ML13331B191
| ML13331B191 | |
| Person / Time | |
|---|---|
| Site: | San Onofre  |
| Issue date: | 06/16/1989 |
| From: | Trammell C Office of Nuclear Reactor Regulation |
| To: | Baskin K SOUTHERN CALIFORNIA EDISON CO. |
| Shared Package | |
| ML13331B192 | List: |
| References | |
| TAC-69585, NUDOCS 8906230006 | |
| Download: ML13331B191 (3) | |
Text
June 16, 1989 Docket No.:
50-206 DISTRIBUTION Docket Fi le NRC & LPDRs CTrammell (2)
Mr. Kenneth P. Baskin MVirgilio Vice President JLee Southern California Edison Company OGC-White Flint 2244 Walnut Grove Avenue PD5 Plant File Post Office Box 800 EJordan Rosemead, California 91770 BGrimes ACRS (10)
Dear Mr. Baskin:
SUBJECT:
RECERTIFICATION OF CHARGING PUMP MOTOR (TAC NO. 69585)
Re:
San Onofre Nuclear Generating Station, Unit No. 1 By letter dated December 29, 1988, Southern California Edison Company (SCE) submitted a response to the NRC request for additional information dated November 22, 1988 regarding the recertification, rewinding or replacement of the charging pump motors at San Onofre Nuclear Generating Station, Unit 1 (SONGS-1). Enclosure 1 to the SCE letter is a Westinghouse (the manufacturer) report dated September 14, 1988 which provides the evaluation of the continuous operation of the motors.
The charging pump motor thermal, mechanical and insulation design and construc tion were evaluated by Westinghouse and the results are submitted in this report. The analysis concludes that the motors have an adequate margin and can operate at 700HP with 1.15 service factor continuously. One of the motors was rewound in 1972 after a major incident when the pump seized. Supporting records and some data regarding the rewinding of this motor are not available as there was no requirement to retain these records at the Westinghouse repair facility.
The NRC staff has reviewed and discussed the SCE submittal and reached the conclusion that the SCE proposal to operate the south charging pump motor G-8B through Cycle 10 is acceptable provided that the motor is rewound or replaced by a qualified motor at the end of the fuel cycle.
A copy of our Safety Evaluation is enclosed for your information.
Sincerely, Charles M. Trammell, Senior Project Manager
-. 0 Project Directorate V C-4 Division of Reactor Projects -
- III, IV, V and Special Projects S0Office of Nuclear Reactor Regulation
Enclosure:
Safety Evaluation 0
P cc: w/enclosure:0r See next page o ci: 01 0D5
,ktJRSP/D: PD5 cL 0 ell:dr GWKnighton 6V/89 6/16/89
.R R UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 June 16, 1989 Docket No.:
50-206 Mr. Kenneth P. Baskin Vice President Southern California Edison Company 2244 Walnut Grove Avenue Post Office Box 800 Rosemead, California 91770
Dear Mr. Baskin:
SUBJECT:
RECERTIFICATION OF CHARGING PUMP MOTOR (TAC NO. 69585)
Re: San Onofre Nuclear Generating Station, Unit No. 1 By letter dated December 29, 1988, Southern California Edison Company (SCE) submitted a response to the NRC request for additional information dated November 22, 1988 regarding the recertification, rewinding or replacement of the charging pump motors at San Onofre Nuclear Generating Station, Unit 1 (SONGS-i). Enclosure 1 to the SCE letter is a Westinghouse (the manufacturer) report dated September 14, 1988 which provides the evaluation of the continuous operation of the motors.
The charging pump motor thermal, mechanical and insulation design and construc tion were evaluated by Westinghouse and the results are submitted in this report. The analysis concludes that the motors have an adequate margin and can operate at 700HP with 1.15 service factor continuously. One of the motors was rewound in 1972 after a major incident when the pump seized. Supporting records and some data regarding the rewinding of this motor are not available as there was no requirement to retain these records at the Westinghouse repair facility.
The NRC staff has reviewed and discussed the SCE submittal and reached the conclusion that the SCE proposal to operate the south charging pump motor G-8B through Cycle 10 is acceptable provided that the motor is rewound or replaced by a qualified motor at the end of the fuel cycle.
A copy of our Safety Evaluation is enclosed for your information.
Sincerely, Charles M. Trammell, Senior Project Manager Project Directorate V Division of Reactor Projects -
- III, IV, V and Special Projects Office of Nuclear Reactor Regulation
Enclosure:
Safety Evaluation cc: w/enclosure:
See next page
Mr. Kenneth P. Baskin San Onofre Nuclear Generating Southern California Edison Company Station, Unit No. 1 cc David R. Pigott Orrick, Herrington & Sutcliffe 600 Montgomery Street San Francisco, California 94111 Mr. Robert G. Lacy Manager, Nuclear San Diego Gas & Electric Company P. 0. Box 1831 San Diego, California 92112 Resident Inspector/San Onofre NPS U.S. NRC P. 0. Box 4329 San Clemente, California 92672 Mayor City of San Clemente San Clemente, California 92672 Chairman Board of Supervisors County of San Diego 1600 Pacific Highway Room 335 San Diego, California 92101 Regional Administrator, Region V U.S. Nuclear Regulatory Commission 1450 Maria Lane, Suite 210 Walnut Creek, California 94596 Dr. Gerard C. Wong, Chief Radiological Materials Control Section State Department of Health Services 714 P Street, Office Bldg. #8 Sacramento, California 95814 Mr. Don Womeldorf Chief Environmental Management California Department of Health 714 P Street, Room 616 Sacramento, California 95814 (8)