Standard No.:	GB/T 21437.2-2008
English Name:	Road vehicles - Electrical disturbances from conduction and coupling - Part 2: Electrical transient conduction along supply lines only
Chinese Name:	道路车辆 由传导和耦合引起的电骚扰 第2部分：沿电源线的电瞬态传导
Chinese Classification:	T35    Electronic/electrical equipment and instruments for vehicle in general
Professional Classification:	GB    National Standard
ICS Classification:	43.040.10 43.040.10    Electrical and electronic equipment 43.040.10
Issued by:	AQSIQ
Issued on:	2008-02-15
Implemented on:	2008-9-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	10500 words
Price(USD):	140.0
Delivery:	via email in 1 business day

1 Scope This part specifies bench tests for testing the compatibility to conducted electrical transients of equipment installed on passenger cars and light commercial vehicles fitted with a 12 V electrical system or commercial vehicles fitted with a 24 V electrical system — for both injection and the measurement of transients. Failure mode severity classification for immunity to transients is also given in this part. This part is applicable to these types of road vehicle, independent of the propulsion system (e.g. spark ignition or diesel engine, or electric motor). 2 Normative References The following normative document contains provisions which, through reference in this text, constitute provisions of this part of GB/T 21437. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part are encouraged to investigate the possibility of applying the most recent edition of the normative document indicated below. For undated references, the latest edition of the normative document referred to applies. GB/T 21437.1 Road Vehicles — Electrical Disturbances from Conduction and Coupling — Part 1: Definitions and General Considerations (GB/T 21437.1-2008, ISO 7637-1:2002, IDT); ISO 8854:1988 Road Vehicles — Alternators with Regulators — Test Methods and General Requirements 3 Terms and Definitions For the purpose of this document, the terms and definitions given in GB/T 21437.1 apply. 4 Test Procedure

Foreword II 1 Scope 2 Normative References 3 Terms and Definitions 4 Test Procedure 5 Test Instrument Description and Specifications Annex A (Normative) Failure Mode Severity Classification Annex B (Informative) General Technique for Improving Device Electromagnetic Compatibility Annex C (Normative) Transient Emissions Evaluation — Voltage Waveform Annex D (Normative) Test Pulse Generator Verification Procedure Annex E (Informative) Determination of Pulse Generator’s Energy Capability Annex F (Informative) Origin of Transients in Road Vehicle Electrical Systems

*GB/T 21437.1-2008 Road vehicles - Electrical distrubances from conduction and coupling -Part 1: Definitions and general considerations