GB/T 38954-2020 English PDF (GBT38954-2020)

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GB/T 38954-2020: Hydrogen fuel cell power system for unmanned aerial vehicles
GB/T 38954-2020
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 27.070
K 82
Hydrogen fuel cell power system for unmanned aerial
vehicles
ISSUED ON: JUNE 02, 2020
IMPLEMENTED ON: DECEMBER 01, 2020
Issued by: State Administration for Market Regulation;
Standardization Administration of PRC.
Table of Contents
Foreword ... 4 
1 Scope ... 5 
2 Normative references ... 5 
3 Terms and definitions ... 6 
4 General requirements ... 8 
4.1 General ... 8 
4.2 General safety requirements ... 10 
4.3 Appearance and structure ... 11 
4.4 Other general technical requirements ... 11 
5 Technical requirements ... 12 
5.1 Start-up time ... 12 
5.2 Time to reach rated power ... 12 
5.3 Rated output power ... 12 
5.4 Power overload rate ... 12 
5.5 Output voltage range ... 12 
5.6 Power efficiency ... 12 
5.7 Startup/shutdown method ... 13 
5.8 Shutdown time... 13 
5.9 Continuous operation time ... 13 
5.10 Noise ... 13 
5.11 Vibration resistance ... 13 
5.12 Electromagnetic compatibility limits ... 13 
5.13 Data transmission... 14 
5.14 Hydrogen supply flow ... 14 
5.15 Fuel concentration in cabin ... 14 
5.16 Limitation of fuel concentration in exhaust gas ... 14 
5.17 Degree of protection of cabin ... 14 
5.18 Service life ... 14 
5.19 Hydrogen leakage rate ... 15 
5.20 Alarming function and monitoring function ... 15 
6 Test method ... 16 
6.1 Test preparation ... 16 
6.2 Test of start-up time ... 16 
6.3 Test of time to reach rated power ... 17 
6.4 Test of rated output power ... 17 
6.5 Test of power overload rate ... 17 
6.6 Test of output voltage range ... 17 
6.7 Electric efficiency test ... 17 
6.8 Test of startup/shutdown mode ... 18 
6.9 Test of shutdown time ... 18 
6.10 Test of continuous operation time ... 18 
6.11 Noise test ... 18 
6.12 Vibration resistance test ... 19 
6.13 Test of electromagnetic compatibility limit ... 19 
6.14 Data transmission test ... 20 
6.15 Hydrogen flow test... 20 
6.16 Test of fuel concentration in cabin ... 20 
6.17 Fuel concentration test in exhaust gas ... 21 
6.18 Cabin protection level test ... 21 
6.19 Service life test ... 21 
6.20 Hydrogen leakage rate test ... 21 
6.21 Test of alarming and monitoring function ... 23 
7 Marking, packaging, transportation ... 23 
7.1 Marking ... 23 
7.2 Packaging ... 24 
7.3 Documentation ... 24 
Appendix A (Informative) Hydrogen cylinder requirements ... 25 
Appendix B (Informative) Typical life test method ... 26 
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard was proposed by China Electrical Equipment Industry
Association.
This standard shall be under the jurisdiction of the National Fuel Cell and Flow
Battery Standardization Technical Committee (SAC/TC 342).
Drafting organizations of this standard: Xinyan Hydrogen Energy Technology
Co., Ltd., Shouhang Guoyi (Wuhan) Technology Co., Ltd., Beijing Institute of
Electrical Technology and Economics of Mechanical Industry, Dalian Institute of
Chemical Physics of Chinese Academy of Sciences, Xinyuan Power Co., Ltd.,
Wuhan University of Technology University, Shanghai Shenli Technology Co.,
Ltd., Aerospace New Long March Electric Vehicle Technology Co., Ltd.,
Shanghai Panye Hydrogen Energy Technology Co., Ltd., China Quality
Certification Center, Wuhan Zhongyu Power System Technology Co., Ltd.,
Dongguan Zhongchuang New Energy Technology Co., Ltd., Beijing Shangdian
Technology Co., Ltd., Shanghai Institute of Quality Supervision and Inspection
Technology, Wuxi City Product Quality Supervision and Inspection Institute,
Guangdong Hezhide Energy Technology Co., Ltd., Beijing Yihuatong
Technology Co., Ltd., Shanghai Hengjin Power Technology Co., Ltd., Shanghai
Boxuan Energy Technology Co., Ltd., Zhejiang Gaocheng Green Energy
Technology Co., Ltd.
