GB16808-2008 Combustible Gas Alarm Controller Reliability Laboratory

Combustible gas alarm controller test third-party test report
This standard specifies the classification, general requirements and test methods of combustible gas alarm controllers. It is applicable to combustible gas alarm controllers installed and used in general industrial and civil buildings. It is also suitable for controllers with special performance installed in other environments
Source function test
The purpose of the test is to test the controller’s adaptability to AC power supply voltage fluctuations and loads and the capacity of the power supply
When the sample is under normal monitoring, cut off the main power supply of the sample so that the sample is powered by the backup power supply, then restore the main power supply, check and record the conversion of the main and backup power supplies of the sample, the status indication and the main power supply. Overcurrent protection
Insulation resistance test
The purpose of the test is to test the insulation performance of the controller
The sample requires that the insulation resistance value between the external live terminal and the chassis should not be less than megohms, the sample The insulation resistance value between the power input terminal and the chassis should not be less than the DC voltage applied to the megohm sample, and continuously measure the insulation resistance value.
Gas strength test
The purpose is to test the electrical strength of the controller.
The electrical strength test between the power plug and the casing of the sample should be able to withstand an AC voltage with a frequency of 0.0 and an effective voltage of 0.001 and a duration of 10 minutes. During the test, the sample should not suffer from breakdown.
Frequency electromagnetic field radiation immunity test
The purpose of the test is to test the working adaptability of the controller under radio frequency electromagnetic field radiation environmental conditions.
Field strength requirements/rate range
Conducted disturbance immunity test induced by frequency fields
The purpose of the test is to test the adaptability of the controller to conducted disturbance induced by radio frequency fields.
Test frequency range
Electric discharge immunity test
The purpose of the test is to test the adaptability of the controller to electrostatic discharge caused by contact with static persons and objects.
Contact discharge, air discharge
Fast transient pulse group immunity test
The purpose of the test is mainly to test the controller's ability to resist electrical fast transient pulse group interference.
For the pulse voltage applied to the power line, the pulse voltage applied to other connecting lines.
Surge Immunity Test
The purpose of the test is mainly to test the controller's adaptability to voltage transient interference generated by nearby lightning or power switching of power supply systems and low-voltage networks, including large capacitive load switching. sex.
Surge impulse voltage refers to the pulse voltage applied to the power line line to line, the voltage applied to the line to the ground, and the pulse voltage applied to other connecting lines.
Source transient test
The purpose of the test is mainly to test the controller's ability to resist interference from power supply transients.
Voltage temporary interruption, short-term interruption and voltage change immunity test
The purpose of the test is mainly to test the controller's anti-interference ability under voltage temporary interruption, short-term interruption and voltage change.
Warm operation test
The main purpose of the test is to test the adaptability of the controller to work under low temperature conditions.
The test temperature is maintained for hours and maintained for minutes when it rises to 10°C.
Constant humidity and heat operation test degree
Keep the humidity at 90% for hours.
Dynamic sinusoidal operation test
Carry out scanning cycles on three mutually perpendicular axes in sequence, in the frequency range, with acceleration and octave scanning rate.
Dynamic sine endurance test
Carry out scanning cycles on three mutually perpendicular axes in sequence, in the frequency range, with acceleration and octave scanning rate.
Crash test
The purpose of the test is mainly to test the reliability of the surface components of the controller when subjected to a collision.
Test requirements: During the test, the sample should be kept in a normal monitoring state. After the test, the sample should not be mechanically damaged and the fasteners should not be loose
The test method affects every vulnerable surface of the test sample. Components (such as indicators, displays, etc.) apply secondary energy as collisions. Care should be taken when conducting the test to ensure that the results of the previous set of collisions will not have an impact on the results of subsequent sets of collisions. When it is considered that there may be an impact, a new test piece should be taken regardless of the defects found and placed in the same position. Rerun the crash test. During the test, observe and record the working status of the sample.