GB 4717-1993 General technical requirements for fire alarm controllers
Some standard content:
National Standard of the People's Republic of China
Fire alarm controller
General technical conditions
General technical conditionsfor fire alarm control units1Subject content and scope of application
This standard specifies the product classification, technical requirements, test methods and markings of fire alarm controllers. GB 4717--93
Replaces GB 4717m 84
This standard applies to fire alarm controllers installed in general industrial and civil buildings. Fire alarm controllers installed in other environments with special performance should also refer to this standard, except for special requirements that should be separately specified by relevant standards. 2 Reference standards
GB156 Rated voltage
GB2423.1 Basic environmental test procedures for electric and electronic products Test A: Low temperature test method GB2423.2 Basic environmental test procedures for electric and electronic products Test B: High temperature test method
Test Ca: Steady damp heat test method
GB2423.3 Basic environmental test procedures for electric and electronic products GB2423.5 Basic environmental test procedures for electric and electronic products Test E: Shock test method
Test Fc: Vibration (sinusoidal) test method GB2423.10 Basic environmental test procedures for electric and electronic products GB6113 Electromagnetic interference measuring instrument
3 Product classification
3.1 Fire alarm controllers can be divided into: single-channel fire alarm controller;
b, multi-channel fire alarm controller according to their capacity.
3.2 Fire alarm controllers can be divided into regional fire alarm controllers according to their use:
Centralized fire alarm controllers;
Universal fire alarm controllers,
3.3 Fire alarm controllers can be divided into land-based fire alarm controllers according to their use environment;
Marine plastic fire alarm controllers.
3.4 Fire alarm controllers can be divided into desktop fire alarm controllers according to their structural types;
Cabinet fire alarm controllers;
Wall-mounted fire alarm controllers.
3.5 Fire alarm controllers can be divided into explosion-proof performance according to their explosion-proof performance:
Approved by the State Technical Supervision Bureau on April 10, 1993 and implemented on November 1, 1993
a. Explosion-proof fire alarm controllers;
b. Non-explosion-proof fire alarm controllers.
4 Technical requirements
GB4717-93
4.1 The DC operating voltage of the fire alarm controller shall comply with the provisions of the national standard GB156, and DC 24V may be used preferentially. 4.2 Overall performance
4.2.1 The fire alarm controller shall have the following basic functions: 4.2.1.1 It can supply power to the fire alarm controller and other components connected to it. 4.2.1.2 It can directly or indirectly receive fire alarm signals from fire detectors and other fire alarm triggering devices, send out sound and light alarm signals, indicate the location of fire occurrence, and maintain the signal; the light alarm signal should not be manually eliminated before the fire alarm controller is reset; the sound alarm signal should be manually eliminated, but it should be able to restart when the fire alarm signal is input again 4.2.1.3 When the following faults occur inside the fire alarm controller, between the fire alarm controller and the fire detector, or between the fire alarm controller and the components that transmit the fire alarm signal, it should be able to send out sound and light fault signals that are obviously different from the fire alarm signal within 100s:
The connection line between the fire alarm controller and the fire detector, the manual alarm button and the components that transmit the fire alarm signal is broken or short-circuited (except for the fire alarm signal when it is short-circuited); b. The grounding of the connection line between the fire alarm controller and the fire detector or other connected components has a fault that prevents the normal operation of the fire alarm controller;
c. The connection line between the fire alarm controller and the fire display panel located at a distance is broken or short-circuited; d. The main power supply of the fire alarm controller is undervoltage; the connection line between the charger for charging the backup power supply and the backup power supply is broken or short-circuited; e.
f. The connection line between the backup power supply and its load is broken or short-circuited, or the voltage of the backup power supply alone is insufficient to ensure the normal operation of the fire alarm controller;
g. The printer connection line of the fire alarm controller that only uses a printer as a means of recording the fire alarm time is broken or short-circuited. For a, b, and c type faults, the location should be indicated, and for d, e, f, and g type faults, the type should be indicated. The sound fault signal should be able to be manually eliminated (if the fault cannot be started after elimination, there should be a mute indication), and the optical fault signal should be able to be maintained before the fault is eliminated; during the fault period, if there is a fire alarm signal input in the non-fault circuit, the fire alarm controller should be able to send a fire alarm signal. 4.2.1.4 The fire alarm controller should have a local inspection function (hereinafter referred to as self-test). When the fire alarm controller performs the self-test function, it should cut off the external equipment controlled by it. If the time required for each self-test of the fire alarm controller exceeds 1 minute or it cannot automatically stop the self-test function, during the self-test period, if there is a fire alarm signal input to the non-self-test circuit, the fire alarm controller should be able to send out fire alarm sound and light signals. 4.2.1.5 The fire alarm controller should have a timing device to display or record the fire alarm time, and its daily timing error should not exceed 30$; when only a printer is used to record the fire alarm time, the month, day, hour, minute and other information should be printed out. 4.2.1.6 The fire alarm controller should be able to perform functional checks on all indicator lights and displays on its panel. 4.2.1.7 When the response threshold of the fire detector connected to it can be changed through the fire alarm controller, the fire alarm controller should be able to indicate the set response threshold of the fire detector. 4.2.1.8 The operating functions of the fire alarm controller shall be divided into levels according to the provisions of Table 1: Level 1 Functions allowed to be operated by everyone
Level II Functions allowed to be operated by special operators Level TI Functions allowed to be operated by engineering design and maintenance personnel 370
Operation items
GB 4717-—93
Reset the fire alarm controller
Eliminate the sound and light signals of external sound and light indicating equipment Eliminate the sound signal of the fire alarm controller
Isolate the fire detector or other components
Isolate the signal transmission path to the fire alarm receiving station Open and close the fire alarm controller
Isolate the external equipment controlled by it
Adjust the timing device
Input or change data
Note: P.-prohibited, O-optional, M-operable by operators at this level. Level 1
Keys and operation numbers should be used to enter the II and III operating function states. The key or operation number used to enter the III operating function state can be used to enter the II operating function state, but the key or operation number used to enter the II operating function state cannot be used to enter the II operating function state.
4.2.1.9 When the fire alarm controller is connected to the fire detectors and other components according to the maximum capacity and the longest wiring conditions allowed by its design, there should be no confusion in signal transmission.
4.2.1.10 The fire alarm controller should have a power conversion device. When the main power supply is cut off, it can automatically switch to the backup power supply; when the main power supply is restored, it can automatically switch to the main power supply; the working status of the main and backup power supplies should be indicated, and the main power supply should have overcurrent protection measures. The conversion of the main and backup power supplies should not cause the fire alarm controller to send a fire alarm signal. The capacity of the main power supply should be able to ensure that the fire alarm controller can work normally for 4 hours under the following maximum load conditions:
a. When the capacity of the fire alarm controller does not exceed 10 circuits (hereinafter referred to as circuits) constituting a single position number, all circuits are in the alarm state;
b. When the capacity of the fire alarm controller exceeds 10 circuits, 20% of the circuits (not less than 10 circuits, but not more than 30 circuits) are in the alarm state.
