ML19268C413
| ML19268C413 | |
| Person / Time | |
|---|---|
| Site: | North Anna  |
| Issue date: | 01/11/1980 |
| From: | Brown S VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| IEB-79-14, NUDOCS 8001160454 | |
| Download: ML19268C413 (3) | |
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Seafor Vici o*esident Dewer it ?.ti on Attachment En949eeMne end Cons'ruction cc: **. Victor Stelle, Di**ctor Off te n* Inspection f< Enforcemant Mr. Haroli 9. 0*nton. Di*ectae Office of Nucle'tr Deactor R*gulatien
Serial No. 552G/070279 PSELC 1-8-79 TABLE 1*
SUMMARY
OF VALVE AND OPERATOR WEIGHT REVIEW Unit 1 Unit 1 Unit 2 S&W Scope Non-S&W Scope S&W Scope Total Number of Computer-Analyzed 143 21 143 Seismic MSK's Total Number of MSK's with 96 12 107 Acceptable Review Number of MSK's containing 42 36 no valves Number of MSK's acceotable 7
2 per previous I.E.Bulletin 79-04 review Number of MSK's with valve weights 9
44 within 10% of actual weight Number of MSK's acceptable af ter 38 12 25 engineering evaluation Total Number of MSK's Requiring 47 9
36 Evaluation or vendor Verification of Valve Weights Number of MSK's requiring vendor 0
0 0
valve weight verification before review can start **
Number of MSK's identified which 47 9
36 require further evaluation
- This table is a sumary of th? computer analyzed seismic MSK's.
"Non-S&W Scope" MSK's are those analyzed originally by Teledyne and Nuclear Services. All Unit 2 MSK's were analyzed by S&W,
- Review proceeding, assuming present data is accurate, while awaiting final valve weight reverification from two vendors and NSS Supplier (Westinghouse).
Note: An MSK is an isometric piping drawing.
C2005/83