| 摘要 |
<p>A building wall has an electrical cable passing through a wall, from which it is protected by a corrugated conduit pipe with peaks and troughs. The conduit is anchored in the wall by a surrounding bush fitting (5) with a series of flex finger grips (19) engaging in the troughs. The finger grips engage in troughs which are esp. located away from the conduit pipe end. The bush has two sections of different inner diameter.</p> |
