BS EN 62689-2:2017描述了运行期间的电气现象和电气系统行为 故障，根据最广泛分布的配电系统架构和故障 类型，定义故障通道指示器（FPI）的功能要求，以及 配电变电站单元（DSU）（包括其电流和/或电压传感器），包括:， 分别是一个设备或设备/设备组合和/或能够检测 并提供有关其定位的指示。 交叉引用:EN 62689-1（IEC 62689-1:2016）ASIEC 62689-1:2016EN 60044-8EN 61869-6（IEC 61869-6:2016）ASIEC 61869-4:2013 ED1EN 60870-5-101（IEC 60870-5-101:2003）ASEN 60870-5-104（IEC 60870-5-104:2006）ASIEC 61850-7-2:2010EN 60721-3-4:1995IEC 61850-7-3:2010IEC 60044-8:2002IEC 61869-1:2007ASEN 61850-7-3（IEC 61850-7-3-2010）ASIEC 60870-5-101:2003IEC 60870-5-104:2006EN 60044-7（IEC 60044-7-3-2010） 7:1999通过）EN 61869-1（IEC 61869-1:2007）ASIEC 61869-6:2016购买本文件时可获得的所有现行修订均包含在购买本文件中。

BS EN 62689-2:2017 describes electric phenomena and electric system behaviour during faults, according to the most widely diffused distribution system architecture and to fault typologies, to define the functional requirements for fault passage indicators (FPI) and distribution substation units (DSU) (including their current and/or voltage sensors), which are, respectively, a device or a device/combination of devices and/or of functions able to detect faults and provide indications about their localization.Cross References:EN 62689-1 (IEC 62689-1:2016) ASIEC 62689-1:2016EN 60044-8EN 61869-6 (IEC 61869-6:2016) ASIEC 61869-4:2013 ED1EN 60870-5-101 (IEC 60870-5-101:2003) ASEN 60870-5-104 (IEC 60870-5-104:2006)ASIEC 61850-7-2:2010EN 60721-3-4 Ed. 3.0IEC 60721-3-4:1995IEC 61850-7-3:2010IEC 60044-8:2002IEC 60044-7:1999IEC 61869-1:2007 Ed 1EN 61869-4 (IEC 61869-4:2013) ASEN 61850-7-2 (IEC 61850-7-2:2010) ASEN 61850-7-3 (IEC 61850-7-3:2010) ASIEC 60870-5-101:2003IEC 60870-5-104:2006EN 60044-7 (IEC 60044-7:1999 Adopted)EN 61869-1 (IEC 61869-1:2007) ASIEC 61869-6:2016All current amendments available at time of purchase are included with the purchase of this document.