GB/T 47438.1-2026Special requirements for fire alarm and evacuation in hazardous chemicals workplaces - Part 1: Automatic fire alarm systems (English PDF)

4.2.1 Fire alarm function

4.2.1.1 Rapid Response When the monitoring area of the fire alarm trigger device meets the alarm conditions, the fire alarm controller should receive the fire alarm trigger within 3 seconds. Fire alarm signals for the device.

4.2.3 Online component replacement function

4.2.3.1 The fire alarm controller shall have fire alarm triggering devices such as online replacement of fire detectors and manual fire alarm buttons, and fire alarm sound. When replacing the functions of the light alarm and/or the module, the normal operation of the non-replaced parts should not be affected.

4.2.3.2 Electrical fire monitoring equipment should have the function of online replacement of electrical fire monitoring detectors. When replacing them, non-replaceable components should not be affected. Normal operation.

4.2.4 Communication Function

4.2.4.1 In the event of an open circuit or short circuit at any point on the alarm bus of the fire detection and alarm system, the fire alarm controller and the fire alarm triggering device should... It can communicate normally.

4.2.4.2 The fire alarm controller and various fire alarm triggering devices shall be connected by wired communication.

4.2.4.3 Fire control room graphic display device and fire alarm controller, electrical fire monitoring equipment, combustible gas alarm controller, emergency... Between lighting controllers, between fire alarm controllers and fire-fighting linkage controllers, and between fire-fighting linkage controllers and electrical control devices, centralized... When communication reliability between a type-type controller and a area-type controller cannot be guaranteed using wires and cables, fiber optic communication is preferable. When using... When the location lacks the conditions for wired communication installation, wireless communication may be used. The communication status indication function of the automatic fire alarm system should... The following requirements must be met.

a) The graphic display device in the fire control room should be able to indicate control equipment with communication malfunctions;

b) The fire alarm controller should be able to indicate fire-fighting linkage controllers with communication abnormalities;

c) The fire alarm control panel should be able to indicate electrical control devices with communication abnormalities;

d) Centralized fire alarm controllers should be able to indicate communication failures in regional fire alarm controllers.

4.2.4.4 When an automatic fire alarm system uses wireless communication, the following requirements shall be met.

a) It should be able to communicate normally under conditions that meet the network signal quality specifications stipulated by the producer;

b) No fault in the system should affect the normal operation of the non-faulty parts.

4.2.4.5 When a combustible gas detector is connected to a combustible gas alarm system or automatic control system for monitoring, the graphic display device in the fire control room should be installed. The device should be able to communicate with combustible gas alarm systems or automatic control systems, receive and display the status information and gas concentration of combustible gas detectors. information.

4.2.4.6 The fire alarm controller and the graphic display device in the fire control room should be able to communicate with a third-party monitoring platform to integrate the automatic fire alarm system. The information is sent to the third-party regulatory platform, and the communication protocol should meet the requirements of Appendix A.

4.3.1 Redundancy Function

4.3.1.1 General Requirements Fire alarm controllers, fire linkage controllers, electrical fire monitoring equipment, fire electrical control devices, and other control equipment (hereinafter referred to as...) The "control equipment" should adopt a redundant design, and the control equipment should have at least one unit that implements the main control function, power control function, and communication function. Backup unit. The appearance, circuit board, components, and program of the main unit and the backup unit should be consistent. The main unit and the backup unit should have a non-disconnect function. The function of controlling the power supply replacement of the control equipment.

4.3.1.2 Unit Conversion The control equipment should be able to switch between the main unit and the standby unit automatically and manually. When the main unit malfunctions, it should be able to automatically switch to standby mode. When the main unit returns to normal operation, it should automatically or manually switch to the backup unit. Unit switching should not affect the normal operation of the control equipment. After the unit conversion, the control equipment should establish status information within 20 seconds.

4.3.1.3 Status Indication The control equipment should be able to indicate the operating and fault status of the main unit and the standby unit. When a fault occurs in the main unit or the standby unit... When the fault occurs, the main fault indicator light (or device) should illuminate within 60 seconds to indicate the location of the fault and emit an audible fault signal. Indicator lights (or devices) are used for status indication. When displayed, under ambient light conditions not exceeding 500 lx, the status indicator light (device) should be clearly visible at a distance of 3 meters from a 22.5° viewing angle directly in front. See. Under the condition that the ambient sound pressure level (A-weighted) is no greater than 50 dB, the peak sound pressure level (A-weighted) at 1 m directly in front of the audio device is... The value should not be less than 65 dB and should not be greater than 115 dB.

