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REMINDER: The New Version of the Norms of Transformers, EN 61558:2009 will Replace EN 61558:1997 on 1 July 2012
REMINDER: The New Version of the Norms of Transformers, EN 61558:2009 will Replace EN 61558:1997 on 1 July 2012
In 2012, the new version of the Norms of Transformers, EN 61558:2009 will replace the old one, EN 61558:1997. The DOW (Date of Withdrawal) for the old version is 1 July 2012.
IMPORTANT: These standard modifications will become compulsory from the date of withdrawal and the new versions will apply.
In 2012, the new version of the Norms of Transformers, EN 61558:2009 will replace the old one, EN 61558:1997. The DOW (Date of Withdrawal) for the old version is 1 July 2012. IMPORTANT: These standard modifications will become compulsory from the date of withdrawal and the new versions will apply.
Standards: Old version: EN 61558-2-6:1997 New version: EN 61558-2-6:2009 Summary of Differences between the Two Versions: Clause 8 Marking and other information – sub clause 8.11 1. The symbol of Class III construction: old one:  new one: 2. The symbol of indoor use only is determined:  Clause 9 Protection against contact with hazardous live parts New requirement by new version: For transformers with a primary supply plug, the pins of the plug shall not be hazardous live measured 1s after withdrawal of the plug. For transformers without a primary supply plug, the terminals provided for connecting the transformer to the supply source shall not be hazardous live measured 5s after disconnection of the supply source. Clause 18 Insulation resistance, dielectric strength and leakage current New version: Adds sub clause 18.5: Touch current and protective earth conductor current; the touch current and protective earth conductor current should be measured. Affects and solutions: - The valid standard checked should be EN 61558-2-6:2009 and EN 61558-1:2005+A1:2009. - The history test report or license checked by the old version can be updated to the new one by examining relevant additional clauses, like construction check and temperature rise, etc. Contact Information Free Hot Line in China: 800 988 1236(Fix) or 400 889 1236(Mob) Email: contact@cn.bureauveritas.com Shanghai Tel. +86-21-61957000 Ningbo Tel. +86-574-87971036 Yong Kang Tel. +86-579-87119082 Wenzhou Tel. +86-577-61787077 Xiamen Tel. +86-592-2964266 Keep Up-To-Date with Bureau Veritas Knowledge ProductsBulletins are just one of the many knowledge-based tools offered by the Knowledge Products Portal
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