JPS63253810A - Indoor distribution system - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an indoor wiring system for each floor in a building having a relatively large floor area and a large number of tenants on each floor. The purpose is to be able to easily respond to increases and decreases in electrical load in each tenant, and to easily and smoothly accomplish wiring changes in response to increases and decreases in electrical load and layout changes.

[Conventional technology]

Indoor wiring in large buildings basically takes high-voltage or ultra-high-voltage power from the outside, steps it down to a certain voltage in substation equipment such as an electrical room installed in the building, and then sends it to each floor via a switchboard. Electricity is supplied in parallel to the branch boards installed on each floor, and the power supplied to the branch boards on each floor is supplied in parallel to a number of distribution boards installed corresponding to the individual tenants on each floor. . Furthermore, the power supplied to tenants on each floor in this manner can be roughly divided into two types: electric power and dynamic/internal power.

In large buildings, it is necessary to install multiple power cables from one specified location to each floor, so the wiring from the switchboard to the branch board on each floor must be built in advance at a designated location in the building. This is done in common through an electric shaft, and as a matter of course, the branch panels for each floor are installed in this electric shaft.

Each distribution board is pulled out from the branch board to accommodate a large number of tenants, and is installed together with the branch board in the electrical shaft.
From the distribution board installed in this electric shaft part, it is connected via floor-mounted piping wiring that is routed through floor-mounted piping, or ceiling piping wiring that is routed through in-ceiling piping installed in the ceiling. It is intended to supply power to a large number of loads in tenant 1-.

Conventional wiring methods from the distribution board for electrical loads such as electric lights, office equipment, and air conditioning equipment in each tenant include floor piping wiring method, floor duct method, undercarpet method, and raised floor method. There are internal wiring methods, etc.

As shown in FIG. 4, the most common floor-driven piping and wiring system connects piping and wiring 8a in piping that has been driven and buried in the floor 8 in advance from the distribution board 3 installed in the electric shaft 1. In addition to supplying power to loads 5 such as floor outlets through the power distribution board 3 to loads 5 installed in the ceiling 7 such as electric lights and packaged air conditioners, pipe wiring of in-ceiling piping arranged in the ceiling 7 is supplied from the distribution board 3 to the loads 5 such as electric lights and package air conditioners. The configuration is such that power is supplied through 7a.

[Problems to be solved by the invention] This floor-driven piping and wiring method has the advantage of being able to accomplish wiring work at a low cost, but on the other hand, it is difficult to take measures for office automation such as flexibility in the wiring extraction location and the amount of wiring storage. Due to this problem, indoor wiring systems such as the above-mentioned floor duct system, undercarpet system, and free access system have come to be used.

In the case of the floor duct method, compared to the floor-driven piping and wiring method, the degree of freedom in taking out the wiring and the capacity for wiring are slightly improved, and the construction cost per unit area is slightly higher, but the interior design In addition, in the case of the undercarpet method, it is possible to obtain a sufficient degree of freedom in taking out wiring and to improve the interior design, but the improvement in wiring capacity is small. At the same time, the construction cost per unit area is only slightly higher.Furthermore, in the case of the raised floor wiring method, it is possible to fully obtain all of the freedom of wiring extraction, wiring capacity, and improvement of interior design. However, on the other hand, the construction cost per unit area is extremely high, about three times that of the floor-mounted piping and wiring method.

As described above, each of the conventional indoor wiring systems has its advantages and disadvantages, and it cannot be said that the degree of freedom to accommodate changes in the layout of electrical equipment within each tenant is necessarily sufficient. In other words, in the conventional wiring method described above,
Changes in the layout of electrical equipment within the tenant or OA
In response to the need for changes in equipment installation, etc., by installing power supplies for OA equipment, power supplies for air conditioning equipment, and changing/installing lighting equipment, the common distribution board 3 in the electric shaft l It is necessary to perform piping wiring work between the and each load 5, remodeling the ceiling wiring and floor wiring, and exposing wiring from the floor outlet, which makes the work large-scale and increases the construction cost. Additionally, the main breaker must be turned off during construction, resulting in a power outage for other tenants, and the wiring becomes a hindrance to walking, resulting in damage to the wiring and poor insulation. Furthermore, it was impossible for each tenant to independently manage the power supply of important equipment, and furthermore, there were problems such as an increase in exposed wiring in visible parts of the room, making it unsightly.

The cause of this problem with the prior art is that the distribution boards for each tenant on one floor are installed on electrical shafts at specific locations on that floor. Since the tenant distribution boards are installed in electric shafts, the indoor wiring for each tenant must be done from this electric shaft part, which makes the wiring inside the tenant longer than necessary and the long The problem lies in the need for fixed piping to accommodate the new wiring.

In addition, in buildings with large floor areas, there are cases where multiple distribution boards are distributed on each floor, but since the distribution boards are deep and there are many pipes and wiring going up and down, there are few walls that can accommodate them. However, it was not possible to arrange the building to meet the needs of each tenant.

The present invention was devised to solve the problems and inconveniences in the conventional example described above, and it shortens the length of the wiring between the distribution board in each tenant and a large number of loads, and also The technical challenge is to achieve this by utilizing the ceiling space on the floor.

