| 摘要 |
A foam glass molded fire resistant cable duct made of at least two elongated modules having one or more elongated internal channels adapted to receive a cable. The foam glass material has a glassy, water tight surface. The modules have an outer surface and one or more inner half channels integrated in the internal surface of the modules, for example half cylindrical recesses or half rectangular recesses. The modules have outer edges that align with a corresponding module when two such modules are assembled to form the duct, with the half recesses aligning to form an elongated channel for the cables. An insert may be arranged intermediate the modules to create several layers of channels. The duct may be suspended from the ceiling of a tunnel. |
