JPH04111208U - Distribution board and neutral terminal used for it - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a distribution board and a neutral terminal used therein, in which the correspondence between a single-pole circuit breaker and a neutral terminal is clear, and wiring work for load-side electric wires can be easily performed. thing. [Structure] A neutral terminal 5 corresponding to each single-pole circuit breaker 3 is arranged adjacent to a large number of single-pole circuit breakers 3 for branching in a distribution board. This neutral terminal 5 has one power supply side terminal board 6 and two load side terminal boards 8.
Two disconnecting sections 9 are provided, and one unit corresponds to the single-pole circuit breakers 3 on both sides. Furthermore, the outer shell of the neutral terminal 5 is the same size as the single-pole circuit breaker 3 to facilitate installation.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is based on a distribution board with a large number of branch circuits and a neutral terminal used therein. It is related to.

0002

[Conventional technology]

The conventional distribution board has a large number of neutral terminals 21 connected to single-pole circuits for branching, as shown in Figure 3. They are usually arranged separately from the road breaker 22 and gathered at the lower end of the neutral bus. However, in such a distribution board, the single-pole circuit breaker 22 for branching and the neutral terminal single pole circuit breaker 22 and the neutral terminal. It is difficult to understand the combination of It was troublesome to search for the corresponding neutral terminal 21.

0003 In addition, in such distribution boards, single-pole circuit breakers located far from the load-side wires are installed. 22 and neutral terminal 21, the wire must be stripped of its insulation for a long time. There was also the problem that wiring work required time and effort. Furthermore, if the neutral wire and neutral terminal 21 The problem is that if there is a poor connection between the bar and the connecting bar, all circuits will be affected. There was also a problem.

0004

[Problem that the idea aims to solve]

This invention solves the above-mentioned conventional problems and connects single-pole circuit breakers and neutral terminals. It is easy to understand the combination with the child, and wiring of the load side electric wires is easy. It was completed to provide the electrical panel and the neutral terminal used for it. be.

[0005]

[Means to solve the problem]

The above problem arises when each branch board has a large number of branch single-pole circuit breakers installed in parallel. Neutral terminals for single pole circuit breakers placed adjacent to each single pole circuit breaker This problem can be solved by using a distribution board that has the following characteristics. In addition, the above problem is that two tips are installed inside the outer shell of the same size as a single-pole circuit breaker. The power supply side terminal board branched into the branch terminal board, the two load side terminal boards, and these parts. It is characterized by providing two disconnection parts that open and close between the branch terminal board and the load terminal board. This can be solved by using a neutral terminal.

[0006]

【Example】

The present invention will be explained in detail below with reference to illustrated embodiments. Figure 1 shows an embodiment of the distribution board of the present invention, where 1 is a master circuit breaker; This master circuit breaker 1 includes a voltage bus R, which is the master bus 2, a neutral bus N, and a voltage Bus line T is connected. 3 is a single pole circuit breaker for branching, each single pole circuit breaker The voltage bus R and voltage bus 3 are connected alternately to both sides of the main bus 2 via branch conductive bars 4. They are connected to the voltage bus T and arranged in parallel.

[0007] Further, each single-pole circuit breaker 3 has a corresponding one adjacent thereto. Toral terminal 5 is attached. Each neutral terminal 5 has two single-pole circuit interrupters. It has two load-side terminal plates 8 corresponding to the disconnectors 3, and has two single-pole circuit breakers. One neutral terminal 5 is installed between the devices 3 and 3. In addition, the news The outer shell of the Toral terminal 5 is the same size as the single-pole circuit breaker 3, and the outer shell is the same size as the single-pole circuit breaker 3. It can be installed in the same way.

[0008] Next, the configuration of the neutral terminal will be explained with reference to FIGS. 1 and 2. 6 is a power supply side terminal board provided inside the outer shell, and the power supply side terminal board 6 is a disconnection section. The end of the side is branched into two branch terminal plates 7, 7. Also 8 is these two pieces This is a load-side terminal board provided corresponding to the branch terminal boards 7, 7. 9,9 is above A disconnection section for opening and closing between the branch terminal board 7 and the load terminal board 8 using the operating handle 10. , and are separately provided between each branch terminal board 7 and each load terminal board 8 .

