Shenzhen Xin Xin fire alarm system installation and commissioning guide
A. Preparations before commissioning
1. Data Preparation: The information management personnel should be informed in detail about the configuration of the engineering system (including the system diagram, plan, instruction manual, owner's or contractor's requirements for the project, points, etc.).
2. Check whether the system installation meets the design requirements according to the system design drawings.
3, the application of the table and tools used in the debugging of spare parts, such as multimeter, wiring tools and encoders, screwdrivers, needle nose pliers, diagonal pliers, terminal resistance and so on.
4. Conduct self-inspection on the system and understand the construction of the project:
1 Check whether the system installation meets the design requirements according to the system design drawings. If there are any discrepancies in the system design drawings, you should inform the other party to handle them accordingly.
2 Understand whether the on-site installation equipment control box can be connected with our alarm linkage system as required. If it does not meet the requirements, it should promptly inform the other party to make corresponding changes. Understand whether the fire hydrant button light adopts light emitting diode or white light to understand whether there is equipment with large current working at the scene, such as positive pressure air supply valve, electric fire damper, separation tripping, etc., calculate the required current for lighting, such as the host power supply If not, it is necessary to inform the engineering side of the need for additional power.
3 The fire alarm host, radio communication cabinets, CRT and other equipment are individually checked for power supply, and the system can be debugged after normal operation. If the equipment is found to be abnormal during the stand-alone inspection, the causes should be analyzed and resolved in time.
(4) Whether the insulation resistance and system grounding of the test system's line-to-ground meet the requirements of the “Fire Automatic Alarm System Construction and Acceptance Specificationsâ€, the ground insulation resistance is not less than 20 megohms, and the ground-to-ground resistance cannot be greater than 4 ohms when using the working ground. When using joint grounding, the ground resistance to ground cannot be greater than 1 ohm.
5 Check the circuit of the system and deal with wrong lines, open circuits, short circuits, and grounding.
6 Connect the AC power supply. The measurement voltage range should not exceed 220V+10%-15%. Connect the backup battery and make the final preparation for the commissioning.
B, system debugging
1, according to the system design drawings (plan or system diagram) on the installation of detectors, manual alarm buttons and various modules (input and output modules) are encoded, if the drawings do not have the number of detectors and various modules, commissioning personnel should Cooperate with the construction party to accurately mark the actual address code of the detector and various modules on the drawings.
2. According to the code line of the coded address, the corresponding circuit of the controller, the number of the detectors and various modules, the address code table is sorted out and displayed according to the address code table and the control requirements of the system fire fighting equipment (fire code) Information, system information, linkage programming. The linkage plan is provided by the firefighting installation company. If the linkage relationship scheme does not meet the fire code, the constructor must sign the confirmation (for example, request smoke alarm linkage pump, etc.).
General requirements for linkage logic editing:
(1) Fire hydrant system: Manual alarm button action of fire hydrant → Activate the output module of the alarm bell or the audible and visual alarm on this floor or upper and lower layer → Turn on the alarm bell or the sound and light alarm power supply. Fire hydrant manual alarm button action → start the fire pump.
(2) Automatic sprinkler system: water flow indicator action signal → start the output module of this layer to control the alarm bell or sound and light alarm → turn on the alarm bell or sound and light alarm power supply. Pressure switch action signal → start spray pump. Or flow indicator action signal → start the spray pump. Or combine the flow indicator action signal and pressure switch action signal → start the spray pump. (The specific linkage requirements are based on local conditions)
(3) Positive Pressure Air Supply System: The linkage relationship of the mechanical positive pressure air supply system is as follows: detector alarm signal or manual alarm button alarm signal → open positive pressure air supply port → positive pressure air supply port open signal → start positive pressure air blower. The opening amount of the air outlet for positive pressure can be set according to the following requirements: 1) The opening of the air outlet for positive pressure in the smoke prevention stair should be opened for the entire stairwell, so that a uniform positive pressure is formed in the entire stairwell; 2) Positive in the front room The opening of the pressure air outlet shall be opened in accordance with the evacuation order of the personnel, that is, the positive pressure air outlets of the upper and lower layers of the alarm layer and the alarm layer shall be opened.