4.3.2 Operation display panel control functions The centralized fire alarm controller can be expanded to include one operation display panel. The operation display panel's display devices and button (button) settings... The method, display method, and function should be the same as those of a centralized fire alarm controller, and the displayed information should be consistent with that of the centralized fire alarm controller. To. When any operation display panel of a centralized fire alarm controller malfunctions, it should not affect the operation of the normal operation display panel. With display.

4.4 Fire telephone and fire emergency broadcast system

4.4.1 Fire telephones should preferably have fiber optic communication capabilities.

4.4.2 Outdoor loudspeakers in fire emergency broadcast systems should be horn loudspeakers.

4.5.1 Explosion-proof requirements

4.5.1.1 Installation and use in production areas, as well as in public and auxiliary production facility areas and production management areas with risks of flammable gas and dust explosions. The system equipment should be explosion-proof in accordance with the requirements of GB/T 3836.1.

4.5.1.2 For automatic fire alarm systems using wireless communication, outdoor-installed repeaters, gateways, and other network transmission equipment should meet the following requirements. The explosion-proof type required by GB/T 3836.1.

4.5.2 Enclosure Protection Rating

4.5.2.1 The enclosure protection rating (IP code) of indoor-installed control equipment shall not be lower than the IP30 requirement in GB/T 4208-2017; The enclosure protection rating (IP code) of outdoor-installed control equipment shall not be lower than the IP65 requirement in GB/T 4208-2017.

4.5.2.2 The enclosure protection rating (IP code) of indoor-installed fire emergency broadcast equipment shall not be lower than IP30 in GB/T 4208-2017. The requirements are as follows: the enclosure protection rating (IP code) of outdoor-installed loudspeakers should not be lower than the IP65 requirement in GB/T 4208-2017.

4.5.2.3 Outdoor-installed fire detectors, manual fire alarm buttons, fire audible and/or visual alarms, modules, and electrical fire monitoring and detection devices. The enclosure protection rating (IP code) of the device shall not be lower than the IP65 requirement in GB/T 4208-2017.

4.6 Climate and Environmental Tolerance Fire detectors, manual fire alarm buttons, fire audible and/or visual alarms, modules, and electrical fire monitoring detectors should be able to withstand the conditions shown in Table 1. All tests under specified climatic conditions, including high-temperature (operational) tests and low-temperature (operational) tests, should be conducted according to the manufacturer's specifications for the product. The applicable ambient temperature should be selected under test condition I or II; the following requirements should be met during and after the test.

a) During the test, equipment requiring normal monitoring status should remain in normal monitoring status;

b) Alternating damp heat (operation) test, sulfur dioxide (SO2) corrosion (durability) test, salt spray test, high temperature (operation) test, low temperature (operation) test After the (line) test and temperature change test, the fire detectors, manual fire alarm buttons, fire audible and/or visual alarms, modules, and electrical... Gas fire monitoring detectors should not exhibit any damage to the coating or corrosion, and should meet the relevant national standards for climate environmental tolerance testing. The requirements afterwards.

4.7 Tolerance to sunlight Outdoor fire detectors should be able to withstand the sunlight interference test and fluorescent ultraviolet lamp aging (operation) test specified in Table 2, during the test period. The following requirements should be met during and after the test.

a) During the test, the fire detector should not issue a fire alarm signal or a fault signal; after the test, the performance of the fire detector should meet the relevant requirements. As required by national standards;

b) After the fluorescent ultraviolet lamp aging (operation) test, the fire detector should not show any signs of damage to the coating or corrosion.

4.8 Electromagnetic compatibility performance The system equipment should be able to withstand all tests under the electromagnetic interference conditions specified in Table 3, and should meet the following requirements during and after the tests.

a) During the test, the system equipment should be kept under normal monitoring.

b) After the test, the system equipment should meet the requirements of the relevant national standards.

5.1 Test Conditions

5.1.1 Atmospheric conditions Unless otherwise stated, all tests were conducted under the following atmospheric conditions.

---Temperature. 15°C~35°C;

---Relative humidity. 25%~75%;

---Atmospheric pressure. 86kPa~106kPa.

5.1.2 Normal monitoring status of the sample If the test method requires the specimen to be under normal monitoring conditions, the specimen should be connected to the load and/or control and indicating equipment provided by the manufacturer. Connect and maintain normal operating conditions; unless otherwise specified in the relevant clauses, ensure that its operating voltage is the rated operating voltage, and conduct tests. Maintain a stable operating voltage during this period.

