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Japan

Why Tokai No. 2 Nuclear Power Plant Survived March 193

Kyusaku Natsume writes "In a potentially damning report, the Japanese government panel probing the Fukushima Daiichi meltdown has learned that the nuclear power plant Tokai No.2 avoided station blackout thanks to making a 6.1 m high seawall, but TEPCO failed to do the same in Fukushima. From the article: 'The tsunami that hit the Tokai plant on March 11 were 5.3 to 5.4 meters in height, exceeding the company's earlier estimate but coming in around 30 to 40 cm lower than its revised projection. After the tsunami hit, the Tokai plant lost external power just like Fukushima No. 1 did, because the sea wall was overrun, knocking out one of its three seawater pumps. But its reactors succeeded in achieving cold shutdown because the plant's emergency diesel generator was being cooled by the two seawater pumps that survived intact.'"

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