DS DS/EN 60099-5/A1
DS DSEN 60099-5A1 2000-JUN-28 Surge arresters - Part 5 Selecton and applcaton recommendatons
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This part of IEC 60099 provides recommendations for the selection and application of surge arresters to be used in three-phase systems with nominal voltages above 1 kV. It applies to non-linear resistor type gapped surge arresters as defined in IEC 60099-1 and to gapless metal-oxide surge arresters as defined in IEC 60099-4.