JP2584464C - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to the correctness of indoor wiring such as whether or not various branch circuits for lighting and outlets are properly connected to corresponding distribution boards. The method for inspecting. [Prior art] In order to inspect the correctness of indoor wiring, conventionally, workers are arranged on each of the power distribution side and the load side, and the distribution side workers and the load side workers use transceivers and interphones. A method is used in which the work status of each person is communicated by voice to each other to proceed with the work. Next, an example of a method of inspecting a branch circuit for lighting is described with reference to FIG. Is specifically described. [1] Breaker forming distribution side connection part (T1 to Tn) connected to branch circuit (C1 to Cn)
After confirming that both (B1 to Bn) and the neutral branch switch (D1 to Dn) are ON, the load-side worker checks the lighting equipment of one branch circuit (Ca) selected as the inspection target. Turn on the switch, and check whether the lighting fixture is on or not, and check the branch circuit to be inspected.
It is determined whether (Ca) is connected to the power supply or not, and the fact is notified to the power distribution side worker. [2] A predetermined breaker to be connected to the branch circuit (Ca) to be inspected by the power distribution side worker
(Ba) is turned ON / OFF, and the fact is notified to the worker on the load side, and in some cases, the operation of the integrated watt hour meter (WH), that is, by visually checking the rotation of the disk,
It is determined whether or not the branch circuit (Ca) to be inspected is connected to a predetermined integrated watt hour meter (WH). [3] The worker on the load side checks whether the lighting equipment is blinking or not, and determines whether the branch circuit (C
It is determined whether or not the live line (Fa) of a) is connected to a predetermined breaker (Ba), and the fact is notified to the distribution side worker. [4] If the lighting equipment does not blink, the worker on the power distribution side turns on and off the breakers (B1 to Bn) one after another, causing the lighting equipment to blink, that is, the branch circuit (C) to be inspected.
a) Find the breaker (Bb) to which it is connected, and until now, the predetermined breaker (Ba)
The branch circuit (Cb) connected to the searched breaker (Bb) and the branch circuit (Ca) to be inspected connected to the searched breaker (Bb) are connected to the predetermined breaker (Bb).
In step a), the wiring to be connected is modified, and the above procedure [3] is executed for confirmation. [5] When the lighting equipment blinks, the power distribution side worker turns off the predetermined neutral line branch switch (Da) to which the branch circuit (Ca) to be inspected is to be connected and notifies the load side. Contact workers. [6] The load-side worker determines whether or not the lighting fixture is turned off, and determines whether the branch circuit (C
a) It is determined whether the neutral wire (Na) is connected to a predetermined neutral wire branch switch (Da) to be connected, and the fact is notified to the distribution board side worker. [7] If the lighting equipment does not turn off, the distribution panel side worker will install a neutral branch switch (D
1 to Dn) are turned off one after another to turn off the lighting equipment, that is, the branch circuit to be inspected.
While searching for the neutral branch switch (Db) to which (Ca) is connected, and searching for the neutral line (Nb) that has been connected to the predetermined neutral branch switchgear (Da) until now, Sex line switch
(Db) and the wiring to connect the neutral wire (Na) to be inspected, which was connected to the found neutral wire branch switch (Db), to the specified neutral wire branch switch (Da). Then, the above procedure [6] is executed for confirmation. [8] If the lighting fixture is turned off, proceed to the next inspection. [9] Then, the inspection according to the above-mentioned procedures [1] to [7] is executed for all the branch circuits (C1 to Cn). In short, the distribution side worker opens and closes the breaker and the neutral branch switch, while the load side worker checks the blinking and extinguishing of the lighting equipment accompanying the opening and closing, and detects a wiring error. . If the branch circuit is for cosent, a power checker inserted into the outlet is used to determine whether the branch circuit is energized due to operation on the power distribution side. The only difference from the above-described illumination case is that the presence / absence of connection to is determined. [Problems to be Solved by the Invention] However, according to the conventional inspection method, when determining whether or not the branch circuit is connected to a predetermined breaker and a neutral branch switch on the distribution side, it By voice communication from the power worker, the load worker knows the breaker and neutral switchgear operated by the power distribution worker, and by voice communication from the load worker, Since the power distribution side worker knows the operation instruction from the side worker, it has the following inconveniences. In other words, there is a possibility that a work error may occur due to a mistake in saying or opening the voice communication. As a result, for example, as shown by a two-dot chain line (a) in FIG.
