低压浪涌保护装置.第11部分:两街道低压功率配电系统的浪涌保护装置.试验方法和要求

[中文适用范围]： 本部分 IEC 61643 适用于用于防护雷电或其他瞬态过电压的间接和直接影响的设备。这些设备封装后连接到 50/60 Hz 交流电路，额定电压高达 1000 V r.m.s。建立了性能特征、标准测试方法和额定值。这些设备包含至少一个非线性元件，旨在限制浪涌电压并分流浪涌电流。 [外文原描述]： 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.