JP5856804B2 - Electrical wiring structure and building construction method - Google Patents

Description

  The present invention relates to an electrical wiring structure and a building construction method.

  Conventionally, when electricity is used for construction of a relatively small building such as a house, a temporary utility pole with an electric box with a built-in breaker and outlet is set up on the site under construction. In general, a lead-in wire is connected and an extension cord such as a drum cord is connected to an outlet in an electric box (see, for example, FIG. 3). When the building's enclosure is completed and the outer walls, entrance doors, sashes, etc. are installed, and the construction inside the building begins, the extension cord is drawn into the building from the entrance doors and sashes. The temporary utility pole is removed just before the building is completed, and the service line is connected to a watt hour meter installed on the outer wall of the building.

  Further, Patent Document 1 describes a temporary distribution board that can be easily used by connector connection. In Patent Document 1, a connector is previously drawn from a main line on a predetermined floor, and when the distribution board is installed on the floor, the main line connector and the distribution board connector are connected.

JP 2002-010414 A

  The construction work shown in FIG. 3 using the above-mentioned temporary utility pole and extension cord has the following problems. That is, it is necessary to connect or disconnect the extension cord every time construction starts and ends, which is troublesome. Also, since the extension cord passes through the door or sash, curing (curing to prevent the extension cord from being damaged by being caught by the door or sash, curing to prevent the sash from being damaged when the sash is a resin sash) is performed. It is necessary and time-consuming. In addition, the extension cord crawls the floor endlessly, making it unsightly, obstructing cleaning, and possibly injuring yourself. In particular, when a building has multiple floors, or when internal work progresses and a partition wall that partitions the living room is created, this problem becomes more prominent, and more than one worker works with an electric tool or the like. In this case, it is necessary to use an octopus leg wiring, and the problem becomes more prominent.

  Moreover, also in patent document 1, the trunk line itself is a temporary thing provided with the connector, and the effort which removes after completion is generated. In addition, it is unclear how the electric tool is connected to the temporary distribution board, and there is a problem in terms of feasibility.

  The present invention has been made to solve such a problem, and an object thereof is to provide an electrical wiring structure and a building construction method capable of improving work efficiency.

An electrical wiring structure according to the present invention is an electrical wiring structure in a building under construction, and is provided outside the building, and a temporary power pole that receives a lead-in wire, and a through hole of a wattmeter box cradle from the temporary power pole Via the main trunk routed to a predetermined position inside the building, a distribution board placed inside the building and connected to the end of the main trunk line, and from the distribution board to a predetermined position inside the building A wired main branch line and an outlet connected to the end of the permanent branch line are provided.

In addition, the building construction method according to the present invention is a main trunk line that is wired to a predetermined position inside the building through the through hole of the cradle of the electricity meter box after completion of the building frame construction and waterproofing construction of the building. A distribution board connected to the end of the main trunk line , a main branch line branched from the distribution board , and an outlet connected to the end of the main branch line, and the main trunk line The first process of connecting to the service line via a temporary utility pole installed outside the building, supplying electricity from the main trunk line, main branch line and outlet to the equipment necessary for the internal work of the building And a second step of performing a main electrical work inside and outside the building using the main trunk line and the main branch line.

  According to the electrical wiring structure and the building construction method according to the present invention, it is possible to supply electricity from the outlet via the service line, the temporary utility pole, the main trunk line, and the main branch line. There is no need to use a drum cord or the like to draw power from a temporary utility pole outside the building, so there is no need to go out and connect to an external temporary electrical box every time construction starts. No need for curing. In addition, as compared with the case where a drum cord or the like is used, the cord does not crawl inside the building, so that the appearance is good, the inside of the building is easily cleaned, and it is possible to prevent the cord from being tripped and to improve safety. Further, since the main trunk line and the main branch line can be used as they are for main installation, wiring is not wasted. As described above, work efficiency can be improved.

