GB/T 42284.4-2022 English PDF (GBT42284.4-2022)

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GB/T 42284.4-2022: Road vehicles -- Environmental conditions and testing for electrical and electronic equipment for drive system of electric propulsion vehicles -- Part 4: Climatic loads
GB/T 42284.4-2022
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 43.040.10
CCS T 36
Road vehicles - Environmental conditions and testing for
electrical and electronic equipment for drive system of
electric propulsion vehicles - Part 4: Climatic loads
(ISO 19453-4:2018, MOD)
ISSUED ON: DECEMBER 30, 2022
IMPLEMENTED ON: JULY 01, 2023
Issued by: State Administration for Market Regulation;
Standardization Administration of the People’s Republic of China.
Table of Contents
Foreword ... 4
Introduction ... 7
1 Scope ... 9
2 Normative references ... 9
3 Terms and definitions ... 10
4 Operating temperature ranges ... 10
5 Tests and requirements ... 12
5.1 Tests at constant temperature ... 12
5.2 Temperature cycling tests ... 13
5.3 Cold water shock tests ... 17
5.4 Salt spray tests ... 20
5.5 Humid heat, cyclic test – Dewing test ... 26
5.6 Damp heat, steady state test ... 28
5.7 Condensation test ... 28
5.8 Corrosion test with flow of mixed gas ... 31
5.9 Solar radiation test ... 32
5.10 Dust test ... 32
5.11 Atmospheric pressure test ... 33
6 Code for climatic loads ... 35
7 Protection against dust and water ... 36
Annex A (Informative) Usual tests and requirements for equipment depending on the
mounting location ... 37
Annex B (Informative) Background information to determine the number of cycles of
the salt spray combined test ... 38
B.1 General ... 38
B.2 Comparison analysis among the salt spray tests ... 38
B.3 Background information for the number of cycles of the salt spray combined test .. 39
B.4 Severity according to the mounting location (frequency and amount of water exposure)
... 41
Annex C (Informative) Insulation tests ... 42
C.1 General ... 42
C.2 Withstand voltage ... 42
C.3 Insulation resistance ... 43
Bibliography ... 45
Foreword
This document was drafted in accordance with the rules provided in GB/T 1.1-2020
Directives for Standardization - Part 1: Rules for the Structure and Drafting of
Standardizing Documents.
This document is Part 4 of GB/T 42284 Road vehicles - Environmental conditions and
testing for electrical and electronic equipment for drive system of electric propulsion
vehicles. The following parts have been issued for GB/T 42284:
-- Part 1: General;
-- Part 3: Mechanical loads;
-- Part 4: Climatic loads;
-- Part 5: Chemical loads.
This document adopts ISO 19453-4:2018 Road vehicles - Environmental conditions
and testing for electrical and electronic equipment for drive system of electric
propulsion vehicles - Part 4: Climatic loads by modification.
Compared with ISO 19453-4:2018, this document makes the following structural
adjustments:
-- Delete Clause 8 of ISO 19453-4:2018.
The technical differences between this document and ISO 19453-4:2018, and the
reasons are as follows:
-- Remove the ISO and IEC database addresses for standardized maintenance terms,
since the terms involved in this document have nothing to do with the ISO and
IEC databases for standardized maintenance terms;
-- Replace IEC 60068-2-1 (see 5.1.1.1.2) with the normative reference GB/T 2423.1,
between which the degree of consistency is identical, to adapt to the technical
conditions in China and improve operability;
-- Replace IEC 60068-2-2 (see 5.1.2.1.2, 5.1.2.2.2) with the normative reference
GB/T 2423.2, between which the degree of consistency is identical, to adapt to
the technical conditions in China and improve operability;
-- Replace IEC 60068-2-78 (see 5.6.2) with the normative reference GB/T 2423.3,
between which the degree of consistency is identical, to adapt to the technical
conditions in China and improve operability;
-- Replace IEC 60068-2-30 (see 5.5.2) with the normative reference GB/T 2423.4,
between which the degree of consistency is identical, to adapt to the technical
conditions in China and improve operability;
-- Replace IEC 60068-2-11 (see 5.4.2.2) with the normative reference GB/T 2423.17,
between which the degree of consistency is identical, to adapt to the technical
conditions in China and improve operability;
-- Replace IEC 60068-2-52 (see 5.4.3.2.1) with the normative reference GB/T
2423.18, between which the degree of consistency is identical, to adapt to the
technical conditions in China and improve operability;
-- Replace IEC 60068-2-14 (see 5.2.1.2) with the normative reference GB/T 2423.22,
between which the degree of consistency is identical, to adapt to the technical
conditions in China and improve operability;
-- Replace IEC 60068-2-60 (see 5.8.2) with the normative reference GB/T 2423.51,
between which the degree of consistency is identical, to adapt to the technical
conditions in China and improve operability;
-- Replace IEC 60664-1 (see 5.11.2) with the normative reference GB/T 16935.1,
between which the degree of consistency is identical, to adapt to the technical
conditions in China and improve operability;
-- Replace ISO 16750-1 (see Clause 3) with the normative reference GB/T 28046.1;
the degree of consistency between the two documents is modified, to adapt to the
technical conditions in China and improve operability;
-- Replace ISO 20653 (see 5.10.2) with the normative reference GB/T30038,
between which the degree of consistency is modified, to adapt to the technical
conditions in China and improve operability;
-- Replace ISO 19453-1 (see Clause 3) with the normative reference GB/T 42284.1,
between which the degree of consistency is modified, to adapt to the technical
conditions in China and improve operability;
-- Add the applicable conditions for cold water shock tests (see 5.3.1);
-- Adjust the substitution relationship between the salt spray combined test and the
other two salt spray tests in 5.4.3.1 and Table 9 in Clause 6. For unsealed
systems/components that will cause electrical failure due to salt water entering
the DUT, the salt spray combined test can only be used to substitute the test of
5.4.1.
This following editorial modifications are also made to this document:
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. This
document describes the potential environmental stresses and specifies requirements
recommended for different stress levels on/in the vehicle. This document contains
definitions, mounting location, operating mode and other general requirements.
This document applies to electric propulsion systems and components with maximum
working voltages according to voltage class B; this document does not apply to high
voltage battery packs (e.g., for traction) and systems and components inside.
Like all other parts of the GB/T 42284 series, 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 documents are referred to in the text in such a way that some or all of
their content constitutes requirements of this document. For dated references, only ...