1 Low temperature working test according to GB T 24231-2008 was conducted in the method specified in Test AB. Under the condition that the temperature is (0 3), the annunciator is energized and stabilized for 2 hours, the main technical indicators are tested, and its appearance is checked.
2 High temperature work test according to GB T 24232-2008 The method specified in the test BB was conducted. Under the condition that the temperature is (40 2), the annunciator is energized and stabilized for 2h, the main technical indicators are tested, and its appearance is checked.
3 Low temperature storage test according to GB T 24231-2008 was conducted in the method specified in Test AB. At a temperature of (-40 3), the duration is 16 h. In the test, the annunciator is not packaged, not energized, and does not carry out intermediate detection. After the trial, recover to 51.1 Under the specified conditions keep for 2h, test the main technical indicators, and check their appearance.
4 High temperature storage test according to GB T 24232-2008 The method specified in the test BB was conducted. At a temperature of (60 2), the duration is 16 h. In the test, the annunciator is not packaged, not energized, and does not carry out intermediate detection. After the trial, recover to 51.1 Under the specified conditions keep for 2h, test the main technical indicators, and check their appearance.
5 Alternating damp heat test by GB T 24234-2008 was conducted in the method specified in the test db. Under the conditions of (40 2) and (93 3)% relative humidity, the duration is 12 days, and the annunciator is not packaged, energized, and not tested in the middle. After the test, the insulation resistance and dielectric strength test were carried out, and the test was carried out, at 51.1 Keep it for 2h under the specified conditions, then test the main technical indicators, and check their appearance.
6 Vibration test by GB T 242310-2019 was conducted in the method specified in the test FC. Severity level: sweep frequency range (10 150) Hz, acceleration amplitude of 50m s 2, sweep frequency cycle 5 times, the signal is not packaged, energized, and not detected in the middle during the test. Test the main technical indicators after the test and check their appearance.
7 Impact test by GB T 24235-2019 was conducted in the method specified in the test EA. Severity level: peak acceleration of 500 m s 2, pulse duration of (11 1) ms, continuous impact 3 times in each direction of 3 axes (18 times in total), the annunciator is not packed, energized, and no intermediate detection is carried out in the test. Test the main technical indicators after the test and check their appearance.
8 Transport Test Press MT 209-1990 in 45.2 Conducted in the prescribed manner. Severity level: frequency 4Hz, acceleration 30ms, test time 2h. 10q lb 027-2023 Signaler packaging, no power, no intermediate detection in the test. Test the main technical indicators after the test and check their appearance.