Also, the electrical interconnect structure and building construction method according to the present invention, the outlet is preferably provided for each room partitioned by partition walls. Since each room has an outlet, it is not necessary to move between rooms with a drum cord (while dragging a long cord) after it has been divided by a partition wall, and labor can be reduced. Loss due to such factors can be reduced. In addition, the appearance, cleanability inside the building, and safety can be further enhanced.

  In the electrical wiring structure and the building construction method according to the present invention, it is preferable that the building has a plurality of levels and an outlet is provided in each level. Since each floor has an outlet, it is not necessary to move up and down the floor with a drum cord (while dragging a long cord), and labor can be reduced, and loss due to cord entanglement and catching can also be reduced. In addition, it is safer because there is no cord on the stairs.

  In the electric wiring structure and the building construction method according to the present invention, the main branch line is preferably a dedicated circuit line at the time of main installation. According to this, by using the branch line used as the dedicated circuit line, it is not entangled with other outlets and branch lines, and the time and labor for installing the outlet (replacement) can be saved.

  Further, in the electrical wiring structure and the building construction method according to the present invention, it is preferable that the main trunk line is passed through the through hole of the cradle of the watt-hour box before the main installation. According to this, it is possible to save the trouble of cutting the main line and reconnecting it when installing the watt-hour meter. The wattmeter box cradle (that is, the base part for fixing the wattmeter box to the outer wall) is used for external work such as sealing the outer wall joints and painting the outer wall. It is necessary to attach it to the outer wall after the construction (which is proceeded in parallel) and before the change from “temporary” to “main” (that is, wire reconnection). On the other hand, it is required to always use temporary power while internal work is being performed. Therefore, by passing the main trunk line through the through hole of the cradle, the installation work of the wattmeter box cradle in the temporary electrical wiring structure can be carried out at any time within the above period without interrupting the supply of temporary power. This makes it easier to adjust the construction date.

  According to the present invention, work efficiency can be improved.

It is a model figure which shows the electrical wiring structure which concerns on embodiment of this invention. It is a model figure which shows the mode of the building after a main installation. It is a model figure which shows the conventional electrical wiring structure.

  Hereinafter, embodiments of an electrical wiring structure and a building construction method according to the present invention will be described in detail with reference to the drawings. In the description of the drawings, the same elements are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1 is a schematic diagram showing an electrical wiring structure 1 in a building 100 under construction. The electrical wiring structure 1 is constructed when the internal construction of the building 100 is performed after the building construction and waterproofing construction of the building 100 are completed. As shown in FIG. 1, the electrical wiring structure 1 includes a temporary electric pole 2 provided outside the building 100 and in the site, a temporary electric box 3 provided on the temporary electric pole 2, and the temporary electric box 3. A main trunk line 4 wired to the inside of the main body 100, a distribution board 6 connected to the end of the main trunk line 4, and a main branch line 7 wired from the distribution board to a predetermined position in the building 100. And an outlet 8 connected to the end of the main branch line 7.

  The temporary utility pole 2 is for securing electric power from the outside during the construction of the building 100, and the temporary electrical box 3 is provided. A service line 9 for drawing electricity into the site is drawn out from the utility pole EP outside the site. The temporary utility pole 2 receives the service line 9 and connects the service line 9 to the temporary electrical box 3.

  In the main trunk line 4, the outer end of the site is connected to the temporary electrical box 3 and the inner end of the site is connected to the distribution board 6. The main trunk line 4 includes, on the outside of the building 100, an external wiring portion 4A that extends from the temporary electrical box 3 to an outer wall drawing portion of the outer wall 100a of the building 100 (a position where the watt-hour meter box 11 is provided), and an outer wall 100a. Indoor wiring part 4B extended from the outer wall lead-in part (position where watt-hour meter box 11 is provided) to the position of distribution board 6. As a result, the main trunk line 4 is wired from the temporary utility pole 2 to the position of the distribution board 6 inside the building 100 via the outer wall lead-in section and the indoor wiring section 4B using the newly constructed trunk line. It is preferable that the external wiring portion 4A of the main trunk line 4 is protected by a CD tube and is not easily scaffolded so as not to hinder the work, or the ground in the immediate vicinity of the building 100 is crushed.

