Maintenance method in nuclear power plant
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United States of America Patent
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-
Apr 17, 2001
Grant Date -
N/A
app pub date -
May 25, 1999
filing date -
Feb 9, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A maintenance of a suppression pool or spent fuel storage pool in a reactor primary containment vessel of a nuclear power plant includes a cleaning step of a water in the suppression pool and a decontamination step of an interior of the suppression pool, and in the maintenance, the coated film applied on an inner surface of a wall portion of the suppression pool is inspected. These cleaning, decontaminating and inspecting steps are performed by divers while maintaining a water level in the suppression pool.
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