| 摘要 |
PURPOSE:To facilitate installation operation of a new board when part of a board bank is replaced. CONSTITUTION:Ribs 10 are provided at edges of adjacent sides of newly installed switchboards 4' and 5' newly installed in place of the existing boards in a boardbank, and the gap S between the adjacent switchboards 4' and 5' is covered with a ceiling panel 11 and a front panel 13 fixed to the ribs 10. Thus, the width of the newly installed board is manufactured smaller than that of the existing board to provide a gap between the new board and the adjacent existing board when it is inserted to the boardbank, hereby facilitating the installation operation of the new board. |
