Japan nuclear firm admits to lapses

The accident at a Japanese nuclear plant that killed four workers occurred in a section that was to be inspected this week for the first time in 28 years, and months after a warning of potential problems, the owner has said.

    The accident has dented public faith in Japan's nuclear policy

    The admission by Kansai Electric Power on Tuesday is likely to further dent public confidence in Japan's nuclear policy, raising questions about the condition of some of Japan's ageing plants and management's apparent laxity on safety matters.

       

    "The pipe was to have been checked at an upcoming regular inspection," said a company official.

     

    Four workers were killed in Japan's deadliest nuclear accident on Monday when super-heated steam escaped from a ruptured pipe in a building housing turbines for a reactor at the Mihama nuclear power plant, 320km west of Tokyo.

       

    There was no radiation leak, but the accident raised further concerns about Japan's nuclear-safety record.

       

    Inspection list

     

    Ageing pipes may now have to be
    replaced at all N-power plants

    Kansai said the pipe had not been checked since 1976 because it was not on an inspection list - something the company was notified of in November by a maintenance sub-contractor.

     

    Some independent analysts said the accident could force the government to shut down its nuclear reactors for inspections.

       

    "If the accident proves to have originated in a critical system, the implications of the 9 August non-radioactive steam leak will prove deep and immediate, forcing the government to order another round of safety inspections," said Strategic Forecasting

    Inc, a US-based consulting group.

     

    Replacements

       

    "Early indications are that the bursting pipe that released the steam was already through 28 years of its 30-year life span, raising the possibility that similar pipes on all plants might have to be replaced," it said in a report.

     

    "The pipe was to
    have been checked
    at an upcoming regular inspection"

    Kansai Electric Power

    The government ordered utilities to check records to ensure they had not missed checking the pipes that Kansai had not.

       

    Kouji Yamashita, a nuclear plant safety inspector at the Trade Ministry, said there were 22 other nuclear-power generators in Japan of the same design as the Mihama reactor, 10 run by Kansai Electric, the rest operated by four other firms.

       

    Police were investigating whether the company neglected safety standards by letting more than 200 workers prepare for an annual inspection while the reactor, which

    was in a separate building, was still running.

       

    A police spokesman said investigations were continuing.

    SOURCE: Reuters


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