(4) The linkage logic of the smoke exhaust system: the detector alarm signal in the exhaust area or the manual alarm button alarm signal in the exhaust area → the smoke exhaust port that starts the smoke area (open) → the smoke exhaust port is open Signal → Activate the exhaust fan in the corresponding exhaust section (or start the exhaust fan at high speed). The closing signal of the exhaust fire damper (280°C) at the entrance of the exhaust fan → Stop the exhaust fan in the relevant part.
(5) The linkage relationship of the fire shutter doors is as follows: 1) The fire shutter doors, which are used only for fire protection, can be landed in two steps instead of two. Detector alarm signal or manual alarm button alarm signal → Start the fire shutter door around the fire zone and descend it to the bottom. 2) The fireproof rolling shutter door used on the evacuation passage shall be lowered in two steps. The linkage relationship is as follows: the smoke detector alarm signal installed on both sides of the fireproof rolling shutter door → the fireproof rolling shutter door is lowered step by step, and the fireproof rolling shutter door is lowered to the floor (floor) Stop after 1.8M, when the temperature detector mounted on both sides of the fireproof rolling door sends out an alarm signal → start the fireproof rolling door and descend again to fall to the end.
(6) Fire alarm device and fire accident linkage: The fire alarm device mainly refers to an alarm bell or sound and light alarm in a high-rise building. It has an audible and visual alarm that is automatically turned on, and the opening sequence and the opening of the fire accident broadcast are enabled. The same order. In the automatic alarm system, the linkage relationship between the open alarm bell or the sound and light alarm and the fire accident broadcast is as follows: the fire detector alarm signal or the manual alarm button alarm signal → the start control alarm bell or sound and light alarm device, the output of the fire accident broadcast Module → Turn on the alarm or audible and visual alarm power, and connect the fire accident radio line. The opening sequence of fire alarms and fire accidents in high-rise buildings is as follows: 1) When a fire occurs on floors 2 and 2 or above, the fire floor and its adjacent upper and lower floors should be connected first; 2) Fire on the ground floor At the time, it is advisable to connect this floor, the second floor and the underground floor first; 3) When there is a fire in the local lower room, it is advisable to connect the underground floors and the first floor first; single-storey buildings with multiple fire zones should be connected to the fire first. The fire zone and its adjacent fire zone;
(7) The linkage relationship of the fire elevator is as follows: Manual alarm button "and" detector alarm signal → start the fire elevator forced landing output module action → The fire elevator is forced down to the first floor and returns a signal to the fire control room. The best way for a fire lift to land on a forced landing is to manually land in a fire control room.
(8) Non-fire power switch: The logic of non-fire power switch linkage is as follows: manual alarm button "and" detector alarm → start non-fire power switch output module action → this module starts circuit breaker (air switch) trip mechanism The interrupter (air switch) trips to cut off non-fire power. The best way to cut off the non-fire power supply should be manually removed in the fire control room.
3, using a multimeter to install the detector and various modules (hand report, monitoring, control module) of the signal bus to check, initially determined that the line is not short-circuited, grounded before the next step. For the module power cable, it must be measured with a multimeter without short circuit and grounding, and at the same time ensure that the field terminals are fully connected and no exposed wire ends can be powered. For multi-line linkage control cabinets, because there are many lines connected with the field device control cabinet, it should be checked according to the requirements of the line. Terminals (terminal loads, resistances, diodes, etc.) that should be added at the site should be connected, and they should be properly connected. Each line in the control cabinet can be connected to the control cabinet only after being measured by a multimeter. Strictly check that the terminal is not connected to a strong wire. It is forbidden to connect the control line to the host of the control cabinet first, and then connect the line of the field device.
4. Accurately connect the signal lines that make up the address code to the controller and clearly mark the lines. Exclude each line fault, detector failure, and module failure.
5. When troubleshooting, the single point test function on the host computer can be used to detect the communication status of the detector or module and the host computer, and whether the signal loop has interference signals.
