ML13310A728
| ML13310A728 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 06/25/1982 |
| From: | Papay L Southern California Edison Co |
| To: | |
| Shared Package | |
| ML13310A727 | List: |
| References | |
| NUDOCS 8206290418 | |
| Download: ML13310A728 (10) | |
Text
BEFORE THE UNITED STATES NUCLEAR REGULATORY COMMISSION Application of SOUTHERN CALIFORNIA EDISON COMPANY and SAN DIEGO GAS & ELECTRIC COMPANY for a Class 104(b) License to Acquire, DOCKET NO. 50-2U6 Possess, and Use a Utilization Facility as Part of Unit No. 1 of the San Onofre Nuclear Amendment No. 106 Generating Station SOUTHERN CALIFORNIA EDISON COMPANY and SAN DIEGO GAS & ELECTRIC COMPANY, pursuant to 10 CFR 50.90, hereby submit Amendment No. 106.
This amendment consists of Proposed Change No. 114 to the Technical Specifications incorporated in Provisional Operating License No. DPR-13 as Appendices A and B.
Proposed Change No. 114 is a request to modify Technical Specification 4.2.3 to allow a delay in the SIS Hydraulic Valve Testing interval during periods when the plant is in Mode 5 or 6 at the time the test is required. In these cases, the test will be performed in either Mode 3 or 4 prior to the next entry into Mode 2 operation.
In the event of conflict, the information in this Amendment No. 106 supersedes the information previously submitted.
e206290418 820625 PDR ADOCK 05000206,.
-2 Accordingly, it is concluded that (1) the proposed change does not involve an unreviewed safety question as defined in 10 CFR 50.59, nor does it present significant hazards considerations not described or implicit in the Final Safety Analysis, and (2) there is a reasonable assurance that the health and safety of the public will not be endangered by the proposed change.
This Proposed Change No. 114, submitted as Amendment No. 106, is a clarification of Amendment 57 to the license DPR-13 issued by the Nuclear Regulatory Commission, November 5, 1981.
That Amendment was in response to our Proposed Amendment 99 which included a fee of $4,000 per 10 CFR 170.22.
Since this change is minor and only provides a clarification of the Amendment, it should not require significant review by the Commission and no fee beyond that submitted with Amendment 99 is provided.
-3 Subscribed on this
_f day of
/f,_,
Respectfully submitted, SOUTHERN CALIFORNIA EDISON COMPANY By Subscribed and sworn to before me this off
_day of 4/,
Nota Public in and for the County of Los geles, State of California My Commission Expires:
.;7
//FL ME~AGRES CRABR EE NOTARY 7PUBLIC - CALIFORNIA PRINCIPAL OFFICE IN LOS ANGELES COUNTY ExP. AU&- 27, 1982
-4 Subscribed on this,2'o day of Respectfully submitted, SAN DIEGO GAS & ELECTRIC COMPANY By Subscribed and sworn to before me this 7/,' day of OFFICIAL SEAL DONNA M. TAKAHASHI NOTARY PUBLIC - CALIFORNIA Principal office in San Diego County MY Commission Exp. Jan. 27, 1984 Notary Public in and for the County of San Diego, State of California My Commission Expires: /-
7-
-5 Charles R. Kocher James A. Beoletto Attorneys for Southern California Edison Company By _______C-4,j
-6 David R. Pigott Samuel B. Casey Orrick, Herrington & Sutcliffe Attorneys for San Diego Gas & Electric Company By
UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION In the Matter of SOUTHERN
)
CALIFORNIA EDISON COMPANY
)
and SAN DIEGO GAS & ELECTRIC )
Docket No. 50-206 COMPANY (San Onofre Nuclear )
Generating Station Unit No. 1)
CERTIFICATE OF SERVICE I hereby certify that a copy of Amendment No. 106 was served on the following by deposit in the United States Mail, postage prepaid, on the 25th day of Jun&
1982.
Henry J. McGurren, Esq.
Staff Counsel U. S. Nuclear Regulatory Commission Washington, D. C. 20545 David R. Pigott, Esq.
Samuel B. Casey, Esq.
