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

Scope

This part of GB/T 21437 establishes a bench test method for evaluating the anti-interference performance of devices under test (DUTs) against electrical transient emissions coupled to non-power supply lines. The test transient pulses simulate fast electrical transient disturbances and slow electrical transient disturbances, such as those caused by inductive load switching and relay contact bouncing.
This part provides three test methods:
—— Capacitive Coupling Clamp (CCC) method;
—— Direct Capacitor Coupling (DCC) method;
—— Inductive Coupling Clamp (ICC) method.
Note: The applicability of the three test methods is shown in Table 1.
Only one method is required for slow electrical transient tests and fast electrical transient tests.
This part is applicable to road vehicles with a nominal voltage of 12 V, 24 V, or 42 V electrical systems.
For transient immunity, Appendix B provides recommended test severity levels, consistent with the Functional Performance State Classification (FPSC1) principle described in GB/T 21437.1.

Development Information

Superseded by the following standards

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