GB 19212.5-2011 Safety of transformers,reactors,power supply units and similar products for supply voltages up to 1 100 V—Part 5:Particular requirements and tests for isolating transformers and power supply units incorporating isolating transformers
Safety of transformers,reactors,power supply units and similar products for supply voltages up to 1 100 V—Part 5:Particular requirements and tests for isolating transformers and power supply units incorporating isolating transformers