
INTRODUCTION
The equipments are feed directly from the public network (380/220Vca) or through the transformers, feeders etc... The disturbs generated by the equipments can go-out from the feed lines and through the public network to influence others equipments in another offices or buildings; it speaks about disturbs conducted.
It can happen that the disturbs leak from the equipments under the form electromagnetic wave and like these can add others equipments directly to irradiation or also to pairing through its cables; it speaks about thedisturbs radiates.
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