Explanation of the purpose and how to execute the new mechanical tests specified in 60099-4 Ed. 2.1 of 2006-07

Introduction to the long-standing energy rating issue of arresters resolved with the publication of IEEE C62.11 -2012 and IEC 60099-4 Ed 3.0
See AF 033 for udate on energy handling.

The final energy tests adopted by IEC for arresters is explained in detail.
Reference ArresterFacts 033.1 - Calculating Charge in a Surge using Excel found in the Tools and Guides section.

Overview of new energy handling capability test for surge arresters specified in IEEE C62.11-2012

Revision 2020 to IEEE C62.11 revises the required tests to contain more realistic requirements while at the same time harmonize it with the equivalent IEC standard 60099-4. ArresterFacts 050 is an outline of the revisions in a manner that makes them more understandable and easier to implement by all stakeholders.