The latest version of this standard is IEC 60099-5:2018 "Surge arresters - Part 5: Selection and application recommendations"
: Industry experts like Volker Hinrichsen released updated "Seminar Editions" in late 2024/early 2025 to help users navigate the transition between old line discharge classes and new charge-based classifications. International standard IEC 60099-5:2018 - Afnor EDITIONS iec 600995 pdf upd
The standard recommends that the MCOV be at least 5% higher than the highest continuous voltage of the power system. The latest version of this standard is IEC
This article will clarify the confusion, explain the likely intended standard (IEC 61000-4-30 or IEC 62586), and provide a roadmap for obtaining the correct, up-to-date PDF documentation for power quality and measurement standards. : It now fully integrates application guidance for
: It now fully integrates application guidance for diverse technologies, including: Gapless metal-oxide arresters (IEC 60099-4). Gapped structures (rated 52 kV and less, IEC 60099-6). Externally Gapped Line Arresters (EGLA) for transmission and distribution lines (IEC 60099-8). Diagnostic Guidance
Surge arresters with series and parallel gapped structures rated at 52 kV or less (IEC 60099-6).
The current authoritative standard for the selection and application of surge arresters is (Edition 3.0). This technical revision significantly updates the previous 2013 version to align with the new surge arrester classification system introduced in IEC 60099-4:2014 . Overview of IEC 60099-5:2018