GB/T 36288-2018Fuel cell electric vehicles—Safety requirement of fuel cell stack (English PDF)
燃料电池电动汽车 燃料电池堆安全要求
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
June 7, 2018
Implementation date
January 1, 2019
Scope
GB/T 36288-2018 is the English-translated version of 燃料电池电动汽车 燃料电池堆安全要求.
GB/T 36288-2018 sets the safety requirements for the fuel cell stack of fuel cell electric vehicles, covering hydrogen safety, electrical safety and mechanical structure.
It applies to proton exchange membrane stacks for vehicles and deals only with hazards to people and to the outside of the stack, not with protection of its interior.
The requirements cover mechanical shock, airtightness checked by the pressure drop method, insulation of the positive and negative electrodes with coolant filled, protection of persons against electric shock and a grounding point when the output voltage exceeds 60 V. Matching test methods describe the shock test along the X, Y and Z axes, the airtightness test with a helium-nitrogen mixture and the electrical checks, plus warning marks and the product manual. It was issued on 7 June 2018 and has applied since 1 January 2019.
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Document preview — GB/T 36288-2018
National Standard of the People's Republic of China
- ICS
- 27.070
- Classification
- K 82
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- Foreword3
- 1 Scope4
- 2 Normative references4
- 3 Terms and definitions4
- 4 General5
- 5 Requirements5
- 5.1 Safety requirement of mechanical shock5
- 5.2 Safety requirement of airtightness6
- 5.3 Electrical safety requirements6
- 6 Test methods6
- 6.1 Mechanical shock6
- 6.2 Airtightness6
- 6.3 Electrical safety7
- 7 Warning mark7
- 8 Product manual7
1 Scope
This Standard specifies the safety requirements for fuel cell stack for fuel cell electric vehicles in terms of hydrogen safety, electrical safety, and mechanical structure, etc.
This Standard applies to the proton exchange membrane fuel cell stack for vehicles. This Standard only deals with hazards to the outside of the human body and fuel cell stacks, and does not involve protection of the interior of the fuel cell stack, assuming that such internal damage does not pose a hazard to the outside of the fuel cell.
2 Normative references
The following documents are indispensable for the application of this document.
For the dated references, only the versions with the dates indicated are applicable to this document. For the undated references, the latest version (including all the amendments) are applicable to this document.
GB/T 18384.1 Electrically propelled road vehicles - Safety specifications - Part 1. On-board rechargeable energy storage system (REESS)
GB/T 18384.3 Electrically propelled road vehicles - Safety specifications - Part 3. Protection of persons against electric shock
GB/T 20042.2-2008 Proton exchange membrane fuel cell - General technical specification of fuel cell stacks
GB/T 24548 Fuel cell electric vehicles - Terminology
GB/T 28816 Fuel cell - Terminology
3 Terms and definitions
What defined in GB/T 24548 and GB/T 28816 and the following terms and definitions are applicable to this document.
3.1 Fuel cell stack for vehicle
5 Requirements
5.2 Safety requirement of airtightness
USE pressure drop method to test the airtightness of fuel cell stack. The result shall not be lower than 85% of the initial pressure.
5.3 Electrical safety requirements
5.3.1 Requirement of insulation property
When the fuel cell stack is filled with coolant and the coolant is in a cold cycle state, the ground insulation of positive and negative electrodes shall not be lower than 100 ohm/V.
5.3.2 Requirement for protection of persons against electric shock
The requirement for protection of persons against electric shock of fuel cell stack shall comply with the relevant provisions of GB/T 18384.3.
5.3.3 Requirement of ground protection
When the output voltage of fuel cell stack is higher than 60 V, the fuel cell stack needs to have a grounding point. The resistance between the grounding point and all bare metals shall be less than 0.1 ohm.
6 Test methods
6.1 Mechanical shock
After the fuel cell stack is installed and fixed, in 3 axial directions. X direction, Y direction, and Z direction, PERFORM shock test with a shock acceleration of 5.0 g. The mechanical shock pulse is a half sinusoidal waveform and lasts for 15 ms, once in each direction.
Note: The X direction is the vehicle's heading direction. The Y direction is the lateral direction. The Z direction is the vertical direction.
6.2 Airtightness
The fuel cell stack is in a cold state. CLOSE the hydrogen exhaust port, air exhaust port, and coolant outlet of the fuel cell stack; and at the same time, ADD helium-nitrogen mixed gas to the hydrogen flow channel, air flow channel, and coolant flow channel. The helium concentration shall not be less than 10%.
The pressure shall be set at the normal working pressure (gauge pressure).
After the pressure is stabilized, the inlet valve is closed; and the pressure is maintained for 20 min. […]
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
Normative references
- GB/T 18384.3[Including 2017-XG1 Modification] Electrically propelled road vehicles -- Safety specifications -- Part 3: Protection of persons against electric shock
- GB/T 20042.2-2008Proton exchange membrane fuel cell—Part 2: General technical specification of fuel cell stacks
- GB/T 24548Fuel cell electric vehicles - Terminology
- GB/T 28816Fuel cell--Terminology
GB/T 18384.1
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Related Standards
GB/T 18384.3-2015 — [Including 2017-XG1 Modification] Electrically propelled road vehicles -- Safety specifications -- Part 3: Protection of persons against electric shock
GB/T 24548-2009 — Fuel cell electric vehicles - Terminology
GB/T 28816-2020 — Fuel cell--Terminology
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