| 摘要 |
A fire protection curtain (1) comprises at least two separated outer breadths (2) of temperature-resistant material having distributed pores, holes or openings (3) over their surfaces. Between the breadths in full height and width is provided an intermediate, especially textile, piece (5). The breadths and at least textile piece (5) are wound onto at least one shaft (8). There also provided a spacer system (10, 10', 10'') due to which the outer breadths (2) at least in the event of a fire maintains convection through the channels (4) of the outer breadths. |
