JP2008278015A - Power distribution device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To obtain a power distribution device having such a structure that "a device for communication performance improvement of power line communication" which has been heretofore proposed can be easily installed without increasing costs and without performing mounting construction in a power-failure state. <P>SOLUTION: Breakers 1 (a, b, c, and d) disposed on the power distribution device 8 are characterized in that outlets 5 (a, b, c, and ) having insertion slots 6 into which a plug that a device 12 for improving communication performance of power line communication or a power line communication device 11 having an amplifying and relaying function can be inserted, has the insertion slots 6 disposed while connected to cable runs extending from switches 4 (a, b, c, and d) of the breakers to indoor power distribution line connection terminals 3 (a, b, c, and d). With the configurations, the devices 12 and 11 are easily installed without increasing costs and without performing mounting construction in a power-failure state. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  TECHNICAL FIELD The present invention relates to a power distribution device such as a distribution board installed at an electric circuit service entrance of a building, and more particularly to a power distribution device that enables construction of a home LAN or the like using power line communication that superimposes a high frequency on an indoor distribution line. It is.

  The single-phase three-wire distribution line is composed of two voltage lines (L1 phase, L2 phase) with a ground voltage of 100 V and one neutral line (N phase) with a ground voltage of 0 V, Since the L1 phase and the L2 phase are opposite phases, the voltage between the L1 phase and the L2 phase is 200V. 100V devices such as 100V outlets and lighting fixtures that are normally used in general homes and offices are connected to L1 phase and N phase, or L2 phase and N phase, for devices that require 200V such as air conditioners and IH cooking heaters. The outlet is connected to the L1 phase and the L2 phase.

  As described above, the power distribution device installed in the electric circuit service entrance of a general home is a device that distributes the power distribution line for each room or device in consideration of the load, and as introduced in Non-Patent Document 1, The L1 phase breaker in which the L1 phase and the N phase are connected to the house, the L2 phase breaker in which the L2 phase and the N phase are connected, and the like are arranged in various manners.

  When using an indoor distribution line as an information transmission path, the power line communication device is connected to a 100V outlet. As described above, the 100V outlet is connected to the L1 phase and the L2 phase. There is. The phase to which the 100V outlet is connected is the same phase in the same room, but may be different in different rooms. In the latter case, since power line communication is performed between the L1 phase and the L2 phase, it is necessary to pass through a power distribution device.

  However, since the conventional power distribution device is not considered to enable power line communication between the L1 phase and the L2 phase via the power distribution device, power line communication between the L1 phase and the L2 phase is not performed. It is obstructed by the power distribution device, and high frequency attenuation occurs. In addition, as introduced in Non-Patent Document 1, the inter-phase communication between the L1 phase and the L2 phase has more signal attenuation than the communication between the same phases.

  Therefore, conventionally, when performing power line communication between the L1 phase and the L2 phase, communication performance may be degraded, or communication may not be possible in the worst case. Thus, the conventional power distribution apparatus makes it difficult to construct a home LAN or the like using power line communication.

  As a countermeasure against the deterioration of communication performance between the L1 phase and the L2 phase, for example, a “carrier wave filter” proposed in Patent Document 1 between the L1 phase and the L2 phase on the power distribution apparatus, A method of arranging “a load device having a low impedance with respect to the frequency of the communication signal” proposed in Patent Document 2 is conceivable.

  Further, as countermeasures against deterioration of communication performance due to the power distribution device, for example, a “device that forms a high-frequency detour” proposed in Patent Document 3 is used to bypass the power distribution device and connect the L1 phase and the L2 phase. A method of connecting the two at high frequency is conceivable.

