Fire pump control cabinetMechanical emergency pump start function should be set up, and it should be ensured that in case of control circuit failure in the control cabinet, personnel with management authority can start the fire water pump in emergency situations. When starting the mechanical emergency, it should be ensured that the fire pump works normally within 5 minutes after the alarm. The weak electrical signals such as pressure switches and flow switches, as well as hard cables, are used to automatically start the fire pump through relays. If the weak electrical signals fail or the relays fail to automatically or manually start the fire pump, the mechanical emergency starting device set up in the fire pump room should be relied upon to start the fire pump.

When the control circuit inside the fire pump control cabinet fails and cannot automatically start the fire pump, immediate repair to eliminate the circuit fault will be limited by personnel quality and time. Therefore, it is impossible to carry out the repair in emergency situations of fire. Therefore, the provisions of this article enable the fire pump to be forcibly started as long as the power supply is normal, regardless of the control circuit, to ensure the timeliness of fire extinguishing.

The mechanical emergency starting device must be operated by authorized personnel, and the time from alarm to normal operation of the fire pump should not exceed 5 minutes. This time may include the time for management personnel to travel from the control room to the fire pump room, as well as the time for the pump to start and work normally.