BS EN 61557-9:2015规定了绝缘故障定位系统的要求 （IFLS）定位未接地交流系统中系统任何部分的绝缘故障 并将其与具有标称电流的直流电路连接的交流系统接地 交流电压高达1000 V，以及电压高达 1500 V直流电，与测量原理无关。IEC 60364-4-41和其他文献中描述了IT系统。一份报告的附加数据 应注意其他标准中设备的选择。 注:有关绝缘故障位置的更多信息，请参见以下标准: IEC 60364-4-41:2005，411.6和IEC 60364-5-53:2001，531.3。交叉引用:IEC 60068-2-1IEC 60068-2-2IEC 60068-2-6IEC 60068-2-27IEC 60364-7-710:2002IEC 6052IEC 60664IEC 60721-3-1IEC 60721-3-2IEC 60721-3-3IEC 61010-1:2010IEC 61010-2-030IEC 61010-031IEC 61010-2-032IEC 61326-2-2IEC 61326-2-2IEC 61326-2-4IEC 61557-1:2007IEC 61557-8CISPR 11EN 60068-2-60068-2-60068-2-2-6002-2-2-6002-2-2-2-60068-2016HD-61027: 3-3-3-3-3 3-3-3-3-6 6-616157-1-7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 7 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5 5-2:2011HD 60364-4-41:2007EN 60664-1EN 60664-3EN 60947-5-1:2004EN 60947-5-4:2003EN 61140EN 61810-2:2011所有现行修订购买本文件时提供的信息包括在内。

BS EN 61557-9:2015 specifies the requirements for the insulation fault location system (IFLS) which localizes insulation faults in any part of the system in unearthed IT a.c. systems and unearthed IT a.c. systems with galvanically connected d.c. circuits having nominal voltages up to 1 000 V a.c., as well as in unearthed IT d.c. systems with voltages up to 1 500 V d.c., independent of the measuring principle.IT systems are described in IEC 60364-4-41 amongst other literature. Additional data for a selection of devices in other standards should be noted.NOTE Further information on insulation fault location can be found in the following standards: IEC 60364-4-41:2005, 411.6, and IEC 60364-5-53:2001, 531.3.Cross References:IEC 60068-2-1IEC 60068-2-2IEC 60068-2-6IEC 60068-2-27IEC 60364-7-710:2002IEC 60529IEC 60664IEC 60721-3-1IEC 60721-3-2IEC 60721-3-3IEC 61010-1:2010IEC 61010-2-030IEC 61010-031IEC 61010-2-032IEC 61326-2-2IEC 61326-2-4IEC 61557-1:2007IEC 61557-8CISPR 11EN 60068-2-1EN 60068-2-2EN 60068-2-6EN 60068-2-27HD 60364-7-710:2012HD 60364-7-710:2012+AC:2013EN 60664EN 60721-3-1EN 60721-3-2EN 60721-3-3EN 61010-1:2010EN 61010-2-030EN 61010-2-032EN 61010-031EN 61326-2-2EN 61326-2-4EN 61557-1:2007EN 61557-8EN 55011IEC 60364-4-41:2005IEC 60364-5-53:2001IEC 60664-1IEC 60664-3IEC 60947-5-1:2003IEC 60947-5-4:2002IEC 61140IEC 61810-2:2011HD 60364-4-41:2007EN 60664-1EN 60664-3EN 60947-5-1:2004EN 60947-5-4:2003EN 61140EN 61810-2:2011All current amendments available at time of purchase are included with the purchase of this document.