About 60 people including utility employees and prefectural officials participated in the drill at the Ikata nuclear plant's No 3 reactor, which was carried out on the assumption that the 890,000-kilowatt pressurized-light-water reactor had lost all electric power supply as a result of tsunami damage.
The drill confirmed procedures to supply electricity to the reactor from a power-supply vehicle and inject water into the steam generator and spent fuel pool from a fire engine.
Shikoku Electric assumed a tsunami of up to about 2.6 meters at the plant, which is located 10 meters above sea level. The plant can thus withstand a tsunami three times higher than envisaged.
The operator plans to conduct similar drills at the No. 1 and No 2 reactors.