JP 2002-373812 A (FIG. 3) Japanese Patent Laying-Open No. 2003-32157 (FIG. 1) Japanese Patent Laying-Open No. 2003-234681 (FIG. 1) “Effects of Home Distribution Lines (Power Lines)” Internet <URL: http://panasonic.co.jp/pcc/products/plc/kounyu.html>

  However, when the “apparatus for improving the communication performance of power line communication” proposed in Patent Documents 1 to 3 above is applied to an existing power distribution apparatus, it is not originally configured to be arranged, so the conventional technology is installed. Therefore, it is necessary to perform installation work in the state of power failure with the breaker switch turned off. In this case, the convenience of power line communication, which is based on the concept of being plugged into an outlet, is impaired.

  In addition, it is conceivable that the “device for improving the communication performance of power line communication” proposed in Patent Documents 1 to 3 above is installed in the power distribution device in advance, but this increases the cost of the power distribution device. To do.

  In addition, unless the user actively uses power line communication, the possibility of selecting a power distribution device equipped with the conventional technology is low even at the time of new construction.

  The present invention has been made in view of the above, and it is possible to install a conventionally proposed device for improving the communication performance of power line communication in a power failure state without causing an increase in cost. It aims at obtaining the power distribution apparatus provided with the structure which enables it to install easily.

  In order to achieve the above-described object, the present invention provides a power distribution device in which a breaker having a switch for opening and closing between a commercial power source and a distribution line in a building is arranged. The breaker has communication performance of power line communication. An outlet provided with an insertion port into which a plug of an improved device or a power line communication device having an amplification relay function can be inserted connects the insertion port to an electric circuit from the breaker switch to a distribution line connection terminal in the building. It is characterized by being arranged by.

  According to the present invention, since the power distribution device is provided with the outlet for easily connecting the power line communication device having the amplification performance or the power line communication device, the communication performance of the power line communication may be deteriorated. It is possible to easily install power distribution equipment with high power distribution equipment and power line communication equipment with an amplification relay function to a high power distribution equipment without having to install the power supply in a power failure state. It is possible to improve the communication performance of the power line communication that passes through, and to expand the applicable range.

  Moreover, since the outlet provided in the power distribution device is composed of the insertion port and the connecting conductor that connects it to the electric circuit, even if the power distribution device is provided with a breaker to which a power outlet has been added in advance, the cost increase is small. Therefore, if you install a power distribution device with a breaker with an outlet attached to users who do not plan to perform power line communication at the time of new construction, they can easily use power line communication when necessary. If power line communication is used, a device that easily improves communication performance or a power line communication device that has an amplification relay function can be installed without using a power outage installation. It is possible to achieve stable power line communication between any outlets.

  Exemplary embodiments of a power distribution apparatus according to the present invention will be described below in detail with reference to the drawings.

Embodiment 1 FIG.
1 is an external conceptual diagram showing the configuration of a power distribution apparatus according to Embodiment 1 of the present invention. In FIG. 1, the relationship between the four breakers 1a, 1b, 1c, and 1d arranged in the power distribution apparatus 8 and the lead-in wire 9 that is a commercial power supply is shown.

  In FIG. 1, breakers 1 (a, b, c, d) have the same configuration, and basically, a power supply side connection terminal 2 (to which two of the three lead wires 9 are connected) ( a, b, c, d), equipment side connection terminals 3 (a, b, c, d) to which the indoor distribution lines 10 (a, b, c, d) are connected, and power source side connection terminals 2 (a , B, c, d) and a switch 4 (a, b, c, d) for opening and closing an electric circuit between the device side connection terminals 3 (a, b, c, d). That is, although not explicitly shown in FIG. 1, the power supply side connection terminals 2 (a, b, c, d) and the switches 4 (a, b, c, d) are connected by electric wires, and the equipment side connection terminals 3 (a, b, c, d) and the switch 4 (a, b, c, d) are connected by an electric wire.

