You can access the IEC 60099-5 standard through the following link:
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The current version, , replaces the 2013 edition. It incorporates technical revisions that align selection practices with the new classification system introduced in IEC 60099-4:2014 . Key Technical Features iec 600995 pdf link
. An overview of the standard, including the table of contents and scope, is available in the technical preview provided by iTeh Standards IEC 60099-5:2018 19 Jan 2018 —