EN 61558-2-9:2003 Safety of power transformers@ power supply units and similar products Part 2-9: Particular requirements for transformers for class III handlamps for tungsten filament lamps
2011EN 61558-2-9:2011 Safety of transformers, reactors, power supply units and combinations thereof - Part 2-9: Particular requirements and tests for transformers and power supply units for class III handlamps for tungsten filament lamps
2003EN 61558-2-9:2003 Safety of power transformers@ power supply units and similar products Part 2-9: Particular requirements for transformers for class III handlamps for tungsten filament lamps