  It is preferable that the main trunk line 4 is previously connected to the through hole of the cradle 11a of the electricity meter box 11 before the main installation. In this state, the cradle 11a is preferably separated from the outer wall 100a and covered with a box 12 such as a cardboard box for protection. The box 12 is fixed to a scaffold or the like. After the outer wall 100a is painted, the box 12 is disassembled and the cradle 11a is taken out.

  The distribution board 6 is for branching the power from the main trunk line 4 to each room and each level via the main branch line 7. A new distribution board may be used as the distribution board 6, but a temporary branch board may be used as a temporary one. When using a temporary branch board, the distribution board 6 is comprised, for example, by attaching a plurality of child breakers to the plate member. Through this child breaker, a main branch line 7 is connected to each room and each level. The plate member is preferably a flame-retardant synthetic resin molded product or a wooden one. It is preferable to install a circuit breaker for each circuit. The distribution board 6 is fixed to the beam on the ceiling side of the first floor 100A or is suspended from the beam.

  The main branch line 7 is wired from the distribution board 6 on the first floor 100A to a predetermined position in each room and each level. An outlet 8 is connected to the end of the main branch line 7. The outlet 8 is provided in each level 100A, 100B, 100C of the building 100. Further, the outlet 8 is provided in each room partitioned by the partition wall W. The outlet 8 is preferably arranged at a position corresponding to the outlet in the room when the building 100 is completed. The main branch line 7 is preferably a dedicated circuit line at the time of main installation. Thereby, it can be used as it is when the building 100 is completed without changing the positional relationship of the main branch line 7 of the electric wiring structure 1 before the main installation. As the outlet 8, it is preferable to use a temporary outlet instead of a new outlet. The outlet 8 may be fixed to a plate or the like, or may be hung.

  Next, a construction method of the building 100 using the above-described electrical wiring structure 1 will be described.

  First, the process of constructing the electrical wiring structure 1 is executed (first process). This process is performed after the building construction and waterproofing construction of the building 100 are completed. In this process, the main trunk line 4, the main branch line 7 branched from the main trunk line 4 through the distribution board 6, and the outlet 8 connected to the end of the main branch line 7 are installed in the building 100. At the same time, the main trunk line 4 is connected to the lead-in line 9 via the temporary utility pole 2. At this time, the main trunk line 4 is passed through the through hole of the cradle 11a of the watt-hour meter box 11.

  Specifically, the distribution board 6 is arranged on the first floor 100A, the distribution board 6 and the main branch line 7 are connected, and the end of the main branch line 7 is extended so as to come to the outlet 8 position. . An outlet 8 is connected to the end of the main branch line 7. The external wiring portion 4A of the main trunk line 4 is wired while being covered with a CD tube or the like, and is connected to the indoor distribution board 6 through the through hole of the cradle 11a. In this state, the lead-in wire 9 is received by the temporary utility pole 2 and connected to the temporary electrical box 3. Thereby, the electrical wiring structure 1 is constructed.

  Next, a step of performing internal work using the electrical wiring structure 1 is executed (second step). A plug of an electric device is inserted into one of the outlets 8 arranged in each floor and each room, and electricity is supplied to the electric device via the lead-in line 9, the main trunk line 4, the distribution board 6, and the main branch line 7. Supply. As a result, the worker can perform internal work using electrical equipment in each floor and each living room. When the internal work is completed in one room, the electrical equipment is unplugged from the outlet 8, moved to the next room, and the internal work is performed using the outlet 8 arranged in the room. In the internal work, work such as sticking boards on walls and ceilings, sticking cloth, attaching switches, outlets, lighting fixtures, etc. is performed. In addition, if a temporary distribution board 6 or outlet 8 is used, it is replaced with a new one.

