First, the maintenance of the protective partition environment:
(1) Check the necessary access to the protected area should be unobstructed; all kinds of alarm signals and safety signs should be clean, complete and eye-catching; lighting and accident lighting should be intact.
(2) Check the smoke, heat detectors should be clean, no dust and environmental pollution (such as light dust, paint, etc.) to ensure its sensitivity; check the nozzle orifice should not be blocked.
Second, the maintenance of fire extinguishing agent storage containers:
Each year the fire extinguishing agent storage container is weighed or checked for storage pressure. If it is below the allowable limit, it must be refilled or replaced.
Third, the maintenance of the fire control panel:
(1) Check the reliability of the power supply and indicator lights;
(2) Whether the starting test of the fire extinguishing control panel is normal.
Fourth, the maintenance of the system:
(1) Check that the connecting wires of the solenoid valve and the control valve are in good condition and that the terminals are loose or fall off.
(2) Remove the solenoid valve from the startup cylinder and check for flexible operation.
(3) Remove the connection device between the alarm and control system and the actuator and use the analog test method to check the sensitivity and operational reliability of the automatic control, alarm and delay functions.
(4) Check the flexible reliability of the storage container opening mechanism.
(5) Check the fire extinguishing agent storage vessel valve and starter vessel valve safety device and the line valve relief vent.
(6) Check the appearance of all cylinders for corrosion and plating off.
(7) Visually inspect all hoses in the system. If any defects are found, replace or perform a pressure test on the hoses.
(8) Remove the check valve from the system and check its seal and opening flexibility.
(9) Check whether the opening action of all selector valves is flexible and reliable by pneumatic and manual methods.
(1) Check the necessary access to the protected area should be unobstructed; all kinds of alarm signals and safety signs should be clean, complete and eye-catching; lighting and accident lighting should be intact.
(2) Check the smoke, heat detectors should be clean, no dust and environmental pollution (such as light dust, paint, etc.) to ensure its sensitivity; check the nozzle orifice should not be blocked.
Second, the maintenance of fire extinguishing agent storage containers:
Each year the fire extinguishing agent storage container is weighed or checked for storage pressure. If it is below the allowable limit, it must be refilled or replaced.
Third, the maintenance of the fire control panel:
(1) Check the reliability of the power supply and indicator lights;
(2) Whether the starting test of the fire extinguishing control panel is normal.
Fourth, the maintenance of the system:
(1) Check that the connecting wires of the solenoid valve and the control valve are in good condition and that the terminals are loose or fall off.
(2) Remove the solenoid valve from the startup cylinder and check for flexible operation.
(3) Remove the connection device between the alarm and control system and the actuator and use the analog test method to check the sensitivity and operational reliability of the automatic control, alarm and delay functions.
(4) Check the flexible reliability of the storage container opening mechanism.
(5) Check the fire extinguishing agent storage vessel valve and starter vessel valve safety device and the line valve relief vent.
(6) Check the appearance of all cylinders for corrosion and plating off.
(7) Visually inspect all hoses in the system. If any defects are found, replace or perform a pressure test on the hoses.
(8) Remove the check valve from the system and check its seal and opening flexibility.
(9) Check whether the opening action of all selector valves is flexible and reliable by pneumatic and manual methods.
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