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 Wysłany: Wto 8:16, 22 Mar 2011 Temat postu: No quick fix seen at Japan's nuclear plant |
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No quick fix seen at Japan's nuclear plant
FUKUSHIMA, Japan – Officials raced Monday to restore electricity to Japan's leaking nuclear plant,[link widoczny dla zalogowanych], but getting the power flowing will hardly be the end of their battle: With its mangled machinery and partly melted reactor cores, bringing the complex under control is a monstrous job.
Restoring the power to all six units at the tsunami-damaged complex is key, because it will,[link widoczny dla zalogowanych],[link widoczny dla zalogowanych], in theory,[link widoczny dla zalogowanych], power up the maze of motors, valves and switches that help deliver cooling water to the overheated reactor cores and spent fuel pools that are leaking radiation.
In another setback, the plant's operator said Monday it had just discovered that some of the cooling system's key pumps at the complex's troubled Unit 2 are no longer functional — meaning replacements have to be brought in. Tokyo Electric Power Co. said it had placed emergency orders for new pumps, but how long it would take for them to arrive was unclear.
If officials can get the power turned on,[link widoczny dla zalogowanych],[link widoczny dla zalogowanych], get the replacement pumps working and get enough seawater into the reactors and spent fuel pools,[link widoczny dla zalogowanych], it would only take a day to bring the temperatures back to a safe, cooling stage, said Ryohei Shiomi, an official with the Nuclear and Industrial Safety Agency.
And if not?
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