ML19220B243
| ML19220B243 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 01/17/1978 |
| From: | Tedesco R Office of Nuclear Reactor Regulation |
| To: | Vassallo D Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML19220B244 | List: |
| References | |
| NUDOCS 7904250535 | |
| Download: ML19220B243 (2) | |
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JAH 17 y e
i pW g - 3 2c HE%WDUM FOR:
D. B. Vassallo, Assistant Director for Light Water Reactors, Division of Project Management FROM:
R. L. Tedesco. Assistant Director for Plant Systas, Division if Systes:s Safety
SUBJECT:
SUPPLEFENT NO. 3 TO 111E THREE MILE ISLAND NUCLEAR STATION. UNIT 2. SER In our SER, we concluded that the design for each diesel genera *wr air starting system was acceptable based on our position that the system contain two air storage tanks with a tAcal capacity of ten starts.
In Aaend:nent 60, the applicant reduced the capacity of the two air storage tanks to a total of five starts. This design is unacceptable as stated in the Supplement. Attached is our revised evaluation.
Or!ghal signed by:
Robert L Tedesco Robert L. Tedesco Assistant Director for Plant Systems Division of Syste:::s Safety Enclosure cc:
S. Hanauer R. Mattson R. Boyd R. Hartfield V. Benaroya S. Varga D. Fischer P. Matthews H. Silver J. Glynn P. Hearn DISTRIBUTION:
CENTAL FILES NRR READING
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JAN 171978 9.5.6.2 Other Deisel Generator Auxiliary Systems In the SER, the design of the air starting system for each diesel generator was found acceptable based on a proposed system containing two air storage tanks with a total capacity for ten starts.
In Amendment 60, the applicant reduced the air storage capacity from ten to five starts.
We find this change unacceptable. As stated in Paragraph II of Standard Review Plan Section 9.5.6, it is our position that an acceptable design contains two storage tanks with a total capacity for ten starts.74-220
O JAN 161978 MD_0RANDUM FCR:
V. Benaraya, Chief, Arrr411ary Systems Branch, DSS C. Lai um, Chiaf, Eontsimment Systems Branch, DSS T. Novak, C11ef, Reactor Systems 3 ranch, DSS FRCH:
- 1. J. Bosnak, Chief, Mechanfe=1 Engineering Branch, DSS SU3JEC":
TIT'4R't MILE ISLAD UNIT 2, REQUEST FOR RELIEF /RCH CZRTAI" ASME CODE SECTION XI PEMPS AND VATIES INSERVICZ TESTING REQUIRNTS - DOCT.HT 'J0. 50-320 The Mechanieml Engineering Branch, Division of Systems Safety, has received the request for relief frcm certain requirements of the ASIC Codo Section II,1974 Edition including Addenda through Sumer 1975 fecu Metropolitan Zdison Company. Se information related to the proposed inservice testing program is attached. We request your assistanca to evaluate the acceptability of the progruns in ycur area, especially, in regards to the completeness, claasification, and relief requests from tasting of pumpe and velves. We vould appreciate your causents as soon as possible.
So that we can establish a realistic schedule for cotspletion of this review ef fort, please advise us by return meno your best estimate as to when you vill be able to provide your em ents.
R. J. Bosnak, Chief Mechanical Ecgineering Branch Division of Syste=a Safety
Attachment:
M;Bted 1er GQL 001 dtd. Jan. 3, 1978 with encin-res DISTRIEUTION:
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Central File R. Ecyd, FM NRR Reading File R. Hartfield. XIPC DSS:ME3Readingy!,}e j ',' {
R. Mattson, SS J. Enight, SS D. Eisenhut, OR D. Ross, SS 7904250597
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