6. One by one, the smoke detector shall be tested for smoke alarms. For alarms and false alarms, it shall be promptly replaced and re-tested. At the same time, verify that the corresponding display relationship between the detectors is correct. If errors occur, adjust them through on-site programming.
7. Perform simulation tests on the control module and control program according to the linkage control requirements until the system is all normal.
7.1. Manually start each controlled fire-fighting linkage equipment, such as: fire radio, fire alarm, positive pressure tuyere, positive pressure fan, exhaust valve, exhaust fan, fire pump, spray pump, and fire elevator. Fire power cutoff, accident lighting, etc., and check the feedback signal of each controlled device is correct, if not correct it must be corrected. If the device fails to start, the possible causes are: incorrect programming or incorrect coding correspondence; 24V power is not connected; the control box of the device is not in automatic state; the control box of the device is not powered.
7.2, the controller is set to automatic state, the detector smoke alarm, check the linkage of the controlled device to meet the linkage control requirements. Matters needing attention: a. Establish a good relationship with customers, efficient and timely completion of their own work. b. Proper, clear, and principled handling of the intervention of non-company-provided products in commissioning projects. c. Embarrassment, politeness and patience guide the customer to solve the technical problems in debugging and complete the commissioning task in a timely manner.
C. After commissioning work:
1. After the system simulation alarm and simulation linkage test are completed, the system shall be powered on and ready for acceptance after running for 120 hours without any fault. The commissioning engineer of the system completes the commissioning work. Before delivering the user for operation and use, the relevant information delivery users and company archives must be organized for system maintenance and use in the future.
The data that is usually required to be collated and archived should include:
a. Fire-fighting system as-built drawings: System diagrams, floor plans with detectors and various module codes.
b. System configuration: the number of loops in the system, the number of encoded addresses in each loop, the distribution of the floor display panels, and the display range.
c. The system displays the correspondence: the correspondence between each coded address and the actual address, and the device type of each coded address.
d. System linkage logic: The distribution of the fire fighting equipment in the system and the logic of the operation.
2. After the commissioning of the project, the monitoring work shall be performed continuously during the operation. 3, make user maintenance personnel, on-duty personnel training.
A. Preparations before commissioning
1. Data Preparation: The information management personnel should be informed in detail about the configuration of the engineering system (including the system diagram, plan, instruction manual, owner's or contractor's requirements for the project, points, etc.).
2. Check whether the system installation meets the design requirements according to the system design drawings.
3, the application of the table and tools used in the debugging of spare parts, such as multimeter, wiring tools and encoders, screwdrivers, needle nose pliers, diagonal pliers, terminal resistance and so on.
4. Conduct self-inspection on the system and understand the construction of the project:
1 Check whether the system installation meets the design requirements according to the system design drawings. If there are any discrepancies in the system design drawings, you should inform the other party to handle them accordingly.
2 Understand whether the on-site installation equipment control box can be connected with our alarm linkage system as required. If it does not meet the requirements, it should promptly inform the other party to make corresponding changes. Understand whether the fire hydrant button light adopts light emitting diode or white light to understand whether there is equipment with large current working at the scene, such as positive pressure air supply valve, electric fire damper, separation tripping, etc., calculate the required current for lighting, such as the host power supply If not, it is necessary to inform the engineering side of the need for additional power.
3 The fire alarm host, radio communication cabinets, CRT and other equipment are individually checked for power supply, and the system can be debugged after normal operation. If the equipment is found to be abnormal during the stand-alone inspection, the causes should be analyzed and resolved in time.
(4) Whether the insulation resistance and system grounding of the test system's line-to-ground meet the requirements of the “Fire Automatic Alarm System Construction and Acceptance Specificationsâ€, the ground insulation resistance is not less than 20 megohms, and the ground-to-ground resistance cannot be greater than 4 ohms when using the working ground. When using joint grounding, the ground resistance to ground cannot be greater than 1 ohm.
5 Check the circuit of the system and deal with wrong lines, open circuits, short circuits, and grounding.
6 Connect the AC power supply. The measurement voltage range should not exceed 220V+10%-15%. Connect the backup battery and make the final preparation for the commissioning.
