DIN EN 50464-4/A1:2012
最高壓力不超過36 kV的設備用50 Hz,50 kVA至2500 kVA的三相油浸式配電變壓器.第4部分:關于增壓式波形槽的要求和試驗.德文版本EN 50464-4-2007/A1-2011
Three-phase oil-immersed distribution transformers 50 Hz, from 50 kVA to 2500 kVA with highest voltage for equipment not exceeding 36 kV - Part 4: Requirements and tests concerning pressurised corrugated tanks; German version EN 50464-4:2007/A1:2011