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Refined Globe Valve Thrust Prediction Model to Bound Midstroke ...

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Background<br />

March March 2000 – NRC Issued RIS 2000-03 2000 03 “Resolution Resolution<br />

of Generic Safety Issue 158: Performance of<br />

Safety-Related<br />

Safety Related POVs Under Design Basis<br />

Conditions” Conditions<br />

Prior Prior <strong>to</strong> RIS 2000-03 2000 03:<br />

• NRC and INPO conducted surveys and identified<br />

common cause failures with AOVs that can lead <strong>to</strong><br />

safety concerns, reac<strong>to</strong>r scrams, reduced plant<br />

efficiency<br />

– NUREG/CR-6654 NUREG/CR 6654 & NUREG-1275 NUREG 1275 Vol. 13<br />

– INPO SER 1-99 1 99<br />

Slide #4 #

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