IEC 61643-11:2011适用于雷电或其他瞬态过电压间接和直接影响的浪涌保护装置。这些设备被包装成可连接到50/60 Hz交流电源电路，设备额定值高达1000 V r.m.s.性能特征、标准测试方法和额定值已建立。这些设备至少包含一个非线性组件，旨在限制浪涌电压和分流浪涌电流。IEC 61643-11第一版取消并取代了2005年发布的IEC 61643-1第二版。与IEC 61643-1第二版相关的主要变化是测试程序和测试顺序的完全重组和改进。注:提请国家委员会注意，设备制造商和测试机构在发布新的、修订的或修订的IEC出版物后可能需要一段过渡期，以便根据新的要求生产产品，并为进行新的或修订的测试做好准备。 委员会建议，本出版物的内容应在出版之日起不早于12个月内通过，供国家实施。同时，仍可通过联系当地IEC成员全国委员会或IEC中央办公室订购上一版本。

IEC 61643-11:2011 is applicable to devices for surge protection against indirect and direct effects of lightning or other transient overvoltages. These devices are packaged to be connected to 50/60 Hz a.c. power circuits, and equipment rated up to 1 000 V r.m.s. Performance characteristics, standard methods for testing and ratings are established. These devices contain at least one nonlinear component and are intended to limit surge voltages and divert surge currents. This first edition of IEC 61643-11 cancels and replaces the second edition of IEC 61643-1 published in 2005. The main changes with respect of the second edition of IEC 61643-1 are the complete restructuring and improvement of the test procedures and test sequences. NOTE: The attention of National Committees is drawn to the fact that equipment manufacturers and testing organizations may need a transitional period following publication of a new, amended or revised IEC publication in which to make products in accordance with the new requirements and to equip themselves for conducting new or revised tests. It is the recommendation of the committee that the content of this publication be adopted for national implementation not earlier than 12 months from the date of publication. In the meantime, the previous edition can still be ordered by contacting your local IEC member National Committee or the IEC Central Office.