QC/T 1175-2022 in English

Foreword
This document is drafted in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules of standardization documents".
The issuing body of this document does not assume the responsibility of identifying patents.
This document is proposed and attributed by the National Automotive Standardization Technical Committee (SAC/TC 114).
1 Scope
This document specifies the technical requirements, test methods and inspection rules of high-voltage contactors for electric vehicles.
This document applies to the main contactor rated DC operating voltage of 60V to 1500v electric vehicles with high-voltage contactors (hereinafter referred to as "contactors").
This document does not apply to AC contactors for electric vehicles.
2 Normative reference documents
The contents of the following documents constitute the essential provisions of this document through the normative references in the text. Among them, note the date of the reference documents, only the date of the corresponding version applies to this document: do not note the date of the reference documents, the latest version (including all the revision of the list) applies to this document.

GB/T 2423.56 Environmental testing Part 2: Test method test Fh: Broadband random vibration and guidelines
GB/T 2423.18-2012 Environmental test Part 2: Test method test Kb: Salt spray, alternating (sodium chloride solution)
GB/T 2423.34-2012 Electrical and electronic products environmental test Part 2: test method dry test Z-AD: temperature-humidity combination cycle test
GB/T 2900.18 Electrician terminology low-voltage electrical appliances
GB/T5169.11-2017 Electrical and electronic products fire hazard test Part 11: Scorching wire hot wire basic test method of finished products of scorching wire flammability test method (GWEPT)
GB/T 14048.1 Low-voltage switchgear and control equipment Part 1: General Provisions
GB/T 17626.4-2018 Electromagnetic compatibility test and measurement techniques electrical fast transient pulse group immunity test
GB/T 18655-2018 vehicles, ships and internal combustion engines radio harassment characteristics for the protection of on-board receivers limit values and measurement methods
GB/T19951 road vehicles Electrical / electronic components to the electrostatic discharge immunity test method
GB/T 21437.2-2008 road vehicles Electrical disturbances caused by conduction and coupling Part 2: Electrical transient conduction along the power line
GB/T 28046.3-2011 GB/T 28046.3-2011
GB/T 33014.2 Road vehicles Electrical and electronic components to narrowband radiation electromagnetic energy immunity test method Part 2: Electric wave darkroom method
GB/T 33014.4 Road vehicles Electrical and electronic components to narrowband radiation electromagnetic energy immunity test method Part 4: high current injection (BCI) method


3 Terms and definitions
GB/T 2900.18 and GB/T 14048.1 defined as well as the following terms and definitions apply to this document.
4 Symbols and abbreviations
The following symbols and abbreviations are applicable to this document.
5 Requirements
6Test methods
7 Inspection rules
7.1 Factory inspection
Factory inspection items and sampling quantities in accordance with Table 17.
Appendix A (informative appendix) contactor classification
Appendix B (informative appendix) contactor use guidelines
Bibliography

Contents
Foreword i
1 Scope
2 Normative references
3 Terms and definitions
4 Symbols and abbreviations
5 Requirements
6 Test methods
7 Inspection rules
Annex A (Informative) Classification of contactors
Annex B (Informative) Guidelines for the use of contactors
Bibliography