ChinaAutoRegs｜GB/T 21437.3-2012 英文版/English/翻译/道路车辆 由传导和耦合引起的电骚扰 第3部分: 除电源线外的导线通过容性和感性藕合的电瞬态发射
Road Vehicles – Electrical Disturbances from Conduction and Coupling – Part 3: Electrical Transient Transmission by Capacitive and Inductive Coupling via Lines Other Than Supply Lines
1 SCOPE
This Part of GB/T 21437 establishes a bench test method 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:
the capacitive coupling clamp (CCC) method;
the direct capacitive coupling (DCC) method;
the 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 12V, 24V or 42V electrical systems.
For transient immunity, Annex B provides the recommended test severity levels in line with the functional performance status classification (FPSC ) principle described in GB/T 21437.1.
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 21437.1-2008 Road Vehicles – Electrical Disturbances from Conduction and Coupling – Part 1: Definitions and General Considerations (ISO 7637-1:2002, IDT)
GB/T 21437.2-2008 Road vehicles – Electrical disturbances from conduction and coupling – Part 2: Electrical transient conduction along supply lines only (ISO 7637-2:2004, IDT)
ISO 11452-4 Road vehicles – Component test methods for electrical disturbances from narrowband radiated electromagnetic energy – Part 4: Bulk current injection (BCI)
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