With the rapid development of social and economic construction, the height and scale of buildings are developing in a higher, larger and deeper direction. While the development of scientific and technological civilization brings us a more convenient life, the safety management issues of building fire protection are more worthy of attention. Strictly setting up fire protection facilities in accordance with the provisions of fire protection technical specifications and conducting regular maintenance is an important measure to ensure building fire safety.
fire automatic alarm system maintenance procedures
fire detector , module class, manual alarm button, fire hydrant button and other equipment
■ Maintenance method:
1. If the equipment and the base fall off and have poor contact, the contact area between the base and the equipment spring should be re-tightened or increased;
2. If the alarm bus has poor contact with the base of the equipment, the alarm bus should be re-crimped. The multi-stranded wires should be tinted or crimped;
3. If the alarm bus open circuit, ground or short circuit fails, the line should be replaced or the fault point should be repaired;
4. If the fire detector falsely reports a fire alarm, first check its installation and use environment, clear the surrounding sources such as humidity, high temperature, smoke, etc., or move the fire detector appropriately to keep it away from the interference source, or clean the fire detector by an organization with relevant technical capabilities;
5. If the fire detector, module, manual alarm button, and fire hydrant button are damaged, they should be replaced.
main power supply
■ Maintenance method:
1. When the main power supply is continuously powered out for 8 hours, the main power should be turned off and then turned on after the main power is restored to normal;
2. Check whether the main power supply air switch is disconnected, and then re-closed after confirming that the power supply circuit is normal. If the switch is not successfully closed, replace the switch;
3. The main power line has poor contact, the power line can be re-crimped;
4. The main power supply fuse or fuse is blown. After confirming that the line is normal, replace the fuse or fuse that meets the requirements;
5. The main power supply equipment should be replaced if it is damaged.
backup power supply
■ maintenance method:
1. If the wiring of the backup battery is poor, it is advisable to use soldering iron or special tools to crimp the electrical connection wire;
2. The backup power supply fuse or fuse is blown. After confirming that the line is normal, replace the fuse or fuse that meets the requirements;
3. When the backup power supply voltage is insufficient, the power charging device should be checked, and the backup power supply should be replaced for the fault;
4. The undervoltage battery is re-measured after charging for 24 hours. If it is still insufficient, replace the battery.
communication device
■ Maintenance method:
1. The power supply of the area alarm controller or fire display disk equipment is not normal, and the power supply should be repaired and restored;
2. The communication interface board between the area alarm controller and the centralized alarm controller is faulty, and the communication interface board should be repaired or replaced; if the communication failure occurs due to other equipment, the corresponding equipment should be repaired or replaced;
3. If the communication line between the area alarm controller and the centralized alarm controller is open, short-circuited or grounded, the fault point should be repaired or the line should be replaced.
fire automatic alarm system maintenance procedures
Fire alarm controller type equipment
■ Inspection requirements:
1. Check the controller indicator lights, display screens, and audio devices every month, and should be intact and effective;
2. The external lines of the controller should be free of defects, the terminal should not be loose, the wire mark terminal identification should be clear, and the external interface contact should be good;
3. The functions of the controller should be normal every quarter should be checked;
4. The output voltage of the controller should be measured using the multimeter every quarter should meet the requirements of the product instruction manual;
5. The input voltage of the fire detector or module at the end of the control bus circuit should meet the design requirements.
■ Maintenance method:
1. Cut off the power every year and use special cleaning tools to remove dust in the circuit board, terminal block and cabinet (box);
2. The controller equipment cabinet (box) in humid places should be placed in the body of the body of the control unit (box);
3. When the power supply voltage value of the end fire detector or module is less than the specified value of the instruction manual, the circuit board should be replaced or the circuit should be adjusted;
4. Check the external wiring terminals of the fire alarm controller every year, and when it is loose, it should be tightened;
5. Back up the software information in the fire alarm controller every quarter;
6. The battery is maintained in accordance with the product manual.
dot-type fire fire detector
■ Check the working conditions of the point-type fire fire detector every quarter.
2. The point-type fire fire detector should have 10% but no less than 50 spare products.
Maintenance method:
3. Re-tighten the loose terminals, replace the wiring components such as screws, terminal gaskets with rust marks, remove the rusted wire ends, and re-connect them after tinning;
4. After the point-shaped fire detector is put into operation for two years, All should be cleaned at least once every three years, and fire detectors with poor use environment should be cleaned every year;
5. The cleaning of point-shaped fire detectors should use professional industrial equipment to clean the sensing components and circuit boards. After cleaning, the response threshold of the detector should be calibrated, and the response threshold should be within the response threshold range specified by the manufacturer or factory inspection;
6. The point-shaped fire detector should undergo necessary functional tests after cleaning, and those who pass the test can continue to use it.
