IEC 60099-4 Revised
IEC 60099-4:2004
Surge arresters - Part 4: Metal-oxide surge arresters without gaps for a.c. systems
Applies to non-linear metal-oxide resistor type surge arresters without spark gaps designed to limit voltage surges on a.c. power circuits.
CHF 400.-
A more recent version of this publication exists: IEC 60099-4:2014