[0009]

[Effect] The distribution board of the present invention configured in this way connects the load-side wires to each single pole, as in the conventional case. Connect to the load side terminal 11 of the circuit breaker 3 and the load side terminal plate 8 of the neutral terminal 5 However, in this invention, each single-pole circuit breaker 3 is A corresponding neutral terminal 5 is arranged adjacent to the single pole circuit breaker 3. In this case, the combination of the single-pole circuit breaker 3 and the neutral terminal 5 is clear. others This makes it easy to disconnect the neutral pole when measuring the insulation resistance of each branch circuit. , insulation resistance measurements, etc. can be performed reliably and easily.

0010 In addition, since the single pole circuit breaker 3 and the neutral terminal 5 are located adjacent to each other, When connecting the load-side wires, the length of the coating to be removed is short and wiring work is easy. It is what it is.

[0011] Furthermore, if there is a connection between the neutral bus N and the branch bar that connects the neutral terminal 5, Even if a defect occurs, each neutral terminal 5 is connected to the neutral bus N separately. Therefore, there is an advantage that the trouble is limited to only the branch circuit where the connection failure has occurred.

0012 Next, the neutral terminal of the present invention according to claim 2 has a single power supply side terminal board 6. Therefore, connection with the neutral bus N is easy, and since there are two terminal boards 8 on the load side, It can be connected to two single-pole circuit breakers 3, 3 separately, and each branch terminal board 7, 7 can be connected to each There is a disconnection section 9 between the load side terminal boards 8 and 8 that can be connected and disconnected using the operation handle 10. Since they are provided separately, each branch circuit can be disconnected.

[0013] In addition, the two load-side terminal boards 8, 8 are arranged parallel to each other on the left and right sides, and Since the corresponding two disconnecting sections 9 and 9 are also arranged in parallel, the connection to the single pole circuit breaker 3 is The correspondence relationship is clear. Moreover, the number of neutral terminals 5 is single-pole circuit breaking. It only requires half of the circuit breaker 3, and the size of the outer shell is the same as that of the single-pole circuit breaker 3, making it easy to install. It is easy and has an excellent appearance.

[0014]

[Effect of the idea] As is clear from the above explanation, the distribution board of the present invention is a unit that constitutes a branch circuit. The correspondence between the pole circuit breaker and the neutral terminal can be clearly defined, and the insulation resistance can be This has the effect of making measurements easier and wiring work easier as well. Also, the second aspect of this invention is Neutral terminals can accommodate two single-pole circuit breakers and are easy to wire. There are effects that can be achieved. Therefore, although the present invention solves the problems of conventional methods, its practical value is extremely high. It's a big thing.

[Brief explanation of drawings]

FIG. 1 is a front view showing an embodiment of a distribution board of the present invention.

FIG. 2 is a sectional view showing an embodiment of the neutral terminal of the present invention.

FIG. 3 is a front view showing a conventional distribution board.

[Explanation of symbols]

1 Main circuit breaker 2 Main busbar 3 Single pole circuit breaker 4 Conductive bar for branching 5 Neutral terminal 6 Power supply side terminal board 7 Branch terminal board 8 Load side terminal board 9 Disconnect section 10 Operation handle 11 Load side terminal

Claims (2)

[Scope of utility model registration request] [Claim 1] In a distribution board in which a large number of single-pole circuit breakers (3) for branching are installed in parallel, the neutral terminal (5) corresponding to each single-pole circuit breaker (3) is used to interrupt each single-pole circuit. A distribution board characterized by being placed adjacent to the container (3). [Claim 2] Inside the outer shell of the same size as a single-pole circuit breaker, there is a power supply side terminal board (6) whose tip is branched into two branch terminal boards (7), (7), and two Load side terminal board (8), (8)
and two disconnecting sections (9) for opening and closing between the branch terminal board (7) and the load-side terminal board (8).