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GB/T 38924.4-2020: Environmental test methods for civil small and light unmanned aircraft system - Part 4: Temperature and altitude test
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GB/T 38924.4-2020: Environmental test methods for civil small and light unmanned aircraft system - Part 4: Temperature and altitude test

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Environmental test methods for civil small and light unmanned aircraft system--Part 4.Temperature and altitude test ICS 49.020 V35 National Standards of People's Republic of China Environmental test method for civil light and small UAV system Part 4.Temperature and altitude test 2020-07-21 released 2021-02-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Table of contents

Preface Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 1 4 Test condition 2 4.1 Temperature and altitude test conditions 2 4.2 Device under test 3 5 Test equipment and instruments 3 6 Test process 3 6.1 Preparation before test 3 6.2 Pretreatment 3 6.3 Inspection before test 3 6.4 Test Step 4 6.5 Recovery 4 6.6 Inspection after test 4 7 Test interruption and resumption 4 7.1 Under-test interruption 4 7.2 Test interruption 4 8 Evaluation of test results 4 9 Test report 5

Foreword

GB/T 38924 "Civil Light and Small UAV System Environmental Test Method" is divided into the following parts. ---Part 1.General Provisions; ---Part 2.Low temperature test; ---Part 3.High temperature test; ---Part 4.Temperature and altitude test; ---Part 5.Impact test; ---Part 6.Vibration test; ---Part 7.Damp heat test; ---Part 8.Salt spray test; ---Part 9.Water resistance test; ---Part 10.Sand and dust test; This part is Part 4 of GB/T 38924. This section was drafted in accordance with the rules given in GB/T 1.1-2009. This part was proposed and managed by the National Aircraft Standardization Technical Committee (SAC/TC435). Drafting organizations of this section. China Institute of Aviation Technology, Liaoning Zhuanglong UAV Technology Co., Ltd., Northwestern Polytechnical University, Shenzhen DJI Innovation Technology Co., Ltd., Xi'an Aisheng Technology Group Corporation. The main drafters of this section. Sun Ruifeng, Chen Mingfei, Cai Liangxu, Li Minwei, He Zhikai, Zhang Li, Shu Zhenjie, Zhang Xiaolin, Hu Yonghong, Yang Yang, Zhong Zhiyong, Jia Jia. Environmental test method for civil light and small UAV system Part 4.Temperature and altitude test

1 Scope

This part of GB/T 38924 specifies the civil light and small unmanned aerial vehicle (take-off weight between 0.25kg and 150kg) system (including flying Test conditions, test equipment and instruments, test process, test interruption and recovery, evaluation of test results for temperature and altitude test And test report. This section applies to civil light and small UAV systems that may experience the combined effects of temperature and height during use. In this way, the ability of civil light and small UAV systems to withstand the combined effects of temperature and height is determined.

2 Normative references

The following documents are indispensable for the application of this document. For dated reference documents, only the dated version applies to this article Pieces. For undated references, the latest version (including all amendments) applies to this document. GB/T 2423.25-2008 Environmental testing of electrical and electronic products Part 2.Test method Test Z/AM. Low temperature/low pressure Comprehensive test GB/T 2423.26-2008 Environmental testing of electrical and electronic products Part 2.Test method Test Z/AM. High temperature/low air pressure Comprehensive test GB/T 38924.1-2020 Environmental test method for civil light and small unmanned aerial vehicle systems Part 1.General

3 Terms and definitions

The following terms and definitions defined in GB/T 38924.1-2020 apply to this document. For ease of use, the following is repeated Some terms and definitions in GB/T 38924.1-2020. 3.1 Operatinglowtemperature The minimum temperature at which the equipment is normally exposed and required to work. 3.2 Operatinghightemperature The highest temperature at which the equipment is normally exposed and required to work. 3.3 Altitude The absolute elevation above mean sea level. Note. During the test, the environmental pressure relative to sea level can be characterized by exposure to it. [GB/T 38924.1-2020, definition 3.6] ...