| 摘要 |
The double glazed panel (30) is installed in a plastic frame assembly (20). The frame assembly is fitted into a plastic window or door frame (10). The plastic elements of the frame and surround are made from extruded rigid PVC material. Flexible moisture seals (51, 52) in the frame (20) grip the double glazed panel (30). Sealing strips (53, 54) in the frames (10, 20) seal the edges of the window or door, when closed. Attached to the stationary frame (10) is an induction loop detector assembly (80). Attached to the inner edge of the door or window frame (20) is a permanent magnet (81). If the door or window is opened after the alarm system has been armed, the magnet moves away from the detector and the alarm system is triggered.
|