B, system debugging
1, according to the system design drawings (plan or system diagram) on the installation of detectors, manual alarm buttons and various modules (input and output modules) are encoded, if the drawings do not have the number of detectors and various modules, commissioning personnel should Cooperate with the construction party to accurately mark the actual address code of the detector and various modules on the drawings.
2. According to the code line of the coded address, the corresponding circuit of the controller, the number of the detectors and various modules, the address code table is sorted out and displayed according to the address code table and the control requirements of the system fire fighting equipment (fire code) Information, system information, linkage programming. The linkage plan is provided by the firefighting installation company. If the linkage relationship scheme does not meet the fire code, the constructor must sign the confirmation (for example, request smoke alarm linkage pump, etc.).
General requirements for linkage logic editing:
(1) Fire hydrant system: Manual alarm button action of fire hydrant → Activate the output module of the alarm bell or the audible and visual alarm on this floor or upper and lower layer → Turn on the alarm bell or the sound and light alarm power supply. Fire hydrant manual alarm button action → start the fire pump.
(2) Automatic sprinkler system: water flow indicator action signal → start the output module of this layer to control the alarm bell or sound and light alarm → turn on the alarm bell or sound and light alarm power supply. Pressure switch action signal → start spray pump. Or flow indicator action signal → start the spray pump. Or combine the flow indicator action signal and pressure switch action signal → start the spray pump. (The specific linkage requirements are based on local conditions)
(3) Positive Pressure Air Supply System: The linkage relationship of the mechanical positive pressure air supply system is as follows: detector alarm signal or manual alarm button alarm signal → open positive pressure air supply port → positive pressure air supply port open signal → start positive pressure air blower. The opening amount of the air outlet for positive pressure can be set according to the following requirements: 1) The opening of the air outlet for positive pressure in the smoke prevention stair should be opened for the entire stairwell, so that a uniform positive pressure is formed in the entire stairwell; 2) Positive in the front room The opening of the pressure air outlet shall be opened in accordance with the evacuation order of the personnel, that is, the positive pressure air outlets of the upper and lower layers of the alarm layer and the alarm layer shall be opened.
(4) The linkage logic of the smoke exhaust system: the detector alarm signal in the exhaust area or the manual alarm button alarm signal in the exhaust area → the smoke exhaust port that starts the smoke area (open) → the smoke exhaust port is open Signal → Activate the exhaust fan in the corresponding exhaust section (or start the exhaust fan at high speed). The closing signal of the exhaust fire damper (280°C) at the entrance of the exhaust fan → Stop the exhaust fan in the relevant part.
(5) The linkage relationship of the fire shutter doors is as follows: 1) The fire shutter doors, which are used only for fire protection, can be landed in two steps instead of two. Detector alarm signal or manual alarm button alarm signal → Start the fire shutter door around the fire zone and descend it to the bottom. 2) The fireproof rolling shutter door used on the evacuation passage shall be lowered in two steps. The linkage relationship is as follows: the smoke detector alarm signal installed on both sides of the fireproof rolling shutter door → the fireproof rolling shutter door is lowered step by step, and the fireproof rolling shutter door is lowered to the floor (floor) Stop after 1.8M, when the temperature detector mounted on both sides of the fireproof rolling door sends out an alarm signal → start the fireproof rolling door and descend again to fall to the end.
(6) Fire alarm device and fire accident linkage: The fire alarm device mainly refers to an alarm bell or sound and light alarm in a high-rise building. It has an audible and visual alarm that is automatically turned on, and the opening sequence and the opening of the fire accident broadcast are enabled. The same order. In the automatic alarm system, the linkage relationship between the open alarm bell or the sound and light alarm and the fire accident broadcast is as follows: the fire detector alarm signal or the manual alarm button alarm signal → the start control alarm bell or sound and light alarm device, the output of the fire accident broadcast Module → Turn on the alarm or audible and visual alarm power, and connect the fire accident radio line. The opening sequence of fire alarms and fire accidents in high-rise buildings is as follows: 1) When a fire occurs on floors 2 and 2 or above, the fire floor and its adjacent upper and lower floors should be connected first; 2) Fire on the ground floor At the time, it is advisable to connect this floor, the second floor and the underground floor first; 3) When there is a fire in the local lower room, it is advisable to connect the underground floors and the first floor first; single-storey buildings with multiple fire zones should be connected to the fire first. The fire zone and its adjacent fire zone;
(7) The linkage relationship of the fire elevator is as follows: Manual alarm button "and" detector alarm signal → start the fire elevator forced landing output module action → The fire elevator is forced down to the first floor and returns a signal to the fire control room. The best way for a fire lift to land on a forced landing is to manually land in a fire control room.