Incorrect wiring in which the neutral line (N1) of the branch circuit (C1) is connected to the neutral branch switch (D2) instead of the neutral branch switch (D1) to be connected And, as shown by the two-dot chain line (b), the neutral line (Nn) of the nth branch circuit (Cn) is connected to the nth neutral line branch switch (Dn) of the distribution board to be connected. No, it is possible to terminate the inspection while leaving the wiring mistake connected to the neutral branch switch (D4) of the distribution board connected to the integrated watt hour meter (WH) different from the distribution board to be connected. Occurs. In addition, wiring mistakes on the live side in the branch circuit indicate that the lighting equipment does not turn on even when the switch is turned on, or that the electric equipment does not operate even if the plug is inserted into the outlet and the electric equipment is operated. Although it is relatively easy to find out due to a power failure during use, the wiring error on the neutral line side as described above will not occur as long as the neutral wire is connected to the distribution board. Can hardly be found in use. As a result, the wiring is used as it is, and in particular, in the case of the latter wiring mistake, there arises a problem that the other integrated watt-hour meter also operates with use. In short, in the case of the conventional method, it was very difficult to reliably find a wiring error. In addition, according to the conventional method, when there is a wiring error, the breaker and the neutral branch switch are turned ON / OFF one by one, and the result of the ON / OFF operation is confirmed, so that the branch circuit can be checked. It is necessary to find the correct breaker and neutral switchgear to be connected to the power supply. Therefore, in order to perform the work efficiently, it is necessary to arrange at least one worker for each of the power distribution side and the load side. Of course, it was troublesome and the work efficiency was low. An object of the present invention is to provide an indoor wiring inspection method that can reliably and efficiently find and correct wiring errors. [Means for Solving the Problems] The feature of the indoor wiring inspection method according to the present invention is that, on the power distribution side, for each of the power distribution side connection portions connected to the plurality of branch circuits, While different types of circuit identification signals are output from the circuit identification signal generator, the circuit identification signals are taken out from each of the branch circuits for each of the live line and the neutral line on the load side, and the circuit identification signals are output.
There the terminals hot-entered and neutral terminals of No. respectively identify points, their functions and effects are as follows. [Operation] In other words, if the branch circuits are correctly connected to the predetermined power distribution side connection portion and these branch circuits are correctly wired without disconnection or the like, take out on the load side of the specific branch circuit. The circuit identification signal matches the circuit identification signal input to the predetermined power distribution side connection to which the branch circuit is to be connected. On the other hand, even if the connection point of the branch circuit is normal, if there is a defect such as disconnection in the middle of the wiring, no circuit identification signal can be taken out on the load side. If the branch circuit is connected to the wrong part of the distribution side connection part, the circuit identification signal taken out on the load side of the branch circuit will be replaced with the live line terminal and the neutral terminal at the original distribution side connection part. Wire end
Not at least one of the circuit identification signals corresponding to the
It matches the circuit identification signal corresponding to the hot wire terminal and the neutral wire terminal . Therefore, if the circuit identification signal taken out on the load side is related to [B] the distribution side connection portion to be originally connected, it can be determined that there is no wiring failure in the branch circuit. If it is not related to the distribution side connection to be connected, it can be determined that the branch circuit has a wiring failure such as incorrect wiring or disconnection. In particular, if there is an erroneous wiring, the live terminal and neutral terminal on the load side
It is easy to see which distribution-side connection portion is incorrectly wired. [Effects of the Invention] As is clear from the above characteristic configuration, according to the indoor wiring inspection method of the present invention,