5.1.3 Tolerance Unless otherwise specified in the relevant clauses, the tolerance for all test data is ±5%; deviations in environmental condition parameters shall comply with GB/T 16838. Require.

5.1.4 Sample The number of test samples should meet the following requirements and be numbered before the test.

a) Control equipment such as fire alarm controllers, fire linkage controllers, electrical fire monitoring equipment, and fire electrical control devices are

2 The system includes one set of fire telephone and fire emergency broadcast system, fire detectors, manual fire alarm buttons, and fire sound and/or light alarms. The device, module, and electrical fire monitoring detector consist of 6 units;

b) The fire alarm controller needs to be equipped with at least one circuit of fully loaded fire detectors and manual alarm buttons, fire audible and/or visual alarms. Fire alarms, modules, and other fire alarm control systems should be equipped with at least one circuit of fully loaded and controlled equipment. Electrical fire monitoring equipment should be equipped with... Connect at least one circuit of fully loaded electrical fire monitoring detector.

5.1.5 Test Procedure

5.1.5.1 All types of equipment in the system shall be tested according to the test items specified in Tables 4 to 10.

5.1.5.2 When the test items and test conditions of the corresponding national standards for system equipment are consistent with the requirements specified in Tables 4 to 10, all types of equipment... The tests corresponding to Tables 4 to 10 may be omitted.

5.2 Fire Alarm Function Test

5.2.1 In accordance with the requirements of 4.2.1.1, ensure that the monitoring area of the fire alarm triggering device meets the alarm conditions, and record the reception of the fire alarm controller. Alarm time.

5.2.2 In accordance with the requirements of

4.2.1.2 and the composite alarm logic specified by the manufacturer, check the fire alarm function of the fire alarm controller; when detection... When the measured parameters include combustible gas, check whether the fire alarm controller has the function of a combustible gas alarm controller.

5.3 Test of linkage control mode In accordance with the requirements of 4.2.2, check the influence of wire and cable length on the connection between the fire alarm controller and the fire linkage controller and the controlled equipment. When the response fails to meet the control requirements, does the control method adopted meet the requirements?

5.4.1 Online replacement test of fire alarm controller components

5.4.1.1 With the fire alarm controller sample powered on, disconnect any one of the fire detectors connected to it, and follow the requirements of GB 4717. Please check the fault alarm function of the fire alarm controller sample. Check the fire alarm function of non-faulty parts according to the requirements of GB 4717. And fire alarm control function.

5.4.1.2 Replace the removed fire detectors and reset the fire alarm controller sample to bring it into normal monitoring mode. Follow the instructions... GB 4717 requires the inspection of fire alarm functions and fire alarm control functions.

5.4.1.3 Disconnect any manual fire alarm button connected to the fire alarm controller sample and check the fire alarm status according to GB 4717. The fault alarm function of the fire alarm controller sample was tested. The fire alarm function and fire alarm reporting of non-faulty parts were checked according to GB 4717. Police control function.

5.4.1.4 Replace the removed manual fire alarm button and reset the fire alarm controller sample to normal monitoring status. Check the fire alarm function and fire alarm control function in accordance with the requirements of GB 4717.

5.4.1.5 Remove any fire alarm sound and/or light alarm connected to the fire alarm controller sample and inspect it according to the requirements of GB 4717. The fault alarm function of the fire alarm controller sample was tested. The fire alarm function of non-faulty parts and the fire alarm response were checked according to GB 4717. Alarm control function.

5.5.4 Check whether the requirements are met when the automatic fire alarm system uses wireless communication.

5.5.5 When checking the combustible gas detectors connected to the combustible gas alarm system or automatic control system for monitoring, the graphic display in the fire control room should reflect the correct operation. Can the device communicate with a combustible gas alarm system or automatic control system to receive and display the status information of the combustible gas detector and the gas concentration? Degree information.

5.5.6 Check whether the fire alarm controller and the graphic display device in the fire control room can communicate with the third-party monitoring platform and whether they can transmit fire alarm signals. Does the communication protocol used by the automatic alarm system to send information to a third-party monitoring platform meet the requirements of Appendix A?

5.6.1 Test Procedure

5.6.1.1 Inspect the main unit of the fire alarm controller, fire linkage controller, electrical fire monitoring equipment, and fire electrical control device samples. The appearance, circuit board, component settings, and program version number of the backup unit.

5.6.1.2 Connect fire detectors to at least two locations or detection zones within the same alarm circuit of the fire alarm controller sample. Alternatively, a manual fire alarm button can be connected to the detection zone. For multi-circuit samples, a fire detector should also be connected to at least one other circuit as described above. The fire alarm controller sample includes a manual fire alarm button and other circuits that can be connected to equivalent loads and powered on to ensure normal operation. It is monitored and connected to the graphic display device in the fire control room to maintain normal communication.

