GB 51251-2017 第9.0.4条
| **** | During acceptance of smoke control systems (e.g., pressurized air supply systems for stairwells and vestibules), the residual pressure values shall be tested: the pressure difference between the vestibule, shared vestibule, enclosed refuge floor (room) and the corridor shall be 25Pa~30Pa; the pressure difference between the stairwell and the corridor shall be 40Pa~50Pa. |