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Chernobyl Nuclear Accident Congressional Hearings Transcript

Chernobyl Nuclear Accident Congressional Hearings Transcript

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253<br />

fiU E S no N_2 . (Continued)<br />

- 4 -<br />

and to mitigate the adverse effects of such an accident should one<br />

occur.<br />

Foreign experience demonstrates that there are practical and<br />

reasonable opti.ons available to reduce the severe accident risk in<br />

this country as well. I would propose a three-part program to<br />

achieve this objective. First, each of the 100 operating plants<br />

in the U.S. should be reexamined to identify design deficiencies<br />

and vulnerabilities, of the type seen in our recent serious<br />

operating events and plant safety analyses, that could cause or<br />

contribute to a severe accident. Second, improvement programs<br />

should be required in areas of demonstrated weak performance at<br />

the U.S. plants such as management, maintenance, personnel<br />

performance and equipment reliability. Our objective should be to<br />

bring all U.S. plants up to the highest standards of operating<br />

performance being achieved in other countries. We should insist<br />

upon rapid improvement in the case of those U.S. plants with a<br />

history of poor performance.<br />

Third, new design features should be considered for existing and<br />

future U.S. plants which have the potential to reduce both the<br />

likelihood and the consequences of a core meltdown accident. The<br />

design features being added in foreign plants, such as an added<br />

independent decay heat removal system, improvements in the<br />

reliability of reactor control systems and emergency power supply<br />

systems, systems to protect against the loss of power to operate<br />

cooling and safety systems, and systems to allow the controlled<br />

63-756 0-86-9

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