[Means and effects for solving the problems] Hereinafter, an indoor wiring system according to the present invention will be explained with reference to drawings showing embodiments of the present invention.

The means of the present invention is to arrange a large number of distribution boards 3 for each tenant 6, which are branched in parallel from a branch board 2 provided on each floor in the electrical shaft 1 of the building, on the ceiling 7 of the corresponding tenant 6. It is in.

The electrical capacity of each distribution board 3 in the present invention is set according to the floor area of the smallest tenant 6, and therefore one distribution board 3 is not necessarily arranged in one tenant 6. However, two or more distribution boards 3 may be distributed and arranged in one tenant 6 as necessary. In short, each distribution board 3 in the present invention is placed on the ceiling 7 of the corresponding tenant 6 section, and supplies power to the load 5 only of this corresponding tenant 6 section.

As is clear from comparing FIG. 3 showing the basic concept of the present invention with FIG. 5 showing the basic concept of the prior art, the wiring between the electric shirt l-1 and each tenant 6 is In the case of the conventional example shown in FIG. 5, a large amount of wiring is required for a large number of loads 5, whereas in the case of the present invention shown in FIG. There is only one main line, and in the case of the present invention, the length of the main line is longer than in the conventional example, but the wiring between the distribution board 3 and the large number of loads 5 is longer. The length will be much shorter.

Furthermore, since the distribution board 3 is placed on the ceiling 7 of the corresponding tenant 6, wiring changes corresponding to changes in the layout of electrical equipment within the tenant 6 can be achieved only within this tenant 6. There is no need to change the wiring between the distant electrical shaft 1, and even more so when installing electrical equipment in the corresponding tenant 6, all you need to do is install new wiring from the distribution board 3 located on the ceiling 7. Therefore, the construction work can be carried out only within each tenant 6, and there is no need to interrupt the power supply to other tenants 6, even temporarily.

Furthermore, since the space behind the ceiling 7 of the building has a dead space of approximately 1 m from the viewpoint of the architectural structure, each distribution board 3 must be installed on the ceiling 7 with sufficient margin. At the same time, it is also possible to easily change the wiring for a large number of loads 5 from this distribution board 3.Furthermore, since there is sufficient space for wiring installation, it is easy to change the wiring to accommodate the addition of loads 5. It is possible to sufficiently cope with the increase.

[Example] Fig. 2 shows a concrete implementation configuration of the present invention system, in which the distribution board 3 arranged on the ceiling 7 of each tenant 6 is connected to the distribution board 2 of each floor of the electric shirt) l. The wiring between this distribution board 3 and a large number of loads 5 is connected to the ceiling piping wiring 7a.
For loads 5 such as lighting fixtures and package air conditioners installed in
For a, the pillar driven piping wiring 9 is installed in advance in the pillar 9.
This is achieved through the partition IO for the load 5 such as a wall outlet.

In the case of the embodiment illustrated in FIG. 2, the wiring other than the pillar-mounted piping wiring 9a and the floor-mounted piping wiring 8a can be changed freely through the back of the ceiling 7 in response to fluctuations in the load 5 in the tenant 6. The wiring work can be completed within the range of each tenant 6, and there is no need to perform main wiring work between the electric shirts and the electric shirts.

In addition, regarding the installation of OA equipment that is likely to be expanded,
Recently, there is a tendency to install this OA equipment in a private room divided by a partition 10, so wiring work for the OA equipment to be created can be easily accomplished by using this partition 10 without spoiling the aesthetics of the interior. become.

〔Effect of the invention〕

As is clear from the above explanation, the indoor wiring system according to the present invention allows the wiring work associated with the addition of power supply circuits and changes in the layout of task loads in each tenant to be completed by performing the work only within that tenant. − It can be implemented in a short period of time and at low cost without causing any inconvenience to other tenants, and it can also be easily handled by changing the wiring in the ceiling when changing the installation location of a large number of loads. This makes the wiring work easier and eliminates exposed wiring.Furthermore, the distribution board is arranged for each tenant, so a breaker must be installed in each tenant. This has many excellent effects, such as allowing tenants to independently manage the power supplies for important equipment.

[Brief explanation of the drawing]

FIG. 1 is an explanatory diagram showing the basic arrangement of the present invention. FIG. 2 is an explanatory diagram of a specific example of indoor wiring, showing one example of implementing the method of the present invention. FIG. 3 is an explanatory diagram showing the basic wiring configuration of the system of the present invention. FIG. 4 is an explanatory diagram showing the basic configuration of a conventional floor-driven piping and wiring system. FIG. 5 is an explanatory diagram showing the basic wiring configuration of the wiring method shown in FIG. 4. Explanation of symbols 1; Electrical shaft; 2; Branch board; 3; Distribution board; 4; Distribution board; 5; Load; 6; Tenant; 7; Ceiling; 7a; Ceiling piping and wiring; 8; Floor; 8a; Included piping wiring, 9; Pillar, 9
a; Pillar driven piping wiring; 10; Partition. Applicant: Takenaka Kogyo Co., Ltd.:? ′! P/
2.
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Claims (1)

[Claims] An indoor power distribution system in which multiple distribution boards for each tenant are branched out in parallel from a branch board installed on each floor of the building's electrical shaft and placed on the ceiling of the corresponding tenant.