Low-voltage surge protective devices – Part 12: Surge protective devices connected to low-voltage power systems – Selection and application principles
|Publication Date:||1 May 2020|
|ICS Code (Substations. Surge arresters):||29.240.10|
This part of IEC 61643 describes the principles for the selection, operation, location and coordination of SPDs to be connected to 50/60 Hz AC power circuits, and equipment rated up to 1 000 V RMS.
These devices contain at least one non-linear component and are intended to limit surge voltages and divert surge currents.
NOTE 1 Additional requirements for special applications are also applicable, If required.
NOTE 2 IEC 60364 and IEC 62305-4 are also applicable.
NOTE 3 This document deal only with SPDs and not with surge protection components (SPC) integrated inside equipment.