ML18026A376
| ML18026A376 | |
| Person / Time | |
|---|---|
| Site: | Susquehanna  |
| Issue date: | 08/04/1981 |
| From: | Curtis N PENNSYLVANIA POWER & LIGHT CO. |
| To: | Schwencer A Office of Nuclear Reactor Regulation |
| References | |
| IEB-80-06, IEB-80-6, PLA-898, NUDOCS 8108100109 | |
| Download: ML18026A376 (3) | |
Text
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- 8108100109 DVC ~ DATE t 81/08/04 NOTARIZED:
NO DOCKET ¹ Susquehanna Steam Electric Station<
Unit 1, Pennsylva 0500 Susquehanna Steam Electric Stationi Unit 2< Pennsylva 050 AUTH')R AFFILIATION Pennsylvania Po<<er 8 Light Co ~
RECIPIENI AFFILIATION Licensing Branch 2
SUBJECT:
Responds to request f~r Justification of containment isolation valve reset logic oer SER Outstanding Issue 44
'ities reasons
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TWO NORTH NINTH STREET, ALLENTOWN, PA. 18101 PHONEr (215) 770-5151 NORMAN W. CURTIS Vice President-Engineering 8 Construction-Nuclear 7705381 August 4, 1981 Mr. A. Schwencer, Chief Licensing Branch No.
2 Division of Licensing U.S. Nuclear Regulatory Commission Washington, D.C.
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SUSQUEHANNA STEAM ELECTRIC STATION SER OUTSTANDING ISSUE 44 ER 100450 FILE 841-2 PLA-898 DOCKET NOS. 50-387 50-388
Dear Mr. Schwencer:
The following is a difinitive statement which you requested justifying the containment isolation valve reset logic as presented in our response to IE Bulletin 80&6.
Valves HV-1F002, HV-1F003, HV-1F007, HV-lF008, HV-1F088 and HV-1F100 require no modifications to prevent automatic reopening after logic reset because the reset switch is a keylock switch with an administratively controlled key.
Any operation of the reset switch requires a deliberate operator action.
The operator is required to ensure'that the valve switches are in the correct position prior to operating the keylock reset switch.
Valves HV-1F016 A,B and HV-1F028 A,B require no modifications to prevent automatic reopening after logic reset and all signals clear because the inboard valves, HV-lF021, HV-1F027 and HV-lF024, are already designed so that they do not automatically reopen.
The inboard valves will maintain containment integrity when the logic is reset.
If you have any further questions, please contact us.
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N. W. Curtis Vice President-Engineering 6 Construction-Nuclear CTC/mks PENNSYLVANIA POWER 8
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