  In addition, the external work such as sealing the outer wall joint or painting the outer wall is performed in parallel with the first step, in parallel with the second step, or in the first step and the second step. It runs in parallel with both. The cradle 11a of the watt-hour meter box 11 is attached to the outer wall 100a after the external work and before the third step described later.

  After the internal work is completed, the main electrical line 4 and the main branch line 7 are used to perform the main electrical work inside and outside the building 100 (third step). As shown in FIG. 2, the permanent branch line 7 can use the positional relationship used in the previous step as it is. For the main trunk line 4, the positional relationship of the indoor wiring part 4B used in the previous process can be used as it is. The external wiring portion 4 </ b> A of the main trunk line 4 is removed from the temporary electrical box 3 and connected to a lead-in portion C for drawing in electricity provided in the building 100. The lead-in wire 9 is also removed from the temporary electrical box 3 and connected to the lead-in portion C. An electricity meter box 11 is attached to the cradle 11a and fixed to the outer wall 100a. The temporary utility pole 2 and the temporary electrical box 3 are removed from the site. As described above, the building 100 is completed.

  Next, the operation and effect of the construction method of the electrical wiring structure 1 and the building 100 according to the present embodiment will be described.

  First, a conventional method will be described for comparison. As shown in FIG. 3, a lead-in wire 9 from outside the site is connected to the temporary utility pole 2 provided outside the building 100. An extension cord such as a drum cord EC is connected to the temporary electrical box 3 of the temporary utility pole 2 for use. When the building frame is completed, the outer wall, the entrance door, the sash, etc. are attached, and the construction inside the building is started, the drum cord EC is drawn into the building from the entrance door or the sash and used inside the building. Electrical equipment for internal construction is connected to the drum cord EC and supplied with electric power. In this operation, only the drum cord EC is used, and the main trunk line 4, the distribution board 6, and the main branch line 7 are not used during the operation. The temporary utility pole 2 is removed just before the completion of the building, and the lead-in wire 9 is connected to the watt-hour box 11 installed on the outer wall 100a.

  According to such a conventional method, there are the following problems. That is, it is necessary to connect and disconnect the drum cord EC each time construction starts and ends, which is troublesome. Also, since the drum cord EC passes through the door or sash, curing (curing to prevent the drum cord EC from being damaged by being sandwiched between the door and sash, curing to prevent the sash from being damaged when the sash is a resin sash) It takes a lot of work. Furthermore, since the drum cord EC crawls on the floor endlessly, it can be unsightly, interfere with cleaning, and possibly cause injury. In particular, when the building 100 has a plurality of floors, or when the partition wall W that partitions the living room is completed due to the progress of internal work, this problem becomes more prominent. Further, a plurality of workers use electric tools or the like. When working, it is necessary to use octopus leg wiring, and this problem becomes more prominent.

  On the other hand, according to the construction method of the electrical wiring structure 1 and the building 100 according to the present embodiment, it is not necessary to draw in the power source from the temporary utility pole 2 outside the building 100 to the inside of the building using the drum cord EC. It is not necessary to go outside and connect to the external temporary electric box 3, and the entrance door and the sash are not required to be cured. In addition, as compared with the case where drum cord EC or the like is used, the cord does not crawl inside the building, so that the appearance is good, the inside of the building 100 is easily cleaned, and it is possible to prevent the cord from being tripped and to improve safety. it can. Further, since the main trunk line 4 and the main branch line 7 can be used as they are for main installation, wiring is not wasted. As described above, work efficiency can be improved.

  An outlet 8 is provided in each room partitioned by the partition wall W. Since each room is equipped with an outlet 8, it is not necessary to move between the rooms with the drum DR (while dragging the long cord EC) after being divided by the partition wall W. And loss due to catching can be reduced. In addition, the appearance, cleanability inside the building, and safety can be further enhanced.

