| 摘要 |
PROBLEM TO BE SOLVED: To recycle a remaining portion, after use, of a conductive bar of standard size and reduce manufacturing cost by forming a connecting part which is capable of connecting with the conductive bar connected to a main switch at both end parts of the main bar part of the conductive bar. SOLUTION: In this distribution board 1, branch breakers 3, 4 which branch electric power from a main switch to supply it to respective load circuits are disposed inside a casing 2 in two rows at arbitrary intervals in such a condition as power terminals 3a, 4a face with each other, symmetry to the right and left. An S-phase conductive bar 6 of regular size is cut by a necessary length corresponding to the number of the branch breakers 3, 4 to be used as an S- phase conductive bar 6' of the distribution board 1, and is used as an S-phase conductive bar of another distribution board by inverting the vertical direction of a remaining portion and connecting the threaded hole 6D of a connecting part 6B to the conductive bar which is connected to the S-phase of the main breaker of another distribution board. The remaining portion of the conductive bar, after used, of standard size can be recycled as a conductive bar of another distribution board or the identical distribution board, therefore, it is possible to reduce manufacturing cost. |
