| 摘要 |
<p>PURPOSE:To obtain a structure which sufficiently withstand a water washing system and has high reliability by drawing around and wiring a bus bar for power feeding into a dust collecting chamber, leading a power feed cable into a wiring space isolated from this dust collecting chamber and connecting this bus bar and the power feed cable via a through-bushing. CONSTITUTION:The bus bar 18 for power feeding corresponding to an electrifying section 2 and dust collecting section 3 is drawn around and wired in the dust collecting chamber 1a of a unit case 1. The bus bar 18 for power feeding is insulated and supported to a frame 20 via magnetic insulators 19. On the other hand, the power feed cable 11 connected to an external high-voltage power source 7 is led into the wiring space 1c of the hermetic structure partitioned within the base 1b of the unit case 1 isolated from the dust collecting chamber 1a. Further, the power feed cable 11 and the bus bar 18 for power feeding are connected to each other via the through-hole bushing 15 installed on a base 1c. A water washing nozzle 22 disposed at a water feed piping 21 is oppositely disposed near the magnetic insulators 19 and the through-bushing 15. As a result, the structure which sufficiently withstands the water washing system is obtd.</p> |
