Road vehicles—Environmental conditions and testing for electrical and electronic equipment for drive system of electric propulsion vehicles—Part 4: Climatic loads
Road vehicles — Environmental conditions and testing for electrical and electronic equipment for drive system of electric propulsion vehicles — Part 4: Climatic loads
1 Scope
This document specifies requirements for the electric propulsion systems and components with maximum working voltages according to voltage class B. It describes the potential environmental stresses and specifies tests and requirements recommended for different stress levels on/in the vehicle. It contains definitions, mounting location, operating modes and other general requirements.
This document is applicable to the electric propulsion systems and components with maximum working voltages according to voltage class B; it does not apply to high voltage battery packs (e.g. for traction) and systems and components inside.
Like all other parts of GB/T 42284, this document is not intended to apply to environmental requirements or testing for:
— wiring harnesses, cables and electrical connectors;
— parts or assemblies inside an equipment, if not otherwise specified;
— system integration of equipment and system validation on vehicle level, if not otherwise specified in a test requirement.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.
GB/T 2421-2020 Environmental testing - General and guidance (IEC 60068-1:2013, IDT)
GB/T 2423.1 Environmental testing - Part 2: Test methods - Tests A: Cold (IEC 60068-2-1:2007, IDT)
GB/T 2423.2 Environmental testing - Part 2: Test methods - Tests B: Dry heat (GB/T 2423.2-2008, IEC 60068-2-2:2007, IDT)
GB/T 2423.3 Environmental testing - Part 2:Testing method - Test Cab: Damp heat, steady state (GB/T 2423.3-2016, IEC 60068-2-78:2012, IDT)
GB/T 2423.4 Environmental testing for electric and electronic products - Part 2: Test method - Test Db: Damp heat, cyclic (12h + 12h cycle) (GB/T 2423.4-2008, IEC 60068-2-30:2005, IDT)
GB/T 2423.17 Environmental testing for electric and electronic products - Part 2: Test method - Test Ka: Salt mist (GB/T 2423.17-2008, IEC 60068-2-11:1981, IDT)
GB/T 2423.18 Environmental testing - Part 2: Test methods - Test Kb: Salt mist, cyclic (sodium chloride solution) (GB/T 2423.18-2021, IEC 60068-2-52:2017, IDT)
GB/T 2423.22 Environmental testing - Part 2: Tests methods - Test N: Change of temperature (GB/T 2423.22-2012, IEC 60068-2-14:2009, IDT)
GB/T 2423.51 Environmental testing - Part 2: Test methods - Test Ke: Flowing mixed gas corrosion test (GB/T 2423.51-2020, IEC 60068-2-60:2015, IDT)
GB/T 16935.1 Insulation coordination for equipment within low-voltage systems - Part 1: Principles requirements and tests (GB/T 16935.1-2008, IEC 60664-1:2007, IDT)
GB/T 28046.1 Road vehicles - Environmental conditions and testing for electrical and electronic equipment - Part 1: General (GB/T 28046.1-2011, ISO 16750-1:2006, MOD)
GB/T 30038 Road vehicles - Degrees of electrical equipment protection (IP-Code) (GB/T 30038-2013, ISO 20653:2006, MOD)
GB/T 42284.1 Road vehicles - Environmental conditions and testing for electrical and electronic equipment for drive system of electric propulsion vehicles - Part 1: General (GB/T 42284.1-2022, ISO 19453-1:2018, MOD)
3 Terms and Definitions
For the purposes of this document, the terms and definitions given in GB/T 28046.1 and GB/T 42284.1 apply.
4 Operating temperature ranges
Table 1 defines the operating temperature ranges. Choose the applicable temperature range from Table 1 to be presented in the specifications of the device under test (DUT).
In the case of hot soak, choose from Table 2 the relative temperature increase ΔTHS and add it to the maximum temperature Tmax to have the absolute hot soak temperature (TmaxHS), i.e. Tmax + ΔTHS = TmaxHS, see 5.2.1.
The paint repair temperature (TmaxPR ) can be set to a higher value than the operating temperature. Specify this temperature in the specifications of the DUT.
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Table 1 Operating temperature ranges
Foreword II
Introduction V
1 Scope
2 Normative references
3 Terms and Definitions
4 Operating temperature ranges
5 Test and requirements
6 Code for climatic loads
7 Protection against dust and water
Annex A (Informative) Usual tests and requirements for equipment depending on the mounting location
Annex B (Informative) Background information to determine the number of cycles of the salt spray combined test
Annex C (Informative) Insulation tests
Bibliography
