IEC 61643-1 Revised
IEC 61643-1:1998
Surge protective devices connected to low-voltage power distribution systems - Part 1: Performance requirements and testing methods
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. and d.c. power circuits, and equipment rated up to 1 000 V r.m.s or 1 500 V d.c. Performance characteristics, standard methods for testing, and ratings are established for these devices that contain at least one nonlinear component that is intended to limit surge voltages and divert surge currents.
CHFÂ 365.-