  In the first embodiment, in the breaker 1 (a, b, c, d) having such a configuration, the outlet 5 (a, b, c, d) connects the insertion port 6 to the device side connection terminal 3 ( a, b, c, d) and a switch 4 (a, b, c, d) are arranged so as to be connected to an electric wire. As will be described later, the outlets 5 (a, b, c, d) have various mounting arrangements. In FIG. 1, the outlets 5 (a, b, c, d) are connected to the device side connection terminals 3 (a, b, c, d) and the switch 4 (a, b, c, d) are arranged so as to straddle the wire. The outlet 6 of the outlet 5 (a, b, c, d) improves the communication performance of a power line communication device (hereinafter referred to as “PLC modem”) 11 having an amplification relay function and power line communication. The plug which the apparatus 12 has can be inserted now.

  Next, among the three lines of the lead-in wire 9, reference numeral 9a is an L1 phase voltage line, reference numeral 9b is a neutral line, and reference numeral 9c is an L2 phase voltage line.

  The power supply side connection terminal 2a of the breaker 1a is connected to the L1 phase voltage line 9a and the neutral line 9b. That is, the indoor distribution line 10a connected to the apparatus side connection terminal 3a is a 100V distribution line.

  The power supply side connection terminal 2b of the breaker 1b is connected to the L1 phase voltage line 9a and the L2 phase voltage line 9c. That is, the indoor distribution line 10b connected to the apparatus side connection terminal 3b is a 200V distribution line.

  The power supply side connection terminal 2c of the breaker 1c is connected to the L2 phase voltage line 9c and the neutral line 9b. That is, the indoor distribution line 10c connected to the apparatus side connection terminal 3c is a 100V distribution line.

  The power supply side connection terminal 2d of the breaker 1d is connected to the L1 phase voltage line 9a and the L2 phase voltage line 9c. That is, the indoor distribution line 10d connected to the device side connection terminal 3d is a 200V distribution line.

  When the connection relationship between the breaker 1 (a, b, c, d) and the lead-in wire 9 is as described above, the power line communication (not shown) using the indoor distribution line 10 (a, b, c, d) as the information transmission path The communication connection relationship between the appliances is as follows.

  The indoor distribution line 10a connected to the breaker 1a and the indoor distribution line 10c connected to the breaker 1c are both 100 V distribution lines, but have different phases. Therefore, when a power line communication device (not shown) connected to the indoor distribution line 10a communicates with a power line communication device (not shown) connected to the indoor distribution line 10c, the connection between different phases is established, and the breakers 1a, 1c and Since the lead-in wire 9 is interposed, there may be a situation where communication performance is deteriorated or communication is not established.

  On the other hand, since the indoor distribution line 10b connected to the breaker 1b and the indoor distribution line 10d connected to the breaker 1d are both 200V distribution line paths, a power line communication device (not shown) connected to the indoor distribution line 10b. And a power line communication device (not shown) connected to the indoor power distribution line 10d performs in-phase connection.

  However, the power supply side connection terminals 2b and 2d of the breakers 1b and 1d are connected, and the electric circuit between the indoor distribution line 10b and the indoor distribution line 10d is connected, but leakage of the high-frequency signal to the lead-in line 9 side. There is also a problem that the high frequency signal is attenuated by the breakers 1b and 1d themselves.

  In addition, when a power line communication device (not shown) connected to the indoor distribution line 10a and a power line communication device (not shown) connected to the indoor distribution line 10b or the indoor distribution line 10d communicate with each other, a connection between different phases is established. Moreover, since the breakers 1a, 1b, 1d and the lead-in wire 9 are interposed, it is conceivable that communication performance is deteriorated or communication is not established.

  Similarly, when a power line communication device (not shown) connected to the indoor distribution line 10c and a power line communication device (not shown) connected to the indoor distribution line 10b or the indoor distribution line 10d communicate with each other, the connection between the phases is different. Moreover, since the breakers 1c, 1b, 1d and the lead-in wire 9 are interposed, it is conceivable that communication performance is deteriorated or communication is not established.

  These problems can be easily solved as follows. First, the “device for improving communication performance” 12 (hereinafter simply referred to as “device 12”) according to the prior art is used for the problem at the time of connection between different phases. Here, as an example, the device 12 will be described by taking up a “device for forming a high-frequency detour” proposed in Patent Document 3.

