Overview
ISO 11452-5:2002 is an international standard developed by the International Organization for Standardization (ISO) within the ISO 11452 series. This part of the standard specifies test methods for assessing the immunity of electronic components in road vehicles to electrical disturbances from narrowband radiated electromagnetic energy, using stripline techniques. The standard applies to passenger cars and commercial vehicles, irrespective of the propulsion system-this includes vehicles powered by spark-ignition engines, diesel engines, or electric motors.
The test procedures outlined in ISO 11452-5:2002 are vital for verifying that electronic equipment and their harnesses function reliably when exposed to continuous narrowband electromagnetic fields, supporting vehicle safety and operational integrity.
Key Topics
- Scope: Defines the assessment of electronic components’ immunity to electromagnetic disturbances using stripline testing, specifically targeting harnesses not exceeding one-third of the stripline’s height.
- Test Conditions: Covers essential parameters such as test temperature, supply voltage, frequency range (notably 10 kHz to 400 MHz), and severity levels, as guided by ISO 11452-1.
- Test Apparatus: Details the construction and configuration of the stripline, instrumentation, and set-up requirements to ensure accurate and repeatable results.
- Test Procedure: Outlines the development of a test plan, field calibration methods, and test report documentation to capture all relevant test data and ensure compliance.
- Device and Harness Positioning: Specifies configurations for exposing wiring harnesses or devices under test to the electromagnetic field, emphasizing proper grounding and installation techniques.
Applications
- Automotive Electronics Validation: Manufacturers and suppliers use this standard to ensure vehicle electronic components-including control units, sensors, and actuators-meet regulatory and safety requirements for electromagnetic compatibility (EMC).
- Design and Development Testing: Enables researchers and engineers to identify potential vulnerabilities in the design phase and implement robust electromagnetic shielding or filtering solutions for critical vehicle functions.
- Quality Assurance: Provides a consistent methodology for routine production sampling, supplier qualification, and verification of component compliance with international EMC standards.
- Regulatory Compliance: Supports automotive manufacturers in meeting market entry requirements and customer specifications for electromagnetic immunity.
By employing the stripline test method as specified in ISO 11452-5:2002, organizations can simulate realistic electromagnetic environments, ensuring that vehicle components maintain their functionality even under significant electromagnetic stress.
Related Standards
- ISO 11452-1: General and definitions – Outlines the overall approach, terminology, and definitions for immunity testing across the ISO 11452 series.
- ISO 11452-2: Absorber-lined shielded enclosure – Specifies test methods using absorber-lined enclosures.
- ISO 11452-3: Transverse electromagnetic mode (TEM) cell – Covers TEM cell testing approaches.
- ISO 11452-4: Bulk current injection (BCI) – Describes bulk current injection methods.
- ISO 11452-6: Parallel plate antenna – Details alternative antenna-based immunity testing.
- ISO 11452-7: Direct RF power injection – Specifies direct radio frequency power injection methods.
These related standards collectively address various approaches and environments for EMC immunity testing in road vehicles, providing comprehensive frameworks for automotive EMC validation.
Keywords: ISO 11452-5, stripline test, electromagnetic immunity, automotive EMC, electronic components testing, road vehicles, narrowband electromagnetic energy, harness testing, international standard, ISO automotive standards.
Open preview (PDF)Road vehicles — Component test methods for electrical disturbances from narrowband radiated electromagnetic energy — Part 5: Stripline