May 1, 1992: In preparation for the direct operation into the Kyoto Municipal Subway Tozai Line, which was then under construction, Keihan model 700 electric cars (third generation) that correspond to the voltage increase of the Otsu line to 1500V were put into commercial operation.
1992年（平成4年）5月1日-建設中の京都市営地下鉄東西線への直通運転開始に伴う大津線の電圧の1500V昇圧に対応した京阪700形電車(3代)営業運転開始。