| 摘要 |
PROBLEM TO BE SOLVED: To provide a distribution board for a housing which inhibits heat generation of conductive bars without conducting large scale design changes.SOLUTION: In a single phase three lines type cable way L, three conductive bars 3 are overlapped in a forward-backward direction and each of the conductive bars extends to left and right sides in a belt like manner in the overlapping state. Further, multiple branch breakers 2 are disposed at both sides of the conductive bars 3 in a vertical direction. In the single phase three lines type cable way L, heat radiation members 4 are placed between the conductive bars 3 and between the conductive bar 3 at the deepest part and a panel 5 at a rear part. Each heat radiation member 4 is formed by a bar made of a synthetic resin and a surface of the heat radiation member 4 is covered by an insulation heat radiation member 5b having thermal emissivity equal to or higher than a specific value. Each heat radiation member 4 is placed to adhere to the conductive bars 3 at the front and rear sides thereof and one of the heat radiation members 4 is placed to adhere to the conductive bar 3 and the panel 5. |
