IEC-60099-6 Complete Document History
Surge arresters - Part 6: Surge arresters containing both series and parallel gapped structures - System voltage of 52 kV and less

Complete Current Edition:
   EDITION 2.0 - Part 6: Surge arresters containing both series and parallel gapped structures - May 1, 2019

Obsolete Revision Information:
   EDITION 1.0 - RATED 52 KV & LESS - Aug. 1, 2002