding resistor and a circuit for judging the polarity of the corresponding diode means is detachably connected with the load-side terminal portion of each branching breaker. Based on the results of the measurement of resistance values and the judgment of the polarity of the diodes by the measuring instruments connected with the load-side terminal portions of the branching breakers, it is judged as to whether the outlets and the luminaires are connected with the specified branching breakers.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus and a method for checking connection of a branch circuit of a distribution board.

[0002]

2. Description of the Related Art Conventionally, in the completion inspection of the electrical equipment construction of a building, a wiring connection check on a load side of a distribution board is divided into a distribution board and connection wiring terminals, and voices are sent to each branch breaker circuit. While checking each other, it was checked whether each wiring was connected to the designated branch breaker while actually turning on electricity.

[0003]

However, for example, if the building is an apartment house and the number of distribution boards installed is large, the wiring connection of the branch breaker must be checked for all of the distribution boards. Was a very time-consuming and labor-intensive task. SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a check device that can perform a connection check between a branch breaker and a wiring terminal by itself for wiring connected to a distribution board, and can save labor in an apartment house or the like. And a method.

[0004]

According to the present invention, in order to achieve the above object, a check device according to claim 1 is provided with a distribution board provided with a plurality of branch breakers, which is installed in a building and is wired. Regarding connection with wiring terminals such as outlets and lighting fixtures, wiring terminals such as outlets and lighting fixtures,
For each branch breaker, an impedance circuit having a different value is detachably connected, and a measurement lead wire of a measuring instrument having a circuit for measuring the impedance is connected to a load-side terminal of the branch breaker, and a wiring terminal is connected. It is possible to judge whether the outlet or the lighting fixture is correctly connected to the designated branch breaker from the measurement result of the impedance connected to the branch breaker.

According to a second aspect of the present invention, there is provided a check device for connecting a distribution board provided with a plurality of branch breakers, which is installed in a building and wiring work, to a wiring terminal such as an outlet or a lighting fixture. And wiring terminals such as lighting fixtures, for each branch breaker, a circuit in which a resistor and a diode means having different resistance values are combined is detachably connected, and the load-side terminal of the branch breaker is connected to the resistor. Connect the measurement lead wire of a measuring instrument equipped with a circuit for measuring and determining the resistance value and a circuit for determining the polarity of the diode means,
From the measurement result of the resistance value of the measuring instrument connected to the wiring terminal and the result of determining the polarity of the diode,
This makes it possible to determine whether or not the connection is correctly connected to the designated branch breaker.

[0006]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 1 shows a first embodiment of a check device according to the present invention. In FIG. 1, 1 is a distribution board, 2 to 4 are a plurality of branch breakers, 8 to 10 are wirings, and 11 to 13 are wiring terminal connectors such as outlets and lighting fixtures installed at terminals of the wiring, and Which outlet and lighting equipment are connected to each branch breaker is specified by the prescribed wiring diagram, and after completion of the construction, 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 detachable from the wiring terminal connectors 11 to 13 such as outlets and lighting fixtures. Each of the impedance circuits is connected to each branch breaker. The value of each impedance is changed. Reference numeral 17 denotes a measuring instrument provided with an impedance measuring circuit.

At the time of the connection check, work can be performed by one person as follows. First, the handle of each of the branch breakers 2 to 4 is turned off, and the wiring of the load side terminals 5 to 7 or less of the branch breaker is disconnected from the power supply side wiring 18. Next, the wiring terminals 11 to
Move to 13 side. Thereafter, 14 to 16 impedance circuits are connected to wiring terminal connectors such as outlets and lighting fixtures, and measuring instruments are connected to the load side terminals 5 to 7 of each branch breaker, and the impedance of the impedance circuit is measured. The connection is checked by determining to which branch breaker the wiring to which the impedance circuit is connected is connected based on the impedance value.

