ML20105A561
| ML20105A561 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 01/28/1985 |
| From: | Dixon O SOUTH CAROLINA ELECTRIC & GAS CO. |
| To: | Harold Denton Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8502040396 | |
| Download: ML20105A561 (5) | |
Text
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SOUTH CAROLINA ELECTRIC & GAS COMPANY POST OFFICE 764 COLuualA. SOUTH CAROLINA 29218 g,7f;,",,";,l,";
January 28, 1985 NucLean OpenATioNS Mr. Harold R. Denton Office'of Nuclear Reactor Regulation r
U.S. Nuclear Regulatory Commission i
Washington, DC 20555
SUBJECT:
Virgil C. Summer Nuclear Station Docket No. 50/395 Operating License No. NPF-12 Valve Test Relief Request First Interval Inservice Inspection Program
Dear Mr. Denton:
s South Carolina Electric & Gas Company (SCEEG) submits the attached
_ new Valve Test Relief Requests tx) the Valve Inservice Inspection Program.for the Virgil C.
Summer Nuclear Station, Unit No.-1.
~These' Relief Requests are used in conjunction with General Test Procedure 302, " General _ Procedure for Inservice Testing of
.Va lve s."
The Relief Requests submitted would provide alternatives to.the ASME Code Section XI Requirements (IWV-3300) for performing Jvisual verification of valve position.
An alternate testing method from IWV-3300 is necessary because of inaccessibility of valves inside' valve chambers, or the particular design of solenoid actuated valves.
t If additional information is required, please contact us at your convenience.
7 Very truly yours, O. W. Dixon, Jr.
ARK:JWP:OND/dwf Attachments (4)
- cc V. C.
Summer-C. A. Price T.
C. Nichols, Jr./O. W. Dixon, Jr.
C.
L. Ligon.(NSAC)
E..H.
Crews, Jr.
K.
E.
Nodland E. C. Roberts R. - A. Stough W. A. Williams, Jr..
G. Percival D.'A..Nauman.
C. W. Hehl.
J. P. O' Reilly J. B.
Knotts, Jr.
Group Managers NPCF 0.
S. - Bradham -
File 8502040396 850128 PDR ADOCK-05000395 G
PDR l
VL. - -
VALVE TEST RELIEF REQUESTS J.
SYSTEM:
SAFETY INJECTION (SI)
J.26 Valves:
XVG-8811A, XVG-8811B Category:
A Class:
2A Function:
Containment Sump to RHR Pump Suction Isolation Test Requirements:
Valves with remote position indicators which, during plant operation, are inaccessible for direct observation shall be visually observed during a plant shutdown, at least once every two (2) years to verify that remote valve indications accurately reflect valve operation (IWV-3300 of Section XI of ASME Boiler &
Pressure Vessel Code).
Basis for Relief:
Valves are located inside large bolted valve encapsulation chambers which are an extension of Reactor Building Containment.
Opening the chambers would violate containment integrity and can only be done during a refueling.
Several weeks of additional work and testing would be required to remove the chambers to visually verify valve position resulting in undue equipment maintenance and undue personnel radiation exposure.
^
Alternate Test:
Perform visual verification of valve position per IWV-3300 at.least once every five (5) years during regularly scheduled maintenance.
In addition, leak test and stroke test results which determine valve operability will be used to verify remote valve indication prior lto the five (5) year program.
VALVE TEST RELIEF REQUESTS K.
SYSTEM:
REACTOR BUILDING SPRAY (SP)
K.4
. Valve s:
XVG-3004A, XVG-3004B Category:
A Class:
2A Function:
Reactor Building Spray Sump Isolation Valve Test squirements:
Valves with remote position indicators which, during plant operation, are inaccessible for direct observation shall be visually observed during a plant shutdown, at least once every two (2) years to verify that remote valve indications accurately reflect valve operation (IWV-3300 of Section XI of ASME Boiler &
Pressure Vessel Code).
Basis for Relief:
Valves are located inside large bolted valve encapsulation chambers which are an_ extension of Reactor Building Containment.
Opening.the chambers would violate containment integrity and can only be done during a refueling.
- Several weeks of additional work and testing would be required to remove the chambers to visually verify valve position resulting in undue equipment maintenance and undue-personnel radiation exposure.
-Alternate Test:
Perform visual-verification of valve position per IWV-3300 at least' once every five (5),
years during regularly scheduled maintenance.
In addition, leak test and stroke test results which determine valve operability will, be.used to verify remote valve indication prior to the five.(5) year program.
k i-
~.
VALVE TEST RELIEF REQUESTS R..
SYSTEM: -
R.4
- Valves:
XVX-6050A, XVX-6054 Category:
A Class:
2A Function:
Penetration 301 Isolation valves Test-Requirements:
Valves with remote position indicators which, during plant operation, are inaccessible for direct observation shall be visually observed during a plant shutdown, at least once every two (2) years to verify that remote valve indications accurately reflect valve operation (IWV-3300 of Section XI of ASME Boiler &
Pressure Vessel Code).
Basis for Relief:
Valves are solenoid actuator valves with no visible external means of verifying valve operation.
Alternate. Test:
.Use leak test results of 10 CFR 50, Appendix J, once every two-(2) years to. verify proper valve closure.
V I
d '
L.
4-VALVE TEST RELIEF REQUESTS U.-
SYSTEM:
SAMPLE SYSTEM (SS)
U.1 Valves:
XVX-9339, XVX-9341, XVX-9356A, XVX-9356B, XVX-9357, XVX-9364B, XVX-9364C, X VX-936 5B, XVX-9365C, XVX-9387, XVX-9398A, XVX-9398B, XVX-9398C Category:
A Class:
2A Function:
Penetration Isolation Valves Test Requirements:
Valves with remote position indicators which, during plant operation, are inaccessible for direct observation shall be visually observed during a plant shutdown, at least once every two (2) years to verify that remote valve indications accurately reflect valve operation
-(IWV-3300 of Section XI of ASME Boiler &
Pressure Vessel Code).
Basis for Relief:
Valves are solenoid actuated valves with no visible external means of verifying valve operation.
Alternate Test:
Use-leak test results of 10 CFR 50, Appendix 3, once every two (2) years to verify proper valve closure.
(..