| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a distribution board capable of attaining space saving, high efficiency, and high safety by miniaturizing the board with a layout structure using a gutter space in the distribution board in common. <P>SOLUTION: A main breaker 5 in the distribution board is disposed at the central lower portion in the distribution board, and a three-stage bus-bar 3 is disposed by being divided to both ends of the distribution board to form a gutter space 4 for wiring in the center. The secondary connection portion of a plug-in branch breaker 2 connected to the single side of the three-stage bus-bar 3 distributed to both the ends is made to serve as a gutter space 4 side for wiring at its inside, that is, at middle portion, thus using the gutter space 4 for wiring the main breaker 5 and the gutter space 4 for wiring the branch breaker 2 in common. The bus-bars 11 consisting of a rectangular conductor of a plurality of phases are disposed in a vertical stage form at a prescribed interval by miniaturizing the distribution board, thus attaining space saving and high workability. By using a middle cover 20 suited to the distribution board, great importance is placed on safety. <P>COPYRIGHT: (C)2004,JPO |