  For example, when a power line communication device (not shown) connected to the indoor distribution line 10a communicates with a power line communication device (not shown) connected to the indoor distribution line 10c, one plug of the device 12 is connected to the breaker 1a. A circuit that bypasses the breakers 1a and 1c in a high frequency can be easily formed by simply plugging into the added outlet 5a and inserting the other plug into the outlet 5c added to the breaker 1c. Similarly, in the above-described other connection between different phases, it is only necessary to attach the device 12 between the outlets 5 respectively added to two interposed breakers.

  Similarly, the “carrier wave filter” proposed in Patent Document 1 and the “load device having low impedance with respect to the frequency of the communication signal” proposed in Patent Document 2 are also used to form a detour. Can do.

  As described above, since a high-frequency detour can be easily formed, it is possible to easily improve the performance of power line communication and stabilize the communication during inter-phase connection.

  Next, in the case where the attenuation at the breaker is large at the time of in-phase connection, since the device 12 does not have an amplification function, the PLC modem 11 having a relay amplification function is used. In the example of FIG. 1, in-phase connection is established when a power line communication device (not shown) connected to the indoor distribution line 10b and a power line communication device (not shown) connected to the indoor distribution line 10d communicate.

  In this case, if the PLC modem 11 has a time-division relay function, the PLC modem 11 need only be connected to either the outlet 5b of the breaker 1b or the outlet 5d of the breaker 1d. .

  Further, if the PLC modem 11 has a frequency division relay function, the PLC modem 11 is connected to the outlet 5b of the breaker 1b and the outlet 5d of the breaker 1d so as to allocate power line communication of different frequency bands. That's fine.

  In this way, it is possible to easily install the PLC modem 11 having an amplification repeater function that can compensate for the large attenuation at the breaker during the in-phase connection, thereby improving the performance of the power line communication and stabilizing the communication. It can be easily realized.

  As described above, according to the first embodiment, an outlet that can be easily connected to a device that improves the communication performance shown in the prior art or a power line communication device that has an amplification relay function is provided on each breaker in the power distribution device. Since it is connected to the distribution line, it has a device that can easily improve the communication performance without the need for installation work with power outage, and an amplification relay function to the power distribution device that is likely to cause performance degradation of the power line communication. A power line communication device can be installed, the performance of power line communication can be improved, and the application range such as construction of a home LAN can be expanded.

  Hereinafter, various specific configuration examples of the outlet added to the breaker will be described as embodiments. Hereinafter, the breaker 1 (a, b, c, d) is referred to as a breaker 1. The power supply side connection terminals 2 (a, b, c, d) are referred to as power supply side connection terminals 2. The device side connection terminals 3 (a, b, c, d) are referred to as device side connection terminals 3.

Embodiment 2. FIG.
FIG. 2 is an external conceptual diagram illustrating an outlet (part 1) attached to a breaker disposed in a power distribution device as Embodiment 2 of the present invention. In FIG. 2, the structural example of the outlet socket previously attached to a breaker is shown. That is, a configuration example of a power distribution device with a built-in outlet is shown.

  In the second embodiment, the outlets 5 (a, b, c, d) shown in FIG. 1 are simply referred to as outlets 5, but as shown in FIG. Is provided with a connection conductor 7 that can be connected to two electric wires between the switch 4 and the device side connection terminal 3, and the connection conductor 7 provided at the insertion port 6 is connected to the switch 4 and the device side connection terminal. By connecting the two electric wires to the two electric wires by soldering or the like, the outlet 5 is disposed on the breaker 1 so as to straddle the electric circuit between the switch 4 and the device side connection terminal 3.

