First, system inspection (general inspection)
(a) appearance inspection
1. Check whether all devices (such as the detector base, terminal box, manual button, and alarm controller, etc.) are fully installed and wired and ready for wiring.
2. Whether the system ground conforms to the requirements of the specification: when the automatic fire alarm system adopts a special grounding device, its resistance value shall not be greater than 4 ohms, and when it is used as a common grounding, it shall not be greater than 1 ohm; when fire-fighting electronic equipment uses AC power, its metal shell and metal bracket The ground should be connected to the protective grounding conductor (PE wire).
3. Check the shape of the detector for damage. If there is damage, it should be recycled by the manufacturer or professional maintenance company. This is because some ionic detectors contain radioactive substances.
4. Check whether the shape and structure of various knobs, switches, plug-ins, etc. of the alarm controller are in good condition.
(II) Function and performance check of alarm controller
1. Through the manual inspection device on the fire alarm controller,
Check whether the alarm controller's functions are normal, including whether the fire alarm, various types of fault monitoring functions, and silence functions are normal.
2. Cut off the AC power supply and observe that the standby power supply is automatically put into operation and all functions are normal.
3. Observe whether the indication value of each voltmeter and current meter is normal.
4. All indicators, switches, and buttons should be free of damage and poor contact.
5. When the function and performance of the alarm controller are checked through a manual inspection device, the automatic fire extinguishing, output control contacts, etc. shall not operate, and the clock shall not stop timing.
(III) System Function and Performance Check
1. When carrying out the actual simulation test of the detector, it is observed whether the sound and light display alarm of the alarm controller is normal, and whether the correspondence between the detection area number and the construction site is accurate.
2. When unscrewing any fire detector, there should be a fault display on the alarm controller.
3. If the automatic alarm system is connected with the automatic fire extinguishing device, the electrical connection between the automatic fire extinguishing device and the alarm controller shall be cut off before performing the system function and performance check. However, the status of the fire extinguishing control contact output from the alarm controller shall be checked, such as checking the output voltage. Whether the value or current value meets the requirements, etc.
Second, regular inspection
After the automatic fire alarm system is put into operation, regular inspections and tests shall be conducted to ensure the normality and reliability of the system.
(a) Daily inspection
The daily use unit should check whether the functions of the alarm controller and the zone alarm controller (such as the fire alarm function, fault function, reset, silence, etc.) are normal and whether the indicator light is damaged. The inspection method is as follows: Self-inspection and inspection functions can be checked by pulling the self-test and inspection switch to check whether the function is normal; if there is no self-test or inspection function, the method of adding smoke and heating to the detector can be used. The detector alarms to check if the function of the alarm controller or zone alarm controller is normal. If it is found to be abnormal, it should be recorded in the daily registration form and processed in time.
(b) Weekly inspection
Perform main and standby power automatic switching tests.
(III) Quarterly tests and inspections
1. According to the requirements of the instruction manual, the use of special smoke, heating tester (without special tools can be used electric hair dryer and other appliances) staged batch test detector action is normal, the indicator shows whether clear. Found that the fault should be replaced promptly.
2. The sound and light display of the test fire alarm device is normal. In the actual operation process, all tests or partial tests can be performed at once, but care should be taken to make arrangements before the test so as to avoid unnecessary panic and confusion.
3. Test the fire alarm system, water flow indicator, pressure switch and other alarm functions on the automatic sprinkler system pipe network, and the signal display is normal.
4. One or two charge and discharge tests are performed on the standby power supply, and the main and backup power supplies are switched automatically once or twice. The test method is: cut off the main power supply, see if switching to standby power supply, whether the standby power indicator light is on, and then restore the main power supply after 4 hours to see if it is automatically converted, and then check whether the standby power supply is normally charged.
5. The system with linkage control function shall check the display function of the fire control system of the fire control equipment automatically or manually. 1 Control equipment for smoke prevention equipment, electric fire dampers, electric fire doors, fire shutters, etc.; 2 Control equipment for indoor fire hydrants, automatic sprinkler systems, etc.; Control of fixed fire extinguishing systems such as halogenated alkanes, carbon dioxide, dry powder, foam, etc. Equipment; 4 fire accident broadcast, fire accident lighting and light evacuation signs.
6. Forced fire elevators stopped at the first floor.
7. Fire-fighting communications equipment should be conducted in the fire control room for conversational phone calls.
8. Check whether all transfer switches, such as power switch, fire switch, smoke control, fire door, fire shutter switch, alarm switch, emergency lighting switch, etc. are normal.
9. Mandatory cut off non-fire power functional test. This test should also be prepared in advance to avoid confusion and other accidents.
(D) Annual tests and inspections
Every year, all detectors installed shall be inspected and tested once again. Functional tests of other alarms, alarms, and linkage devices shall also be tested and checked according to the operating conditions of the system.
Third, the general failure and inspection
(a) Main power failure. Check whether the input power is in good condition, whether the fuse is blown or if it is in poor contact.
(b) Backup power failure. Check the charging device, battery for damage, and disconnect the cable.
(c) The detector circuit is faulty. Check whether the wiring to the fire detector is in good condition, whether the fire detector has been removed, and whether the terminal monitor is damaged.
(d) Misreporting of fire. It is necessary to investigate whether the presence of steam, oil and gas, dust, etc., which affect the normal operation of the fire detectors, exists on the scene of the false alarm fire detectors, and if so, how to eliminate them. For fire detectors with frequent false alarms and no other disturbances affecting normal work, they should be replaced promptly.
(5) Failures that cannot be eliminated for a time shall be immediately notified to the manufacturer, construction or professional maintenance unit for repair as soon as possible and resume normal work.