Orrick, Herrington & Sutcliffe 600 Montgomery Street San Francisco, California 94111 John V. Morowski Bechtel Power Corporation P. 0. Box 60860, Terminal Annex Los Angeles, California 90060 Michael L. Mellor, Esq.
Thelen, Marrin, Johnson & Bridges Two Embarcadero Center San Francisco, California 94111 Huey Johnson Secretary for Resources State of California 1416 Ninth Street Sacramento, California 95814 Janice E. Kerr, General Counsel California Public Utilities Commission 5066 State Building San Francisco, California 94102
-2 J. Rengel Atomic Power Division Westinghouse Electric Corporation Box 355 Pittsburgh, Pennsylvania 15230 A. E. Gaede P. 0. Box 373 San Clemente, California 92672 Frederick E. John, Executive Director California Public Utilities Commission 5050 State Building San Francisco, California 94102 Docketing and Service Section Office of the Secretary U. S. Nuclear Regulatory Commission Washington, D. C. 20555 Charles R. Kocher Associate General Counsel Southern California Edison Company
DESCRIPTION OF PROPOSED CHANGE AND SAFETY ANALYSIS PROPOSED CHANGE NO. 114 TO THE TECHNICAL SPECIFICATIONS PROVISIONAL OPERATING LICENSE DPR-13 This is a request to revise Appendix A, Technical Specification 4.2.3, "Safety Injection System Hydraulic Valve Testing (Surveillance Requirement)."
REASON FOR PROPOSED CHANGE Technical Specification 4.2.3.1 requires that at least once every 92 days the unit be placed in mode 3 or 4 and a Hot SIS functional test be performed.
However, during periods of long shutdowns, placing the plant in mode 3 or 4 for the sole purpose of performing this test cannot be justified. A modification in the required surveillance interval will therefore allow for the requisite testing to be performed during subsequent startup operations.
EXISTING SPECIFICATION Technical Specification 4.2.3.1 currently reads (in part) as follows:
- 1. At least once every 92 days, the unit shall be placed in mode 3 or 4 and a Hot SIS functional test (with the MOV-850A, B and C valves locked closed) shall be performed....
PROPOSED SPECIFICATION Technical Specification 4.2.3.1 would be revised to read as follows:
- 1. At least once every 92 days, (except when the interval lapses while in mode 5 or 6, in which case the test may be delayed until a mode 3 or 4 operation prior to the next entry into mode 2) the unit shall be placed in mode 3 or 4 and a Hot SIS functional test (with the MOV-850 A, B and C valves locked closed) shall be performed....
BASIS This change would revise the San Onofre Nuclear Generating Station, Unit 1 Technical Specifications to allow for surveillance testing of the SIS Hydraulic Valves at an interval greater than 92 days when the test interval would lapse during mode 5 or 6 operation.
During shutdown intervals lapsing the 92 day interval, it cannot be expected to place the unit in Mode 3 or 4 for the purpose of running this test.
Sufficient data to confirm the valves reliability can be derived from normal testing without requiring extenuating circumstances for testing during shutdown.
-2 This modified Technical Specification explicitly states the actions that are now assumed for the above scenarios.
SAFETY ANALYSIS This change to the San Onofre Nuclear Generating Station, Unit 1 Technical Specifications would explicitly permit the required SIS Hot functional test to be performed during plant startup operations when it is not practical to do so during periods of mode 5 or 6 operation.
The purpose of these tests is to confirm the reliability of the Hydraulic Valves. Significant degradation of the valves is not expected to occur over the lengths of time the unit may be expected to be down for backfit and/or maintenance. Therefore, performance of this test during startup operation would meet the requirements of confirming valve reliability over time. It should be noted that as part of Technical Specification 4.2.3 a long term surveillance test program must be developed prior to the next refueling outage. This program will probably rely on information gathered from the current test program.
As a result, it is reasoned that (1) the proposed change does not involve an unreviewed safety question as defined in 10 CFR 50.59, nor does it present signficant safety considerations not described or previously evaluated in the Final Safety Analysis, and (2) there is reasonable assurance that the health and safety of the public will not be endangered by the proposed change.
GEH:4437