FIG. 2 shows a second embodiment according to the present invention. In FIG. 2, the same reference numerals as those in FIG. 1 are the same as those already described in FIG. 20
22 is a combinational circuit composed of resistors 201, 211, 221 and diode means 202, 212, 222.
The resistance values of the resistors 01 to 221 are different values. 24 is a resistance value measurement circuit 242 and a polarity determination circuit 2
This is a measuring instrument comprising 43 and a changeover switch 241. The checking method is almost the same as that of the apparatus shown in FIG. 1, but first, the changeover switch 241 is set to the side a, and the resistance value measurement circuit side is set. The resistance value to which the wiring is connected is measured, and the connection between the branch breaker and the wiring terminal is checked. Then, the changeover switch 241 is set to the side b, the mode is switched to the polarity determination circuit side, and the lamp is turned on. Check that the 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 ). Diode means 202-22
If the two polarities are aligned on the basis of a fixed reference 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.

FIG. 3 shows another embodiment 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.

FIG. 4 shows an example of the measuring device 26 in the case where the resistor and the diode means are as shown in FIG. 3, and the changeover switch 261, the resistance value measuring circuit 262, and the polarity discriminating circuit (a lamp in this example).
263 and a battery 264 are connected as shown. In this case, the resistance value measuring circuit 262 is configured to measure the resistance value with the flowing current value.

[0013]

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 distribution board is connected. From the load terminal side of the branch breaker, measure the impedance or resistance value of the circuit by means of an impedance circuit to which the wiring is connected by a measuring instrument, or a resistor and diode means.
There is an effect that each circuit can be checked in order by one person, and the connected circuit can be easily checked without much labor for the check operation.

Further, by connecting the measurement lead wire of an impedance circuit or a combination circuit of a resistor and a diode means to a wiring terminal side such as an outlet or a lighting fixture, the operator can perform measurement by the measuring instrument on the distribution board side. This can be performed collectively, and there is an effect that the trouble of moving to each wiring terminal with a measuring instrument can be omitted, and the status of all wiring connections can be grasped at one place.

Further, if the connection polarity of the diode by the diode means is checked with a measuring instrument, the connection polarity between the wiring and the breaker terminal can be easily checked.

[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 diode means.

FIG. 4 is a diagram of another embodiment of the measuring instrument.

[Explanation of symbols]

1 Distribution board 2, 3, 4 Branch breaker 5, 6, 7 Load side terminal of branch breaker 8, 9, 10 Wiring 11, 12, 13 Outlet of wiring terminal, etc. 14, 15, 16 Impedance circuit 17 Measuring instrument 20, 21, 22, 25 Combination circuit of resistor and diode means 201, 211, 221, 251 Resistor 202, 212, 222, 252 Diode means 24, 26 Measuring device 241, 261 Changeover switch 242, 262 Resistance value measuring circuit 243, 263 polarity discrimination circuit

Claims (2)

[Claims] The present invention relates to a connection between a distribution board having a plurality of branch breakers installed in a building and wiring work and a wiring terminal such as an outlet or a lighting fixture. For each branch breaker, an impedance circuit having a different value is detachably connected, and a load lead terminal of the branch breaker is connected to a measurement lead wire of a measuring instrument having a circuit for measuring the impedance. A branch circuit connection check device and method for a distribution board, which can determine whether an outlet or a lighting fixture is correctly connected to a specified branch breaker based on a measurement result of impedance connected to a wiring terminal. 2. A connection between a distribution board having a plurality of branch breakers installed in a building and wiring work and a wiring terminal such as an outlet or a lighting fixture. For each branch breaker, a circuit in which a resistor and a diode means each having a different resistance value are combined is detachably connected, and the load side terminal of the branch breaker is
The measurement lead wire of the measuring instrument provided with a circuit for measuring and judging the resistance value of the resistor and the circuit for judging the polarity of the diode means is connected, and the measurement result of the resistance value of the measuring instrument connected to the wiring terminal and the diode A branch circuit connection check device and method for a distribution board, which is capable of determining whether an outlet or a lighting fixture is correctly connected to a specified branch breaker based on a result of polarity determination.