《EN 61869-3:2011》Instrument transformers — Part 3: Additional requirements for inductive voltage transformers EN 61869-3:2011
《EN 61869-4:2014/AC:2014》Instrument transformers — Part 4: Additional requirements for combined transformers EN 61869-4:2014/AC:2014
《EN 61558-1:2005/A1:2009》Safety of power transformers, power supplies, reactors and similar products — Part 1: General requirements and tests EN 61558-1:2005/A1:2009
《EN 61869-1:2009》Instrument transformers. General requirements EN 61869-1:2009
《EN 61869-1:2009》Instrument transformers — Part 1: General requirements EN 61869-1:2009
《EN 61558-1》Safety of power transformers, power supplies, reactors and similar products - Part 1: General requirements and tests EN 61558-1
《EN IEC 61558-1 》Safety of transformers, reactors, power supply units and combinations thereof - Part 1: General requirements and tests EN IEC 61558-1
《EN 61558-1+A1+A11》Safety of power transformers, power supplies, reactors and similar products - Part 1: General requirements and tests EN 61558-1+A1+A11
《EN 61869-2:2012》Instrument transformers - Part 2: Additional requirements for current transformers (IEC 61869-2:2012) EN 61869-2:2012
《EN 61869-5:2011/AC:2015》Instrument transformers — Part 5: Additional requirements for capacitor voltage transformers EN 61869-5:2011/AC:2015