| 摘要 |
<p>PURPOSE: To easily mount an isolated-phase bus via a wall penetrating hole even if the positions of a building wall and the hole are deviated by mounting bellows having elasticity and bent stretchable in the gap between the bus and the through hole of the wall. CONSTITUTION: Rubber bellows 19 having elasticity and radially formed to regulate stretching and a bolt 20 are fixed in a gap between a flange 14 mounted by welding to the outer periphery of the sheath of an isolated-phase bus 13 and a flange 18 mounted by welding 17 to a through frame 16 embedded at a building wall 15 side. Thus, even if the manufacturing error occurs at the wall 15 and the position of a wall through hole, the error correction at the site can be performed. Thus, even if the wall 15 and the position of the hole are deviated, the bus 13 can be easily mounted in the hole.</p> |