Note: For fire alarm controllers that allow parallel connection of fire detectors and other components in the same circuit, half of the maximum allowed parallel connection number should be used as the load of the circuit (except for parallel short-circuit loads). 4.2.1.11 The query, interruption, judgment and data processing operations in or controlled by the fire alarm controller should not exceed 10$ for the delay of receiving the fire alarm signal. In some cases, in order to reduce false alarms, the fire alarm signal received from the smoke detector can be delayed, but the delay time should not exceed 1 minute, and there should be a delay indication during the delay. 4.2.1.12 Fire alarm controllers with the function of isolating connected components should be equipped with component isolation status light indication, and can search or display the location of the isolated component.
4.2.1.13 The fire alarm controller shall be equipped with output contacts for controlling automatic fire fighting equipment or for other purposes. Its capacity and parameters shall be described in the relevant technical documents.
4.2.1.14 Fire alarm controllers that use bus transmission signals shall be equipped with isolators on their bus. When an isolator is activated, the fire alarm controller shall be able to indicate the location number of the isolated fire detectors, manual alarm buttons and other components. 4.2.2 The fire alarm controller shall be able to withstand the various tests under the climatic and environmental conditions specified in Table 2. The performance during and after the test shall meet the requirements of the relevant tests in Chapter 5 of this standard. 371
Test name
High temperature test
Low temperature test
Steady virtual heat test
Low temperature storage test
Test parameters
Duration
Duration
Relative humidityWww.bzxZ.net
Duration
Duration
GB 4717-93
Test conditions
Working state
De-energized state 14h
Normal monitoring state 2h
De-energized state 14h
Normal monitoring state 2 h
Normal regulatory state
De-energized state
4.2.3 The fire alarm controller shall be able to withstand the tests under the mechanical environmental conditions specified in Table 3. The performance during and after the test shall meet the requirements of the relevant tests in Chapter 5 of this standard. Table 3
Test name
Vibration (sinusoidal) test
Strike test
Collision test
Note: m is the mass of the sample.
Test parameters
Frequency cycle range
Drive amplitude (single amplitude)
Frequency sweep rate
Resonance point holding time
Drive vibration (single amplitude) at the same point
Vibration quotient
Acceleration (g)
Pulse duration
Strike number
Collision energy
Collision number
Test conditions
10~150~10 Hz
1 octave/min
10020m
6 planes, 18 times in total
Half sine wave
0.5±0.04J
3 times for each vulnerable point
Working state
De-energized state
De-energized state
Normal monitoring
4.2.4 The fire alarm controller shall be able to withstand the tests under the electrical interference conditions specified in Table 4. The performance during and after the test shall meet the requirements of the relevant tests in Chapter 5 of this standard. Table 4
Test name
Radiated electromagnetic field test
Electrostatic discharge test
Test parameters
Frequency range
Discharge voltage
Number of discharges
Test conditions
1 MHz-1 GHz
Working state
Normal monitoring state
Normal monitoring state
Test name
Electrical transient pulse test
Power transient test
Test parameters
Transient pulse voltage
GB 4717 -- 93
Continued Table 4
Test conditions
AC power line 2kV
Other connecting lines 1kV
Positive, negative
1min each time, 3 times in total
Power transient mode
Application times
Application mode
Power on 9s-power off 1s
500 times
6 times/min
Working state
Normal monitoring state
Normal monitoring state
4.2.5 When the fluctuation range of the AC power supply voltage does not exceed 19%+19% of the rated voltage (220V) and the frequency deviation does not exceed ±1% of the standard frequency (50Hz), the fire alarm controller should be able to work normally. The voltage stability (under maximum load conditions) and load stability of its output DC voltage should not be greater than 5%. If the output voltage is a pulse voltage, the fire alarm controller should work reliably under the conditions of maximum load and maximum line resistance.
4.2.6 The insulation resistance between the external live terminals and the housing, and between the power plug (or power wiring terminal) and the housing of the fire alarm controller with insulation requirements should be greater than 20MQ and 50MO respectively under normal atmospheric conditions. The above-mentioned parts should also be subjected to a withstand voltage test of 1 minute of AC current with a rated voltage tolerance frequency of 50Hz and a voltage of 1500V (effective value, when the rated voltage exceeds 50V) or 500V (effective value, when the rated voltage does not exceed 50V). The performance during and after the test should meet the requirements of the relevant tests in Chapter 5 of this standard. 4.2.7 The fire alarm controller should withstand the various tests specified in Chapter 5 of this standard and meet all the requirements of this standard. 4.2.8 Additional requirements for digital-alphanumeric display fire alarm controllers 4.2.8.1 The fire alarm controller should be able to process, store and display the status change information from each circuit. Under fire alarm conditions, the following requirements shall be met:
Fire alarm controllers with less than 100 circuits shall be able to process, store and display status change information from all circuits; b. Fire alarm controllers with more than 100 circuits shall be able to process, store and display status change information from 10% of the circuits (not less than 100 circuits).
4.2.8.2 Fire alarm controllers shall be able to display the total number of current fire alarm locations. 4.2.8.3 The display of alarm locations shall adopt a cyclic display mode, and each alarm location shall be confirmed manually. Each time it is manually activated, the display of one alarm location shall be changed. If an automatic cyclic display mode is adopted, it shall have a manual operation insertion function and meet the requirements of 4.2.8.4. 4.2.8.4 The first alarm location shall be displayed by one of the following methods: a. Use a dedicated display to continuously display the first alarm location; b. If there is no dedicated display, the following method shall be used for display: (1) Display the location of each fire alarm signal received in the order of reception; (2) After entering the loop display, if the loop display is interrupted for more than 30 seconds, it shall automatically restore to display the first alarm location. 4.2.8.5 It shall be possible to clearly display and distinguish the fire alarm signal, pre-alarm signal (if this function is available) or fault signal. 4.2.8.6 Fire alarm signal, pre-alarm signal and fault signal shall not be displayed alternately (except when using a color CRT display screen). 4.2.8.7 When displaying pre-alarm signal and fault signal, if a fire alarm signal is input, the fire alarm signal shall be displayed immediately; when displaying a fault signal, if a pre-alarm signal is input, the pre-alarm signal shall be displayed. 4.3 Performance of main components
4.3.1 General requirements
The main components of the fire alarm controller shall adopt standardized products that comply with relevant national standards and shall meet the requirements of the following relevant clauses.
