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Hydrogen Technologies Standards form the basic framework for market ramp-up
More information
Climate change Standards and specifications support climate targets
More information
Smart Farming Standards and specifications are drivers for the digitalization of agriculture
More information

Standards [CURRENT]

NF C52-558-2-4 ; NF EN 61558-2-4:2009-07-01
Safety of transformers, reactors, power supply units and similar products for voltages up to 1 100 V - Part 2-4 : particular requirements and tests for isolating transformers and power supply units incorporating isolating transformers

Title (German)

Sicherheit von Transformatoren, Drosseln, Netzgeräten und dergleichen für Versorgungsspannungen bis 1 100 V - Teil 2-4 : Besondere Anforderungen und Prüfungen an Trenntransformatoren und Netzgeräte die Trenntransformatoren enthalten

Edition 2009-07-01

Original language French

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Hydrogen Technologies Standards form the basic framework for market ramp-up

Climate change Standards and specifications support climate targets

Smart Farming Standards and specifications are drivers for the digitalization of agriculture

NF C52-558-2-4 ; NF EN 61558-2-4:2009-07-01 Safety of transformers, reactors, power supply units and similar products for voltages up to 1 100 V - Part 2-4 : particular requirements and tests for isolating transformers and power supply units incorporating isolating transformers

Want to learn more?

NF C52-558-2-4 ; NF EN 61558-2-4:2009-07-01
Safety of transformers, reactors, power supply units and similar products for voltages up to 1 100 V - Part 2-4 : particular requirements and tests for isolating transformers and power supply units incorporating isolating transformers