TABLE OF CONTENTS This chapter describes how to apply the latest Electromagnetic Compatibility (EMC) Standards to Transmission and Distribution Equipment.
The subject of EMC comes under EMC Directive 89/336 EEC for all European Union countries. This is being replaced by a new version, 2004/108/EC which is similar in many respects. In the USA the Federal Communication Commission (FCC) standards apply, elsewhere European or IEC standards are commonly used. Both sets of standards are similar and many of the European standards are identical to the corresponding IEC standards.
In brief, the EU EMC directive requires that all electrical and electronic equipments constructed for use in any EU country must ensure:
The electromagnetic disturbance generated by the apparatus does not exceed a level allowing radio and telecommunication s equipment and other apparatus to operate as intended (i.e. to limit the electromagnetic noise from the equipment).
The apparatus has an adequate level of intrinsic immunity to electromagnetic disturbance in the intended environment enabling it to operate satisfactorily (i.e. to ensure adequate screening and noise immunity in the operational environment).
The effect of conducted electromagnetic disturbances on power systems is discussed separately in Chapters 24 and 25 (Power quality).
Many good theoretical and descriptive books related to EMC already exist (see References 1 to 9). This chapter describes the application of the theory to real practical transmission and distribution examples and typical measurements that may be made on site.
Tables 20.1 20.3 list current EMC national and international standards which are relevant to...
