20080202776 | FIRE AND SMOKE CONTROL SYSTEM FOR A LONG PASSAGE - A fire and smoke control system for a long passage is utilized in a long passage with an inlet and an outlet. The fire and smoke control system for a long passage includes a first water spray curtain apparatus, a second water spray curtain apparatus, and at least one third water spray curtain apparatus. The first water spray curtain apparatus is fixed over the inlet, and the second water spray curtain apparatus is fixed over the outlet. The third water spray curtain apparatus is fixed on the top of the long passage between the inlet and the outlet to divide the long passage into several sections. | 08-28-2008 |