4.3.2 Indicator lights
G number 4717—93
43.2.1 If tungsten filament bulbs are used, two lamps should be operated in parallel, otherwise there should be visual measures for filament breakage: 4.3.2.2 They should be marked with colors, red for fire alarm signal and pre-alarm signal, yellow or light yellow for fault signal, green for main power supply and backup power supply working normally, colors other than the above three colors can be used for other functions: 4.3.2.3 All indicator lights should be clearly marked with their functions: 4.3.2.4 Under ambient light conditions, the indicator lights should be clearly visible at a distance of 3m. 4.3.3 Alphanumeric display
4.3.3.1 The alphanumeric display showing the fire alarm information shall be readable at 0.8m under the condition of ambient light intensity of 0.15001x:
4.3.3.2 The alphanumeric display showing other information shall be readable at 0.8m under the condition of ambient light intensity of 100~5001x. 4.3.4 Electromagnetic relay
4.3.4.1 The contact shall adopt a double contact structure; 4.3.4.2 Non-enclosed relays shall be equipped with dustproof structure 4.3.4.3 The internal and external circuits of the fire alarm controller shall not be controlled by the same contact at the same time. 4.3.5 Transformer
The primary rated voltage of the transformer shall be below 300V, and the casing shall be equipped with a grounding terminal. 4.3.6 Electronic components
4.3.6.1 Three-proof (moisture-proof, rain-proof, and salt spray-proof) treatments should be carried out: 4.3.6.2 Parameters should meet the requirements of maximum operating voltage and maximum operating current. 4.3.7 Fuse
The rated current of fuses or other overcurrent protection devices used in power supply lines shall generally not be greater than 2 times the maximum operating current of the fire alarm control system. When the maximum operating current is above 6A, the current value of the fuse can be 1.5 times of it. The parameter value shall be clearly marked near the fuse or other overcurrent protection device. 4.3.8 Sound device
4.3.8.1 Under the rated operating voltage, the sound pressure level (A-weighted) of the internal and external sound devices at a distance of 1m from the center of the sound device shall be above 65dB and 85dB, and below 115dB respectively. 4.3.8.2 It shall be able to emit sound under 85% of the rated operating voltage. 4.3.9 Voltmeter
Indication The voltage value to be indicated by the voltmeter shall generally be about two-thirds of its full scale. 4.3.10 Terminals
Each terminal should be clearly and firmly marked with its number or symbol, and its purpose should be explained in the relevant documents. 4.3.11 Switches and buttons
Switches and buttons should be sturdy and durable, and their functions should be clearly marked on them (or in a nearby position). 4.3.12 Backup power supply
4.3.12.1 If the backup power supply uses a battery, the battery capacity should be able to provide the fire alarm controller with 8 hours of work in the monitoring state and 30 minutes of normal work under the following conditions:
. The capacity of the fire alarm controller does not exceed 4 circuits and is under maximum load conditions; b. When the capacity of the fire alarm controller exceeds 4 circuits, one-fifteenth of the circuit (not less than 4 circuits, but not more than 30 circuits) is in the alarm state;
4.3.12.2 The positive connection wire of the power supply is red, and the negative pole is black or blue! 4.3.12.3 Under the condition of not exceeding the limit discharge specified by the manufacturer, the battery should be able to be charged and restored to normal state within 48 hours: 4.3.12.4 Non-sealed batteries should be equipped with a special box to prevent corrosion gas leakage, and should not be placed in the fire alarm controller box. 4.3.13 Operating system and software of microprocessor (computer) controlled fire alarm controller 4.3.13.1 Programs should be stored in ROM, EPROM, E\PROM and other storage devices that are not easy to lose information. 371
G 4717-93
4.3.13.2 The file number and issue date should be marked on each storage device for storing files. 4.3.13.3 When manually or programmatically inputting data, no matter what the original state is, it should not cause accidental execution of the program. 4.3.13.4 When using a program to start a specific external alarm device, a reliable programming method should be provided to ensure that the specific external alarm device to be started works accurately and reliably.
4.3.13.5 The software should be able to prevent non-specialized personnel from making changes. 4.3.13.6 When the fire alarm controller uses a program to start the confirmation light of the fire detector, it should start the confirmation light of the corresponding detector at the same time as the fire alarm signal is issued. The confirmation light can be long-on or flashing, and it should be clearly different from the state of the confirmation light under the monitoring state. 5 Test method
5.1 Fire alarm controller test outline
5.1.1 See Table 5 for the test procedure of the fire alarm controller. Table 5
Item No.
Test Item
Main Component Inspection Test
Basic Function Test
Compliance Test
Power Supply Test
Electrical Transient Pulse Test
Power Supply Transient Test
Insulation Resistance Test
Pressure Test
Electrostatic Discharge Test
Radiated Electromagnetic Field Test
High Excitation Test
Low Temperature Test
Moving (Sinusoidal) Test
Impact Test
Stationary Humidity Test
Low Overflow Storage Test
Bump and Withdrawal Test
Note: V indicates that the sample is subjected to this test. 1
5.1.2 The test specified in this standard is a type test. The number of samples of the tested product shall be no less than three and shall be numbered before the test. 3
5.1.3 Tests 1 to 10 in the test procedure table for fire alarm controllers should be conducted before tests 11 to 17. Tests 1 and 2 must be conducted first.
5.1.4 The fire alarm controller under test (hereinafter referred to as the sample) should be inspected for appearance before the test. The test can only be conducted when it meets the following requirements:
There is no corrosion, peeling or blistering of the coating layer on the surface, and no obvious mechanical damage such as scratches, cracks, burrs, etc.; the fastening parts are not loose, and the control mechanism should be flexible; the text symbols and signs are clear.
