ML20039F061
| ML20039F061 | |
| Person / Time | |
|---|---|
| Site: | 05000561 |
| Issue date: | 11/02/1977 |
| From: | Taylor J BABCOCK & WILCOX CO. |
| To: | Boyd R Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML111090060 | List:
|
| References | |
| FOIA-80-515, FOIA-80-555 NUDOCS 8201110786 | |
| Download: ML20039F061 (3) | |
Text
.
Babcock &Wilcox.
%er ceneration aroup P.O. Box 1260, Lynchburg, Va. 24505 Telephone: (804) 384-5111 November 2, 1977 DOCKET STN 50-561 Office of Nuclear Reactor Regulation ATTN:
Mr. Roger S. Boyd, Director Division of Project Management U.S. Nuclear Regulatory Commission Washington, D.C.
20555
Subject:
B-SAR-205 Transmittal of Amendment 20
Dear Mr. Boyd:
The Babcock 6 Wilcox Company herewith submits sixty copies of B-SAR-205 Amendment 20 for review.
This amendment contains the following specific items:
1)
As agreed to by the Staff, section 7.3 and figure 7.3-1 have been revised to reflect a change to the ESFAS.
Specifically, the portion of the B-SAR ESFAS design related to containment isolation has been made identical to the design for PASNY.
This change maintains the signal diversity required by the Staff for isolation purposes; i.e.,
containment isolation will occur as a result of either low reactor system pressure or high containment pressure.
To accomplish this change (see figure 7.3-1), an "0R" gate has been added in the con-tainment isolation circuit in each ESFAS channel.
This "0R" gate receives input signals from both the containment pressure and the RC pressure sensor sub-systems.
The response to NRC question 022.11 has also been modified to be consistent with the above change.
2)
As agreed to with the Staff, table 7.5-4 has been corrected by deletion of the HPI flow indication to agree with table 7.5-1.
The HPI indication is un-necessary for hot shutdown since pressurizer level and pressure indications are provided.
8201110786 810403 PDR FOIA MADDEN 80-515 PDR i
The Babcock & Wilecx Ccmpany / Estabbshed 1867
m Babcock &Wilcox Mr. Roger S. Boyd Page 2 November 2, 1977 3)
Figures 6.3-7a, 7b and 7c have been corrected to show proper numbering for piggy back crossover valves DH 17A 6 B and dump to sump valves DH 16A 6 B.
These figures have also been updated to include the bypass lines and check valves added in B-SAR Amendment 17 around valves DH 12A 6 B in the decay heat suction lines.
4)
Table 8.3-1 has been updated to include additional safety-related valves.
5)
A number of typographical errors have been corrected.
V truly yo r i
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[L a'mes H. ' Taylor Manager, Licensing JHT:dsf
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Attachments cc:
R. B. Borsum (B6W)
U. S. Nuclear Regulatory Commission (1)
Office of Inspection and Enforcement - Region IV 611 Ryan Plaza Drive - Suite 1000 Arlington, Texas 76012 Mr. Neil Thomasson (3)
Attn:
Loretta Long Office of Radiation Programs Environmental Protection Agency t
Room 647A East Tower Waterside Mall 401 M Street, S.W.
Washington, D.C.
20460 Mr. A. J. Oswald (1)
EG6G Idaho, Inc.
P. O. Box 1625 Idaho Falls, Idaho 83401 l
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' Babcock &Wilcox STATE OF VIRGINIA)
)
SS. Lynchburg CITY OF LYNCHBURG)
James H. Taylor, being first duly sworn, deposes, and says:
That he is the Manager of the Licensing Section of the Nuclear Power Generation Division, THE BABCOCK 6 WILCOX COMPANY, the applicant herein; that he is authori::ed to submit the foregoing on behalf of said applicant; that he has read the foregoing and knows the contents hereof; and believes the same to be true to the best of his kn'owledge.
/
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Dated:
/
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' ( [,t: O' James H. Tay1
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Subscribgdandsworntobeforeme,
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this /
day of November, 1977.
NA No[ary Public in and for the State of Virginia, City of Lynchburg My Commission expires
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