  According to this configuration, the outlet 5 is attached to the breaker 1 in advance, and the outlet 5 is a plug into which a power line communication device having an amplification relay function or a device included in the device for improving the communication performance of power line communication shown in the prior art is plugged. Since it is composed of the insertion port 6 and the connection conductor 7 that connects the insertion port 6 to the distribution line between the switch 4 and the device side connection terminal 3, the distribution with the breaker added with the outlet 5 in advance is arranged Even if it is an apparatus, the increase in cost is small.

  Therefore, according to the second embodiment, it is necessary for a user who does not plan to perform power line communication at the time of new construction if a power distribution device in which a breaker with an outlet according to the second embodiment is installed is installed. When using the power line communication, the communication performance can be easily improved without the need for installation work involving power outages. An improved device and a power line communication device having an amplification relay function can be installed, and stable power line communication can be performed between any outlets.

Embodiment 3 FIG.
FIG. 3 is an external conceptual diagram illustrating an outlet (part 2) attached to a breaker disposed in a power distribution device as Embodiment 3 of the present invention. In FIG. 3, the structural example (the 1) of the outlet socket attached to the existing power distribution apparatus is shown.

  In FIG. 3, a pair of insertion holes 6 of the outlet 14 is provided with a connection conductor 15 having a predetermined length, and the connection conductor 15 is connected to the tip of the connection conductor 15 so as to surround the screw hole of the device side connection terminal 3. A terminal 16 is provided.

  According to this configuration, the outlet 14 can be attached to the equipment-side connection terminal 3 together with the indoor distribution line in the existing distribution device.

  Therefore, according to the third embodiment, when a user who installs and uses a conventional power distribution device subsequently wants to improve the performance of power line communication or to construct a home LAN, the outlet installation cost is low. Can easily meet the user's wishes.

Embodiment 4 FIG.
FIG. 4 is an external conceptual diagram for explaining an outlet (part 3) attached to a breaker disposed in a power distribution device as Embodiment 4 of the present invention. In FIG. 4, the structural example (the 2) of the outlet socket attached to the existing power distribution apparatus is shown.

  In FIG. 4, the pair of outlets 6 of the outlet 18 is provided with a rod-shaped connecting conductor 19 a having a predetermined length on one end side in the longitudinal direction and a cylindrical connecting conductor 19 b having a predetermined length on the other end side in the longitudinal direction. ing.

  The rod-like connecting conductor 19a is inserted and fixed at the tip of the rod-like connecting conductor 19a between the switch 4 and the device side connecting terminal 3 with the sheath removed. Further, the cylindrical connection conductor 19b is configured to insert and fix the tip of an indoor distribution line connected to the device side connection terminal 3 in the cylinder.

  According to this configuration, the outlet 18 can be attached to the indoor distribution line in the vicinity of the device-side connection terminal 3 in the existing distribution device.

  Therefore, according to the fourth embodiment, as in the third embodiment, a user who has installed and used a conventional power distribution device wants to improve the performance of power line communication or construct a home LAN thereafter. If there is, it is possible to easily meet the user's wishes with a small outlet installation cost.

Embodiment 5. FIG.
FIG. 5 is an external conceptual diagram for explaining an outlet (part 4) attached to a breaker arranged in a power distribution apparatus as Embodiment 5 of the present invention. FIG. 5 shows an example of the configuration of an outlet that prevents erroneous connection. There are three modes.

  In the first aspect, the shape of the pair of outlets provided in the outlet 22 is such that a power plug of a general household appliance cannot be inserted, and only the plug of the PLC modem 11 or the device 12 can be inserted. is there.

  In FIG. 5, as an example, one insertion port 23 a has a rectangular shape, but the other insertion port 23 b has a shape in which two long squares intersect. In this case, the plugs of the PLC modem 11 and the device 12 have a shape that can be inserted into the insertion ports 23a and 23b shown in FIG.

  The second mode is to arrange an identifier with a color or mark indicating that the outlet is a power line communication outlet on the face plate 24 of the outlet 22.