GB 4717-93
5.1.5 If there is a description in the relevant provisions, all tests shall be carried out under the following normal atmospheric conditions: Humidity: 15~~35℃
Relative humidity: 45%~75%
Weather pressure: 86~106kPa
5.1.6 If there is no description in the relevant provisions, the tolerance of the spare test data is ±5%. 5.1.7 When it is not feasible to test the whole machine for a large sample, it is allowed to divide the sample into several parts for testing. 5.2 Main component inspection test
5.2.1 Purpose
Inspect the performance of the main components of the fire alarm controller. 5.2.2 Requirements
The performance of the main components of the fire alarm controller shall meet the requirements of 4 and 3. 5.2.3 Method
5.2.3.1 Check and record the function labeling of each switch and button of the sample. 5.2.3.2 Place the sample in the fire alarm state, measure and record the sound pressure level of the sample sound alarm signal, then reduce the power supply voltage to 85% of the rated voltage, observe and record the sample sound alarm signal. 5.2.3.3 Check and record the parameter markings of the fuse and other overcurrent protection devices and their actual capacity values. 5.2.3.4 Check and record the usage of indicator lights and displays, color identification, visibility and function markings, etc. 5.2, 3.5 Check and record the terminal markings. 5.2.3.6 For microprocessor (computer) controlled samples, check and record the operating system and software. 5.3 Basic Function Test
5.3.1
Inspect the basic functions of the fire alarm controller. 5.3.2 Requirements
The basic functions of the fire alarm controller shall meet the requirements of 4.2.1 and 4.2.8. 5.3.3 Method
5.3.3.1 According to the requirements of the normal monitoring state, connect at least two circuits in the sample alarm circuit to real loads, and connect the remaining circuits to equivalent loads, and turn on the power supply to put the sample in the normal monitoring state. 5.3.3.2 Put any circuit in the fire alarm state, observe and record the sample sound and light alarm signals and timing or printing conditions. 5.3.3.3 Put any circuit in the fire alarm state, first manually eliminate the sound alarm signal, and then put another circuit in the fire alarm state, observe and record the sample sound and light alarm signals: For the sample using an alphanumeric display, it should also be manually operated to display the sequence of received fire alarm signals, and record the displayed sequence, the total number of alarm locations, the first alarm indication and recovery, etc. 5.3.3.4 When the sample is in the fire alarm state, first cancel the input alarm signal of the fire alarm circuit, then manually reset the sample, observe and record the sample sound and light alarm signals. 5.3.3.5 Make any circuit, power supply or internal circuit of the sample in a fault state first, then operate the manual mute and reset mechanism in sequence, observe and record the sound and light signals of the sample and the indication of the fault location and fault type. For the alphanumeric display type sample, the other part should also be put in a fault state, observe and record the display changes. 5.3.3.6 When the sample is in a fault state, first eliminate the fault, then operate the manual reset mechanism (do not operate the automatic reset sample), observe and record the sound and light signals of the sample.
5.3.3.7 When the sample is in a fault state, make a non-fault circuit in a fire alarm state, observe and record the sound and light alarm signals of the sample.
5.3.3.8 Operate the sample self-test and indicator light and display inspection mechanism, observe and record the sound and light alarm signals of the sample: During the first basic function test, the action of the output contacts used to control external devices should also be checked. 5.3.3.9 For the samples that can isolate the connected components, operate the corresponding mechanism to isolate a certain component, observe and record the component isolation light indication and the indication of the isolated part of the component.
GB 4717--93
5.3.3.10 For the samples that can change the response reading of the connected detector, operate the corresponding mechanism to observe and record the change of the indicated detector response threshold.
5.3.3.11 For the samples that use bus to transmit signals, put a certain point of the bus in a short-circuit fault state, observe and record the isolator action and the indication of the part of the isolated component.
5.3.3.12 Check and record the classification of the sample operation functions (performed during the first basic function test). 5.3.3.13 Cut off the main power supply first, then restore it to normal, observe and record the conversion between the main power supply and the backup power supply and the changes in the power indicator light.
5+3.3.14 Switch the main power supply to the backup power supply and repeat the test process of 5.3.3.2~5.3.3.11. 5.4 Power-on test
5.4.1 Day
Inspect the stability of the fire alarm controller under normal atmospheric conditions. 5.4.2 Requirements
5.4.2.1 During the test, the sample should not issue a fire alarm or fault signal. 5.4.2.2 After the test, the performance of the sample should meet the requirements of 5.3.2. 5.4.3 Method
According to the requirements of the normal monitoring state, connect the sample to the equivalent load, turn on the power, put the sample in the normal monitoring state, and run continuously for 45 days. At the end of the test, the basic function test of the sample shall be carried out according to the provisions of 5.3. 5.5 Power supply test
5.5.1 The adaptability of the fire alarm controller to the voltage fluctuation and load change of the power supply of the conversion network and the capacity of the power supply shall be tested. 5.5.2 Requirements
5.5.2.1 The main power supply shall meet the requirements of 4.2.1.10 and 4.2.5.5.2.2 After the main power supply test, the performance of the sample shall meet the requirements of 5.3.2. 5.5.2.3 The backup power supply shall meet the requirements of 4.3.12. 5.5.3 Method
5.5.3.1 Main power supply test
a. According to the requirements of the maximum working current, connect the sample with the equivalent load and the test device. Connect the power supply of the test device and adjust the test device so that the input voltage of the sample is 220V (50Hz). Measure and record the output DC voltage value U of the sample. . . Adjust the test device so that the sample input voltage is 187V (50Hz). After the sample output DC voltage reaches stability, measure and record the voltage value. Adjust the test device so that the sample input voltage is 242V (50Hz). After the sample output DC voltage reaches steady state, measure and record the voltage value Uo1.
When the equivalent load of the sample is the value under normal monitoring state, repeat the above test. Calculate the relative change of the sample output DC voltage according to the following formula and take the maximum value. AU.
SuU.
Where: AUn-Uo-Uat
c, when the equivalent load of the sample is the value under the maximum working current condition, adjust the test device so that the sample input voltage is 242V (50Hz), measure and record the sample output DC voltage value Uo1. Then make the equivalent load of the sample step change to the value under the blue monitoring state, after the sample output DC voltage reaches steady state, measure and record the voltage value U1. Adjust the test device so that the input voltage of the sample is 187V (50Hz), and repeat the above test. Calculate the relative change of voltage according to the following formula and take the maximum value. 377
Where: AU. =U. -Uo1.
