BS EN 50341-2-19:2015被认为是一种全新的架空电力线路，具有标称 A点和B点之间的电压超过1 kV AC。现有架空线路的新支线应视为新的架空线路 但连接支架除外，其具体要求应在 项目规范。本标准在改建、继电保护和扩建方面的适用范围 现有架空线路的长度应在项目规范中确定。同时 项目规范应确定应采用的先前国家标准 以及在多大程度上用于相关项目。交叉引用:CSN EN 1991-1-4:2007CSN EN 1991-1-4:2007/NA:2013CSN 33 2040:1993CSN 33 2160:1993CSN 33 2165:2014CSN 34 1530:2010CSN 730810:2009CSN 73 6133:2010EN 13501-1:2007EN 13501-1:2007+A1:2009EN 13501-5:2005EN 13501-5:2005+A1: 2009EN 13501-5:2005/AC:2008EN 5052CSN EN 61936-1:2011EN 62305-3EN ISO 14688-1:2002EN ISO 14688-1:2002+A1:2013EN ISO 14688-2:2004EN ISO 14688-2:2004+A1:2013EN ISO 14689-1:2003EN 206CSN 73 1001:1988CSN 73 3050:1987CIGRE TB 207:2002IGRE TB 273:2005BS取代了EN 50423-3-3:2005和BS EN 50341-3:2001，这些在购买时仍然是最新的修订版本购买本文件。

BS EN 50341-2-19:2015 is considered a brand new electric overhead line with nominal voltage exceeding 1 kV AC, between the points A and B.The new branch line of the existing overhead line shall be considered a new overhead line except for a junction support for which the specific requirements shall be defined in the Project Specification.The extent of application of this standard in respect of reconstruction, relaying and extension of existing overhead lines shall be determined in the Project Specification. Simultaneously, the Project Specification shall determine, which of the previous national standards shall be used and to what extent they shall be used for the project in question.Cross References:CSN EN 1991-1-4:2007CSN EN 1991-1-4:2007/NA:2013CSN 33 2040:1993CSN 33 2160:1993CSN 33 2165:2014CSN 34 1530:2010CSN 730810:2009CSN 73 6133:2010EN 13501-1:2007EN 13501-1:2007+A1:2009EN 13501-5:2005EN 13501-5:2005+A1:2009EN 13501-5:2005/AC:2008EN 50522CSN EN 61936-1:2011EN 62305-3EN ISO 14688-1:2002EN ISO 14688-1:2002+A1:2013EN ISO 14688-2:2004EN ISO 14688-2:2004+A1:2013EN ISO 14689-1:2003EN 206CSN 73 1001:1988CSN 73 3050:1987CIGRE TB 207:2002CIGRE TB 273:2005Replaces BS EN 50423-3:2005 and BS EN 50341-3:2001 which remain currentAll current amendments available at time of purchase are included with the purchase of this document.