EVS-EN 50341-1:2013

This European Standard applies to new overhead electric lines with nominal system voltages  exceeding AC 1 kV and with rated frequencies below 100 Hz. The extent of the application of this standard by each country in respect of existing overhead lines is  subject to the requirements of the National Normative Aspects (NNA) applicable to that country. The specific definition as to the meaning and extent of a “new overhead line” is to be identified by each National Committee (NC) within their own NNA. At the least, it shall mean a totally new line between two points, A and B.