It is possible to confirm whether or not the wiring of the predetermined branch circuit is appropriate. If the wiring is erroneously wired, the erroneous wiring destination can be specified for each live line and neutral line . Therefore, wiring rework can be efficiently and accurately performed. In addition, at the time of these inspections, the circuit identification signal from the circuit identification generator is automatically input to the power distribution side, so that only one worker checks the circuit identification signal on the load side. That is, according to the indoor wiring inspection method of the present invention, it is possible to efficiently and reliably perform the checking of the presence or absence of incorrect wiring, the location of incorrect wiring, and the correction of incorrect wiring and the like, and reduce the number of work steps. be able to. Example Next, an example of the present invention will be described. First, the equipment to be used will be described. The equipment to be used is a circuit identification signal generator (1), an energization checker (2), and a filter (FL). The circuit identification signal generator (1) simultaneously generates a plurality of circuit identification signals (S1 to Sn) different from each other, and as shown in FIG. 1, each of a plurality of loads (A1 to An) from the main line (MC). Connected to the hot wire (F1 to Fn) and the neutral wire (N1 to Nn) in the branch circuit (C1 to Cn) to the hot wire (F1 to Fn) and the neutral wire (N1 to Nn). It has terminals for hot and neutral wires (FT1 to FTn) and (NT1 to NTn) for outputting the identification signals (S1 to Sn). The energization checker (2) is connected to a branch circuit (C1 to Cn), so that the branch circuit (
The circuit identification signals (S1 to Sn) from the live lines (F1 to Fn) and the neutral lines (N1 to Nn) of C1 to Cn are taken out and the numbers corresponding to the extracted circuit identification signals (S1 to Sn) are displayed. As shown in FIG. 2, a live wire display (F) and a neutral wire display (N) are provided, and a live wire that can be inserted into an outlet (3) as a connection portion. A pair of plugs (FP) and (NP) for connection and neutral connection, and a pair of crocodile openings (hot wire connection and neutral connection for free connection to terminals)
Ft) and (Nt). The filter (FL) includes the hot wire (F1 to Fn) and the neutral wire (N1 to Nn), and a breaker (B1 to Bn) and a neutral wire branch that constitute a power distribution side connection portion (T1 to Tn). From the branch circuit (C1 to Cn) to the main line (MC) side while being interposed between the terminals of the switches (D1 to Dn) and allowing power supply to the branch circuits (C1 to Cn) Of the circuit identification signals (S1 to Sn). That is, the circuit identification signals (S1 to Sn) output to the respective branch circuits (C1 to Cn) are prevented from being cross-connected. The inspection method of the present invention using such equipment is as follows. [1] First, the power distribution side connection units (T1 to Tn) are associated with the branch circuits (C1 to Cn) to be connected to them by numbers, and the filter (FL) is set. [2] As shown in FIG. 1, a breaker (B1 to Bn) and a neutral branch switch (D1 to Bn) constituting a distribution side connection part (T1 to Tn) of a plurality of branch circuits (C1 to Cn) Dn) in the ON state, on the power distribution side, the live-line terminals (FT1 to FTn) of the circuit identification signal generator (1).
) To the live line (F1 to Fn) of the branch circuit (C1 to Cn), and the neutral terminal (NT1 to NTn) to the neutral line (N1 to Nn) of the branch circuit (C1 to Cn). Connected to each of the live wires (F1 to Fn) and the neutral wires (N1 to Nn) and a circuit identification signal (S1 to Sn) corresponding to the distribution side connection portion (T1 to Tn) to which they are connected. Output. In the figure, the terminals (FT1 to FTn) and (NT1 to NTn) for the live and neutral wires of the circuit identification signal generator (1) are connected to the hot wires (F1 to Fn) and the neutral wires (N1 to Nn).
) Is shown in the state of being connected in the middle, but actually, the terminals for the live and neutral wires (FT1 to FTn) and (NT1 to NTn) are connected to the breakers (B1 to Bn) and the neutral Line branch switch
It is connected to the terminals (D1 to Dn). [3] On the other hand, on the load side, one of the branch circuits (C1 to Cn) is selected, and the selected branch circuit (Ca) is to be inspected. If it is for an outlet, as shown in FIG. Insert the plugs (FP) and (NP) of the power checker (2) into the outlet and
If (Ca) is for lighting, as shown in Fig. 2, alligator ports (Ft), (Nt) of current checker (2)
A lighting switch (SW) (+) (- ) by connecting terminals respectively to the circuit identification signal from each of the active line in the branch circuit (Ca) (Fa) and neutral conductor (Na) (S1 to Sn) is taken out, and the display of the energization checker (2) is read. [4] Then, the two numbers for the live wire and the neutral wire indicated by the energization checker (2) are both the predetermined distribution side connection to which the branch circuit (Ca) to be inspected is to be connected. If it is a number corresponding to the part (Ta), as shown in FIG. 3 (a), it is assumed that the branch circuit (Ca) to be inspected is correctly connected to a predetermined distribution side connection part (Ta). Then, the branch circuit (C1 to Cn) to be inspected is selected, and the procedure [3] is performed. [5] Also, the two numbers displayed by the energization checker (3) are the predetermined distribution-side connection parts (