GB4717-93
d. Power the sample with the main power supply and make it work continuously for 4 hours under the condition of maximum working current. Observe and record the working condition of the sample. Then restore the sample to the monitoring state and perform basic function test on it according to the provisions of Article 5.3. 5.5.3.2 Backup power supply test
Power the sample with the backup power supply and make it work under normal monitoring state for 8 hours. Then, for the sample with a capacity of no more than 4 circuits, make it work under maximum load condition for 30 minutes; for the sample with a capacity of more than 4 circuits, make it work for 30 minutes under the condition that one-fifteenth of the circuit (not less than 4 circuits, but not more than 30 circuits) is in the fire alarm state. Then, cut off the sound alarm signal and make any circuit that was originally in the monitoring state in the fire alarm state. Observe and record the sound and light alarm signal of the sample. 5.6 Electrical transient pulse test
5.6.1 Purpose
To test the fire alarm controller's ability to resist electrical transient pulse interference. 5.6.2 Requirements
5.6.2.1 During the test, the sample shall not send out fire alarm signals and irrecoverable fault signals. 5.6.2.2 After the test, the performance of the sample shall meet the requirements of 5.3.2. 5.6.3 Method
5.6.3.1 According to the requirements of the normal monitoring state, connect the sample to the equivalent load, turn on the power supply, and put the sample in the normal monitoring state. 5.6.3.2 Apply a positive and negative polarity transient pulse voltage of 2000V±10% and a frequency of 2.5kHz±20% to the AC power line of the sample (see Figure 1 for waveform), and apply the transient pulse voltage for 15ms every 300ms (see Figure 2). The transient pulse voltage is applied for 60±3°s each time, and it is applied three times in total. The time interval between applying two transient pulse voltages is 10s. During the test, monitor whether the sample sends out fire alarm and fault signals. 5.6.3.3 Apply a positive and negative polarity transient pulse voltage of 1000V ± 10% and a frequency of 5kHz ± 20% to the other external connection lines of the sample (see Figure 1 for waveform). Apply a transient pulse voltage for 15ms every 300ms (see Figure 2). Each application of the transient pulse voltage is 60 ± 1°s, and is applied three times in total. The time interval between the application of two transient pulse voltages is 10s. During the test, monitor whether the sample sends out fire alarm and fault signals. 5.6.3.4 After the test, perform a basic function test on the sample in accordance with the provisions of Article 5.3. u
5ns+30%
50ns 30%
Figure 1 Single pulse waveform when 500 is loaded
5.6.4 Test equipment
GB4717--93
Variable pulse
Repetition period (depends on the transient pulse electric bed) The number of pulses is determined by the frequency
Figure 2 Group of transient pulse waveforms
Transient generator: output transient pulse voltage 1000V+10%, 2000V+10%, pulse frequency 5kHz±20%, 2.5kHz±20%, output impedance 500, output 15ms transient pulse voltage every 300ms, polarity is positive and negative. Its electrical schematic is shown in Figure 3. The coupling/decoupling network used in the test is shown in Figures 4 and 5. Figure 3 Electrical schematic diagram of electrical transient pulse generator
U-high voltage power supply; R-charging resistor, Ce-energy storage capacitor, R. -Pulse shaping resistor; R—fire-proof matching resistor Ca DC capacitor
High-voltage coaxial
Connecting terminal
5.7 Power supply transient test
5.7.1 Purpose
Filter
Decoupling part
GB 4717-93
Ferrite
Signal of transient pulse from the door
Ce=33nF
Coupling part
Figure 4 Coupling/decoupling network a for AC power line test
Coupling board
Insulating support
The grounding plate surface is at least
Im2 and each side is 0.1m longer than the coupling
board
Figure 5 Coupling/decoupling network for other external connecting line tests to check the ability of the fire alarm controller to resist power supply transient interference. 5.7.2 Requirements
5.7.2.1 During the test, the sample shall not send out fire alarms and irreversible fault signals. 5.7.2.2 After the test, the performance of the sample shall meet the requirements of 5.3.2. 5.7.3 Methods
Reference ground terminal
Dimension unit: mm
High-voltage coaxial
Connection terminal
According to the requirements of the normal monitoring state, connect the sample to the equivalent load and connect the sample to the power transient test device so that the sample is in the normal visual state first.
Turn on the test device and make the main power supply of the sample continuously switch on and off 500 times according to the fixed procedure of "power on (9s)-power off (1s)\, and observe and record the sound and light alarm signals of the sample.1 day
Test the adaptability of the fire alarm controller to the voltage fluctuation and load change of the power supply of the conversion network and the capacity of the power supply. 5.5.2 Requirements
5.5.2.1 The main power supply shall meet the requirements of 4.2.1.10 and 4.2.5. 5.5.2.2 After the main power supply test, the performance of the sample shall meet the requirements of 5.3.2. 5.5.2.3 The backup power supply shall meet the requirements of 4.3.12. 5.5.3 Method
5.5.3.1 Main power supply test
a. According to the requirements of the maximum working current, connect the sample with the equivalent load and the test device. Turn on the power supply of the test device and adjust the test device so that the input voltage of the sample is 220V (50Hz). Measure and record the output DC voltage value U of the sample. . . . Adjust the test device so that the input voltage of the sample is 187V (50Hz). After the output DC voltage of the sample reaches stability, measure and record the voltage value 0. Adjust the test device so that the sample input voltage is 242V (50Hz), and measure and record the voltage value Uo1 after the sample output DC voltage reaches a steady state.
When the equivalent load of the sample is the value under normal monitoring state, repeat the above test. Calculate the relative change of the sample output DC voltage according to the following formula and take its maximum value. AU.
SuU.
Where: AUn-Uo-Uat
c, when the equivalent load of the sample is the value under the maximum working current condition, adjust the test device so that the sample input voltage is 242V (50Hz), and measure and record the sample output DC voltage value Uo1. Then make the equivalent load of the sample step change to the value under the blue monitoring state, and measure and record the voltage value U1 after the sample output DC voltage reaches a steady state. Adjust the test device so that the sample input voltage is 187V (50Hz), and repeat the above test. Calculate the relative change of voltage according to the following formula and take its maximum value. 377
Where: AU. =U. -Uo1.
