Standard [CURRENT]
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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.
Corrected edition: Corrected document: Customers who purchased the previous document DIN EN 60099-4:2015-07 received free of charge