  Moreover, the building 100 has a plurality of levels, and the outlets 8 are provided in each level. Since the outlets 8 are provided at each level, it is not necessary to move up and down the floor with the drum DR (while dragging the long cord EC), and labor can be reduced, and loss due to cord entanglement and catching can also be reduced. In addition, it is safer because there is no cord on the stairs.

  The main branch line 7 is a dedicated circuit line at the time of main installation. According to this, by using the branch line used as the dedicated circuit line, it is not entangled with other outlets and branch lines, and the time and labor for installing the outlet (replacement) can be saved.

  In addition, the main trunk line 4 is connected to the through hole of the cradle 11a of the watt-hour meter box 11 before the main installation. According to this, it is troublesome to cut and reconnect the main line when installing the watt-hour meter. Can be omitted. The cradle 11a of the watt-hour meter box 11 (that is, a base portion for fixing the watt-hour meter box 11 to the outer wall 100a) is provided after external work such as sealing of the outer wall joint portion or exterior wall painting, and It is necessary to attach to the outer wall 100a before changing from “temporary” to “main” (reconnecting lines). On the other hand, it is required to always use temporary power while internal work is being performed. Accordingly, by passing the main trunk line 4 through the through hole of the cradle 11a, the temporary power supply can be performed at any time within the above-described period for the installation work of the cradle 11a of the electricity meter box 11 in the temporary electrical wiring structure 1. Can be done without interruption, making it easier to adjust the construction date.

  The present invention is not limited to the embodiment described above. For example, the positional relationship such as the wiring described above is merely an example, and may be appropriately changed according to the building to be constructed.

  DESCRIPTION OF SYMBOLS 1 ... Electric wiring structure, 2 ... Temporary utility pole, 3 ... Temporary electrical box, 4 ... Main trunk line, 6 ... Distribution board, 7 ... Main branch line, 8 ... Outlet, 9 ... Lead-in line, 11 ... Electricity meter box 11a ... cradle, 100 ... building.

Claims (9)

An electrical wiring structure in a building under construction,
A temporary utility pole installed outside the building and receiving a service line;
From the temporary power pole, via the through hole of the wattmeter box cradle, the main trunk line wired to a predetermined position inside the building,
A distribution board disposed inside the building and connected to an end of the main trunk line;
A main branch line wired from the distribution board to a predetermined position inside the building,
An electrical wiring structure comprising: an outlet connected to an end of the main branch line. Said outlet, an electrical interconnect structure according to claim 1, characterized in that provided for each room partitioned by partition walls.   The electrical wiring structure according to claim 1, wherein the building has a plurality of levels, and the outlets are provided in each level.   The electric wiring structure according to any one of claims 1 to 3, wherein the main branch line is a dedicated circuit line at the time of main installation. After completion of the building construction and waterproofing construction of the building, the main trunk line wired to the predetermined position inside the building via the through hole of the wattmeter box cradle , connected to the end of the main trunk line A distribution board, a permanent branch line branched from the distribution board , and an outlet connected to an end of the permanent branch line are disposed, and the permanent trunk line is provided outside the building. A first step of connecting to a lead-in wire via a temporary utility pole;
A second step of supplying electricity from the main trunk line, the main branch line and the outlet to the equipment necessary for the internal work of the building, and performing the internal work;
And a third step of performing permanent electrical work inside and outside the building using the permanent trunk line and the permanent branch line. The outlet, the construction method of a building according to claim 5, characterized in that provided for each room partitioned by partition walls. The building construction method according to claim 5 or 6, wherein the building has a plurality of levels, and the outlets are provided in each level. The present setting branch lines claims 5-7 any one method of constructing a building as claimed in, which is a dedicated circuit line of the present設時. The building construction method according to any one of claims 5 to 8 , wherein the main trunk line is passed through a through hole of a cradle of a watt-hour box in the first step. .

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