DIN EN 60099-4 E:2013 Draft Document - Surge arresters - Part 4: Metal-oxide surge arresters without gaps for a.c. systems (IEC 37/406/CDV:2013); German version FprEN 60099-4:2013
2015DIN EN 60099-4:2015 Surge arresters - Part 4: Metal-oxide surge arresters without gaps for a.c. systems (IEC 60099-4:2014); German version EN 60099-4:2014
2010DIN EN 60099-4:2010 Surge arresters - Part 4: Metal-oxide surge arresters without gaps for a.c. systems (IEC 60099-4:2004, modified + A1:2006 + A2:2009); German version EN 60099-4:2004 + A1:2006 + A2:2009
2007DIN EN 60099-4:2007 Surge arresters - Part 4: Metal-oxide surge arresters without gaps for a.c. systems (IEC 60099-4:2004, modified + A1:2006); German version EN 60099-4:2004 + A1:2006