| 摘要 |
PCT No. PCT/SE85/00373 Sec. 371 Date May 19, 1986 Sec. 102(e) Date May 19, 1986 PCT Filed Sep. 27, 1985 PCT Pub. No. WO86/02119 PCT Pub. Date Apr. 10, 1986.Apparatus for the fire-sealing of a lead-through for at least one cable through a building framework comprising an inner pipe filled with precompressed elastic fire-resistant foam material and an outer pipe surrounding the inner pipe. The apparatus is mounted in a hole in the framework and the two pipes are connected to respective outer walls of the framework. Between the pipes there is a gap admitting relative movement of the pipes. The gap is sealed by the foam material filling the inner pipe and a portion of which extends into the outer pipe and presses against its inner surface. |
