ML20195C948
| ML20195C948 | |
| Person / Time | |
|---|---|
| Issue date: | 10/26/1988 |
| From: | Long W Office of Nuclear Reactor Regulation |
| To: | Kintner E GENERAL PUBLIC UTILITIES CORP. |
| References | |
| PROJECT-669A NUDOCS 8811040103 | |
| Download: ML20195C948 (2) | |
Text
r October 26, 1988
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Project.lo. C69 Mr. E. E. rIntner, Chairman ALWR Steering Conraittee GPU Nuclear Corporation One Upper Pond Road Parsippany, New Jersey 07054
Dear Mr. Kintner:
SUBJECT:
EPRI-ALWR REQUIREMENTS 59CUMENT CHAPTER 3 -
CHEMICAL AND VOLUME CONTROL SYSTEM OPEN I Ult In sur May 13, 1988 Draf t Safety Evaluation Report (CSER) of Chapter 3 of the Advanced Light Water Requireents Document. we made two str+ inents concerning the Chemical and Volume Control System (CVCS) which requir c srification.
We stated that insufficient details were provided to enable a final determination to be made regarding compliance of the systen design with the U lteria of SPP Section 9.3.4 That statement was not intendert to imply that the specifications prcvided in the Requirement Document are not in agreement with the SRP requirements.
It only itated the fact that there is not enough details in the Requirement Docum>n to design a CVCS which could be certified by the hAC without further review of its design.
Our sec7nd statement, concerning operability of the CVCS under adverse post-accident conditions, relates to the reacter coolant pump seal injection function.
Section 9.3.4 of the SPR requires that this function remains operational under normal, ebne,rmal and accident ccr.ditions.
However, in Section 3.4.2.2.3 of the Requirements Dr.cument it is sper.ified that the reactor coolant pumps are to remain operatioel with a less of seal injection.
Post accident operation of the seal inju.ti e function in the Ai.WRs will not be, therefore, a safety related requiremo.at, but only a desirable desiga feature which would improve performance. Accordingly, cur staterwnt si.ould r.ot be construed as an open item.
With these two items clarified, we now consider our review of Chapter 3 CYCS requiree ots to be complete, with 00 open itemt.
Sir ecrely,
/s/
William O. Long, Project Manager i
Stardardization and Nou-Power Reactor Project Director &te Division of Reactor Projects - III, r
f IV, Y snd Special Projects no Office of Nuclear Reactor RegSlation cc:
- o. DeVine, EPRI w
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October 26, 1988 g
Project No. 669 Mr. E. E. Kin her, Chairman ALWR Steering Committee GPU Nuclear Corporation One Upper Pond Poad Parsippany, New Jersey 07054
Dear Mr. Kintner:
SL'BJECT:
EPRI-ALWR REQUIREMENTS DOCUMENT CHAPTER 3 -
CHEMICAL AND VOLUME CONTROL SYSTEM OPEN ITEM In our May 13, 1988 Draft Safety Evaluation Report (DSER) of Chapter 3 of the Advanced Light Water Requirements Document, wa cade two statements concerning the Chmical and Volume Control System (CVCS) which require clarification.
We stated tht insufficient details were provided to enable a final determination to be made regarding compliance of the system design with the criteria uf SRP Section 9.3.4.
That statement was not intended to imply that the specifications provided in the Requirement Document are not in agreement with the SRP rquirements.
It only stated the fact that there is not enough details in the Requirement Document to design a CYCS which could be certified by the NRC without further review of its design.
Our second statement, concerning operability of the CVCS under adverse pcs t-accident conditiocs, relates to the reactor coolant pump seal injection function.
Section 9.3.4 of the SPR requires that this function remains operational under normal, abnormal and accident coriditions. However, in Section 3.4.2.2.3 of the Requirements Document it is specified that the reactor coolant pumps are to remain operational with a los; of seal injection.
Post accident operation of the seal injection function in the ALWRs will not be, therefore, a safety related requiremen;, but only a desirable design feature which would improve performance. Accordingly, our statement should not be construed as an open item.
With these two items clarified, we now consider our review of Chapter 3 CVCS requirements to be complete, with no open items.
Sincerely, N
h.
William 0. Long, Project f anager l
Standardization and Non-Power Reactor Project Directorate l
Division of Reactor Projects - III, IV, Y and Special Projects Office of Nuclear Reactor Regulation cc:
J. DeVine, EPRI t
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