Tags: electrical fire electrical fire monitoring system electrical fire alarm electrical fire alarm electrical fire monitoring system
(a) appearance inspection
1. Check whether all devices (such as the detector base, terminal box, manual button, and alarm controller, etc.) are fully installed and wired and ready for wiring.
2. Whether the system ground conforms to the requirements of the specification: when the automatic fire alarm system adopts a special grounding device, its resistance value shall not be greater than 4 ohms, and when it is used as a common grounding, it shall not be greater than 1 ohm; when fire-fighting electronic equipment uses AC power, its metal shell and metal bracket The ground should be connected to the protective grounding conductor (PE wire).
3. Check the shape of the detector for damage. If there is damage, it should be recycled by the manufacturer or professional maintenance company. This is because some ionic detectors contain radioactive substances.
4. Check whether the shape and structure of various knobs, switches, plug-ins, etc. of the alarm controller are in good condition.
(II) Function and performance check of alarm controller
1. Through the manual inspection device on the fire alarm controller,
Check whether the alarm controller's functions are normal, including whether the fire alarm, various types of fault monitoring functions, and silence functions are normal.
2. Cut off the AC power supply and observe that the standby power supply is automatically put into operation and all functions are normal.
3. Observe whether the indication value of each voltmeter and current meter is normal.
4. All indicators, switches, and buttons should be free of damage and poor contact.
5. When the function and performance of the alarm controller are checked through a manual inspection device, the automatic fire extinguishing, output control contacts, etc. shall not operate, and the clock shall not stop timing.
(III) System Function and Performance Check
1. When carrying out the actual simulation test of the detector, it is observed whether the sound and light display alarm of the alarm controller is normal, and whether the correspondence between the detection area number and the construction site is accurate.
2. When unscrewing any fire detector, there should be a fault display on the alarm controller.
3. If the automatic alarm system is connected with the automatic fire extinguishing device, the electrical connection between the automatic fire extinguishing device and the alarm controller shall be cut off before performing the system function and performance check. However, the status of the fire extinguishing control contact output from the alarm controller shall be checked, such as checking the output voltage. Whether the value or current value meets the requirements, etc.
Second, regular inspection
After the automatic fire alarm system is put into operation, regular inspections and tests shall be conducted to ensure the normality and reliability of the system.
(a) Daily inspection
The daily use unit should check whether the functions of the alarm controller and the zone alarm controller (such as the fire alarm function, fault function, reset, silence, etc.) are normal and whether the indicator light is damaged. The inspection method is as follows: Self-inspection and inspection functions can be checked by pulling the self-test and inspection switch to check whether the function is normal; if there is no self-test or inspection function, the method of adding smoke and heating to the detector can be used. The detector alarms to check if the function of the alarm controller or zone alarm controller is normal. If it is found to be abnormal, it should be recorded in the daily registration form and processed in time.
(b) Weekly inspection
Perform main and standby power automatic switching tests.
(III) Quarterly tests and inspections
1. According to the requirements of the instruction manual, the use of special smoke, heating tester (without special tools can be used electric hair dryer and other appliances) staged batch test detector action is normal, the indicator shows whether clear. Found that the fault should be replaced promptly.
2. The sound and light display of the test fire alarm device is normal. In the actual operation process, all tests or partial tests can be performed at once, but care should be taken to make arrangements before the test so as to avoid unnecessary panic and confusion.
3. Test the fire alarm system, water flow indicator, pressure switch and other alarm functions on the automatic sprinkler system pipe network, and the signal display is normal.
4. One or two charge and discharge tests are performed on the standby power supply, and the main and backup power supplies are switched automatically once or twice. The test method is: cut off the main power supply, see if switching to standby power supply, whether the standby power indicator light is on, and then restore the main power supply after 4 hours to see if it is automatically converted, and then check whether the standby power supply is normally charged.
5. The system with linkage control function shall check the display function of the fire control system of the fire control equipment automatically or manually. 1 Control equipment for smoke prevention equipment, electric fire dampers, electric fire doors, fire shutters, etc.; 2 Control equipment for indoor fire hydrants, automatic sprinkler systems, etc.; Control of fixed fire extinguishing systems such as halogenated alkanes, carbon dioxide, dry powder, foam, etc. Equipment; 4 fire accident broadcast, fire accident lighting and light evacuation signs.
6. Forced fire elevators stopped at the first floor.
7. Fire-fighting communications equipment should be conducted in the fire control room for conversational phone calls.
8. Check whether all transfer switches, such as power switch, fire switch, smoke control, fire door, fire shutter switch, alarm switch, emergency lighting switch, etc. are normal.
9. Mandatory cut off non-fire power functional test. This test should also be prepared in advance to avoid confusion and other accidents.
(D) Annual tests and inspections
Every year, all detectors installed shall be inspected and tested once again. Functional tests of other alarms, alarms, and linkage devices shall also be tested and checked according to the operating conditions of the system.
Third, the general failure and inspection
(a) Main power failure. Check whether the input power is in good condition, whether the fuse is blown or if it is in poor contact.
(b) Backup power failure. Check the charging device, battery for damage, and disconnect the cable.
(c) The detector circuit is faulty. Check whether the wiring to the fire detector is in good condition, whether the fire detector has been removed, and whether the terminal monitor is damaged.
(d) Misreporting of fire. It is necessary to investigate whether the presence of steam, oil and gas, dust, etc., which affect the normal operation of the fire detectors, exists on the scene of the false alarm fire detectors, and if so, how to eliminate them. For fire detectors with frequent false alarms and no other disturbances affecting normal work, they should be replaced promptly.
(5) Failures that cannot be eliminated for a time shall be immediately notified to the manufacturer, construction or professional maintenance unit for repair as soon as possible and resume normal work.
Tags: electrical fire electrical fire monitoring system electrical fire alarm electrical fire alarm electrical fire monitoring system
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