ML20079R758
| ML20079R758 | |
| Person / Time | |
|---|---|
| Site: | Brunswick  |
| Issue date: | 06/20/1983 |
| From: | Howe P CAROLINA POWER & LIGHT CO. |
| To: | Vassallo D Office of Nuclear Reactor Regulation |
| References | |
| LAP-83-233, NUDOCS 8306240246 | |
| Download: ML20079R758 (3) | |
Text
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a SERIAL: LAP-83-233 Carolina Power & Light Company JUN 201993 Director of Nuclear Reactor Regulation Attention:
Mr. D. B. Vasaallo, Chief OperatinS Reactors Branch No. 2 Division of Licensing United States Nuclear Regulatory Commission Eshington,. DC 20555 BRUNSWICK ST3AM ELECTRIC PLANT,. UNIT NOS.1 AND 2 DCCKET NOS. 50-325 AND 50-324 LICENSE NOS. DPR-71 AND DPR-62 NRC REQUESTED TECHNICAL SPECIFICATION REVISIONS SCHEDULE FOR SUBMITTAL
Dear Mr. Vassallo:
By letters dated May 2,1983 (Serial No. LAP-83-099) and May 6,1983 (Serial No. LAP-83-167), CP&L submitted to the NRC Staff proposed Technical Specification'(TS) ~ revisions needed to support Brunswick-1 Cycle 4
. ' Subsequently, members of your staff requested CP&L to include as operation.
part of the above referenced submittals TS revisions for two additional systecs not presently addressed in the Brunswick TS: Plant Systems Actuation Instrissentation (GE BWR-4 Standard Technical Specification 3/4.3.9) and Main Turbine Bypass System (GE BWR-4 SfS 3/4.7.10)
As discussed with the Brunswick Project Manager, Mr. Sam D. MacKay, CP&L is reviewing the STS versions of these two specifications to determine the extent of their plant-specific applicability to the Brunswick Plant. This review encompasses a review of the plant to verify that the system as described in the STS is present, the determination of plant-specific values for instrumentation setpoints and valve response times, the determination of
. plant-specific instrtsnent tag ntsaber references, the determination of plant-specific surveillance intervals, and a review to scope the extent of procedure revisions and additions necessary to implement these new requirements.
Therefore, to allow sufficient time for these reviews to be performed and verified, CP&L commi-cs to submit to the NRC Brunswick-specific TS' revisions concerning plant systems actuation instrumentation (for the main feedwater/ turbine trip system) and the main turbine bypass system within 30 days of Brunswick-1 start-up.
In addition, CP&L commits to begin following these proposed TS revisions (to the extent these proposed requirements do not conflict with currently approved Brunswick TS requirements) upon submittal of the TS. revisions to the MRC Staff for review.
8306240246 830620 PDR ADDCM 05000324 Ogl P
PDR ammeur 411 Fayetteville Street
- P. O. Box 1551
- Raleigh N. C. 27602
~,., _, _. _ _,
i D. f. Vassallo t Carolina Power & Light Company has reviewed the STS requirements relative to the continued operation of the Brunswick Plant,during the interim period until TS requirements are approved and issued by the NRC. The-Brunswick feedwater system / main turbine' trip system is composed of three channels which operate as a 2-out-of-3 coincidence logic. Each of these channels consists of (1) a transmitter, (2) a density correction module, and
' (3) ~an alarm / trip module. Each channel component is calibrated on at least an 18 month frequency. Enclosed is a list of when the calibrations of the trananitter, density correction module, and alarm / trip module were last performed for both Brunswick-1 and Brunswick-2. The turbine bypass system is presently tested every seven days by cycling each turbine bypass valve.
Although the turbine bypass system and the feedwater system / main turbine _ trip systems are not presently required by the Brunswick TS, these systems are normally maintained operable during turbine operation. Based on the above reasons, CP&L believes that the continued safe operation of the Brunswick Units is justified until NRC issuance of the necessary TS revisions.
If you have any questions concerning this issue, please contact our staff.
Yours very truly, P.'W.
Howe
-Vice President Brunswick Nuclear Project WRM/ lev (7072WRM) l Enclosure cc:
Mr. p. O. Myers ON;g BSEP)
Mr. J. P. 0'Ref1 h (E *-RII)
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Mr. S. D. MacTa3 l
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ENCLOSUEE TO LAP-83-233 LAST CALIBRATION FOR FERIBIATER SYSTEM / MAIN TURBINE TRIP SYSTEM INSTRIMElfrATION BRUNSWICK - 1 DENSITY CORRECTION ALARM / TRIP CHANNEL TRANSMITTER MODULE MODULE A
07/30/82 02/02/83 02/02/83 B
07/29/82 02/02/83 02/02/83 C
07/29/8 2 02/01/83 02/02/83 BRUNSWICK - 2 DENSITY CORRECTION ALARM / TRIP CllANNEL TRANSMITTER MODULE MODULE A
12/08/82 06/14/82 06/16/82 B
11/15/82 06/15/82 06/16/82 C
12/08/82 06/14/82 06/16/82