GB4717—93
d. Power the sample with the main power supply and make it work continuously for 4 hours under the condition of maximum working current. Observe and record the working condition of the sample. Then restore the sample to the monitoring state and conduct basic function test according to the provisions of Article 5.3. 5.5.3.2 Backup power supply test
Power the sample with the backup power supply and make it work for 8 hours under normal monitoring state. Then, for the sample with capacity not exceeding 4 circuits, make it work for 30 minutes under the condition of maximum load. For the sample with capacity exceeding 4 circuits, make it work for 30 minutes under the condition that one-fifteenth of the circuit (not less than 4 circuits, but not more than 30 circuits) is in the fire alarm state. Then, cut off the sound alarm signal and make any circuit that was originally in the monitoring state in the fire alarm state. Observe and record the sound and light alarm signal of the sample. 5.6 Electrical transient pulse test
5.6.1 Purpose
To test the fire alarm controller's ability to resist electrical transient pulse interference. 5.6.2 Requirements
5.6.2.1 During the test, the sample shall not send out fire alarm signals and irrecoverable fault signals. 5.6.2.2 After the test, the performance of the sample shall meet the requirements of 5.3.2. 5.6.3 Method
5.6.3.1 According to the requirements of the normal monitoring state, connect the sample to the equivalent load, turn on the power supply, and put the sample in the normal monitoring state. 5.6.3.2 Apply a positive and negative polarity transient pulse voltage of 2000V±10% and a frequency of 2.5kHz±20% to the AC power line of the sample (see Figure 1 for waveform), and apply the transient pulse voltage for 15ms every 300ms (see Figure 2). The transient pulse voltage is applied for 60±3°s each time, and it is applied three times in total. The time interval between applying two transient pulse voltages is 10s. During the test, monitor whether the sample sends out fire alarm and fault signals. 5.6.3.3 Apply a positive and negative polarity transient pulse voltage of 1000V ± 10% and a frequency of 5kHz ± 20% to the other external connection lines of the sample (see Figure 1 for waveform). Apply a transient pulse voltage for 15ms every 300ms (see Figure 2). Each application of the transient pulse voltage is 60 ± 1°s, and is applied three times in total. The time interval between the application of two transient pulse voltages is 10s. During the test, monitor whether the sample sends out fire alarm and fault signals. 5.6.3.4 After the test, perform a basic function test on the sample in accordance with the provisions of Article 5.3. u
5ns+30%
50ns 30%
Figure 1 Single pulse waveform when 500 is loaded
5.6.4 Test equipment
GB4717--93
Variable pulse
Repetition period (depends on the transient pulse electric bed) The number of pulses is determined by the frequency
Figure 2 Group of transient pulse waveforms
Transient generator: output transient pulse voltage 1000V+10%, 2000V+10%, pulse frequency 5kHz±20%, 2.5kHz±20%, output impedance 500, output 15ms transient pulse voltage every 300ms, polarity is positive and negative. Its electrical schematic is shown in Figure 3. The coupling/decoupling network used in the test is shown in Figures 4 and 5. Figure 3 Electrical schematic diagram of electrical transient pulse generator
U-high voltage power supply; R-charging resistor, Ce-energy storage capacitor, R. -Pulse shaping resistor; R—fire-proof matching resistor Ca DC capacitor
High-voltage coaxial
Connecting terminal
5.7 Power supply transient test
5.7.1 Purpose
Filter
Decoupling part
GB 4717-93
Ferrite
Signal of transient pulse from the door
Ce=33nF
Coupling part
Figure 4 Coupling/decoupling network a for AC power line test
Coupling board
Insulating support
The grounding plate surface is at least
Im2 and each side is 0.1m longer than the coupling
board
Figure 5 Coupling/decoupling network for other external connecting line tests to check the ability of the fire alarm controller to resist power supply transient interference. 5.7.2 Requirements
5.7.2.1 During the test, the sample shall not send out fire alarms and irreversible fault signals. 5.7.2.2 After the test, the performance of the sample shall meet the requirements of 5.3.2. 5.7.3 Methods
Reference ground terminal
Dimension unit: mm
High-voltage coaxial
Connection terminal
According to the requirements of the normal monitoring state, connect the sample to the equivalent load and connect the sample to the power transient test device so that the sample is in the normal visual state first.
Turn on the test device and make the main power supply of the sample continuously switch on and off 500 times according to the fixed procedure of "power on (9s)-power off (1s)\, and observe and record the sound and light alarm signals of the sample.1 day
Test the adaptability of the fire alarm controller to the voltage fluctuation and load change of the power supply of the conversion network and the capacity of the power supply. 5.5.2 Requirements
5.5.2.1 The main power supply shall meet the requirements of 4.2.1.10 and 4.2.5. 5.5.2.2 After the main power supply test, the performance of the sample shall meet the requirements of 5.3.2. 5.5.2.3 The backup power supply shall meet the requirements of 4.3.12. 5.5.3 Method
5.5.3.1 Main power supply test
a. According to the requirements of the maximum working current, connect the sample with the equivalent load and the test device. Turn on the power supply of the test device and adjust the test device so that the input voltage of the sample is 220V (50Hz). Measure and record the output DC voltage value U of the sample. . . . Adjust the test device so that the input voltage of the sample is 187V (50Hz). After the output DC voltage of the sample reaches stability, measure and record the voltage value 0. Adjust the test device so that the sample input voltage is 242V (50Hz), and measure and record the voltage value Uo1 after the sample output DC voltage reaches a steady state.
When the equivalent load of the sample is the value under normal monitoring state, repeat the above test. Calculate the relative change of the sample output DC voltage according to the following formula and take its maximum value. AU.
SuU.
Where: AUn-Uo-Uat
c, when the equivalent load of the sample is the value under the maximum working current condition, adjust the test device so that the sample input voltage is 242V (50Hz), and measure and record the sample output DC voltage value Uo1. Then make the equivalent load of the sample step change to the value under the blue monitoring state, and measure and record the voltage value U1 after the sample output DC voltage reaches a steady state. Adjust the test device so that the sample input voltage is 187V (50Hz), and repeat the above test. Calculate the relative change of voltage according to the following formula and take its maximum value. 377
Where: AU. =U. -Uo1.
GB4717—93
d. Power the sample with the main power supply and make it work continuously for 4 hours under the condition of maximum working current. Observe and record the working condition of the sample. Then restore the sample to the monitoring state and conduct basic function test according to the provisions of Article 5.3. 5.5.3.2 Backup power supply test
Power the sample with the backup power supply and make it work for 8 hours under normal monitoring state. Then, for the sample with capacity not exceeding 4 circuits, make it work for 30 minutes under the condition of maximum load. For the sample with capacity exceeding 4 circuits, make it work for 30 minutes under the condition that one-fifteenth of the circuit (not less than 4 circuits, but not more than 30 circuits) is in the fire alarm state. Then, cut off the sound alarm signal and make any circuit that was originally in the monitoring state in the fire alarm state. Observe and record the sound and light alarm signal of the sample. 5.6 Electrical transient pulse test
5.6.1 Purpose
To test the fire alarm controller's ability to resist electrical transient pulse interference. 5.6.2 Requirements
5.6.2.1 During the test, the sample shall not send out fire alarm signals and irrecoverable fault signals. 5.6.2.2 After the test, the performance of the sample shall meet the requirements of 5.3.2. 5.6.3 Method
5.6.3.1 According to the requirements of the normal monitoring state, connect the sample to the equivalent load, turn on the power supply, and put the sample in the normal monitoring state. 5.6.3.2 Apply a positive and negative polarity transient pulse voltage of 2000V±10% and a frequency of 2.5kHz±20% to the AC power line of the sample (see Figure 1 for waveform), and apply the transient pulse voltage for 15ms every 300ms (see Figure 2). The transient pulse voltage is applied for 60±3°s each time, and it is applied three times in total. The time interval between applying two transient pulse voltages is 10s. During the test, monitor whether the sample sends out fire alarm and fault signals. 5.6.3.3 Apply a positive and negative polarity transient pulse voltage of 1000V ± 10% and a frequency of 5kHz ± 20% to the other external connection lines of the sample (see Figure 1 for waveform). Apply a transient pulse voltage for 15ms every 300ms (see Figure 2). Each application of the transient pulse voltage is 60 ± 1°s, and is applied three times in total. The time interval between the application of two transient pulse voltages is 10s. During the test, monitor whether the sample sends out fire alarm and fault signals. 5.6.3.4 After the test, perform a basic function test on the sample in accordance with the provisions of Article 5.3. u
5ns+30%
50ns 30%
Figure 1 Single pulse waveform when 500 is loaded
5.6.4 Test equipment
GB4717--93
Variable pulse
Repetition period (depends on the transient pulse electric bed) The number of pulses is determined by the frequency
Figure 2 Group of transient pulse waveforms
Transient generator: output transient pulse voltage 1000V+10%, 2000V+10%, pulse frequency 5kHz±20%, 2.5kHz±20%, output impedance 500, output 15ms transient pulse voltage every 300ms, polarity is positive and negative. Its electrical schematic is shown in Figure 3. The coupling/decoupling network used in the test is shown in Figures 4 and 5. Figure 3 Electrical schematic diagram of electrical transient pulse generator
U-high voltage power supply; R-charging resistor, Ce-energy storage capacitor, R. -Pulse shaping resistor; R—fire-proof matching resistor Ca DC capacitor
High-voltage coaxial
Connecting terminal
5.7 Power supply transient test
5.7.1 Purpose
Filter
Decoupling part
GB 4717-93
Ferrite
Signal of transient pulse from the door
Ce=33nF
Coupling part
Figure 4 Coupling/decoupling network a for AC power line test
Coupling board
Insulating support
The grounding plate surface is at least
Im2 and each side is 0.1m longer than the coupling
board
Figure 5 Coupling/decoupling network for other external connecting line tests to check the ability of the fire alarm controller to resist power supply transient interference. 5.7.2 Requirements
5.7.2.1 During the test, the sample shall not send out fire alarms and irreversible fault signals. 5.7.2.2 After the test, the performance of the sample shall meet the requirements of 5.3.2. 5.7.3 Methods
Reference ground terminal
Dimension unit: mm
High-voltage coaxial
Connection terminal
According to the requirements of the normal monitoring state, connect the sample to the equivalent load and connect the sample to the power transient test device so that the sample is in the normal visual state first.
