EMC requirements in European network codes

Low frequency EMC is an essential part for the satisfactory operation of electric power systems. Many low frequency phenomena are part of the power quality context. Requirements on equipment connected to electrical networks are important to achieve electromagnetic compatibility. Such requirements on networks and connected equipment should be coordinated. An area of recent and increasing interest is conducted disturbances in the range of 2 to 150 kHz. This frequency range is used for communication for smart grid applications such as smart metering. At the same time, an increasing number of equipment being connected are emitting disturbances in this frequency range and higher. However, also slower voltage and power frequency variations are important in order to achieve electromagnetic compatibility.