  Although the 3rd aspect is not shown in figure, the cap which can be inserted in the insertion port 6 of the outlet 5 shown in FIG. 2 etc. which can also insert the power plug which general household appliances have is prepared, and power line communication is carried out to the cap. An identifier with a color or a mark indicating that the outlet is an outlet for performing the.

  According to this Embodiment 5, since the misconnection in which a general household appliance is connected to the outlet by this Embodiment 1-4 provided in the power distribution apparatus can be prevented, a general household appliance will be connected. It is possible to avoid the performance degradation of the power line communication due to the above, and it is possible to improve the performance of the power line communication and stabilize the communication more reliably.

Embodiment 6 FIG.
FIG. 6 is an external conceptual diagram for explaining a filter attached to a breaker disposed in a power distribution apparatus together with an outlet as Embodiment 6 of the present invention. In FIG. 6, components that are the same as or equivalent to the components shown in FIG. 1 (Embodiment 1) are assigned the same reference numerals. Here, with reference to FIG. 1 as appropriate, the description will be focused on the portion related to the sixth embodiment.

  In FIG. 6, the breaker 26 is provided with an outlet 27 for connecting the PLC modem 11 and the device 12 as described above, and in addition, a high-pass filter 28 and a blocking filter 29 are provided.

  The blocking filter 29 is provided in a distribution line that connects between the switch 4 and the device side connection terminal 3. The high-pass filter 28 has one end connected to the insertion port 6 of the outlet 27 and the other end connected to a distribution line connecting the blocking filter 29 and the device side connection terminal 3.

  The high pass filter 28 separates the power frequency and the high frequency, takes out the high frequency signal on the indoor distribution line connected to the equipment side connection terminal 3 to the outlet 27 side, and from the PLC modem 11 and the device 12 connected to the outlet 27 side. The high frequency signal is sent onto the indoor distribution line connected to the equipment side connection terminal 3.

  According to this configuration, even if the connection between the outlets 5a and 5d in FIG. 1 is replaced with the device 12 and an electric wire having good transmission characteristics is used as a communication line for power line communication, the same effect can be obtained.

  Moreover, the blocking filter 29 isolate | separates between the service line 9 which is a commercial power supply, and the indoor distribution line by the side of the apparatus side connection terminal 3 in high frequency. That is, the noise flowing into the switch 4 from the lead-in wire 9 connected to the power supply side connection terminal 2 is blocked from flowing out to the equipment side connection terminal 3 side, and the high frequency signal transmission characteristics on the equipment side connection terminal 3 side are good. To do. Moreover, it prevents that the high frequency signal on the indoor distribution line by the side of the apparatus side connection terminal 3 flows out to the lead-in wire 9 side.

  As described above, according to the sixth embodiment, the blocking filter 29 is interposed in the electric circuit from the switch 4 to the device side connection terminal 3 in advance, and the electric circuit from the blocking filter 29 to the device side connection terminal 3 and the outlet 27 are connected. When the high pass filter 28 is provided between them, it is possible to more easily improve the performance of power line communication and stabilize communication.

  In addition, although the example which installs the high-pass filter 28 and the blocking filter 29 simultaneously was shown, the structure which uses either one with the electrical outlet 27 may be sufficient. Needless to say, the outlet 27 can be similarly provided with the measures for preventing the erroneous connection described in the fifth embodiment.

  As described above, the power distribution device according to the present invention is a device for improving the communication performance of power line communication that has been proposed in the past, without incurring an increase in cost and without having to perform installation work in a power failure state. It is useful to easily install and improve the communication performance of power line communication and to easily construct a home LAN using power line communication.

