ML19253B834
| ML19253B834 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 01/20/1976 |
| From: | Reid R Office of Nuclear Reactor Regulation |
| To: | Arnold R METROPOLITAN EDISON CO. |
| Shared Package | |
| ML19253B831 | List: |
| References | |
| NUDOCS 7910310587 | |
| Download: ML19253B834 (3) | |
Text
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4 Distribution JAn 2 01376 Docket JBuchana.
NRC PDR File Local PDR ACRS (16)
Docket,No. 50-289 ORB 4 Rdg x
KGoller N
TCarter Metropolitan Edison Corgany RWReid ATTN:
Mr. R. C. Arnold RIngram Vice President - Generation DBridges P. O. Box 542 OELD Reading, Pennsylvania 19603 OISE (3)
DEisenhut Gentlemen:
TAbernathy We have reviewed your correspondence dated October 13, and November 12, 1975 regarding the Three Mile Island Unit 1 Reactor Building Spray System. IIowever, in order for us to complete this review it will be necessary for you to provide additional description regarding the spray system and its performance characteristics.
The specific information requested is discussed in detail in the enclosure to this letter.
You are requested to provide this information within 30 days of receipt of this letter.
Please provide your response with three signed originals and 37 additional copics.
Sincerely, Original signed by Robert W. Reid, Chief Operating Reactors Branch #4 Division of Operating Reactors
Enclosure:
Request for Additional Information 1505 143 ec:
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Ferim AEC 318 (Rev. 9 53) A2CM 0240 W u. e4 envammuswv Paintime orricas son.sae see 7910310 $ 2 7
Metropolitan Edison w'o pany January 20, 1976 cc:
G. F. Trowbridge, Esc.uire Shu., ?ie.rn:n, istts, Tret ridge 5 " ddan Barr 3uilding 910 17th Strc::, N. N.
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GPU Service Corporation Richcrd N. I!cvard, Project nager Thomas M. Crit-ins, Jr., Safety and Licensing Manager 260 Cherry Hill. Road Parsippany, New Jersey 07054 Pennsylvania Elcetric Company Mr. R. N. Conrad
' ice President, Generation 1001 Broad Street Johnstown, Pennsylvania 15907 Mr. 1:eldon B. Archart, Chairman Board of Supervisors of Lcndenberry Township 2113 Foxiana P.Ond Middletown, Pennsylvania 17057 Miss Mary V, Southard, Chaiman Citi:cas for a Safe Environ:ent P. O. Lox 405 Harrisburg, Pennsylvania 17103 Government Publications Section State Library of Pennsylvania Box 1601 (Educ.c. tion Building)
Harrisburg, Pennsylvania 17126 1505 144 l'
REQUEST FOR ADDITIONAL INFORMATION TEREE MILE ISLAND, UNIT 1 DOCKET NO. 50-289 Discuss how the minimum static pressure at the points where the chemical tank discharge lines join the lines leading from the BNST to the spray pumps was determined.
Provide system drawings showing the elevation of the chemical tanks, BWST, and connecting piping.
Describe and justify the methods used for. determining the static pressure head due to the liquid in the BWST, the aspiration force in the spray lines at the chemical tank discharge points, and t.:e friction forces involved.
Since free vnrtex for ntion in the F'/ ST cculd at fect the static pressure head, provide the folicwing infor-mation:
a.
Provide the liquid heights in the EWST at the end of the injection phase.
b.
Provide the maximum liquid velocity in the suction lines and the suction line diameters.
Describe any anti-vortex formation devices that are provided c.
in the BWST.
Provide an analysis of the effectiveness of these devices and include available empirical da'a which demonstrates that they will be effective in preventing vortex formation.
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