ML18152A634
| ML18152A634 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 01/05/1988 |
| From: | Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| 87-519A, IEB-85-003, IEB-85-3, NUDOCS 8801140002 | |
| Download: ML18152A634 (2) | |
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VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 W. L. STEWART VICE PRESIDENT NucLEAB OPERATIONS January 5, 1988 United States Nuclear Regulatory Commission Attention:
Document Control Desk Washington, D.C.
20555 Gentlemen:
VIRGINIA ELECTRIC AND POWER COMPANY SURRY POWER STATION UNITS I AND 2 REVISION TO SUPPLEMENTAL RESPONSE TO IEB 85-03 Serial No.
. NO/GDM:pms Docket Nos.
License Nos.
87-519A Rl 50-280 50-281 DPR-32 DPR-37 By our letter Serial No.87-519 dated September 18, 1987, Virginia Electric and Power Company provided additional information concerning IEB 85-03, "Motor Operated Valve Common Mode Failures During Pl ant Transients Due to Improper Switch.Settings.". In subparagraph ( a) of our response to NRC Comment 2, we committed to revising Attachment II to our October 17, 1986 response to IEB 85-03.
The revised table is attached.
Changes to the table include the addition of the charging pump mini-flow recirculation valves (1275/2275 A,B,C and 1373/2373).
If you have any further questions, please contact us.
Very truly yours,
~'
Q:,*~*;../ \\J~/ '~ \\
W. L. Stewart Attachment cc:
U. S.. Nuclear Regulatory Commission 101 Marietta Street, N.W.
Suite 2900 Atlanta, GA 30323 Mr. W. E. Holland NRC Senior Resident Inspector Surry Power Station 8801140002 880105 PDR ADOCK 05000280 p
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t Valve LCV-ll 15B, D LCV-2115B, D LCV-1115C, E LCV-2115C, E 1267A, B 2267A, B 1269A, B 2269A, B 1270A, B 2270A, B 1286A, B, C 2286A, B, C 1289A, B 2289A, B 1867A, B 2867A, B FW-151A-F FW-251A-F FW-160A, B FW-260A, B 1275A, B, C 2275A, B, C 1373 2373 e
TABLE I MAXIMUM DIFFERENTIAL PRESSURE
SUMMARY
SURRY UNITS 1 AND 2 Valve Function RWST to high-head SI pump isolation VCT to charging pump isolation Low-head SI to high-head SI isolation Charging pump to normal charging isolation Charging pump to normal charging isolation High-head SI to cold leg isolation Aux stm gen feed pump to stm gen isolation Aux feed cross-connect isolation Charging Pump Recirculation to Seal Water Heat Exchanger Attachment Design Basis tiP 27 psi 27 psi 84 psi 84 psi
. 145 psi 145 psi 145 psi 145 psi 145 psi 145 psi 2747 psi 2747 psi 2630 psi 2630 psi 2630 psi 263.0 psi 1184 psi 1184 psi 1193 psi 1193 psi 2746 psi 2746 psi 2747 psi 2747 psi