| Edition | Publication Date | Key Changes | |---------|----------------|--------------| | | 2009 | First release. Replaced IEC 60439. Introduced design verification by test/calculation. | | Edition 1.1 | 2011 | Consolidated with Amendment 1 (2010). Clarified temperature rise testing. | | Edition 2.0 | 2020 | Major revision. Added requirements for assemblies with electronic circuits, new clearances for DC, updated short-circuit testing. | | Edition 2.1 | 2021 | Consolidated with Amendment 1 (2021). Minor corrections to Annex E. |
Official IEC PDFs are protected documents with specific usage restrictions. According to the standard's terms: iec 61439-1 standard pdf
Verifies the integrity of the insulation under normal operational overvoltages. | Edition | Publication Date | Key Changes
The three methods for temperature rise verification are: new clearances for DC