ML18142A058
| ML18142A058 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 09/25/1984 |
| From: | Stewart W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | Harold Denton, Varga S Office of Nuclear Reactor Regulation |
| References | |
| RTR-NUREG-0737, RTR-NUREG-737, TASK-2.F.2, TASK-TM 555, NUDOCS 8410010092 | |
| Download: ML18142A058 (2) | |
Text
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VIRGINIA. ELECTRIC A.ND POWER COMPANY RICHMOND, VIRGINIA 23261 W. L. STEWART VICE PRESIDENT NUCLEAR OPERATIONS September 25, 1984 Mr. Harold R. Denton, Director Office of Nuclear Reactor Regulation Attn:
Mr. Steven A. Varga, Chief Serial No. 555 NO/JDH:acm Docket Nos. 50-280 50-281 License Nos. DPR-32 DPR-37 Operating Reactors Branch No. 1 Division of Licensing U.S. Nuclear Regulatory Commission Washington, D. C. 20555 Gentlemen:
VIRGINIA ELECTRIC AND POWER COMPANY SURRY POWER STATION UNIT NOS. 1 AND 2 NUREG 0737 ITEM II.F.2, INSTRUMENTATION FOR DETECTION OF INADEQUATE CORE COOLING This letter addresses three aspects of Vepco's effort to meet the requirements of NUREG 0737 Item II.F.2, Instrumentation for Detection of Inadequate Core Cooling.
The status of implementation for the Reactor Vessel Level Instrumen-tation System, Upgrade of the Emergency Operating Procedures, and Core Exit Thermocouple (CETC) Upgrade is provided below.
- 1.
- 2.
Reactor Vessel Level Instrumentation System (RVLIS)
Unit 1 has two RVLIS channels operable.
Unit 2 has one RVLIS channel operable.
The second RVLIS channel is inoperable and containment access is required to identify and repair the faulty components.
Difficulty in obtaining replacement parts is a potential problem.
Emergency Operating Procedures (EOP)
Vepco currently plans to have the Control Room Design Review (CRDR) completed by mid-1985.
Concurrent with this review, the EOPs will be upgraded to Revision 1 of the Westinghouse Emergency Response Guidelines.
The upgraded EOPs will be verified; taking into account RVLIS and the existing CETCs.
After the CETCs are upgraded (see Item 3 below), EOPs will be modified as necessary to comply with plant configuration.
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8410010092 840925.
PDR AD0CK 05000280.
1 p
A,. __.
VIRGINIA ELECTRIC AND POWER COMPANY TO Harold R. Denton
- 3.
Incore Thermocouple Upgrade Vepco will upgrade the core exit thermocouples using a bottom-mounted design that meets the requirements of both NUREG 0737, Appendix B, and NUREG 0737, Item II.F.2, Attachment 1.
As stated in our letter (Serial No.
448) dated August 1, 1984, this upgrade will be performed in conjunction with other Regulatory Guide 1. 97 modifications currently scheduled for the 1986 refueling outages.
Appropriate Technical Specification changes are being considered.
Should you have questions or need additional information, please contact us.
VJC~
W. L. Stewart cc:
Mr. James P. O'Reilly Regional Administrator Region II, USNRC Mr. D. J. Burke NRC Resident Inspector Surry Power Station