(8) Non-fire power switch: The logic of non-fire power switch linkage is as follows: manual alarm button "and" detector alarm → start non-fire power switch output module action → this module starts circuit breaker (air switch) trip mechanism The interrupter (air switch) trips to cut off non-fire power. The best way to cut off the non-fire power supply should be manually removed in the fire control room.
3, using a multimeter to install the detector and various modules (hand report, monitoring, control module) of the signal bus to check, initially determined that the line is not short-circuited, grounded before the next step. For the module power cable, it must be measured with a multimeter without short circuit and grounding, and at the same time ensure that the field terminals are fully connected and no exposed wire ends can be powered. For multi-line linkage control cabinets, because there are many lines connected with the field device control cabinet, it should be checked according to the requirements of the line. Terminals (terminal loads, resistances, diodes, etc.) that should be added at the site should be connected, and they should be properly connected. Each line in the control cabinet can be connected to the control cabinet only after being measured by a multimeter. Strictly check that the terminal is not connected to a strong wire. It is forbidden to connect the control line to the host of the control cabinet first, and then connect the line of the field device.
4. Accurately connect the signal lines that make up the address code to the controller and clearly mark the lines. Exclude each line fault, detector failure, and module failure.
5. When troubleshooting, the single point test function on the host computer can be used to detect the communication status of the detector or module and the host computer, and whether the signal loop has interference signals.
6. One by one, the smoke detector shall be tested for smoke alarms. For alarms and false alarms, it shall be promptly replaced and re-tested. At the same time, verify that the corresponding display relationship between the detectors is correct. If errors occur, adjust them through on-site programming.
7. Perform simulation tests on the control module and control program according to the linkage control requirements until the system is all normal.
7.1. Manually start each controlled fire-fighting linkage equipment, such as: fire radio, fire alarm, positive pressure tuyere, positive pressure fan, exhaust valve, exhaust fan, fire pump, spray pump, and fire elevator. Fire power cutoff, accident lighting, etc., and check the feedback signal of each controlled device is correct, if not correct it must be corrected. If the device fails to start, the possible causes are: incorrect programming or incorrect coding correspondence; 24V power is not connected; the control box of the device is not in automatic state; the control box of the device is not powered.
7.2, the controller is set to automatic state, the detector smoke alarm, check the linkage of the controlled device to meet the linkage control requirements. Matters needing attention: a. Establish a good relationship with customers, efficient and timely completion of their own work. b. Proper, clear, and principled handling of the intervention of non-company-provided products in commissioning projects. c. Embarrassment, politeness and patience guide the customer to solve the technical problems in debugging and complete the commissioning task in a timely manner.
C. After commissioning work:
1. After the system simulation alarm and simulation linkage test are completed, the system shall be powered on and ready for acceptance after running for 120 hours without any fault. The commissioning engineer of the system completes the commissioning work. Before delivering the user for operation and use, the relevant information delivery users and company archives must be organized for system maintenance and use in the future.
The data that is usually required to be collated and archived should include:
a. Fire-fighting system as-built drawings: System diagrams, floor plans with detectors and various module codes.
b. System configuration: the number of loops in the system, the number of encoded addresses in each loop, the distribution of the floor display panels, and the display range.
c. The system displays the correspondence: the correspondence between each coded address and the actual address, and the device type of each coded address.
d. System linkage logic: The distribution of the fire fighting equipment in the system and the logic of the operation.
2. After the commissioning of the project, the monitoring work shall be performed continuously during the operation. 3, make user maintenance personnel, on-duty personnel training.
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