5.6.1.3 Connect the fire alarm control panel sample to the fire alarm controller and the fire electrical control device respectively, and maintain normal communication; The anti-interlock controller sample is connected to the input module and output module to ensure it is in normal monitoring mode.

5.6.1.4 For fire alarm controller samples with linkage control function, the samples shall be connected in accordance with the requirements of

5.6.1.2 and 5.6.1.3.

5.6.1.5 Connect the electrical fire monitoring equipment sample to the electrical fire monitoring detector, ensuring it is in normal monitoring condition, and connect it to the fire control system. Connect the indoor graphic display device and maintain normal communication.

5.6.1.6 Operate the fire alarm controller, fire linkage controller, electrical fire monitoring equipment, and fire electrical control device samples to make the samples... If a unit malfunctions, check the status of the backup unit switchover, restore the main unit to normal function, check the main unit's recovery status, and record the sample's condition. Information creation time.

5.6.1.7 Operate the fire alarm controller, fire linkage controller, electrical fire monitoring equipment, and fire electrical control device samples respectively, and make the test... If the main unit and backup unit of the sample malfunction, check the status indication and fault indication of the sample, and measure the sound pressure level of the audio device.

5.6.2 Test Equipment Stopwatch, sound level meter.

5.7 Test of Operation Display Panel Control Functions For fire alarm controllers with operation display panels, verify the display devices, button (button) settings, and display information of the operation panel one by one. Check whether the method and function are the same as those of the fire alarm controller, and record the displayed information.

5.8 Operational Function Test under Display Device Fault Conditions Operate the fire alarm controller, fire linkage controller, electrical fire monitoring equipment, and fire electrical control device samples to make the samples display... If a device malfunctions, check the performance of the sample according to the requirements of 4.3.3.

5.9 Explosion-proof performance test Check whether the explosion-proof performance in the explosion-proof certificate of the sample meets the requirements.

5.10 Enclosure Protection Rating Test The test shall be conducted in accordance with the provisions of GB/T 4208-2017, and the enclosure protection rating of the specimen shall be checked in accordance with the requirements of 4.5.2.

5.11.1 Test Procedure

5.11.1.1 Place the sample in the damp heat test chamber and bring it under normal monitoring conditions.

5.11.1.2 The specimen shall be subjected to alternating damp heat treatment at a temperature of 40°C±2°C for two cycles, according to the test method specified in GB/T 16838. (Run) Test. During the test, observe and record the condition of the sample.

5.11.1.3 Remove the sample from the test chamber and place it under normal atmospheric conditions for at least 1 hour. Test according to the requirements of the corresponding national standard for the sample. Check the performance of the sample.

5.11.2 Test Equipment The testing equipment shall comply with the provisions of GB/T 16838.

5.12.1 Test Procedure

5.12.1.1 Place the sample under normal atmospheric conditions for at least 1 hour. Install the test part of the sample inside the test chamber. During the test, the sample should not be... power ups.

5.12.1.2 The SO2 concentration of the test sample was determined according to the test method specified in GB/T 16838, with a concentration of (25±5)×10^-6 (volume). Corrosion (durability) test with integral number, temperature of 25°C±2°C, relative humidity of 75%±5%, and duration of 21 days.

5.12.1.3 Remove the test part of the sample and immediately place it in a test chamber at a temperature of 25°C±2°C and a relative humidity of less than 50% to dry. 16h. Then, after recovering under normal atmospheric conditions for 1-2 hours, perform a visual inspection of the sample and record the results. Follow the sample's corresponding national standards. In accordance with national standards, the performance of the test samples is checked.

5.12.2 Test Equipment The testing equipment shall comply with the provisions of GB/T 16838.

5.15.1 Test Procedure

5.15.1.1 Place the sample in a low-temperature test chamber and keep it under normal monitoring conditions for 1 hour.

5.15.1.2 Cool to -10°C±2°C, -40°C±2°C, or the lowest temperature applicable at an average cooling rate not exceeding 1°C/min. Maintain this temperature for 16 hours.

5.15.1.3 During the test, observe and record the working status of the sample.

5.15.1.4 After the test, remove the sample from the test chamber and place it under normal atmospheric conditions for at least 1 hour to check for sample deformation, corrosion, and coating. Check for layer peeling and blistering. Inspect the performance of the sample according to the requirements of the corresponding national standard.

