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2. Nature and classification of disturbances
2.1 Disturbance coupling
Disturbances produced by or affecting equipment can have multiple origins and complex propagation modes:
by conduction on cables connected to the equipment ;
by direct radiation from chassis, boards or internal wiring;
by different types of coupling of the two previous modes.
For a better understanding of possible couplings, we have defined in figure the different types of access possible for a given device.
European standards define access as a specific interface between the device concerned and the external electromagnetic environment.
They...
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Nature and classification of disturbances
Measuring disturbances produced by a device
Bibliography
Norms and Standards
European standards
AFNOR Association française de normalisation
- Transmission de signaux sur les réseaux électriques basse tension dans la bande de fréquences de 3 kHz à 148,5 kHz. Partie 1 : règles générales, bandes de fréquences et perturbations électromagnétiques (indice de classement: C 90-201-1) - NF EN 50065-1 - 05-02
- Compatibilité électromagnétique. Norme générique émission....
Regulations
Directive 2004/108/EC of the European Parliament and of the Council of December 15, 2004 on the approximation of the laws of the Member States relating to electromagnetic compatibility and repealing Directive 89/336/EEC (OJ L of December 31, 2004) came into force in July 2007. It will definitively replace EMC Directive 89/336/EEC in July 2009.
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Organizations – Federations – Associations
American National Standards Institute (ANSI) http://www.ansi.org
American Society for Testing and Materials (ASTM) http://www.astm.org
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