GOST IEC 61558-2-14-2015 Safety of transformers, reactors, power supply units and combinations thereof. Part 2-14. Particular requirements and tests for variable transformers and power supply units incorporating variable transformers
2015GOST IEC 61558-2-14-2015 Safety of transformers, reactors, power supply units and combinations thereof. Part 2-14. Particular requirements and tests for variable transformers and power supply units incorporating variable transformers