ML19289D103
| ML19289D103 | |
| Person / Time | |
|---|---|
| Site: | Yankee Rowe |
| Issue date: | 01/23/1979 |
| From: | Groce R YANKEE ATOMIC ELECTRIC CO. |
| To: | Office of Nuclear Reactor Regulation |
| References | |
| TASK-05-02, TASK-5-2, TASK-RR WYR-79-7, NUDOCS 7901290232 | |
| Download: ML19289D103 (2) | |
Text
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Telephone 617 366-9011 rwr 750-390-0739 YANKEE ATOMIC ELECTRIC COMPANY n!I 20 Turnpuke Road Westborough, Mossochusetts 01581
".E E WR 79-7 January 23, 1979 United States Nuclear Regulatory Commission Washington, D. C.
20555 Attention: Office of Nuclear Reactor Regulation
Reference:
(a) License No. DPR-3 (Docket No. 50-29)
(b) USNRC Letter to YAEC, dated December 21, 1978
Dear Sir:
Subject:
Systematic Evaluation Program (SEP)
In your letter, ceference (b), you requested chat we verify the correctness of the information presented on the enclosed table and supply additional information relative to SEP Topic V-11.A.
We have verified that the information presented on the table is correct and have supplied the additional inforcation,by filling in the blanks on the table. The completed table is attached.
We trust this information is acceptable to you; however, should you have any questions, please contacc Mr. David A. Hansen of this office.
Very truly yours, N
YANKEE ATOMIC ELECTRIC COMPAM Robert H. Groce Licensing Engineer RHG/e=
Enclosure 790129 0237
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Evaluation of Isolation of Low Pressure Systems from Reactor Coolant System PLANT: Yankee Rowe
.g Meets Redundancy Testable Location of Check Method of 3,4 Isolation of Type Between HP/LP Valve Pressure Method of l
Direct Interfacm Criteria 7 Isolation Valves Valves interface Orien tation Reduction Inolation Remarks Relief valve / rupture disk Letdown System Yes 1 A.O.
Yes Outside NA Orifices Auto (LCV-222)
Containment and/or provides backup to RV/RD R.V./R.D.
RV/RD Auto NA NA NA NA NA NA NA Rowe doesn't have Sc 1 SealInjegtgon Injection System. (Ca 1ed System
- Rotor Main Coolant Pumpa).
ECCS Low Pressure Yes (sae 3 check No At least one All 3 NA NA Accumulator and low pressure Injection remarks) outside and Ilorizontal injection system share comon line. Three check valves.
g one inside Accumulators containment sampling System Yes (see 1 A.O.
Yes outside NA Orifice
- "to Single auto A.O. valve s
outside containment.
remarks)
(TV-206)
Containment N rmally closed valve 1 M.O.
Downstream M
du fns!de containment.
(S A-MOV -51I of TV-206 RHR System Suction Side Yes 2MO No Insida NA NA Administrative Single drop line SC--MOV Containient both valves key locked closed 5526554 common key all 4 valves (suction and discharge)
(No auto closure or open permissive Discharge Side Yes 2MO No Inside NA NA interlock)
SC-MOV Containment 5516553 A.O.
Air Operated RV/RD Relief Valve / Rupture Disk M.0, Motor Operated NA Not Applicable
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