| 摘要 |
PROBLEM TO BE SOLVED: To provide a supporting mechanism of a power supply bus of a simple configuration in which the used amount of an insulating material is less, the manufacturing cost is reduced, and ventilation for a bus support part is improved. SOLUTION: A power supply bus 32 in which the surfaces in width direction of a band-like conductor face each other is supported in a switchboard. An insulating block 51 comprising an U-shaped groove so formed as to fit in the side edge of the power supply bus 32 is fitted on both side edges of each power supply bus 32. The insulating blocks 51 are collectively supported by a support member 52 from the rear side of the insulating blocks 51 fitted in one side edge, while the insulating blocks 51 are collectively supported by a support member 53 from the rear side of the insulating blocks 51 fitted in the other side edge. The power supply bus 32 is clamped and held by clamping with a clamping member 54 inserted in the support members 52 and 53 on both sides, while the support member 52 is tightly fitted in the switchboard so that the power supply bus 32 is supported at a prescribed place. COPYRIGHT: (C)2003,JPO
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