1 Scope
This part of GB/T 20042 provides the minimum requirements for safety and performance of proton exchange membrane fuel cell stacks (including direct alcohol fuel cell stacks),and the requirements for type inspection, routine inspection items, test methods, and signs and specification documents.
This part is applicable to proton exchange membrane fuel cell stacks (including direct alcohol fuel cell stacks) (hereinafter referred to as "fuel cell stacks").
This part deals with conditions that can yield hazards to persons and damage outside the fuel cell stacks only. Protection against damage to the fuel cell stack internals is not addressed in this part, provided it does not lead to hazards outside the module.
This section does not include storage devices for fuels and oxidizers, as well as fuel and oxidant delivery processes and delivery devices.
If there is a better material or a new structure, and it can pass the inspections specified in this part and meet the relevant requirements, it can also be considered to be in accordance with this part.
2 Normative references
The following normative documents contain provisions which, through reference in this part, constitute provisions of this part. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this part. However, parties to agreements based on this part are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies.
GB/T 2423.10 Environmental testing for electric and electronic products - Part 2: Test methods Test Fc and guidance: Vibration (Sinusoidal) (GB/T 2423.10-2008, IEC 60068-2-6: 1995, IDT)
GB/T 2423.55 Environmental testing for electric and electronic products - Part 2 : Test methods - Test Eh: hammer tests (GB/T 2423.55-2006, IEC 60068-2-75：1997, IDT)
GB/T 3512 Rubber, vulcanized or thermoplastic -Accelerated ageing and heat resistance tests - Air-oven method (GB/T 3512-2001，eqv ISO 188: 1998)
GB 3836 (all parts) Electrical apparatus for explosive atmosphere (IEC 60079 all parts)
GB 4208 Degrees of protection provided by enclosure(IP code) (GB 4208-2008，IEC 60529: 2001, IDT)
GB 4943 Safety of information technology equipment (GB 4943-2001，IEC 60950-1: 1999, IDT)
GB/T 5095.8 Electromechanical components for electronic equipment-Basic testing procedures and measuring methods - Part 8: Connector tests(mechanical) and mechanical tests on contacts and terminations (GB/T 5095.8—1997 IEC 60512-8: 1993, IDT)
GB/T 5169 Fire hazard testing for electric and electronic products (IEC 60695)
GB/T 5563 Rubber and plastics hoses and hose assemblies - Hydrostatic testing (GB/T 5563-2006，ISO 1402: 1994, IDT)
GB/T 7826 Analysis techniques for system reliability; Procedure for failure mode and effects analysis(FMEA) (GB/T 7826-1987，idt IEC 60812: 1985)
GB/T 7829 Procedure for fault tree analysis (GB/T 829-1987，neq IEC 60056)
GB/T 15329.1 Rubber hoses and hose assemblies-Textile-reinforced hydraulic types-Specification - Part 1: Oil-based fluid applications (GB/T 15329.1-2003，ISO 4079-1: 2001, MOD)
GB/T 18290 (all parts) Solderless connections ((idt IEC 60352 all parts)
GB/T 20042.1 Proton exchange membrane fuel cell-Terminology
IEC 61508 (all parts) Functional safety of electrical/electronic/programmable electronic safety-related systems
ISO 37 rubber, vulcanized or thermoplastic - determination of tensile stress-strain properties
ISO 1307 Rubber and plastics hoses for general-purpose in industrial applications - Bore diameters and tolerances, and tolerances on length
ISO 4672 Rubber and plastics hoses - Sub-ambient temperature flexibility tests
EN 50178 Electronic equipment for use in power installations
3 Terms and definitions
For the purpose of this part, the terms defined in GB/T 2900.18, GB 3836.1, GB 4943 and GB/T 20042.1 apply.
4 Requirements
Foreword i
Introduction ii
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements
4.1 Service conditions
4.2 General safety strategy
4.3 Design requirements
5 Type inspection
5.1 General
5.2 Gas leakage test
5.3 Normal operation test
5.4 Allowable working pressure test
5.5 Pressure test of cooling system
5.6 Blow-by test
5.7 Impact and vibration resistance test
5.8 Electrical overload test
5.9 Dielectric strength test
5.10 Differential pressure test
5.11 Gas leakage test (repeat)
5.12 Normal operation test (repeat)
5.13 Concentration test of inflammable gas
5.14 Freeze/thaw cycle test
6 Routine inspection
6.1 Gas-tightness test
6.2 Dielectric strength test
7 Inspection rules
7.1 General requirements
7.2 Type inspection
7.3 Requirements of routine inspection
8 Marking and description
8.1 General requirements
8.2 Nameplate
8.3 Connector marking
8.4 Warning marking
8.5 Technical document for users
Annex A (Informative) Preparation method for product model