Turn on the test device and make the main power supply of the sample continuously switch on and off 500 times according to the fixed procedure of "power on (9s)-power off (1s)\, and observe and record the sound and light alarm signals of the sample.AUn-Uo-Uat
c. When the equivalent load of the sample is the value under the condition of maximum working current, adjust the test device so that the input voltage of the sample is 242V (50Hz), measure and record the output DC voltage value Uo1 of the sample. Then make the equivalent load of the sample step change to the value under the blue viewing state, and after the output DC voltage of the sample reaches a steady state, measure and record the voltage value U1. Adjust the test device so that the input voltage of the sample is 187V (50Hz), and repeat the above test. Calculate the relative change of voltage according to the following formula and take the maximum value. 377
Where: AU. =U. -Uo1.
GB4717—93
d. Powered by the main power supply, make the sample work continuously for 4h under the condition of maximum working current, observe and record the working condition of the sample, and then restore the sample to the monitoring state and perform basic function test on it according to the provisions of Article 5.3. 5.5.3.2 Backup power supply test
Powered by the backup power supply, the sample is first operated in the normal monitoring state for 8 hours, and then the sample with a capacity of no more than 4 circuits is operated under the maximum load condition for 30 minutes; for the sample with a capacity of more than 4 circuits, it is operated for 30 minutes under the condition that one-fifteenth of the circuit (not less than 4 circuits, but not more than 30 circuits) is in the fire alarm state. Then, cut off the sound alarm signal, and make any circuit that was originally in the monitoring state in the fire alarm state, and observe and record the sound and light alarm signals of the sample. 5.6 Electrical transient pulse test
5.6.1 Purpose
To test the ability of the fire alarm controller to resist electrical transient pulse interference. 5.6.2 Requirements
5.6.2.1 During the test, the sample should not send out a fire alarm signal and an irreversible fault signal. 5.6.2.2 After the test, the performance of the sample should meet the requirements of Article 5.3.2. 5.6.3 Method
5.6.3.1 According to the requirements of the normal monitoring state, connect the sample to the equivalent load and turn on the power supply to put the sample in the normal monitoring state. 5.6.3.2 Apply a positive and negative polarity transient pulse voltage of 2000V±10% and a frequency of 2.5kHz±20% to the AC power line of the sample (see Figure 1 for the waveform). Apply the transient pulse voltage for 15ms every 300ms (see Figure 2). The transient pulse voltage is applied for 60±3°s each time, and is applied three times in total. The time interval between applying two transient pulse voltages is 10s. During the test, monitor whether the sample sends out fire alarm and fault signals. 5.6.3.3 Apply a positive and negative polarity transient pulse voltage of 1000V ± 10% and a frequency of 5kHz ± 20% to the other external connection lines of the sample (see Figure 1 for waveform). Apply a transient pulse voltage for 15ms every 300ms (see Figure 2). Each application of the transient pulse voltage is 60 ± 1°s, and is applied three times in total. The time interval between the application of two transient pulse voltages is 10s. During the test, monitor whether the sample sends out fire alarm and fault signals. 5.6.3.4 After the test, perform a basic function test on the sample in accordance with the provisions of Article 5.3. u
5ns+30%
50ns 30%
Figure 1 Single pulse waveform when 500 is loaded
5.6.4 Test equipment
GB4717--93
Variable pulse
Repetition period (depends on the transient pulse electric bed) The number of pulses is determined by the frequency
Figure 2 Group of transient pulse waveforms
Transient generator: output transient pulse voltage 1000V+10%, 2000V+10%, pulse frequency 5kHz±20%, 2.5kHz±20%, output impedance 500, output 15ms transient pulse voltage every 300ms, polarity is positive and negative. Its electrical schematic is shown in Figure 3. The coupling/decoupling network used in the test is shown in Figures 4 and 5. Figure 3 Electrical schematic diagram of electrical transient pulse generator
U-high voltage power supply; R-charging resistor, Ce-energy storage capacitor, R. -Pulse shaping resistor; R—fire-proof matching resistor Ca DC capacitor
High-voltage coaxial
Connecting terminal
5.7 Power supply transient test
5.7.1 Purpose
Filter
Decoupling part
GB 4717-93
Ferrite
Signal of transient pulse from the door
Ce=33nF
Coupling part
Figure 4 Coupling/decoupling network a for AC power line test
Coupling board
Insulating support
The grounding plate surface is at least
Im2 and each side is 0.1m longer than the coupling
board
Figure 5 Coupling/decoupling network for other external connecting line tests to check the ability of the fire alarm controller to resist power supply transient interference. 5.7.2 Requirements
5.7.2.1 During the test, the sample shall not send out fire alarms and irreversible fault signals. 5.7.2.2 After the test, the performance of the sample shall meet the requirements of 5.3.2. 5.7.3 Methods
Reference ground terminal
Dimension unit: mm
High-voltage coaxial
Connection terminal
According to the requirements of the normal monitoring state, connect the sample to the equivalent load and connect the sample to the power transient test device so that the sample is in the normal visual state first.