point temperature sensing fire detector
■ Check the working conditions of the point temperature sensing fire detector every quarter whether the working status of the point temperature sensing fire detector is normal;
2. The point temperature sensing fire detector should have 10% of the spare products.
■ Maintenance method:
1. Re-tighten the loose terminals, replace the wiring components such as screws, terminal gaskets with rust marks, remove the rusted wire ends, and reconnect them after tinning;
2. After the point-type temperature-sensitive fire detector is put into operation for two years, it should be cleaned at least once every three years. Fire detectors with poor usage environment should be cleaned every year;
3. The cleaning of point-type temperature-sensing fire detectors should be carried out using professional industrial equipment to clean the sensing components and circuit boards. After cleaning, the response threshold of the detector should be calibrated. The response threshold should be within the response threshold range specified by the manufacturer or factory inspection;
4. The necessary functional test should be performed after cleaning of the point-type temperature-sensing fire detectors, and those who pass the test can continue to use it.
linear beam sensing fire detector
■ inspection requirements:
1. Check whether the working status of linear beam sensing fire detector is normal every quarter;
2. Linear beam sensing fire detector should have 10% spare parts.
■ Maintenance method:
1. Re-tighten the loose terminals of the equipment, replace the screws, terminal gaskets and other wiring components with rust marks, remove the rusted wire ends, and reconnect after tin engraving;
2. Use special cleaning tools or soft cloths and appropriate detergents to clean the optical window every quarter. After cleaning, the detector response threshold is calibrated to the factory-set threshold of the detector;
3. linear beam smoke detector should undergo necessary functional tests after cleaning, and can continue to use after passing the qualification.
Aspirated fire detector
■ Inspection requirements:
1. Check whether the working status of the aspirated fire detector is normal every quarter;
2. Check the event records of the aspirated fire detector every quarter to understand the situation of the protection area;
3. Check the status and usage of the aspirated fire detector filter every quarter to determine whether the filter needs to be replaced;
4. Check the airflow value displayed on the aspirated fire detector every quarter. Judge the blockage status of the sampling pipeline and deal with problems in time when they are found;
5. Check whether there are blockages, ruptures, fixation and looseness in the sampling pipeline every six months, and deal with problems in time when they are found.
■ Maintenance method:
1. Re-tighten the loose terminals of the equipment, replace the wiring components such as screws, terminal gaskets with rust marks, remove the rusted wire ends, and reconnect them after tin engraving;
2. The aspirated pyrotechnic detector sampled through the sampling tube should be purged at least once a year, and the filter should be replaced, and the alarm function test will be carried out;
3. Maintenance according to the requirements of the equipment product manual.
point flame detector
■ Check requirements: Check whether the working status of the point flame detector is normal every quarter.
■ Maintenance method:
1. Re-tighten the equipment to connect loose terminals, replace screws, terminal gaskets and other wiring parts with rust marks, remove the rusted wire ends, and reconnect after tin engraving;
2. Maintenance according to the requirements of the product instructions;
3. Use special cleaning tools or soft cloth and appropriate detergent to clean the optical window.
manual component button device
■ Check requirements:
1. Check whether the working status of the manual component button is normal every quarter;
2. Check the functions of the manual component button alarm contacts and mechanical alarm components every quarter.
■ Maintenance method:
1. Re-tighten the loose terminals of the equipment, replace the screws, terminal gaskets and other wiring parts with rust marks, remove the rusted wire ends, and reconnect after tinning;
2. Eliminate component failures to ensure that the equipment operates flexible and function normally.
module-class equipment
■ Check requirements: Check whether the working status of the module-class equipment is normal every quarter.
■ Maintenance method: Re-tighten the equipment to connect loose terminals, replace the wiring components such as screws, terminal gaskets, etc. with rust marks, remove the rusted wire ends, and reconnect after tinning.
acoustic and optical alarm equipment
■ Inspection requirements: Check whether the working status of the acous and optical alarm equipment is normal every quarter.
■ Maintenance method:
1. Re-tighten the loose terminals of the equipment connection, replace the screws, terminal gaskets and other wiring parts with rust marks, remove the rusted wire ends, and re-connect after tin engraving;
2. Use special cleaning tools or soft cloth and appropriate detergent to clean the surface stains of the sound and light alarm equipment.
battery
■ inspection requirements:
1. Check the backup battery of the fire automatic alarm system every quarter, and there should be no deformation and swelling;
2. Carry out the main and backup power switching test of the fire power supply every quarter, record the continuous working time of the backup power under standard load, and check whether the battery status of the backup battery is normal;
3. Check the battery pole and wiring head every quarter, and the connection should be reliable and the appearance should have a metallic luster.
■ Maintenance method:
1. Clear the yellow and white paste that may appear around the battery pole;
2. Replace the backup battery with abnormal battery status;
3. Apply Vaseline and other protective agents to prevent oxidation on the battery terminal.
Fire control room graphics display device
■ Inspection requirements: Check the appearance and functions of the graphics display device every month.
■ Maintenance method:
1. Use special cleaning tools or soft cloth and appropriate detergent to clean the surface stains of the graphics display device;
2. Use compressed air, cleaning tools and other cleaning devices to clean the dust in the box;
3. Back up the software of the graphics display device every six months.
fire automatic alarm system scrapping conditions
■ fire automatic alarm system service life shall not exceed twelve years, and it shall be scrapped when it reaches its service life. The scrapping conditions and treatment methods shall comply with the provisions of GB 29837.
■ battery life shall not exceed four years, and it shall be scrapped when it reaches its service life. If the service life has not been reached, but the surface is severely deformed, rusted, liquid leakage, etc., it should also be scrapped.
