JPH10155213A - Distribution switchboard - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a distribution switchboard with a conductive bar that can be used without being limited by the current capacity of a main switcher. SOLUTION: A distribution switchboard is formed by arranging two rows of branch breaker 3 for supplying a power supply from a main switcher to each load circuit, by branching it inside a box body 2, by separating them by an arbitrary interval while power supply terminals oppose each other symmetrically at left and right, and by connecting the main switcher and the branch breaker 3 with conductive bars 8, 9, and 10 where master bars 4, 5, and 6 and a branch 7 that are branched from the master bars 4, 5, and 6 are integrally formed. The plate thickness of the master bars 4, 5, and 6 of the conductive bar and that of the branch bar 7 are formed in different dimensions. The load side terminal of the main switcher and the power supply side terminal of the branch breaker 3 are connected by the conductive bars 8, 9, and 10 with the master bars 4, 5, and 6 with a plate thickness suited for the current capacity of the main switcher.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a distribution board in which a power supply from a main switch is branched to branch breakers for respective load circuits, and the main switch and each branch breaker are connected by a conductive bar. .

[0002]

2. Description of the Related Art Conventionally, a distribution board has been disclosed in Japanese Unexamined Utility Model Publication No.
As shown in the publication, in order to branch the power from the main switch to the branch breaker (4) for each load circuit, the RST is connected between the main switch and each branch breaker (4) by the main bar (13) for each power line. ), (14), and (15) are connected to a branch bar (16) projecting integrally.

[0003]

SUMMARY OF THE INVENTION
In the conventional distribution board described in JP-A-58011, the thickness of the main bar portion and the branch bar portion of the conductive bar in which the main bar and the branch bar are integrally formed are uniform, and the current capacity of the main switch is generally reduced. There is a disadvantage that it can be used only for a circuit having a small capacity of 100 A or less.

[0004]

SUMMARY OF THE INVENTION In view of the above-mentioned problems of the conventional switchboard, an object of the present invention is to provide a switchboard having a conductive bar which can be used without being limited to the current capacity of the main switch. By providing the branch breaker for branching the power from the main switch inside the box body and supplying it to each load circuit,
Two rows are arranged at arbitrary intervals with the power supply terminals facing each other symmetrically or vertically, and a main bar between the main switch and the branch breaker, and a branch bar branched from the main bar. In the distribution board connected by the conductive bar formed integrally, the plate thickness of the main trunk bar of the conductive bar and the plate thickness of the branch bar are formed with different dimensions.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A load terminal of a main switch is connected to a power supply terminal of a branch breaker by using a conductive bar having a main bar having a thickness suitable for the current capacity of the main switch.

[0006]

1 to 3 show an embodiment of a distribution board according to the present invention.
Shown in Hereinafter, the present invention will be described with reference to these drawings.

The distribution board 1 includes a branch breaker 3 for branching power from a main switch (not shown) and supplying the power to each load circuit inside the main body 2 of the box. Two rows are arranged at an arbitrary interval in an opposed state, and main bars 4, 5, and 6 are provided between the main switch and the branch breaker 3, and a branch bar 7 is branched from these main bars 4, 5, and 6. Are connected by conductive bars 8, 9, 10 integrally formed.
The thickness of the main bars 4, 5, and 6 of the conductive bar and the branch bar 7
Are formed with different dimensions.

A load terminal of the main switch and a power supply terminal of the branch breaker 3 are connected by using conductive bars 8, 9, and 10 having main bars 4, 5, and 6 having a thickness suitable for the current capacity of the main switch. Connect. The plate thickness of the main bars 4, 5, 6 increases as the current capacity of the main switch increases, for example, 50 A, 1
2mm at 00A, 6mm at 200A, 8mm at 400A
And so on.

Note that the shape of the conductive bar is not limited to this embodiment, and the main bar and the branch bar are integrally formed, and the main bar and the branch bar have different plate thicknesses without departing from the gist of the present invention. It can be changed appropriately within the range.

[0010]

As described above, in the distribution board according to the present invention, a branch breaker for branching the power from the main switch and supplying the load to each load circuit inside the box body is symmetrical or symmetrical. The power supply terminals are arranged in two rows at an arbitrary interval in a state where they face each other, and a main bar between the main switch and the branch breaker, and a branch bar branched from the main bar are integrally formed. In the distribution board connected by bars, by forming the plate thickness of the main bar of the conductive bar and the plate thickness of the branch bar with different dimensions, if the conductive bar according to the current capacity of the main switch is used. It can be used from small capacity to large capacity without being limited to the current capacity of the main switch.
There is an effect that it is possible to reliably prevent the occurrence of a burnout accident of the load equipment due to the neutral phase loss of the single-phase three-wire wiring.

[Brief description of the drawings]

FIG. 1 is an explanatory view of one embodiment of a distribution board according to the present invention.

FIG. 2 is an explanatory sectional view of FIG.

FIG. 3 is an enlarged explanatory view of a main part of FIG. 2;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Distribution board, 2 ... Box body, 3 ... Branch breaker, 4, 5, 6 ... Main bar, 7 ... Branch bar,
8, 9, 10 ... conductive bar.

Claims (1)

[Claims] 1. A branch breaker for branching power from a main switch and supplying it to each load circuit inside a box body, at an arbitrary interval with power terminals facing each other symmetrically or vertically. A power distribution panel in which a main bar and a branch bar branching off from the main bar are connected by a conductive bar integrally formed between the main switch and the branch breaker. A distribution board characterized in that the thickness of a main bar and the thickness of a branch bar are formed with different dimensions.