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Standards [CURRENT]

DIN EN 60099-4 ; VDE 0675-4:2025-06
Surge arresters - Part 4: Metal-oxide surge arresters without gaps for a.c. systems (IEC 60099-4:2014); German version EN 60099-4:2014

Title (German)

Überspannungsableiter - Teil 4: Metalloxidableiter ohne Funkenstrecken für Wechselspannungsnetze (IEC 60099-4:2014); Deutsche Fassung EN 60099-4:2014

Overview

This part of IEC 60099 applies to non-linear metal-oxide resistor type surge arresters without spark gaps designed to limit voltage surges on a.c. power circuits with Us above 1 kV. It presents the minimum criteria for the requirements and testing of gapless metal-oxide surge arresters that are applied to a.c. power systems with Us above 1 kV.