ML102720036
| ML102720036 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 09/22/2010 |
| From: | Baxter D Duke Energy Carolinas |
| To: | Document Control Desk, Office of New Reactors |
| References | |
| Download: ML102720036 (6) | |
Text
Duke WEnergy.
DAVE BAXTER Vice President Oconee Nuclear Station Duke Energy ON01 VP / 7800 Rochester Highway Seneca, SC 29672 864-873-4460 864-873-4208 fax dave. baxter@duke-energy. corn September 22, 2010 U.
S.
Nuclear Regulatory Commission Washington, D. C.
20555 Attention: Document Control Desk
Subject:
Duke Energy Carolinas, LLC Oconee Nuclear Station Docket Numbers 50-269,
- 270, and 287 Technical Specification Bases (TSB)
Change On August 6,
- 2010, Duke Energy Implemented approved revisions to TSB 3.4.12, Low Temperature Overpressure Protection (LTOP)
System, Surveillance Requirement (SR) 3.4.12.7 frequency. contains the new TSB pages, Attachment 2 contains the marked up version of the TSB pages.
If any additional information is needed, please contact Reene Gambrell at 864-873-3364.
Sincerely, Dave axter Oconee Nuclear Site AO00 www. duke-energy. corn
U.
S.
Nuclear Regulatory Commission September 22, 2010 Page 2 cc:
Mr.
John Stang Office, of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Mail Stop 0-8 G9A Washington, DC 2,0555 Mr.
Luis Reyes Regional Administrator, Region II U.S. Nuclear Regulatory Commission Marquis One Tower 245 Peachtree Center Ave.,
NE Suite 1200
- Atlanta, Ga.
30303-1257 Andy Sabisch Senior Resident Inspector Oconee Nuclear Station S.
E.
Jenkins, Section Manager Division of Waste Management S.C. Department of Health and Environmental Control 2600 Bull Street
- Columbia, SC 29201
(
Attachment #1 Proposed TSB revision Insert Page B 3.4.12-12 Remove Page B 3.4.12-12
LTOP System B 3.4.12 BASES SURVEILLANCE REQUIREMENTS SR 3.4.12.6 (continued)
The Frequency is shown by operating practice sufficient to regularly assess indications of potential degradation and verify operation within the safety analysis.
SR 3.4.12.7 The performance of a CHANNEL CALIBRATION is required every 18 months. The CHANNEL CALIBRATION for the LTOP setpoint ensures that the PORV will be actuated at the appropriate RCS pressure by verifying the accuracy of the instrument string.
REFERENCES
- 1.
- 2.
- 3.
UFSAR, 5.2.3.7.
- 4.
OCONEE UNITS 1, 2, & 3 B 3.4.12-12 BASES REVISION DATED 7/21/10 I
Attachment #2 Markup of current TSB
LTOP System B 3.4.12 BASES SURVEILLANCE REQUIREMENTS SR 3.4.12.6 (continued)
The Frequency is shown by operating practice sufficient to regularly assess indications of potential degradation and verify operation within the safety analysis.
/"Iipfqrmance of a CHANNEL CALIBRATION is required every 8 m is.
The CHANNEL CALIBRATION for the LTOP setpoint
/'*
ensure that the PORV will be actuated at the appropriate RCS pressure
- --.~--*.y.~ying the accuracy of the instrument string.
REFERENCES
- 1.
- 2.
- 3.
UFSAR, 5.2.3.7.
- 4.
I OCONEE UNITS 1, 2, & 3 B 3.4.12-12 Amendment Nos.
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