DIN EN 50216-2/A1:2003
电力变压器和电抗器配件.第2部分:带储油箱的液浸变压器和电抗器用气体和油驱动的继电器.修改件A1
Power transformer and reactor fittings - Part 2: Gas and oil actuated relay for liquid immersed transformers and reactors with conservator; Amendment A1; German version EN 50216-2:2002/A1:2002