1 Basic in EMC and Power Quality - schaffner.com

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2 Basic in EMC / EMI and Power Quality Basics in EMC and Power Quality I Introduction5 1 Sources of electromagnetic signals 5 1.1 Natural and technical sources of electromagnetic signals 5 1.2 Definition of noise 5 1.2.1 Frequency ranges 5 1.2.2 Differential-mode noise 6 1.2.3 Common-mode noise 6 1.3 Noise propagation 6 1.3.1 Coupling methods 6 1.3.2 Radiation 6

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