| 摘要 |
<p>The fire prevention cable duct (1) comprises a housing (2) opened at both ends and has an inner chamber (3). Two fire belts (5) are also provided, which are made of an intumescent fire protection material. The fire belts are spaced from each other and mounted at the inner side of the housing. The intumescent fire protective material is expanded during high heat or in the event of fire. The fire belts separate the inner chamber of the housing during high heat or in event of fire completely in cable direction (X).</p> |
