ML20125D443
| ML20125D443 | |
| Person / Time | |
|---|---|
| Issue date: | 10/14/1977 |
| From: | Baer R Office of Nuclear Reactor Regulation |
| To: | Eisenhut D Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20125D401 | List: |
| References | |
| REF-GTECI-A-26, REF-GTECI-RV, TASK-A-26, TASK-OR NUDOCS 8001140305 | |
| Download: ML20125D443 (1) | |
Text
!
4 UNITED 5TATES
, 'y
- bt NUCLEAR REGULATORY COMMISSION
", WASHINGTON, D. C. 20565
- e
\**.../ OCT 141977 NOTE T0: Darrell G. Eisenhut, Assistant Director for Opr: rational Technology, D0R FROM: Robert L. Baer, Chief, Reactor Safety Branch., D0R
SUBJECT:
CONCURRENCE WITH REACTOR SYSTEM BRANCH POSITION ON OVERPRESSURE' PROTECTION I have discussed the attached memorandum dealing with Reactor Coolant System Overpressure Protection with Tom Novak and Jerry Mazetis. I reccmmend concurrence subject to the changes listed below. Jerry (acting for Tom) agreed to make these changes:
- 1. The cover letter should be revised to clarify the implementation schedule and review procedures for plants that will be receiving an OL during 1977 and 1978. Specifically:
(a) plants receiving an OL prior to promulgation of this position will be required to submit a proposal for a satisfactory over-pressure protection system which will not have to be backfit to satisfy the proposed DSS position on new plants.
(b) for plants receiving an OL after promulgation of the DSS BTP, which are permitted to operate for their first cycle based on the ability of the pretsure veseel to attain pressures as high as the setpoint of the primary system safety valves at ambient temperature without failure DSS will obtain a committment from the licensee to fully implement the DSS BTP no later than the first refueling outage.
The cover letter should state the DSS believes that the criteria that they are using prior to promulgation of this position (e.g., Davis Besse) and that DDR is using on operating plants are satisfactory and that backfitting of these plants is not intended.
'3. Section B2 should be revised to clarify the intent of that paragraph.
Specifically, the licensee will not be permitted to astutely write technical specification such that the licensee could administrative 1y eliminate certain scenarios (e.g., safety injection pump operation) from consideration in his overpressure protection system design analyses.
ph&1 90017174 Robert L. Baer, Chief Reactor Safety Branch Division of Operating Reactors cc: D. Ross T. Novak J. Mazetis 8001140 C. Berlinger
_ _ _ _ _