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IEC 61000-4-12 Ed. 3.0 b:2017

Electromagnetic Compatibility (EMC) - Part 4-12: Testing and measurement techniques - Ring wave immunity test

IEC 61000-4-12:2017 relates to the immunity requirements and test methods for electrical and electronic equipment, under operational conditions, to ring waves occurring in low-voltage power, control and signal lines supplied by public and non-public networks.
 The object of this document is to establish a common reference for evaluating the immunity of electrical and electronic equipment when subjected to ring waves. The test method documented in this part of IEC 61000 describes a consistent method to assess the immunity of an equipment or system against a defined phenomenon.
 It has the status of a basic EMC publication in accordance with IEC Guide 107.
 This edition includes the following significant technical changes with respect to the previous edition:
 a) addition of a mathematical modelling of ring wave waveform;
 b) new Annex B on selection of generators and test levels;
 c) new Annex C on explanatory notes;
 d) new Annex D on measurement uncertainty;
 e) addition of high speed CDN;
 f) addition of a calibration procedure for CDN.

International Electrotechnical Commission [iec]

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