Road vehicles - Electrical disturbances caused by conduction and coupling - Part 3: Electrical transient emission range through capacitive and inductive coupling of wires other than power lines - This part of GB/T 21437 establishes a bench test method to evaluate the anti-interference performance of DUTs against electrical transient emissions coupled to non power lines. Experimental transient pulse simulation of fast and slow electrical transient disturbances, such as transient disturbances caused by inductive load switching, relay contact jumping, etc. This section provides three test methods: capacitive coupling clamp (CCC) method; direct capacitor coupling (DCC) method; and inductive coupling clamp (ICC) method. Note. The applicability of the three test methods is shown in Table I. Only one method needs to be selected for slow electrical transient testing and fast electrical transient testing. This section applies to road vehicles with a nominal voltage of 12 V, 24 V, or 42 V electrical system. For transient immunity, Appendix B provides recommended test severity levels, which are consistent with the Functional Characteristic State Classification (FPSC) principle described in GB/T 21437.1. The following normative references are essential for the application of this document. For dated references, only the dated version applies to this document. For undated references, the latest version (including all modification orders) applies to this document. GB/T 21437.1-2008 Road Vehicles: Electrical Disturbances Caused by Conduction and Coupling, Part 1: Definitions and General Description (ISO 7637-1:2002, 1DT) GB/T 21437.2-2008 Road Vehicles: Electrical Disturbances Caused by Conduction and Coupling, Part 2: Electrical Transient Conduction Along Power Lines (ISO 7637-2:2004, 1DT) ISO 11452-4: Road Vehicles, Component Test Methods for Electromagnetic Disturbances Caused by Narrowband Radiated Electromagnetic Energy, Part 4: High Current Injection [Road vehicles - Component test methods for electrical disturbances from Narrowband radiated electromagnetic energy - Part 4: Bulk current injection (BCD)]
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