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IEC

PDF Standards IEC 61558-2-16 Ed. 2.0 b:2021

Safety of transformers, reactors, power supply units and similar products for supply voltages up to 1 100 V – Part 2-16: Particularrequirements and tests for switch mode power supply units andtransformers for switch mode power supply units
standard by International Electrotechnical Commission, 06/08/2021

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IEC

PDF Standards IEC 60909-3 Ed. 3.0 b:2009

Short-circuit currents in three-phase AC systems – Part 3: Currents during two separate simultaneous line-to-earth short circuits and partial short-circuit currents flowing through earth
standard by International Electrotechnical Commission, 03/09/2009

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IEC

PDF Standards IEC 60335-2-72 Ed. 2.0 b:2002

Household and similar electrical appliances – Safety – Part 2-72: Particular requirements for automatic machines for floor treatment for commercial and industrial use
standard by International Electrotechnical Commission, 07/23/2002

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