Standard No.:	GB/T 28046.4-2011
English Name:	Road vehicles—Environmental conditions and testing for electrical and electronic equipment—Part 4:Climatic loads
Chinese Name:	道路车辆 电气及电子设备的环境条件和试验 第4部分：气候负荷
Chinese Classification:	T36    Electronic and electrical equipment
Professional Classification:	GB    National Standard
ICS Classification:	43.040.10 43.040.10    Electrical and electronic equipment 43.040.10
Source Content Issued by:	AQSIQ; SAC
Issued on:	2011-10-31
Implemented on:	2012-2-1
Status:	valid
Target Language:	English
File Format:	PDF
Word Count:	10000 words
Translation Price(USD):	140.0
Delivery:	via email in 1 business day

1 Scope This part describes the potential climatic environmental loads and specifies tests and requirements recommended for electrical and electronic systems/components at specific mounting location on/in the vehicle. This part is applicable to electrical and electronic systems/components for road vehicles. 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 2423.1 Environmental testing for electric and electronic products - Part 2: Tests methods - Tests A: Cold (GB/T 2423.1-2008, IEC 60068-2-1: 2007, IDT) GB/T 2423.2 Environmental testing for electric and electronic products - Part 2: Tests methods - Tests B: Dry heat (GB/T 2423.2-2008, IEC 60068-2-2: 2007, IDT) GB/T 2422.3 Environmental testing for electric and electronic products - Part 2: Tests methods - Test Cab: Damp heat, steady state (GB/T 2423.3-2006, IEC 60068-2-78: 2001, IDT) GB/T 2423.4 Environmental testing for electric and electronic products - Part 2: Tests methods - 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: Tests methods - Test Ka: Salt mist (GB/T 2423.17-2008, IEC 60068-2-11: 1981, IDT) GB/T 2423.18 Environmental testing for electric and electronic products - Part 2: Tests methods - Test Kb: Salt mist, cyclic (sodium chloride solution) (GB/T 2423.18-2000, IEC 60068-2-52: 1996, IDT) GB/T 2423.22 Environmental testing for electric and electronic products - Part 2: Tests methods - Test N: Change of temperature (GB/T 2423.22-2002, IEC 60068-2-14: 1984, IDT) GB/T 2423.34 Environmental testing for electric and electronic products - Part 2: Tests methods - Test Z/AD: Composite temperature/humidity cyclic test (GB/T 2423.34-2005, IEC 60068-2-38: 1974, IDT) GB/T 2423.51 Environmental testing for electric and electronic products - Part 2: Tests methods - Test Ke: Flowing mixed gas corrosion test (GB/T 2423.51-2000, IEC 60068-2-60: 1995, 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 28046.2 Road vehicles - Environmental conditions and testing for electrical and electronic equipment - Part 2: Electrical loads (GB/T 28046.2-2011, ISO 16750-2: 2006, MOD) ISO 20653 Road vehicles - Degrees of protection (IP-Code) - Protection of electrical equipment against foreign objects, water and access 3 Terms and definitions For the purposes of this document, the terms and definitions given in GB/T 28046.1 apply.

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Operating temperature ranges 5 Tests and requirements 6 Codes for climatic loads 7 Protection against dust and water Annex A (Informative) Usual tests and requirements for equipment depending on the mounting location