Turn on the test device and make the main power supply of the sample continuously switch on and off 500 times according to the fixed procedure of "power on (9s)-power off (1s)\, and observe and record the sound and light alarm signals of the sample.AUn-Uo-Uat
c. When the equivalent load of the sample is the value under the condition of maximum working current, adjust the test device so that the input voltage of the sample is 242V (50Hz), measure and record the output DC voltage value Uo1 of the sample. Then make the equivalent load of the sample step change to the value under the blue viewing state, and after the output DC voltage of the sample reaches a steady state, measure and record the voltage value U1. Adjust the test device so that the input voltage of the sample is 187V (50Hz), and repeat the above test. Calculate the relative change of voltage according to the following formula and take the maximum value. 377
Where: AU. =U. -Uo1.
GB4717—93
d. Powered by the main power supply, make the sample work continuously for 4h under the condition of maximum working current, observe and record the working condition of the sample, and then restore the sample to the monitoring state and perform basic function test on it according to the provisions of Article 5.3. 5.5.3.2 Backup power supply test
Powered by the backup power supply, the sample is first operated in the normal monitoring state for 8 hours, and then the sample with a capacity of no more than 4 circuits is operated under the maximum load condition for 30 minutes; for the sample with a capacity of more than 4 circuits, it is operated for 30 minutes under the condition that one-fifteenth of the circuit (not less than 4 circuits, but not more than 30 circuits) is in the fire alarm state. Then, cut off the sound alarm signal, and make any circuit that was originally in the monitoring state in the fire alarm state, and observe and record the sound and light alarm signals of the sample. 5.6 Electrical transient pulse test
5.6.1 Purpose
To test the ability of the fire alarm controller to resist electrical transient pulse interference. 5.6.2 Requirements
5.6.2.1 During the test, the sample should not send out a fire alarm signal and an irreversible fault signal. 5.6.2.2 After the test, the performance of the sample should meet the requirements of Article 5.3.2. 5.6.3 Method
5.6.3.1 According to the requirements of the normal monitoring state, connect the sample to the equivalent load and turn on the power supply to put the sample in the normal monitoring state. 5.6.3.2 Apply a positive and negative polarity transient pulse voltage of 2000V±10% and a frequency of 2.5kHz±20% to the AC power line of the sample (see Figure 1 for the waveform). Apply the transient pulse voltage for 15ms every 300ms (see Figure 2). The transient pulse voltage is applied for 60±3°s each time, and is applied three times in total. The time interval between applying two transient pulse voltages is 10s. During the test, monitor whether the sample sends out fire alarm and fault signals. 5.6.3.3 Apply a positive and negative polarity transient pulse voltage of 1000V ± 10% and a frequency of 5kHz ± 20% to the other external connection lines of the sample (see Figure 1 for waveform). Apply a transient pulse voltage for 15ms every 300ms (see Figure 2). Each application of the transient pulse voltage is 60 ± 1°s, and is applied three times in total. The time interval between the application of two transient pulse voltages is 10s. During the test, monitor whether the sample sends out fire alarm and fault signals. 5.6.3.4 After the test, perform a basic function test on the sample in accordance with the provisions of Article 5.3. u
5ns+30%
50ns 30%
Figure 1 Single pulse waveform when 500 is loaded
5.6.4 Test equipment
GB4717--93
Variable pulse
Repetition period (depends on the transient pulse electric bed) The number of pulses is determined by the frequency
Figure 2 Group of transient pulse waveforms
Transient generator: output transient pulse voltage 1000V+10%, 2000V+10%, pulse frequency 5kHz±20%, 2.5kHz±20%, output impedance 500, output 15ms transient pulse voltage every 300ms, polarity is positive and negative. Its electrical schematic is shown in Figure 3. The coupling/decoupling network used in the test is shown in Figures 4 and 5. Figure 3 Electrical schematic diagram of electrical transient pulse generator
U-high voltage power supply; R-charging resistor, Ce-energy storage capacitor, R. -Pulse shaping resistor; R—fire-proof matching resistor Ca DC capacitor
High-voltage coaxial
Connecting terminal
5.7 Power supply transient test
5.7.1 Purpose
Filter
Decoupling part
GB 4717-93
Ferrite
Signal of transient pulse from the door
Ce=33nF
Coupling part
Figure 4 Coupling/decoupling network a for AC power line test
Coupling board
Insulating support
The grounding plate surface is at least
Im2 and each side is 0.1m longer than the coupling
board
Figure 5 Coupling/decoupling network for other external connecting line tests to check the ability of the fire alarm controller to resist power supply transient interference. 5.7.2 Requirements
5.7.2.1 During the test, the sample shall not send out fire alarms and irreversible fault signals. 5.7.2.2 After the test, the performance of the sample shall meet the requirements of 5.3.2. 5.7.3 Methods
Reference ground terminal
Dimension unit: mm
High-voltage coaxial
Connection terminal
According to the requirements of the normal monitoring state, connect the sample to the equivalent load and connect the sample to the power transient test device so that the sample is in the normal visual state first.
Turn on the test device and make the main power supply of the sample continuously switch on and off 500 times according to the fixed procedure of "power on (9s)-power off (1s)\, and observe and record the sound and light alarm signals of the sample.1 Purpose
Filter
Decoupling part
GB 4717-93
Ferrite
Signal of transient pulse
Ce=33nF
Coupling part
Figure 4 Coupling/decoupling network for AC power line test a
Coupling board
Insulating support
The grounding plate surface is at least
Im2 and each side is 0.1m longer than the coupling
board
Figure 5 Coupling/decoupling network for other external connection line test Check the ability of fire alarm controller to resist power supply transient interference. 5.7.2 Requirements
5.7.2.1 During the test, the sample should not send out fire alarm and irreversible fault signal. 5.7.2.2 After the test, the performance of the sample should meet the requirements of 5.3.2. 5.7.3 Method
Reference ground terminal
Dimension unit: mm
High-voltage coaxial
Connection terminal
According to the requirements of normal monitoring state, connect the sample to the equivalent load and connect the sample to the power transient test device, so that the sample is in the normal visual state first.
Turn on the test device, and make the main power supply of the sample continuously turn on and off 500 times according to the fixed procedure of "power on (9s)-power off (1s)\, and observe and record the sound and light alarm signals of the sample.1 Purpose
Filter
Decoupling part
GB 4717-93
Ferrite
Signal of transient pulse
Ce=33nF
Coupling part
Figure 4 Coupling/decoupling network for AC power line test a
Coupling board
Insulating support
The grounding plate surface is at least
Im2 and each side is 0.1m longer than the coupling
board
Figure 5 Coupling/decoupling network for other external connection line test Check the ability of fire alarm controller to resist power supply transient interference. 5.7.2 Requirements
5.7.2.1 During the test, the sample should not send out fire alarm and irreversible fault
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