If it is not the number corresponding to (Ta), the branch circuit (Ca) to be inspected is not connected to the specified power distribution side connection (Ta) but is incorrectly connected to the displayed power distribution side connection (Tb). It is judged that it is done, and the wiring is adjusted. As the erroneous connection, as shown in FIG. 3 (b), the live wire (Fa) is connected to the predetermined breaker (Ba), but the neutral wire (Na) is not connected to the predetermined neutral wire. When the neutral line (Na) is connected to the predetermined neutral line branch switch (Da), as shown in FIG. 3 (c), and when the live line (Fa) is and when connected to a predetermined outside breaker (Bb), as shown in FIG. 3 (d), hot (Fa) and neutral conductor (Na) is given outside the breaker (Bb) and neutral wire branching off There is a case where it is connected to the switch (Dc) , and in each case, with the display by the energization checker (2) , it is incorrectly connected to the breaker (Bb) or neutral branch switch (Dc) , that is, The location of the branch circuit (Ca) on the power distribution side is known. Another Example Hereinafter, another example of the present invention will be described. [1] In the above embodiment, the filter (FL) is provided to prevent the circuit identification signals (S1 to Sn) output to the branch circuits (C1 to Cn) from being mixed, but the circuit identification signal (S1 -Sn), the breaker (B1-Bn) and the neutral branch switch (D1
To Dn) may be turned off. Of course, when there is no risk of crosstalk, it is not necessary to turn off the filter (FL), the breakers (B1 to Bn), and the neutral branch switches (D1 to Dn) shown in the embodiment. [2] In the above embodiment, the inspection method in the case where the distribution board is different for the lighting and the outlet is shown. However, as shown in FIG. When the branch circuits (C1 to Cn) are connected together, the inspection may be performed as follows. Similarly to the above embodiment, the circuit identification signals (S1 to Sn) are output to the branch circuits (C1 to Cn) on the power distribution side by using the circuit identification signal generator (1). On the other hand, on the load side, first, the branch circuit (CA) for the outlet among the branch circuits (C1 to Cn) is inspected using the energization checker (2) as in the embodiment, and then the branch circuit for the outlet is checked. (CA) Turn ON / OFF the switch (SW) for the lighting equipment (4) in the nearest branch circuit for lighting (CB).
F, the circuit identification signal (Sb) output to the lighting branch circuit (CB) is changed, and the changed circuit identification signal (Sb) is back-detected by the circuit identification signal generator (1). hand,
In a state where the output of the circuit identification signal (S1 to Sn) to each of the branch circuits (C1 to Cn) is temporarily interrupted, the circuit identification signal (Sb ) reversely detected from the circuit identification signal generator (1) to the main line (MC). ) , And the circuit identification signal (Sb) output to the main line (MC) is taken out and displayed by the energization checker (2) inserted into the outlet (3) in the outlet branch circuit (CA). . In other words, on the distribution side, the circuit identification signal (S
b) is replaced with the branch circuit (C) for the outlet located closest to the branch circuit (CB) for lighting.
The reading is performed by the power-on checker (2) inserted into the outlet (3) in A). Therefore, according to this method, the circuit identification signal generator (1) detects changes in the circuit identification signals (S1 to Sn) in the branch circuits (C1 to Cn), and detects the detected circuit identification signals (Sb ) To the main line (MC) is required. [3] In the claims, a reference numeral is written for convenience of comparison with the drawings.
With this entry, the present invention is not limited to the structure of the attached drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The drawings show an embodiment of an indoor wiring inspection method according to the present invention, and FIG.
FIG. 2 is a perspective view of an energization checker, FIGS. 3 (a) to 3 (d) are indoor wiring diagrams of main parts, and FIG. 4 is an indoor wiring diagram showing another embodiment of the present invention. (C1 to Cn) ... branch circuit, (T1 to Tn) ... power distribution side connection, (S1 to Sn) ... circuit identification signal.

Claims (1)

[Claims] 1. In power distribution side, the power distribution side connecting portion are respectively connected to the plurality of branch circuits (C ₁ ~C _n) to (T ₁ ~T _n), the power distribution side connecting portion (T ₁ ~T _n) each The circuit identification signals (S _{1 to} S _n ) of different types are output from the circuit identification signal generator (1), while the circuit identification signals (S ₁ to C _n ) are output from the branch circuits (C _{1 to} C _n ) on the load side. S
Its circuit identification signal (S ₁ ~S _n) input taken out ₁ to S _n) for each active and neutral conductors
The live wire terminals (FT _{1 to} FT _n ) and the neutral wire terminals (NT _{1 to} NT _n )
Indoor wiring inspection method to identify .