5.15.2 Test Equipment The testing equipment shall comply with the provisions of GB/T 16838.

5.16.1 Test Procedure

5.16.1.1 Place the sample in the test chamber and ensure that the sample is not energized.

5.16.1.2 The following tests shall be performed on the specimens according to the test methods specified in GB/T 2423.22.

a) Cool to -40°C±2°C at a cooling rate not exceeding 1°C/min for 2 hours;

b) Increase the temperature to 70°C±2°C at a heating rate not exceeding 1°C/min, and maintain the temperature for 2 hours;

b) twice in combination.

5.16.1.3 Remove the sample from the test chamber and place it under normal atmospheric conditions for at least 1 hour. Test according to the requirements of the corresponding national standard for the sample. Check the performance of the sample.

5.16.2 Test Equipment The testing equipment shall comply with the requirements of GB/T 2423.22.

5.17.1 Test Procedure

5.17.1.1 Connect the sample to the power supply to ensure it is in normal working condition, place it in a dark room for 1 hour, and then conduct the test according to the following steps.

a) By reflecting sunlight once or multiple times through a mirrored aluminum reflector, sunlight is directed onto the optical surface of the sample. The distance between the light source and the sample is adjusted while the surface is shaded. The distance between them ensures that the incident illuminance along the optical axis near the optical surface of the sample is 8000×(1±0.1)lx. Remove the obstruction and hold for 30 seconds;

b) Modulate the above sunlight irradiation with modulation frequencies of (1±0.2) Hz and (10±1) Hz respectively, and hold each for 30 s.

5.17.1.2 During the test and for 5 minutes afterward, observe and record the working status of the sample.

5.17.1.3 After the test, check the performance of the sample according to the requirements of the corresponding national standard.

5.17.2 Test Equipment Lux meter, stopwatch.

5.18.1 Test Procedure

5.18.1.1 Install the sample in the ultraviolet aging test chamber specified in Appendix B, turn on the sample power supply, and put it into normal working condition.

5.18.1.2 Test the samples according to the fluorescent ultraviolet lamp aging conditions specified in Table 2.

5.18.1.3 During the test, observe and record the working status of the sample.

5.18.1.4 After the test, check the performance of the sample according to the requirements of the corresponding national standard.

5.18.2 Test Equipment The testing equipment shall comply with the provisions of Appendix B.

5.19.1 Test Procedure

5.19.1.1 Arrange the test specimens according to the requirements of GB/T 17626.3 to ensure that the specimens are under normal monitoring conditions.

5.19.1.2 Apply radio frequency electromagnetic field radiation interference to the sample under the conditions shown in Table 3 according to the test method specified in GB/T 17626.3.

5.19.1.3 During the test, observe and record the working status of the sample.

5.19.1.4 After the test, check the performance of the sample according to the requirements of the corresponding national standard.

5.19.2 Test Equipment The testing equipment shall comply with the provisions of GB/T 17626.3.

5.20.1 Test Procedure

5.20.1.1 Arrange the test specimens according to the requirements of GB/T 17626.4 to ensure that the specimens are under normal monitoring conditions.

5.20.1.2 Apply electrical fast transient burst interference to the specimen under the conditions shown in Table 3 according to the test method specified in GB/T 17626.4.

5.20.1.3 During the test, observe and record the working status of the sample.

5.20.1.4 After the test, check the performance of the sample according to the requirements of the corresponding national standard.

5.20.2 Test Equipment The testing equipment shall comply with the provisions of GB/T 17626.4.

5.21.1 Test Procedure

5.21.1.1 Arrange the test specimens according to the requirements of GB/T 17626.5 to ensure that the specimens are under normal monitoring conditions.

5.21.1.2 Apply surge (impact) interference to the specimen under the conditions shown in Table 3 according to the test method specified in GB/T 17626.5.

5.21.1.3 During the test, observe and record the working status of the sample.

5.21.1.4 After the test, check the performance of the sample according to the requirements of the corresponding national standard.

5.21.2 Test Equipment The testing equipment shall comply with the provisions of GB/T 17626.5.

6.2 Type Testing

6.2.1 The type test items are the test items specified in Chapter

5.Test samples are drawn from products that have passed the factory inspection.

7.1 Product Marking

7.1.1 Each automatic fire alarm system device shall be marked with an explosion-proof mark (if applicable), the type of applicable location, and the applicable ambient temperature.

7.1.2 If uncommon symbols or abbreviations are used in the product marking information, they should be noted in the instruction manual provided with the controller.

7.2 Quality Inspection Marks Each automatic fire alarm system device...