It is an external appearance conceptual diagram which shows the structure of the power distribution apparatus by Embodiment 1 of this invention. It is an external appearance conceptual diagram explaining the outlet socket (the 1) attached to the breaker arrange | positioned in a power distribution apparatus as Embodiment 2 of this invention. It is an external appearance conceptual diagram explaining the outlet socket (the 2) attached to the breaker arrange | positioned in a power distribution apparatus as Embodiment 3 of this invention. It is an external appearance conceptual diagram explaining the outlet socket (the 3) attached to the breaker arrange | positioned in a power distribution apparatus as Embodiment 4 of this invention. It is an external appearance conceptual diagram explaining the outlet socket (the 4) attached to the breaker arrange | positioned in a power distribution apparatus as Embodiment 5 of this invention. It is an external appearance conceptual diagram explaining the filter attached to a breaker arrange | positioned in a power distribution apparatus with an electrical outlet as Embodiment 6 of this invention.

Explanation of symbols

1, 1a, 1b, 1c, 1d Breaker 2, 2a, 2b, 2c, 2d Power supply side connection terminal 3, 3a, 3b, 3c, 3d Equipment side connection terminal 4, 4a, 4b, 4c, 4d Switch 5, 5a, 5b, 5c, 5d Outlet 6 Plug socket 7 Connection conductor 8 Power distribution device 9 Lead-in wire (commercial power)
9a L1 phase voltage line 9b Neutral line 9c L2 phase voltage line 10a, 10b, 10c, 10d Indoor distribution line 11 Power line communication device (PLC modem) having relay amplification function
DESCRIPTION OF SYMBOLS 12 The apparatus which improves the communication performance by a prior art 14 Outlet 15 Connection conductor 16 Connection terminal 18 Outlet 19a Bar-shaped connection conductor 19b Tubular connection conductor 22 Outlet 23a, 23b Plug socket 24 Faceplate 26 Breaker 27 Outlet 28 Bypass Filter 29 Blocking filter

Claims (10)

In a power distribution device in which a breaker having a switch for opening and closing between a commercial power source and a distribution line in a building is arranged,
The breaker includes
An outlet provided with an insertion port into which a plug of a device for improving communication performance of power line communication or a power line communication device having an amplification relay function can be inserted is connected to the distribution line connection terminal in the building from the switch of the breaker. Arranged to connect to the electric circuit
A power distribution device characterized by that.   The power distribution device according to claim 1, wherein the outlet of the outlet is connected to an electric wire between the switch and the distribution line connection terminal in the building.   2. The power distribution according to claim 1, wherein the outlet of the outlet includes a connection conductor having a terminal which can be connected to the distribution line connection terminal in the building of the breaker together with the distribution line in the building. apparatus.   The outlet of the outlet includes a rod-shaped connection conductor that inserts a tip into an electric wire between the switch of the breaker and the distribution line connection terminal in the building, and a distribution in the building connected to the distribution line connection terminal in the building. The power distribution device according to claim 1, further comprising a cylindrical connection conductor into which the tip of the electric wire is inserted.   The outlet of the outlet is connected to an electric circuit from the switch to a distribution line connection terminal in a building through a high-pass filter that separates a power frequency and a high frequency. Power distribution equipment.   A blocking filter that separates the commercial power supply side and the building distribution line side at high frequency between the connection position of the outlet of the outlet to the electrical path from the switch to the distribution line connection terminal in the building and the switch The power distribution device according to claim 1, wherein the power distribution device is provided.   The outlet of the outlet is connected to an electric circuit from the blocking filter to a distribution line connection terminal in a building through a high-pass filter that separates a power frequency and a high frequency. Power distribution equipment.   The outlet of the outlet has a shape in which only a plug of a power line communication device having a function of improving communication performance of power line communication or a power relay device having an amplification relay function can be inserted, and a plug of other home appliances or the like cannot be inserted. The power distribution device according to claim 1, wherein the power distribution device is a power distribution device.   The power distribution device according to any one of claims 1 to 7, wherein a mark or a color identifier for preventing erroneous connection is installed on a face plate of the outlet.   The power distribution device according to any one of claims 1 to 7, further comprising a cap that is provided with an identifier by a mark or a color that prevents erroneous connection, and that can be attached to the outlet of the outlet.

Images