ML20127C196
| ML20127C196 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley, 05000000 |
| Issue date: | 10/23/1984 |
| From: | Sheron B Office of Nuclear Reactor Regulation |
| To: | Knighton G Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20126J910 | List: |
| References | |
| FOIA-84-926 NUDOCS 8410260219 | |
| Download: ML20127C196 (3) | |
Text
DISTRIBUTION Docket File i
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- f RSB R/F RSB P/F: Beaver Valley ELantz R/F BSheron E 2 3 1984 LMarsh ELantz MEMORANDUM FOR:
George Knighton, Chief. Licensing Branch #3 Division of Licensing FROM:
Brian W. Sheron, Chief, Reactor Systems Branch Division of Systems Integration
SUBJECT:
BEAVER VALLEY UNIT 2 OPERAT1HG LICENSE REVIEW Plant Name:
Beaver Valley Unit 2 Docket Ho.:
50-412 Licensing Stage:
OL Responsible Branch:
Licensing Branch f3 Pro.iect Manager:
M. Licitra/M. Ley Review Branch:
Reactor Systems Branch Review Status:
Awaiting Information The information requested in the enclosure is needed for closure of Outstanding Issue f162 and for clarification of the pressurizer pressure
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relief system that is installed in Beaver Valley Unit 2.
OrifiMI figiled bf.
Brian W. Sherca Brian W. Sheron, Chief Reactor Systems Branch Division of Systems Integration
Enclosure:
As stated
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R. W. Houston
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RSB S/Ls M. Licitra a
M. Ley Il fl 0 g CONTACT:
E. Lantz, RSB x27839 Y
- PREVIOUS CONCURRENCE SHEET ON FILE U/RSB.
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DISTRIBUTION Docket File
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RSB R/F RSB P/F: Beaver Valley ELantz Rdg.
BSheron
-LMars h Etantz MEWJRAHDUM FOR:
George Knighton, Chief. Licensing Branch #3 D vision of Licensing FROM:
Bria M. Sheron, Chief Reactor Systems Branch DivisTqn of Systems Integration
SUBJECT:
BEAVER V LEY UNIT 2 OPERATING LICENSE REVIEW Plant llame:
Beaver alley Unit 2 Docket No.:
50-412 Licensing Stage:
OL Responsible Branch:
Licensing Brynch #3 Project Manager:
M.Licitra/M.NLey Review Branch:
Reactor System Branch Review Status:
Awaiting Informa ion The information requested on the attachment i needed for closure of Outstanding Issue.f162 and for clarification o the pressurizer pressure relief system that is installed in Beaver Valley nit 2.
Brian W. Sheron, Chie Reactor Systems Branch
~ Division of Systems Inte ration cc:
R. W. Houston RSB S/Ls M. Licitra M. Ley CONTACT:
E. Lantz, RSB x27839 DSI J S
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BEAVER VALLEY-2 OPERATING LICENSE RE00EST FOR ADDITIONAL INFORMATION 440.75 In its July 23, 1984, draft response to Outstanding Issue #162 the Duquesne Light Company compared the details of natural circulation at Beaver Valley Unit 2 to those of North Anna Unit 2 where a natural circulation. test was performed.
However, the Reactor Systems Branch (RSB) has not received the results nor the analysis of the North Anna 2 test. Thus North Anna Unit 2's ability to satisfy the natural circulation criteria of SRP Branch Technical Position, RSB 5-1, has not been confirmed.
The RSB wi.ll have to receive and confirm that the results of the North Anna Unit 2 natural circulation test
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~ prove compliance with RSB 5-1 before this issue can be closed.
i' 440.76 The functional diagram for the pressure relief system on the pressurizer, which is Figure 7.2-1 Sheet 17 of the Beaver Valley Unit 2 FSAR, shows an " Auto" position on the PORV block valve control switch. Does this mean that when the switch is in this " Auto" position the pressurizer, PORV, bloc'k valve will automatically close on the loss of pressurizer pressure?
If so: (1) What are the set points on this automatic closure system?
(2) Is automatic closure accounted for in the emergency procedures which will be followed after a steam generator tube rupture?
(3) What alarms will alert the operator if the switch is in the wrong position?
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