GB 19212.14-2012
電源電壓為1 100V及以下的變壓器、電抗器、電源裝置和類似產品的安全.第14部分:自耦變壓器和內裝自耦變壓器的電源裝置的特殊要求和試驗
Safety of transformers,reactors,power supply units and similar products for supply voltages up to 1100V.Part 14:Particular requirements and tests for auto transformers and power supply units incorporating auto transformers