GB/T 21437.3-2012: Road vehicles -- Electrical disturbances from conduction and coupling -- Part 3: Electrical transient transmission by capacitive and inductive coupling via lines other than supply lines

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Scope

This Part of GB/T 21437 establishes a bench top test for the evaluation of the immunity
of devices under test (DUTs) to transient transmission by coupling via lines other than
supply lines. The test transient pulses simulate both fast and slow transient
disturbances, such as those caused by the switching of inductive loads and relay
contact bounce.
Three test methods are described in this Part.
- Capacitive coupling clamp (CCC) method;
- Direct capacitive coupling (DCC) method;
- Inductive coupling clamp (ICC) method.
Note. The applicability of the three test methods is shown in Table 1.
Only one test method need be selected for slow transients and only one method need be
selected for fast transients.
This Part applies to road vehicles fitted with nominal 12 V, 24 V or 42 V electrical systems.
For transient immunity, Annex B provides recommended test severity levels in line with the
functional performance status classification (FPSC1) principle described in GB/T 21437-1.

Basic Data

Standard ID	GB/T 21437.3-2012 (GB/T21437.3-2012)
Description (Translated English)	Road vehicles -- Electrical disturbances from conduction and coupling -- Part 3: Electrical transient transmission by capacitive and inductive coupling via lines other than supply lines
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	T35
Classification of International Standard	43.040.10
Word Count Estimation	26,263
Quoted Standard	GB/T 21437.1-2008; GB/T 21437.2-2008; ISO 11452-4
Adopted Standard	ISO 7637-3-2007, MOD
Regulation (derived from)	National Standards Bulletin No. 41 of 2012
Issuing agency(ies)	General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary	This standard specifies a test method for to evaluate the device under test (DUTs) coupled to the non- electric power line transients fired robustness. Tests simulate fast transient pulse electric power transient and slow transient harassment harassment,