本欧洲标准适用于标称系统电压超过AC 1 kV且额定频率低于100 Hz的新架空电线。本欧洲标准也适用于标称系统电压超过交流1 kV（包括交流45 kV）且额定频率低于100 Hz的有盖导线架空线路和架空绝缘电缆系统。规定了仅适用于该电压范围的附加要求和简化。带有绝缘导线的架空线路的设计和施工，其内部和外部间隙可能小于标准中的规定，不包括超过45 kV的线路。本标准的其他要求可能适用，必要时应咨询NNA。本欧洲标准适用于光学地线（OPGW）和光学导体（OPCON）。

This European Standard applies to new overhead electric lines with nominal system voltages exceeing AC 1 kV and with rated freqencies below 100 Hz. this European Standard also applies to covered conductor overhead lines and overhead insulated cable systems with nominal system voltage exceeing AC 1 kV up to and including AC 45 kV and with rated frequencies below 100 Hz.Additional requirements and simplifications are specified that apply only for this voltage range. Design and construction of overhead lines with insulated conductors, where internal and external clearances can be smaller than specified in the standard, are not included for lines exceeing 45 kV. Other requirements of the Standard may be applicable, and where necessary NNAs should be consulted. This European Standard is applicable for optical Ground Wires (OPGWs) and optical Conductors (OPCONs).