The main drafters of this standard: Qi Zhigang, Zhang Liang, Pan Mu, Yu
Hongmei, Zhou Bin, Xing Danmin, Lu Chenyu, Jin Yinshi, Dong Hui, Wang
Gang, Li Songli, Chen Yao, Huang Ping, Zhao Feng, Chen Wei, Xu Weiqiang,
Liu Ran, Hu Lei, Tian Binglun, Hou Xiangli.
Hydrogen fuel cell power system for unmanned aerial
vehicles
1 Scope
This standard specifies the general requirements, technical requirements, test
methods, marking, packaging and transportation requirements for hydrogen
fuel cell power systems for unmanned aerial vehicles.
This standard applies to fuel cell power systems that use compressed hydrogen
as fuel to provide power and non-powered electricity for unmanned aerial
vehicles which have an unloaded mass not exceeding 116 kg and a maximum
take-off mass not exceeding 150 kg.
2 Normative references
The following documents are essential to the application of this document. For
the dated documents, only the versions with the dates indicated are applicable
to this document; for the undated documents, only the latest version (including
all the amendments) are applicable to this standard.
GB/T 191 Packaging - Pictorial marking for handling of goods
GB/T 2893.2-2008 Graphical symbols - Safety colors and safety signs - Part
2: Design principles for product safety labels
GB/T 4208-2017 Degrees of protection provided by enclosure (IP code)
GB/T 4980-2003 Determination of sound level for noise emitted by
displacement compressors
GB/T 15329-2019 Rubber hoses and hose assemblies - Textile-reinforced
hydraulic types for oil-based or water-based fluids - Specification
GB/T 17626.2-2018 Electromagnetic compatibility - Testing and
measurement techniques - Electrostatic discharge immunity test
GB/T 17626.3-2016 Electromagnetic compatibility - Testing and
measurement techniques - Radiated, radio-frequency, electromagnetic field
immunity test
GB/T 20042.1 Proton exchange membrane fuel cell - Part 1: Terminology
GB/T 20438.1 Functional safety of electrical/electronic/programmable
electronic safety-related systems - Part 1: General requirements
GB/T 20972.1 Petroleum and natural gas industries - Material for use in
H2S-containing environments in oil and gas production - Part 1: General
principles for selection of cracking resistant materials
GB/T 28816 Fuel cell - Terminology
GB/T 36288-2018 Fuel cell electric vehicles - Safety requirement of fuel cell
stack
YD/T 122 Nameplates of products for posts and telecommunications
industry
3 Terms and definitions
The terms and definitions as defined in GB/T 20042.1 and GB/T 28816 as well
as the following terms and definitions apply to this document.
3.1
Unmanned aerial vehicle
An unmanned aerial vehicle controlled and managed by a remote-control
system (including remote control or autonomous flight).
3.2
Fuel cell power system for unmanned aerial vehicle
A fuel cell power system that provides power and non-power electricity for
unmanned aerial vehicles.
Note: In this standard, fuel cell power systems include fuel cell systems
(including auxiliary energy storage modules) and fuel storage modules and
fuel supply modules (both collectively referred to as fuel systems) that
provide hydrogen to it.
3.3
Start-up time
The duration of the fuel cell power system from the moment of power-on (the
moment when the manual power-on starts from the starting action) to the
moment when there is net electric power output.
3.4
Shut-down time
The length of time...