In the Fukushima Daaiichi Nuclear Power Plant , the Futaba line is more than 450 kV and the two Ookuma lines are less than 300 kV .
The Fukushima Daiichi plant is connected to the rest of the power grid by three lines , the 500 kV Futaba Line ( 双葉線 ) and the two 275 kV Ookuma Lines ( 大熊線 ) to the Shin-Fukushima ( New Fukushima ) substation , also in Tomioka , Fukushima .
Fukushima Daiichi Nuclear Power Plant