GB 50261-2017 第5.8.5条
| **** | During commissioning of the wet alarm valve assembly, water is discharged from the test connection; when the inlet pressure of the wet alarm valve is greater than 0.14 MPa and the discharge flow rate is greater than 1 L/s, the alarm valve shall start promptly; the water motor alarm with a retard chamber shall sound the alarm bell within 5–90 s. |